Lincoln Electric Welder 7F User Manual

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IM539  
October, 1999  
Synergic 7F and Synergic 7FH  
Semiautomatic Wire Feeders or Controls with code numbers 10189, 10190 & 10191  
Safety Depends on You  
Lincoln arc welding and cutting  
equipment is designed and built  
with safety in mind. However, your  
overall safety can be increased by  
proper installation ... and  
thoughtful operation on your part.  
DO NOT INSTALL, OPERATE  
OR REPAIR THIS EQUIPMENT  
WITHOUT READING THIS  
MANUAL AND THE SAFETY  
PRECAUTIONS CONTAINED  
THROUGHOUT. And, most  
importantly, think before you act  
and be careful.  
OPERATOR’S MANUAL  
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Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com  
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7.c.Do not add the fuel near an open flame  
welding arc or when the engine is running.  
Stop the engine and allow it to cool before  
refueling to prevent spilled fuel from  
vaporizing on contact with hot engine parts  
and igniting. Do not spill fuel when filling  
tank. If fuel is spilled, wipe it up and do not  
start engine until fumes have been  
eliminated.  
4.f. Sparks and spatter are thrown from the welding arc. Wear oil  
free protective garments such as leather gloves, heavy shirt,  
cuffless trousers, high shoes and a cap over your hair. Wear  
ear plugs when welding out of position or in confined places.  
Always wear safety glasses with side shields when in a  
welding area.  
4.g. Connect the work cable to the work as close to the welding  
area as practical. Work cables connected to the building  
framework or other locations away from the welding area  
increase the possibility of the welding current passing through  
lifting chains, crane cables or other alternate circuits. This can  
create fire hazards or overheat lifting chains or cables until  
they fail.  
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7.d. Keep all equipment safety guards, covers  
and devices in position and in good repair.  
Keep hands, hair, clothing and tools away  
from V-belts, gears, fans and all other  
moving parts when starting, operating or  
repairing equipment.  
4.h. Also see item 7c.  
7.e. In some cases it may be necessary to remove safety  
guards to perform required maintenance. Remove  
guards only when necessary and replace them when the  
maintenance requiring their removal is complete.  
Always use the greatest care when working near moving  
parts.  
CYLINDER may explode  
if damaged.  
5.a. Use only compressed gas cylinders  
containing the correct shielding gas for the  
process used and properly operating  
regulators designed for the gas and  
pressure used. All hoses, fittings, etc. should be suitable for  
the application and maintained in good condition.  
7.f. Do not put your hands near the engine fan. Do not  
attempt to override the governor or idler by pushing on  
the throttle control rods while the engine is running.  
5.b. Always keep cylinders in an upright position securely  
chained to an undercarriage or fixed support.  
7.g.To prevent accidentally starting gasoline engines while  
turning the engine or welding generator during maintenance  
work, disconnect the spark plug wires, distributor cap or  
magneto wire as appropriate.  
5.c. Cylinders should be located:  
• Away from areas where they may be struck or subjected to  
physical damage.  
--------------------------------------------------------------------------------  
• A safe distance from arc welding or cutting operations and  
any other source of heat, sparks, or flame.  
5.d. Never allow the electrode, electrode holder or any other  
electrically “hot” parts to touch a cylinder.  
7.h. To avoid scalding, do not remove the  
radiator pressure cap when the engine is  
hot.  
5.e. Keep your head and face away from the cylinder valve outlet  
when opening the cylinder valve.  
5.f. Valve protection caps should always be in place and hand  
tight except when the cylinder is in use or connected for  
use.  
ELECTRIC AND MAGNETIC FIELDS  
5.g. Read and follow the instructions on compressed gas  
cylinders, associated equipment, and CGA publication P-l,  
“Precautions for Safe Handling of Compressed Gases in  
Cylinders,”available from the Compressed Gas Association  
1235 Jefferson Davis Highway, Arlington, VA 22202.  
may be dangerous  
8.a. Electric current flowing through any  
conductor causes localized Electric and  
Magnetic Fields (EMF). Welding current  
creates EMF fields around welding cables  
and welding machines.  
FOR ELECTRICALLY  
powered equipment.  
8.b. EMF fields may interfere with some pacemakers, and  
welders having a pacemaker should consult their physician  
before welding.  
6.a. Turn off input power using the disconnect  
switch at the fuse box before working on  
the equipment.  
8.c. Exposure to EMF fields in welding may have other health  
effects which are now not known.  
6.b. Install equipment in accordance with the U.S. National  
Electrical Code, all local codes and the manufacturer’s  
recommendations.  
8d. All welders should use the following procedures in order to  
minimize exposure to EMF fields from the welding circuit:  
8.d.1. Route the electrode and work cables together - Secure  
them with tape when possible.  
6.c. Ground the equipment in accordance with the U.S. National  
Electrical Code and the manufacturer’s recommendations.  
8.d.2. Never coil the electrode lead around your body.  
8.d.3. Do not place your body between the electrode and  
work cables. If the electrode cable is on your right side,  
the work cable should also be on your right side.  
FOR ENGINE  
powered equipment.  
7.a. Turn the engine off before troubleshooting and maintenance  
work unless the maintenance work requires it to be running.  
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8.d.4. Connect the work cable to the workpiece as close as  
possible to the area being welded.  
8.d.5. Do not work next to welding power source.  
7.b. Operate engines in open, well-ventilated  
areas or vent the engine exhaust fumes  
outdoors.  
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Mar. ‘93  
3 –  
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zones où l’on pique le laitier.  
PRÉCAUTIONS DE SÛRETÉ  
6. Eloigner les matériaux inflammables ou les recouvrir afin de  
prévenir tout risque d’incendie dû aux étincelles.  
Pour votre propre protection lire et observer toutes les instructions  
et les précautions de sûreté specifiques qui parraissent dans ce  
manuel aussi bien que les précautions de sûreté générales  
suivantes:  
7. Quand on ne soude pas, poser la pince à une endroit isolé de  
la masse. Un court-circuit accidental peut provoquer un  
échauffement et un risque d’incendie.  
Sûreté Pour Soudage A L’Arc  
1. Protegez-vous contre la secousse électrique:  
8. S’assurer que la masse est connectée le plus prés possible de  
la zone de travail qu’il est pratique de le faire. Si on place la  
masse sur la charpente de la construction ou d’autres endroits  
éloignés de la zone de travail, on augmente le risque de voir  
passer le courant de soudage par les chaines de levage,  
câbles de grue, ou autres circuits. Cela peut provoquer des  
risques d’incendie ou d’echauffement des chaines et des  
câbles jusqu’à ce qu’ils se rompent.  
a. Les circuits à l’électrode et à la piéce sont sous tension  
quand la machine à souder est en marche. Eviter toujours  
tout contact entre les parties sous tension et la peau nue ou  
les vétements mouillés. Porter des gants secs et sans trous  
pour isoler les mains.  
b. Faire trés attention de bien s’isoler de la masse quand on  
soude dans des endroits humides, ou sur un plancher  
metallique ou des grilles metalliques, principalement dans  
les positions assis ou couché pour lesquelles une grande  
partie du corps peut être en contact avec la masse.  
c. Maintenir le porte-électrode, la pince de masse, le câble de  
soudage et la machine à souder en bon et sûr état  
defonctionnement.  
9. Assurer une ventilation suffisante dans la zone de soudage.  
Ceci est particuliérement important pour le soudage de tôles  
galvanisées plombées, ou cadmiées ou tout autre métal qui  
produit des fumeés toxiques.  
10. Ne pas souder en présence de vapeurs de chlore provenant  
d’opérations de dégraissage, nettoyage ou pistolage. La  
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs  
du solvant pour produire du phosgéne (gas fortement toxique)  
ou autres produits irritants.  
d.Ne jamais plonger le porte-électrode dans l’eau pour le  
refroidir.  
e. Ne jamais toucher simultanément les parties sous tension  
des porte-électrodes connectés à deux machines à souder  
parce que la tension entre les deux pinces peut être le total  
de la tension à vide des deux machines.  
11. Pour obtenir de plus amples renseignements sur la sûreté, voir  
le code “Code for safety in welding and cutting” CSA Standard  
W 117.2-1974.  
f. Si on utilise la machine à souder comme une source de  
courant pour soudage semi-automatique, ces precautions  
pour le porte-électrode s’applicuent aussi au pistolet de  
soudage.  
2. Dans le cas de travail au dessus du niveau du sol, se protéger  
contre les chutes dans le cas ou on recoit un choc. Ne jamais  
enrouler le câble-électrode autour de n’importe quelle partie du  
corps.  
3. Un coup d’arc peut être plus sévère qu’un coup de soliel, donc:  
PRÉCAUTIONS DE SÛRETÉ POUR  
LES MACHINES À SOUDER À  
TRANSFORMATEUR ET À  
REDRESSEUR  
a. Utiliser un bon masque avec un verre filtrant approprié ainsi  
qu’un verre blanc afin de se protéger les yeux du  
rayonnement de l’arc et des projections quand on soude ou  
quand on regarde l’arc.  
b. Porter des vêtements convenables afin de protéger la peau  
de soudeur et des aides contre le rayonnement de l‘arc.  
1. Relier à la terre le chassis du poste conformement au code de  
l’électricité et aux recommendations du fabricant. Le dispositif  
de montage ou la piece à souder doit être branché à une  
bonne mise à la terre.  
c. Protéger l’autre personnel travaillant à proximité au  
soudage à l’aide d’écrans appropriés et non-inflammables.  
2. Autant que possible, I’installation et l’entretien du poste seront  
effectués par un électricien qualifié.  
4. Des gouttes de laitier en fusion sont émises de l’arc de  
soudage. Se protéger avec des vêtements de protection libres  
de l’huile, tels que les gants en cuir, chemise épaisse,  
pantalons sans revers, et chaussures montantes.  
3. Avant de faires des travaux à l’interieur de poste, la debrancher  
à l’interrupteur à la boite de fusibles.  
5. Toujours porter des lunettes de sécurité dans la zone de  
soudage. Utiliser des lunettes avec écrans lateraux dans les  
4. Garder tous les couvercles et dispositifs de sûreté à leur place.  
-4-  
Mar. ‘93  
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TABLE OF CONTENTS  
Page  
GENERAL DESCRIPTION..................................................................................................7  
RECOMMENDED PROCESSES AND EQUIPMENT .........................................................7  
STANDARD FEATURES ....................................................................................................7  
Wire Drive Features..........................................................................................................7  
Control Features ...............................................................................................................8  
KEYPAD AND DISPLAY DESCRIPTION...........................................................................9  
OPTIONAL FEATURES ..................................................................................................10-11  
Drive Roll and Guide Tube Kits........................................................................................10  
Input Cable Assemblies ...................................................................................................10  
Wire Reel Assemblies......................................................................................................10  
Readi-Reel Adapters........................................................................................................11  
Spindle Adapters..............................................................................................................11  
Gun and Cable Assemblies .............................................................................................11  
Miscellaneous Options.....................................................................................................11  
SPECIFICATIONS..............................................................................................................12  
INSTALLATION..................................................................................................................13  
Installation of Synergic 7F Components ..........................................................................14  
Wire Feed Drive Roll and Guide Tube Kits......................................................................14  
PROCEDURE TO INSTALL DRIVE ROLL AND GUIDE TUBES......................................14  
Standard 4-Roll Kits (KP571 and KP572)........................................................................14  
Gun and Cable Assemblies...........................................................................................15-16  
Synergic 7F Water Connections (For Water-Cooled Guns).............................................16  
GMAW Shielding Gas with Gas Guard Regulator ...........................................................16  
Electrical Installation ........................................................................................................17  
Input Cable: Synergic 7F Wire Feeder to Invertec Synergic Type Power Sources ...17  
Work Cable ......................................................................................................................17  
OPTIONAL FEATURES INSTALLATION..........................................................................18  
OPERATING INSTRUCTIONS........................................................................................19-26  
Keypad Setup and Operation...........................................................................................19  
Power-Down Save ......................................................................................................19  
Operation Keys ...........................................................................................................19  
Mode Selection ...........................................................................................................19  
Display Control Keys...................................................................................................20  
Timer/Crater Select.....................................................................................................21  
Acceleration Selection .....................................................................................................21  
Selection of English or Metric Speed Display Units.........................................................21  
Run-In Selection ..............................................................................................................21  
4-Step Trigger Mode Selection ........................................................................................22  
Wire Reel Loading - Readi-Reels and Spools...............................................................22-24  
Feeding Electrode and Brake Adjustment .......................................................................22  
Adjustable Wire Reel Brake.............................................................................................23  
Idle Roll Pressure Setting ................................................................................................24  
Gas Guard Regulator Setting...........................................................................................24  
Making a Weld .................................................................................................................25  
Wire Reel Changing.........................................................................................................25  
Wire Feed Overload Protection........................................................................................25  
Explanation of Prompting and Error Messages ...............................................................26  
MAINTENANCE .................................................................................................................27  
Routine Maintenance.......................................................................................................27  
Avoiding Wire Feeding Problems.....................................................................................27  
Periodic Maintenance ......................................................................................................27  
TROUBLESHOOTING GUIDE ........................................................................................28-35  
Procedure for Replacing PC Boards................................................................................36  
Gun Cable Connector Requirements to Permit Proper Connection to Wire Feed Unit ...36  
WIRING DIAGRAM ............................................................................................................37  
CONNECTION DIAGRAM..................................................................................................38  
DIMENSION PRINTS.......................................................................................................39-40  
PARTS MANUAL.......................................................................................................P-266 Series  
5 –  
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for selecting a QUALITY product by Lincoln Electric.  
We want you to take pride in operating this Lincoln  
Electric Company product ••• as much pride as we  
have in bringing this product to you!  
Thank You  
Please Examine Carton and Equipment For Damage Immediately  
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims  
for material damaged in shipment must be made by the purchaser against the transportation company at the time  
the shipment is received.  
Please record your equipment identification information below for future reference. This information can be found  
on your machine nameplate.  
Code Number _____________________________________  
Serial Number _____________________________________  
Model Name _____________________________________  
Date of Purchase __________________________________  
Whenever you request replacement parts for or information on this equipment always supply the information you  
have recorded above.  
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it  
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.  
The level of seriousness to be applied to each is explained below:  
WARNING  
This statement appears where the information must be followed exactly to avoid serious personal injury or  
loss of life.  
CAUTION  
This statement appears where the information must be followed to avoid minor personal injury or damage to  
this equipment.  
6 –  
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The Synergic 7FH wire feed unit has the following  
wire feeding capabilities:  
GENERAL DESCRIPTION  
The Synergic 7F is a semiautomatic constant speed  
wire feeder designed specifically for use with the  
Power Wave™ type power sources. This boom or  
fixture mounting wire feeder consists of a Synergic 7F  
Control Box and the choice of the standard Synergic  
7F of High Speed Synergic 7FH wire feed unit and  
connecting cable assemblies. A serial communication  
link is supplied through the input control cable of the  
Synergic 7F enabling information to be shared  
between the power source and wire feeder control.  
The 4-Roll Synergic 7F wire feed units comes factory  
equipped with gas solenoid valve with gas fittings and  
standard Lincoln gun connector and connector for an  
optional dual procedure gun switch. Control includes a  
3-1/2 digit LED display with rotating knob encoder  
controls for setting the wire feed speed and voltage. A  
tactile-feel keypad provides selection of operating  
mode, function selection, timer selection and crater fill  
selection and parameter adjustment. Two keys  
provide Cold Feed and Gas Purge functions.  
a) Feeds .025 - .045” (0.6-1.2mm) solid wire for  
gas-metal-arc processes.  
b) Feeds .045 - (1.2mm) cored wire for Outershield  
GMA or Innershield processes.  
Recommended power sources are The Lincoln  
Electric Company Synergic type Power Wave power  
sources with 42V AC auxiliary power, and a 14-pin  
connector receptacle.  
STANDARD FEATURES  
Wire Feed Features:  
Wire Drive Unit - Incorporates low voltage permanent  
magnet motor and highly efficient two-reduction spur  
gearbox with insulated mounting bracket for mounting  
and operation in any position. The non-fluid lubricant  
won’t leak.  
The unit has 3 operating modes: 2-step trigger, 4-  
step trigger and spot. Three functions can be  
selected: Volts or Trim Preset/arc (memory) voltmeter,  
Run-in speed and weld speed (IPM or m/min.). In  
addition, when 4-step trigger mode is selected, crater  
fill WFS is also adjustable. In addition, when 4-step  
trigger mode is selected, crater fill WFS is also  
adjustable. Up to three timers are available depending  
on the mode: preflow, postflow and spot, and 5  
acceleration rates are selectable.  
“Quick Release” Wire Feed System - Provides a  
completely tool-less means for releasing and opening  
the idle roll pressure arm, precisely adjusting the idle  
roll pressure and changing the incoming and outgoing  
guide tubes.  
Drive Rolls and Guide Tubes - Provide long life,  
positive feeding and precise alignment of electrode.  
Minimizes “birdnest” or mill-thru of wire if properly set.  
(Ordered separately.)  
The K678-1 Synergic 7F control may be used with  
either of the two available 4-roll wire feed units.  
Tachometer Feedback - Provides proper wire feed  
acceleration and speed accuracy, independent of  
fluctuations in line voltage and wire loading, for  
reliable arc starting and weld consistency.  
Ordering  
Speed Range Wire Size Range  
Information Model  
Drive  
IPM (m/m)  
IN. (MM)  
K679-1  
K679-2  
Synergic  
7F  
4-Roll  
50 - 770  
(1.25 - 19.5)  
.025 - 3/32  
(0.6 - 2.4)  
Run-in Speed Setting - Allows the arc striking speed  
“Run-in” to be adjusted independently of the weld feed  
speed for starting optimization.  
Synergic  
7FH  
4-Roll  
80 - 1200  
(2.00 - 30.5)  
.025 - .045  
(0.6 - 1.2)  
The feeder to control cable assemblies are available in two types:  
Cold Feed Speed - Provides cold feed speed adjustment  
independent of weld, run-in and crater speed.  
K680-”L” Includes a control cable with a 14-pin MS style connector on each end, and a 4/0 weld  
cable. Available in lengths “L” of 16ft (4.9m) or 25ft (7.6m).  
K681-”L” Same as above but does not include weld cable available in lengths “L” of 12ft (3.6m),  
16ft (4.9m) or 25ft (7.6m).  
Adjustable Acceleration - Provides front panel  
selection of 5 acceleration rates. This feature in  
combination with Run-in Speed provides the ability to  
easily optimize starting on any process or procedure.  
RECOMMENDED PROCESSES  
AND EQUIPMENT  
Solid-State Dynamic Braking - Quickly stops wire  
feed motor to minimize wire overrun during weld  
termination. Solid-state design requires no  
maintenance.  
The Synergic 7F wire feed unit has the following wire  
feeding capabilities:  
a) Feeds .025 - 1/16” (0.6-1.6mm) solid wire for  
gas-metal-arc processes.  
b) Feeds .045 - 3/32” (1.2-2.4mm) cored wire for Outershield  
GMA or Innershield processes up to 5/64” (2.0 mm).  
7 –  
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Crater Fill - Provides crater feed speed adjustment (in  
4-step trigger mode) independent of weld, cold feed,  
or run-in speeds.  
Crater Fill - Allows setting of crater fill WFS (when 4-  
step with crater fill trigger mode is selected),  
independent of weld, cold feed, and run-in speeds.  
Solid-State Overload Protection - No circuit breaker  
to reset. Front panel display indicates time remaining  
before automatic reset.  
Spot Mode - Allows a single timed weld cycle each  
time the gun trigger is held closed. Duration (0.2-9.9  
seconds) is set by the Spot ON timer.  
Gas Solenoid Valve - Complete with inlet fittings for  
easy installation of gas is standard on Synergic 7F  
models. Also available as an option (K659-1) a Gas  
Guard regulator for flow surge suppression.  
Digital “Memory” Voltmeter - Displays arc voltage  
from 0 to 80V DC, when welding gun trigger is  
activated, with automatic polarity indication for positive  
or negative electrode. The last welding voltage  
monitored at end of weld is displayed for 5 seconds  
after weld has stopped. This allows checking actual  
voltage after weld has stopped.  
English/Metric Speed Display - Provides front panel  
selection of speed display in units of IPM or M/M.  
4-Roll Drive - Both models employ 4-Roll Drive, with  
2 driven rolls, providing optimal feeding force for  
problem feeding situations, with low wire deformation  
for improved feeding of soft wires.  
Power-down Save - All settings, including mode,  
Run-in speed, cold feed speed, crater speed, weld  
speed, timers, English-Metric units and acceleration  
are automatically saved when power is removed. This  
feature does not require batteries and when power is  
restored it will automatically return all settings to the  
state they were in when power was removed.  
However, the power source may overwrite any or all  
of these parameters after Power-Up Recall is  
complete.  
Control Features:  
Microcomputer Based Control - Provides precise  
setting and display of all parameters and precision  
timing functions. Optimizes wire drive control for crisp  
acceleration and smooth response with precise  
repeatability. Allows synergic control of various  
welding processes by communicating information over  
a serial link to the compatible power source.  
Display and Indicator Lights - Wide temperature  
range, long life, 3-1/2 digit 7-segment LED display  
with .56” (14.2mm) character height permits easy  
viewing even from long gun cable distances.  
Individual red indicator lights are high intensity LED’s  
for viewing at almost any angle.  
Encoder Controls - Rotating encoders provide  
continuous knob control for setting both Wire Feed  
Speed and Volts/Trim procedures.  
Keypad - Consists of 7 membrane keys with tactile-  
feel embossed domes. All keys are generously  
spaced to provide easy selection, even if wearing  
welding gloves.  
2-Step or 4-Step Trigger Modes - Unit operates only  
when trigger is pressed in 2-Step mode (normal)  
operation. 4-Step Trigger Mode eliminates the need  
to hold the gun trigger closed while welding.  
Both models have user selectable 4-step with crater  
fill, or as shipped, 4-step with current interlock.  
Gas Preflow and Postflow Timers - Allows setting of  
shielding gas preflow time (0-2.5 seconds) before  
welding arc starts, and gas postflow time  
(0-9.9 seconds), after welding arc stops.  
8 –  
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Function Select key enables operator to  
choose which function will be displayed as  
shown by the appropriate indicator light.  
Pressing the key causes lights to sequence  
(top to bottom) starting from the current  
indicated position. The function displayed will  
be adjustable with the rotating encoders or  
arrow keys.  
K E Y P A D A N D D I S P L A Y  
DESCRIPTION  
VOLTS  
TRIM  
/
V
RUN-IN  
WFS  
Keypad - Seven key, membrane  
type with “snap” tactile feel and  
COLD FEED  
GAS PURGE  
embossed domes.  
Long life  
design. Spatter resistant surface.  
Top Light - Indicates display of preset voltage  
or percent trim when not welding and arc  
voltage while welding (as indicated by top light  
“blinking”). The power source automatically  
determines whether preset voltage or percent  
trim will be displayed, and adjustable with  
Volts/Trim rotating encoder control.  
VOLTS  
TRIM  
RUN-IN  
WFS  
/
V
Display - 3-1/2 digit 7-segment  
LED with (+) or (-) polarity  
indicators. .56” (14.2mm) character  
height. Displays arc voltage in  
volts, wire speed in IPM or m/m and  
all timers in seconds.  
TRIGGER MODE  
PREFLOW  
POSTFLOW  
2
2-STEP  
1
STD  
4-STEP  
LOCK  
CRATER  
SPOT  
SPOT  
Middle Light - Indicates Run-in speed is being  
displayed. As shipped, these models are setup  
for a 50 IPM (1.27m/min) fixed run-in speed  
with display function deactivated. They may be  
user-selected to activate or deactivate  
adjustable Run-in display.  
Indicator Lights - Extra bright red  
LED’s for viewing at almost any  
angle. Always indicates the mode  
being used and which function or  
timer is beiing ddiissppllaayyeedd.. A function  
and a timer light will never be on at  
the same time since they can only  
be displayed one at a time.  
Bottom Light - Indicates Weld Feed Speed  
(WFS) is being displayed, and is adjustable  
with the Wire Feed Speed rotating encoder  
control.  
Cold Feed key energizes the wire  
feeder but not the power source or  
solenoid valve. Cold feed speed is  
adjustable and is displayed only  
while pressing Cold Inch, and the  
last speed selected is stored in  
memory for next Cold feeding.  
PREFLOW  
POSTFLOW  
Timer/Crater Select key enables operator to  
choose spot or gas timers, or crater speed as  
indicated by the appropriate light. Pressing the  
key causes lights to sequence (left to right, top  
to bottom) starting from the current indicated  
selection. Any parameter not available in the  
mode selected is skipped over.  
2
1
CRATER  
SPOT  
Top Left Light - indicates preflow time is being  
displayed in seconds.  
Gas Purge key energizes the  
solenoid valve but not the wire  
feeder or power source.  
Top Right Light - indicates postflow time is  
being displayed in seconds.  
Middle Light - indicates Crater Feed Speed is  
being displayed. This display will only occur if  
4-step mode with crater fill is selected.  
Mode Select key enables operator  
to choose mode of operation shown  
by the indicator lights. Pressing key  
causes mode lights to sequence  
(top to bottom) starting from the  
current indicated selection.  
2-STEP  
STD  
Bottom Light - indicates spot on time is being  
displayed in seconds.  
4-STEP  
LOCK  
SPOT  
Top Light - Indicates 2-step  
(standard) trigger mode.  
Increase arrow key increases the setting of  
the parameter selected to be displayed.  
Arrow keys do not function for Wire Feed  
Speed or Volts/Trim settings, which are  
adjusted using the rotating encoder knobs.  
Middle Light - Indicates 4-step  
(lock) trigger mode. This mode may  
be selected to include crater fill or  
weld current interlock.  
Decrease arrow key decreases the setting of  
the parameter selected to be displayed.  
Arrow keys do not function for Wire Feed  
Speed or Volts/Trim settings, which are  
adjusted using the rotating encoder knobs.  
Bottom Light - Indicates spot weld  
mode.  
9 –  
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WIRE REEL ASSEMBLY:  
OPTIONAL FEATURES  
K299 - Wire reel assembly for customer mounting. Includes  
50 - 60 lb wire reel spindle shaft, adjustable brake,  
insulation and mounting hardware.  
DRIVE ROLL AND GUIDE TUBE KITS:  
Steel Wire Sizes:  
4-Roll  
* .068 - 3/32” (1.7 - 2.4mm) Cored  
* 1/16” (1.6mm) Cored or Solid  
.045 - .052” (1.2 - 1.4mm) Solid  
.045 - .052” (1.2 - 1.4mm) Cored  
.035” (0.9-1.0mm) Cored  
.035” (0.9-1.0mm) Solid  
KP655-3/32  
KP655-1/16  
KP655-052S  
KP655-052C  
KP655-035C  
KP655-035S  
READI-REEL ADAPTERS:  
K363P - Adapts Lincoln Readi-Reel coils of electrode 30 lb  
(14 kg) and 22 lb (10 kg) to a 2” (51mm) spindle. Durable  
molded plastic one piece construction. Designed for easy  
loading; adapter remains on spindle for quick changeover.  
(used with K162H)  
.030” (0.8mm) Solid  
KP655-030S  
.023” (0.6mm) Solid  
KP655-025S  
Aluminum Wire Sizes:  
1/16” (1.6mm)  
KP656-1/16A  
KP647-1/16A**  
KP656-3/64A  
KP647-3/64A**  
KP647-040A**  
KP656-035A  
K438 - Adapts Lincoln Readi-Reel coils of electrode 50-60 lb  
(22.7-27.2 kg) to a 2” (51mm) spindle. (used with K162H).  
3/64” (1.2mm)  
.040” (1.0mm)  
.035” (0.9mm)  
SPINDLE ADAPTERS:  
Drive rolls for only cored electrode sizes are stencilled with a “C” suffix  
to the wire sizes.  
K162H - Spindle for mounting Readi-Reels and 2” (51mm)  
I.D. spools with 60 lb (27.2 kg) capacity. The shaft for the  
standard wire coils is removed from the mounting frame-  
work and the K162H is installed in its place. Includes an  
easily adjustable friction brake for control of overrun.  
Drive rolls for only solid electrode sizes are stencilled with an “S” suffix  
to the wire sizes.  
Drive rolls for aluminum wire sizes are stencilled with an “A” suffix to the  
wire sizes.  
When used with Readi-Reels a Readi-Reel adapter is  
required.  
* Not for Synergic 7H model.  
** For use with Binzel European guns. Installation instructions are  
included with these kits.  
K435 - Permits 14 lb (6 kg) Innershield coils to be mounted  
on 2” (51mm) O.D. spindles. For use with optional K162H  
adapter.  
INPUT CABLE ASSEMBLIES:  
K649 - (Used with Power Wave 450/500) Consists of an 8-  
conductor control cable with 14-pin control cable plug and a  
K468 - Permits 8” (203mm) O.D. spools to be mounted on  
2” (51mm) O.D. spindles. For use with optional K162H  
adapter.  
2
4/0 (107 mm ) electrode cable with Twist-Mate™ connector.  
It is rated at 500 amps, 60% duty cycle and is available in  
lengths of 7 ft. (2 m), 17 ft (5 m), 25 ft (7.6 m), 33 ft (10 m),  
and 50 ft (15 m).  
GUN AND CABLE ASSEMBLIES:  
K648 - (Used with Power Wave 450) Consists of an 8-  
conductor control cable with a 14-pin plug and a 4/0 (107  
mm2) electrode cable with stud terminal. It is rated at 500  
amps, 60% duty cycle and is available in lengths of 7 ft (2  
m), 17 ft (5 m), 25 ft (7.6 m), 33 ft (10 m) and 50 ft (15 m).  
The following Lincoln gun and cable assemblies are  
compatible with both the Synergic 7F and Synergic 7FH  
Wire Feed units:  
K126 - Innershield® gun and cable assemblies are rated at  
350 amps, 60% duty cycle. Maximum wire size for Synergic  
7F models is 5/64” (2.0 mm). Not recommended for  
Synergic 7FH models. (Consult sales specifications for  
appropriate models).  
K651 - (Used with Power Wave 350) Consists of an 8-  
conductor control cable with 14-pin control cable plug and a  
2
2/0 (67 mm ) electrode cable with Twist-Mate™ connector.  
It is rated at 350 amps, 60% duty cycle and is available in  
lengths of 7 ft. (2 m), 17 ft (5 m), 33 ft (10 m), and 50 ft (15  
m).  
K115 - Innershield gun and cable assemblies are rated at  
450 amps, 60% duty cycle. Maximum wire size for Synergic  
7F models is 5/64” (2.0 mm). Not recommended for  
Synergic 7FH models. (Consult sales specifications for  
appropriate models).  
K642 - (Control Cable only) Consists of an 8-conductor  
control cable with 14-pin control cable plug, without  
electrode cable, and is available in lengths of 7 ft (2 m), 17 ft  
(5 m), 25 ft (7.6 m), 33 ft (10 m) and 50 ft (15 m).  
K470 - Magnum 300 GMAW gun and cable assemblies are  
rated for 300 amps, 60% duty cycle. (Consult sales  
specifications for appropriate models).  
K643 (Control Cable Extension) Consists of an 8-conductor  
control cable with 14-pin connectors on each end for  
extending the control cable between the power source and  
the control cable. Available in lengths of 17 ft (5m), 25 ft  
(7.6m), 33 ft (10m), and 50 ft (15m).  
K471 - Magnum 400 GMAW gun and cable assemblies are  
rated for 400 amps, 60% duty cycle. (Consult sales  
specifications for appropriate models).  
K497 - Magnum 200 GMAW gun and cable assemblies are  
rated 200 amps, 60% duty cycle. (Consult sales  
specifications for appropriate models).  
10 –  
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K541 - Magnum 400 Short Neck GMAW gun and cable  
assemblies are rated 400 amps, 60% duty cycle. (Consult  
sales specifications for appropriate models).  
MISCELLANEOUS OPTIONS:  
K682 Water Connection Kit - Includes water cooled gun  
tube fittings and self-sealing outlet and inlet quick-  
connectors for mounting onto the Synergic 7F Wire Drive  
mounting bracket.  
K598 - Magnum 550 GMAW gun and cable assemblies are  
rated 550 amps, 60% duty cycle. (Consult sales  
specifications for appropriate models).  
K659-1 - (Gas Guard Regulator) Adjustable flow regulator  
K206* - Innershield Linconditioner gun and cable  
assemblies are rated 350 amps, 60% duty cycle. Maximum  
size for Synergic 7F Wire Feed unit is 5/64” (2.0 mm). Not  
recommended for Synergic 7FH Wire Feed unit. (Consult  
sales specifications for appropriate models).  
2
with removable adjustor key for CO and Argon blend gases.  
Mounts onto Wire Drive gas inlet, and reduces gas waste  
and arc start “blow” by reducing surge caused by excess  
pressure in supply hose.  
K683-1 - (Dual Procedure Switch) Kit includes gun switch  
and mountings for Lincoln Innershield and Magnum guns  
with 15 ft (4.6 m) control cable and 3-pin plug.  
K289* - Innershield Linconditioner gun and cable  
assemblies are rated 500 amps, 60% duty cycle. Maximum  
size for Synergic 7F Wire Feed unit is 5/64” (2.0 mm). Not  
recommended for Synergic 7FH Wire Feed unit. (Consult  
sales specifications for appropriate models).  
K309* - Innershield Linconditioner gun and cable  
assemblies are rated 250 amps, 60% duty cycle. Maximum  
size for Synergic 7F Wire Feed unit is 5/64” (2.0 mm). Not  
recommended for Synergic 7FH Wire Feed unit. (Consult  
sales specifications for appropriate models).  
The following Lincoln gun and cable assemblies are  
equipped with a Fast-Mate™ connector. They can be  
used with Synergic 7F Wire Feed unit by installing a  
K489-2 Fast-Mate adapter kit.  
K684 - Magnum “Super Cool” FM water cooled  
GMAW gun and cable assemblies are rated 450  
2
amps, 100% duty cycle (CO ). (Consult sales  
specifications for appropriate models).  
K498 - Magnum 200 FM GMAW gun and cable  
assemblies are rated for 200 amps, 60% duty cycle.  
(Consult sales specifications for appropriate models).  
K534 - Magnum 250L FM GMAW gun and cable  
assemblies are rated for 250 amps, 30% duty cycle.  
(Consult sales specifications for appropriate models).  
K478 - Magnum 300 FM GMAW gun and cable  
assemblies are rated for 300 amps, 60% duty cycle.  
(Consult sales specifications for appropriate models).  
K479 - Magnum 400 FM GMAW gun and cable  
assemblies are rated for 400 amps, 60% duty cycle.  
(Consult sales specifications for appropriate models).  
K556 * - GMAW process Magnum 400XA X-  
TRACTOR gun and cable assemblies are rated at 400  
amps, 60% duty cycle. (Consult sales specifications  
for appropriate models).  
K566 * - GMAW process Magnum 250XA X-  
TRACTOR gun and cable assemblies are rated 250  
amps, 60% duty cycle. (Consult sales specifications  
for appropriate models).  
* K179 type vacuum unit not recommended for use with  
Synergic 7F.  
11 –  
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SPECIFICATIONS FOR SYNERGIC 7F  
AND SYNERGIC 7FH  
WIRE FEED - (4 - ROLL)  
CONTROL  
Model  
Type  
SYNERGIC 7F  
SYNERGIC 7F  
SYNERGIC 7FH  
K678-1  
K679-1  
K679-2  
Wire Speed Range:  
IPM  
M/M  
50 - 770  
1.25 - 19.5  
80 - 1200  
2.00 - 30.5  
Wire Size Capabilities:  
Solid Electrodes  
.025 - 1/16”  
0.6 - 1.6mm  
.025 - 1/16”  
0.6 - 1.6mm  
.025 - .045”  
0.6 - 1.2mm  
Cored Electrodes  
Input Power:  
.045 - 3/32”  
1.2 - 2.4mm  
.045 - 3/32”  
1.2 - 2.4mm  
.045”  
1.2mm  
40-42 V 10%  
50/60 Hz  
4.0 Amps  
Temperature Rating:  
Operating  
-20°C to +40°C  
-40°C to +40°C  
Storage  
Dimensions:  
Height  
11.25” (285.8 mm)  
7.16” (181.9 mm)  
8.06” (204.7 mm)  
13.31” (338.1 mm)  
10.32” (262.1 mm)  
6.16” (156.5 mm)  
Width  
Depth  
Weight  
16.5 lbs (7.5 Kg)  
13.25 lbs (6.0 Kg)  
12 –  
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b) Open the control box door by removing the two  
INSTALLATION  
door screws.  
c) Mount the box.  
d) Tighten the screws.  
Safety Precautions  
e) Close the control box door and replace the door  
screws.  
WARNING  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
Connecting Wire Feed Unit to Control Box  
The Feeder to Control cable assemblies are available  
in two types:  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
K680-”L” Includes a control cable with 14-pin MS-  
style connectors on each end, and a 4/0  
weld cable to route between the Wire  
Drive and the Control Box. Available in  
lengths “L” of 16ft. (4.9m) and 25ft.  
(7.6m).  
K681-”L” Same as K680, but does not include  
weld cable. Available in lengths “L” of  
12ft. (3.6m), 16ft. (4.9m) and 25ft.  
(7.6m).  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
Only qualified personnel should  
perform this installation.  
1. Making certain the cables are protected from any  
sharp corners which may damage their jackets,  
mount the cable assembly along the boom so the  
end with the female MS-style connector pins is at  
the wire feed unit.  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
INSTALLATION OF THE SYNERGIC 7F COMPONENTS  
Mounting the Wire Feed Unit (K679-1 or -2)  
2. Connect the 14-socket cable connector to the  
receptacle on the back of the wire feed unit  
connection box.  
Mount the wire feed unit by means of the insulated  
mounting bracket attached to the bottom of the  
gearbox. Reference L9777 dimension print at the rear  
of this manual to find the size and location of the  
mounting holes. The gearbox assembly is electrically  
“hot” when the gun trigger is pressed. Therefore,  
make certain the gearbox does not come in contact  
with the structure on which the unit is mounted.  
3. At the same end, connect the electrode lead to the  
connection stud of the brass gun connection block  
on the front of the wire feed unit.  
4. At the control box end, connect the 14-pin  
connector of the cable to the mating receptacle on  
the bottom of the control box.  
The wire feed unit should be mounted so that the  
drive rolls are in a vertical plane so dirt will not collect  
in the drive roll area. Position the mechanism so it will  
point down at about a 45° angle so the wire feed gun  
cable will not be bent sharply as it comes from the  
unit.  
Electrode Routing  
The electrode supply may be either from reels, Readi-  
Reels, spools or bulk packaged drums or reels.  
Observe the following precautions:  
1. The electrode must be routed to the wire feed unit  
so that the bends in the wire are at a minimum,  
and also that the force required to pull the wire  
from the reel into the wire feed unit is kept at a  
minimum.  
Mounting the Control Box (K678-1)  
The same control box is used for both the Synergic 7F  
and Synergic 7FH wire feed units and contains two  
keyhole slots and one slot for mounting. Reference  
M17740 dimension print in the rear of this manual for  
size and location of these slots. Mount the box at  
some convenient location close to the wire feed unit  
which will enable the desired control cable assembly  
to reach between the control box and the wire feed  
unit.  
2. The electrode is “hot” when the gun is energized  
and must be insulated from the boom and  
structure.  
3. If more than one wire feed unit shares the same  
boom, their wire and reels must be insulated from  
each other and insulated from their mounting  
structure.  
a) Drill the required holes in the mounting surface,  
partially install 1/4-20 screws.  
13 –  
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Wire Feed Drive Roll and Guide Tube Kits  
PROCEDURE TO INSTALL DRIVE  
ROLL AND GUIDE TUBES  
NOTE: The maximum sizes the Synergic 7F will feed  
satisfactorily are the 3/32” (2.4mm) cored and  
WARNING  
1/16” (1.6mm) solid electrodes.  
The  
maximum sizes the synergic 7FH will feed  
satisfactorily are the .045 (1.2mm) cored and  
.045” (1.2mm) solid electrodes.  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
The electrode sizes that can be fed with each  
roll and guide tube are stencilled on each part.  
Check the kit for proper components.  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
Steel Wire Sizes:  
4-Roll  
* .068 - 3/32” (1.7 - 2.4mm) Cored  
* 1/16” (1.6mm) Cored or Solid  
.045 - .052” (1.2 - 1.4mm) Solid  
.045 - .052” (1.2 - 1.4mm) Cored  
.035” (0.9-1.0mm) Cored  
.035” (0.9-1.0mm) Solid  
KP655-3/32  
KP655-1/16  
KP655-052S  
KP655-052C  
KP655-035C  
KP655-035S  
KP655-030S  
KP655-025S  
Only qualified personnel should  
perform this installation.  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
.030” (0.8mm) Solid  
.023” (0.6mm) Solid  
Aluminum Wire Sizes:  
1/16” (1.6mm)  
Standard 4-Roll Kits (KP571 and KP572)  
KP656-1/16A  
KP647-1/16A**  
KP656-3/64A  
KP647-3/64A**  
KP647-040A**  
KP656-035A  
1) Turn off welding power source.  
3/64” (1.2mm)  
2) Release both quick release levers by sliding the  
levers sideways into the open positions.  
.040” (1.0mm)  
.035” (0.9mm)  
3) Remove hex screw & clamping collar from the  
drive shaft closest to the incoming side of the  
feeder.  
Drive rolls for only cored electrode sizes are stencilled  
with a “C” suffix to the wire sizes.  
4) Install drive roll onto keyed shaft. Double grooved  
drive rolls are to be installed with side stencilled for  
correct wire size facing out and with slotted spacer  
on top of roll. Two piece drive rolls use a spacer  
between the rolls for .068” (1.7mm) and larger wire  
sizes. (Do not exceed the maximum wire size  
rating of the wire drive.) Replace collar and  
tighten clamping screw.  
Drive rolls for only solid electrode sizes are stencilled  
with an “S” suffix to the wire sizes.  
Drive rolls for aluminum wire sizes are stencilled with an  
“A” suffix to the wire sizes.  
* Not for Synergic 7H model.  
** For use with Binzel European guns. Installation  
instructions are included with these kits.  
5) Back out the set screw for the middle guide tube.  
Install the middle guide tube and slide it up against  
the drive roll. DO NOT TIGHTEN THE MIDDLE  
GUIDE AT THIS TIME.  
6) Install the outgoing drive roll following the same  
procedure as steps 3 & 4.  
7) Center the middle guide between the two drive  
rolls and tighten in place.  
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8) Back out the screws for the incoming and outgoing  
guide tubes.  
Gun Cable Connection:  
Lay the cable out straight. Insert the connector on the  
welding conductor cable into the brass conductor  
block on the front of the Synergic 7F gearbox. Make  
sure it is all the way in and tighten the hand wheel.  
Keep this connection clean and bright. Connect the  
trigger control cable polarized plug into the mating 5  
cavity receptacle on the front of the Synergic 7F Wire  
Feed Unit.  
9) Install the longer guide tube in the rear hole near  
the incoming drive roll. Slide the tube in until it  
almost touches the roll. Tighten in place.  
10) Install the remaining guide tube in the front hole.  
Be certain that the proper plastic insert is used.  
Fine wire chisel point tube must have largest  
radius next to drive roll. Tighten in place.  
For GMA Gun Cables:  
11) Re-latch both quick release levers.  
Install the barbed fitting and union nut to the 5/8-18  
female inert gas fitting on the front of the Synergic 7F  
wire drive. Connect the 3/16” I.D. gas hose from the  
gun cable to the barbed fitting. When the gun is to be  
removed, this fitting can be easily detached by  
loosening the union nut.  
12) To start new electrode, straighten the first  
6” (150mm) and cut off the first 1” (25mm). Insert  
free end through the incoming tube. Press gun  
trigger & push wire into the drive roll.  
TO SET IDLE ROLL PRESSURE: See Idle Roll  
Pressure Setting, in Operating Instructions section.  
Gun and Cable Assemblies with Fast-  
Mate Connections (Requires K489-2 Fast-Mate  
Adapter Kit)  
Gun and Cable Assemblies with Standard  
L. E. Connections  
GMAW Guns  
GMAW Guns  
An expanding line of Magnum Fast-Mate™ air cooled  
and water cooled gun and cable assemblies are  
available to allow welding with solid and cored  
electrodes using the GMAW process. See the  
appropriate Magnum literature for descriptions of the  
200 to 400 ampere air cooled gun and cables that are  
available, as well as the Magnum “Super Cool” 450  
ampere water cooled gun and cable. Gun cable  
lengths range from 10 ft (3.0m) to 25 ft (7.6m) and  
feed electrode sizes .025” (0.6mm) to 5/64” (2.0mm).  
An expanding line of Magnum gun and cable  
assemblies are available to allow welding with solid  
and cored electrodes using the GMAW process. See  
the appropriate Magnum literature for descriptions of  
the 200 to 550 ampere air cooled gun and cables that  
are available. Gun cable lengths range from 10 ft  
(3.0m) to 25 ft (7.6m) and feed electrode sizes .025”  
(0.6mm) to 5/64” (2.0mm). The entire line of Magnum  
Fast-Mate gun and cable assemblies can also be  
used by installing a K489-2 Fast-Mate adapter kit.  
An expanding line of Magnum X-Tractor gun and  
cable assemblies provides fume extraction capability  
for welding with solid and cored electrodes using the  
GMAW process. See the appropriate Magnum  
literature for descriptions of the 250 to 400 ampere air  
cooled gun and cables that are available. Gun cable  
lengths range from 10 ft (3.0m) to 15 ft (4.5m) and  
feed electrode sizes .035” (0.9mm) to 1/16” (1.6mm).  
These guns require the use of either the K173-1 or  
K184# vacuum units.  
INNERSHIELD Guns  
K126 and K115 gun and cable assemblies are  
available to allow welding with Innershield electrodes.  
Gun cable lengths range from 10 ft. (3.0 m) to 15 ft.  
(4.5 m). The 350 ampere K126 with Synergic 7F will  
feed electrode sizes .062” (1.6 mm) to 5/64” (2.0 mm).  
The 450 ampere K115 with Synergic 7F will feed  
5/64” (2.0 mm) electrode.  
Three smoke extraction gun and cable assemblies  
are available, 250 ampere K309, 350 ampere K206  
and the 500 ampere K289. All gun and cable lengths  
are 15 ft. (4.5 m). Both the K206 and K309 with  
Synergic 7F will feed electrode sizes .062” (1.6 mm)  
to 5/64’ (2.0 mm). K289 with Synergic 7F will feed  
5/64” (2.0 mm) electrode. These guns require the use  
of the K184 vacuum unit for use with Synergic 7F.  
#
Requires S14927-8 connector hose and an S20591  
hose adapter.  
15 –  
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GMAW Shielding Gas  
Gun Cable Connections: Wire Feeder  
to Gun  
WARNING  
CYLINDER may explode if damaged.  
• Keep cylinder upright and chained to  
support.  
• Keep cylinder away from areas where  
it may be damaged.  
a. Check that the drive rolls, feeder guide tubes and  
gun connector guide tube are appropriate for the  
electrode size being used. If necessary, change  
them per section on Wire Feed Drive Roll and  
Guide Tube Kits.  
• Never lift welder with cylinder attached.  
b. Connect gun to gun connector making sure all pins  
and gas tube line up with appropriate holes in  
connector. Tighten gun by turning large nut on gun  
clockwise.  
• Never allow welding electrode to touch cylinder.  
• Keep cylinder away from welding or other live  
electrical circuits.  
BUILDUP OF SHIELDING GAS may  
harm health or kill.  
Shut off shielding gas supply when not  
in use.  
Synergic 7F Water Connections (for  
Water-Cooled Guns)  
The Synergic 7F models must have a K682-2 Water  
Connection Kit installed. (see section under Electrical  
Installation; Water Connection Kit.  
SEE AMERICAN NATIONAL STANDARD Z-49.1,  
“SAFETY IN WELDING AND CUTTING” PUBLISHED  
BY THE AMERICAN WELDING SOCIETY.  
------------------------------------------------------------------------  
1) Using hose clamps provided with the K682-2 Kit,  
connect appropriate water hoses to the coolant inlet  
and outlet fittings on the back of the K682-2 Kit.  
Connect the other ends of the hoses to the appropriate  
ports on the water cooling units.  
Customer must provide a cylinder of shielding gas, a  
pressure regulator, a flow control valve, and a hose  
from the flow valve to the gas inlet fitting of the  
Synergic 7F Wire Feed Unit.  
2) In the event the water line fittings on your water-cooled  
gun are incompatible with the female quick connects  
on the front of the K682-2 Kit, male quick connects are  
provided with the kit for installation on 3/16” I.D. hose  
(Customer to provide appropriate clamps). The feeder  
connectors self seal when disconnected.  
Connect a supply hose from the gas cylinder flow  
valve outlet to the 5/8-18 female inert gas fitting on the  
back panel of the Synergic 7F or, if used, on the inlet  
of the Gas Guard regulator. (See Below).  
Gas Guard Regulator - The Gas Guard Regulator is  
an optional accessory (K659-1) on these models.  
Install the 5/8-18 male outlet of the regulator to the  
5/8-18 female gas inlet on the back panel of the  
Synergic 7F. Secure fitting with flow adjuster key at  
top. Attach gas supply to 5/8-18 female inlet of  
regulator per instructions in the Gas Connections  
Section.  
95 MAR  
16 –  
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With input power disconnected from the power  
source, install the input cable per connection diagram  
M17770 in the rear of this manual and follow exactly  
the instructions on the diagram or perform the  
following:  
Electrical Installation  
WARNING  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
1) Connect the end of the control cable with the 14-  
pin cable plug to the mating receptacle on the  
power source.  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
2) Connect the electrode lead of that same cable end  
to the power source output terminal of the desired  
polarity.  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
3) Connect the 14-socket plug of the control cable to  
the mating receptacle on the bottom of the control  
box.  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
4) If not using a single continuous electrode cable  
from the Power Source to Wire Feed Unit, bolt the  
electrode lead from the power source to the  
electrode lead to the wire feed unit using the nut  
and bolt supplied with the K680 Control to Feed  
Unit cable assembly.  
Only qualified personnel should  
perform this installation.  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
Input Cable: Synergic 7F Control to Power Wave  
Synergic Type Power Sources  
Work Cable  
Connect a work lead of sufficient size and length (per  
the following table) between the proper output  
terminal on the power source and the work. Be sure  
the connection to the work makes tight metal-to-metal  
electrical contact.  
K648 - (Used with Power Wave 450) Consists of an 8-  
conductor control cable with a 14-pin plug and a 4/0 (107  
mm2) electrode cable with stud terminal. It is rated at 500  
amps, 60% duty cycle and is available in lengths of 7 ft (2  
m), 17 ft (5 m), 25 ft (7.6 m), 33 ft (10 m) and 50 ft (15 m).  
Current  
60% Duty  
Cycle  
Copper Work Cable Size, AWG *  
K649 - (Used with Power Wave 450/500) Consists of an 8-  
conductor control cable with a 14-pin control cable plug and a  
Up to 100 ft Length (30m)  
2
4/0 (107mm ) electrode cable with Twist-Mate™ connector. It  
00 (67 mm2)  
is rated at 500 amps, 60% duty cycle and is available in lengths  
of 7 ft (2 m), 17 ft (5 m), 25 ft (7.6 m), 33 ft (10 m) and 50 ft (15  
m).  
300 Amps  
400 Amps  
500 Amps  
000 (85 mm2)  
000 (85 mm2)  
K642 (Control Cable Only) - Consists of an 8  
conductor control cable with a 14-pin control cable  
plug, without electrode cable, and is available in  
lengths of 7 ft (2 m), 17 ft (5 m), 25 ft (7.6 m), 33 ft (10  
m) and 50 ft (15 m).  
* For pulse welding applications, the next larger cable  
size is recommended.  
K643 (Control Cable Extension) - Consists of an 8  
conductor control cable with 14-pin connectors on  
each end for extending the control cable between the  
power source and the control cables. Available in  
lengths of 17 ft (5 m), 25 ft (8 m), 33 ft (10 m) and 50  
ft (15 m).  
17 –  
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OPTIONAL FEATURES  
INSTALLATION  
K648 or K649 Input Cable Assembly - See Electrical  
Installation section for instructions.  
K299 50-60 Lb. Wire Reel for Customer Mounting -  
The K299 is available for use with the Synergic 7F  
Wire Feed Models. The reel for 50 or 60 pound coils is  
shipped with the needed mounting shaft, hardware,  
and insulation. Shaft mounting hole requirements are  
shown below:  
K683-1 - Dual Procedure Switch Dual Procedure  
Switch mounts to gun with appropriate bracket,  
provided, per the installation instructions included with  
the kit. 3-pin switch cord plug connects to 3-pin  
remote receptacle on the front panel of the Synergic  
7F Wire Feed Unit.  
K682-2 Water Connection Kit - Install to either side  
of Wire Feed Unit mounting bracket per instructions  
shipped with kit.  
K659-1 Gas Guard Regulator - Adjustable flow  
2
regulator with removable adjustor key for CO and  
Argon blend gases. Mounts onto Wire Feed Unit inlet  
and reduces gas waste and arc start “blow” by reducing  
surge caused by excess pressure in supply hose.( See  
Shielding Gas Connections for instructions).  
18 –  
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Mode Selection  
OPERATING INSTRUCTIONS  
Safety Precautions  
Mode Select key enables operator  
to choose mode of operation shown  
by the indicator lights. Pressing key  
causes mode lights to sequence  
(top to bottom) starting from the  
current indicated position.  
2-STEP  
STD  
WARNING  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
4-STEP  
LOCK  
SPOT  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
Top Light - Indicates 2-Step  
(Standard) Trigger Mode.  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
1. Trigger closure energizes the  
solenoid valve, then the wire feeder  
and the power source after Preflow  
time (See Timer/ Crater Section).  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
2. Releasing the trigger turns off the  
wire feeder and power source and  
then the solenoid valve after  
Postflow time.  
Only qualified personnel should  
perform this installation.  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
Middle Light - Indicates 4-Step (Lock)  
Trigger Mode. These models have selectable  
4-step with crater fill or, as shipped, 4-step  
with current interlock. (See 4-step trigger  
mode selection for method of switching).  
Duty Cycle  
The Synergic 7F models are rated at 60% duty cycle  
* for a maximum current of 600 amps.  
The 4-step modes function as follows:  
* Based on a 10 minute time period (6 minutes on, and 4 minutes off).  
1. Trigger closure energizes the power  
source and wirefeeder after the  
preflow time.  
KEYPAD SETUP AND OPERATION  
Power-Down Save  
Power to the Synergic 7F is supplied and controlled  
2. Trigger release enables 4-step lock,  
leaving the feeder and power source  
from the power source.  
The Synergic 7F  
automatically senses the loss of power when the  
power source is turned off.  
as in step 1.  
a) 4-step with current interlock will only  
lock if weld current is flowing.  
Breaking weld arc stops wire feed  
and power source output.  
Procedure settings, including mode, crater speed,  
cold feed speed , run-in speed, weld speed, timers  
and acceleration are automatically saved when power  
is removed. Arc Voltage setting is retained by the  
synergic power source. This feature does not require  
batteries and when power is restored it will  
automatically return all settings to the state they were  
in when power was removed. The power source may  
automatically overwrite any or all of these settings  
following power-up recall.  
b) 4-step with crater fill will lock without  
welding.  
3. Closing the trigger a second time  
continues welding.  
a) 4-step with current interlock  
continues welding without changing  
the settings from step 2.  
b) 4-step with crater fill continues  
welding but changes to the crater  
settings.  
4. Releasing the trigger turns off  
wirefeeder and power source and  
then gas solenoid after postflow  
time.  
Operation Keys  
Cold Feed key energizes the wire  
feeder but not the power source or  
solenoid valve. This cold feed  
speed is digitally displayed and is  
adjustable (with “Arrow keys”) only  
while pressing the Cold Feed Key.  
The last setting is held in memory  
for next Cold Inch feeding.  
Bottom Light - Indicates Spot Weld  
Mode. Trigger closure energizes the  
solenoid valve, then wire feeder and  
the power source. The spot on timer  
starts when current flows. The wire  
feeder and power source then  
solenoid valve are all turned off when  
the spot on timer times out even  
through the trigger is still closed.  
COLD FEED  
Gas Purge key energizes the  
solenoid valve but not the wire  
feeder or power source.  
GAS PURGE  
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synergically set by the power source for  
the process and weld Feed Speed being  
used.  
The power source automatically  
determines whether preset voltage or  
percent trim will be displayed. Preset  
voltage is indicated by one digit only  
to the right of the decimal point, while  
percent trim always displays two digits  
to the right of the decimal point.  
Display Control Keys  
The function select, timer/crater  
select, arrow keys and rotational  
encoders all effect the display.  
Pressing the function select key will  
cause a function to be displayed.  
Pressing the timer/crater select key  
will cause a timer or crater feed  
speed to be displayed. Whichever  
is pressed last is the one that will  
be displayed since they cannot be  
displayed simultaneously. Only  
one function or timer indicator light  
can be on at one time and therefore  
it always indicates what is being  
displayed. The arrow keys allow  
you to adjust the Run-in speed  
timer or crater speed being  
displayed. The encoder knobs allow  
rotational adjustment of weld wire  
feed speed and Arc Volts/Trim.  
VOLTS  
TRIM  
/
V
RUN-IN  
WFS  
Middle Light - Indicates Run-In  
Speed Function has been selected  
and the Run-In speed setting is being  
displayed in IPM or m/m (see section  
for English or Metric display).  
As shipped these models are setup  
for min. rated fixed Run-In speed with  
display function deactivated. They  
may be user-selected to activate or  
deactivate adjustable Run-In display.  
(See section for selection of Run-In  
and resetting fixed Run-In speed).  
Function Select key enables  
operator to choose which function  
will be displayed as indicated by the  
appropriate light. Pressing the key  
causes lights to sequence (top to  
bottom) starting from the current  
indicated position. If a timer or  
crater speed is being displayed  
when the Function Select key is  
pressed, then the indicator light of  
the last function selected before the  
timer/crater key was chosen will  
come on and become the starting  
point for the sequencing.  
Wire will be fed at the Run-In speed  
rate until arc current begins to flow.  
Once arc current flows, wire will be  
fed at the Weld speed rate.  
Decreasing Run-In speed below its  
lower limit (using the down arrow key)  
causes the display to read “- - -”. This  
indicates that the Run-In speed will be  
kept the same as the weld speed  
setting. You can reset a different Run-  
In speed simply by pressing the up  
arrow key.  
The Run-In speed will also be the  
same as the weld speed setting if  
rapid restrike welding applications are  
used, where the arc is restruck in a  
fraction of a second after the previous  
welding arc was stopped.  
Top Light - indicates Voltmeter  
Function has been selected and arc  
voltage (in volts) will be displayed  
along with electrode polarity when  
the trigger has been pressed.  
When the trigger is not pressed,  
this will serve as a preset  
voltage/trim function and the preset  
voltage/trim will be displayed. The  
top light “blinks” when arc voltage is  
being displayed and stays lit when  
preset voltage/trim is displayed.  
The last welding voltage displayed  
before the weld is terminated, will  
continue to be displayed for 5  
seconds after welding to permit  
operator monitoring.  
Bottom Light - Indicates Weld Feed  
Speed (WFS) Function has been  
selected and the weld speed setting is  
being displayed in IPM or M/M (see  
section for English or Metric speed  
display). The range of Weld Feed  
Speed is synergically set by the power  
source for the process being used,  
and is adjustable using the Wire Feed  
Speed encoder knob on the front of  
the Synergic 7F Control.  
The preset voltage/trim may be  
adjusted, using the Volts/Trim encoder  
knob. The synergic preset voltage/trim  
level may be adjusted within the range  
95 MAR  
20 –  
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Timer/Crater Select - key enables  
operator to choose crater speed, spot  
or gas timers as indicated by the  
appropriate light. Pressing key causes  
lights to sequence (left to right, top to  
bottom) starting from the current  
indicated position. Any parameter not  
available in the mode selected is  
skipped over. If a function is being  
displayed when the Timer/Crater Select  
key is pressed, then the light of the last  
parameter selected before the function  
was chosen will come on and become  
the starting point for the sequencing.  
Acceleration Selection  
PREFLOW  
POSTFLOW  
2
1
Pressing both the Gas Purge key  
and then function select key at the  
same time causes the acceleration  
setting to be displayed. The display  
will indicate “A-X” where X will be  
a number from 1 through 5 with 5  
being the fastest acceleration. This  
number can be adjusted using the  
arrow keys. To exit this function,  
press both these keys again or  
press any other key except the  
arrow keys.  
CRATER  
SPOT  
GAS PURGE  
VOLTS  
TRIM  
/
V
RUN-IN  
WFS  
Top Left Light - indicates preflow time  
is being displayed in seconds. This is  
the time the shielding gas flows before  
the wire feed and power source are  
activated.  
Selection of English or  
Metric Speed Display Units  
Pressing both the Gas Purge key  
and then timer select key at the  
same time causes the speed  
display units to toggle between IPM  
(no decimal point displayed) and  
m/m (a decimal point displayed). If  
the speed display units were IPM,  
then they will change to m/m. If the  
speed display units were m/m, then  
they will change to IPM. If the  
display is showing the volts/trim or  
one of the timers when the keys are  
pressed, the display will be  
changed to weld speed to indicate  
the selected speed display units.  
Top Right Light - indicates postflow  
time is being displayed in seconds.  
This is the time the shielding gas flows  
after the wire feed and power source  
are deactivated.  
GAS PURGE  
PREFLOW  
POSTFLOW  
2
1
CRATER  
SPOT  
Middle Light - indicates that crater feed  
speed is being displayed. Crater speed  
is only available when 4-step trigger  
with crater fill is selected. It is activated  
by Step 3 and deactivated by Step 4 of  
the 4-step sequence. (See 4-step  
trigger mode selection section).  
Bottom Light - indicates spot on time is  
being displayed in seconds.  
NOTE: if unit is not in spot mode then  
this light will be skipped over in the  
selection sequence.  
Run-In Selection  
Pressing both the Gas Purge and Cold  
Feed keys at the same time causes  
Run-In function to toggle on or off, as  
indicated by the Run-In indicator light  
turning on or remaining off in the  
function select sequence.  
Increase Arrow - key increases the  
setting of the parameter selected to be  
displayed, except Wire Feed Speed and  
Volts/Trim which are controlled by the  
encoder knobs.  
GAS PURGE  
COLD FEED  
Decrease Arrow - key decreases the  
setting of the parameter selected to be  
displayed, except Wire Feed Speed and  
Volts/Trim which are controlled by the  
encoder knobs.  
As shipped, the Run-In function is off  
with a fixed setting of min. rated speed.  
Therefore, the Run-In indicator light will  
not sequence with the function select  
key, but the fixed setting will still be  
used for actual Run-In speed.  
Arrow key adjustments use the  
“Accelerating Digit” method for setting  
changes, where holding the arrow key  
causes setting change rate to  
accelerate from slow to fast. Releasing  
arrow key resets to slow setting  
change.  
Activation of adjustable Run-In speed  
using the above dual key press, will  
permit Run-In speed to be adjusted with  
the arrow keys and the Run-In indicator  
light will return to function key  
sequence. Re-pressing the above dual  
key again removes the Run-In light from  
the function key sequence, but replaces  
the fixed Run-In speed with the  
adjusted Run-in speed setting, until  
readjusted.  
95 MAR  
21 –  
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4-Step  
Selection  
Trigger  
Mode  
WARNING  
Check to be sure the Retaining Spring has fully  
returned to the locking position and has SECURELY  
locked the Readi-Reel Cage in place. Retaining  
Spring must rest on the cage, not the welding  
electrode.  
Pressing both the Gas Purge key  
and then the Trigger mode select  
key while the 4-step mode light is on  
will toggle the 4-step trigger mode  
between:  
GAS PURGE  
2-STEP  
STD  
___________________________________________  
7) To remove Readi-Reel from Adapter, depress  
retaining spring tab with thumb while pulling the  
Readi-Reel cage from the molded adapter with  
both hands. Do not remove adapter from the  
spindle.  
4-STEP  
LOCK  
4-step with current interlock (as shipped)  
and  
4-step with crater fill.  
SPOT  
(See Mode Selection and Display  
Control Keys sections).  
To Mount 10 to 44 lb (4.5-20kg) Spool  
(12”/300mm Diameter): (Requires installation  
of 2” (51mm) spindle K162H Kit. For 8” (200mm)  
spools, a K468 spindle adapter must be used.)  
MOLDED ADAPTER  
2" O.D. SPINDLE  
RETAINING SPRING  
1) Remove the locking collar on the 2” (51mm)  
diameter spindle.  
Brake Holding Pin  
(Must engage hole  
in adapter rib)  
PIN  
2) Place the spool on the spindle making certain the  
brake holding pin enters one of the holes in the  
back side of the spool. Be certain the wire comes  
off the reel in a clockwise direction when de-reeled  
from the bottom of the coil.  
GROOVES  
Installation of K363-P Readi-Reel Adapter  
READI-REEL  
INSIDE CAGE WIRES  
THREADED LOCKING COLLAR  
3) Replace and tighten the locking collar.  
Wire Reel Loading - Readi-Reels and  
Spools (Using K162H Spindle Kit with 2”  
(51mm) spindle)  
Feeding Electrode and Brake Adjustment  
1) Turn the Readi-Reel or spool until the free end of  
the electrode is accessible.  
TO MOUNT A 30 LB (14 KG) READI-REEL  
PACKAGE USING THE MOLDED PLASTIC K363-P  
TYPE ADAPTER:  
WARNING  
When feeding with the gun trigger, the electrode and  
drive mechanism are always “HOT” to work and  
ground and could remain “HOT” several seconds after  
the gun trigger is released.  
1) Make certain that the threaded locking collar is  
tight and securely locks the adapter on the spindle  
(see figure above).  
___________________________________________  
2) While tightly holding the electrode, cut off the bent  
end and straighten the first 6” (150mm). Cut off  
the first 1” (25mm). (If the electrode is not properly  
straightened, it may not feed or may not go into  
the outgoing guide tube causing a “birdnest”.)  
2) Rotate the spindle and adapter so the retaining  
spring is at the 12 o’clock position.  
3) Position the Readi-Reel so that it will rotate in a  
clockwise direction when feeding (wire is to be de-  
reeled from bottom of the coil).  
3) Insert the free end through the incoming guide  
tube.  
4) Set one of the Readi-Reel inside cage wires on the  
slot in the retaining spring tab.  
4) Press the Cold Inch key or the gun trigger and  
push the electrode into the drive roll.  
5) Lower the Readi-Reel to depress the retaining  
spring and align the other inside cage wires with  
the grooves in the molded adapter.  
5) Feed the electrode through the gun.  
6) Adjust the brake tension with the thumbscrew on  
the spindle hub, until the reel turns freely but with  
little or no overrun when wire feeding is stopped.  
Do not overtighten.  
6) Slide cage all the way onto the adapter until the  
retaining spring “pops up” fully.  
22 –  
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4) Tighten the cover as much as possible by hand.  
Wire Reel Loading - 50-60lb (22.7-27.2kg)  
Coils (K299 Wire Reel Mounting Kit)  
DO NOT hammer on the spinner nut arms.  
5) Cut and remove only the tie wire holding the free  
end of the coil. Insert the free end into one of the  
holes in the cover and secure it by bending it back.  
Cut and remove the remaining tie wires.  
Adjustable Wire Reel Brake  
The mount for standard 50-60 lb (22.7-27.2 kg)  
electrode coils includes a two-position brake  
assembly. Generally the brake should be at the inner  
position (nearest to the wire reel shaft) for wire feed  
speeds below 400 in/min. (10m/m). It should be at the  
outer position for the faster wire speeds often used  
when feeding small diameter electrode.  
CAUTION  
Always be sure the free end of the coil is securely  
held while the tie wires are being cut and until the wire  
is feeding through the drive rolls. Failure to do this will  
result in “backlashing” of the coil, which may tangle  
the wire. A tangled coil will not feed so it must either  
be untangled or discarded.  
To adjust the brake position, remove the wire reel.  
Pull the cotter pin that holds the brake shoe to the  
arm, move the shoe and replace the cotter pin. Do  
not bend the cotter pin - it is held in place by a friction  
fit.  
___________________________________________  
6) Replace the reel on the wire feeder. Grasp the  
shaft knob, pull it out and swing it across the reel  
hub, locking the reel in place.  
To Mount a 50-60lb (22.7-27.2kg) Coil:  
Feeding Electrode  
1) To remove the wire reel from its shaft, grasp the  
spring loaded knob and pull it out. This straightens  
the knob so it seats into the shaft when released.  
Remove the reel.  
1) Turn the reel until the free end of the electrode is  
accessible. While tightly holding the electrode, cut  
off the bent end.  
2) Lay the reel flat on the floor, loosen the spinner nut  
and remove the cover plate.  
2) Straighten the first 6” (150mm) and cut off the first  
1” (25mm). Insert the free end through the incoming  
guide tube. Press the Cold Inch key or the gun trigger  
and push the electrode into the drive roll. Feed the  
electrode through the gun. (If the electrode is not  
properly straightened, it may not feed or may not go  
into the outgoing guide tube causing a “birdnest”.)  
3) Before cutting the tie wires, place the coil of  
electrode on the reel so it unwinds as the reel  
rotates clockwise.  
a) Be sure the coil is placed so the spring loaded  
arms will not interfere with the later removal of  
the coil tie wires (see illustration below).  
WARNING  
When feeding with the gun trigger, the electrode and  
drive mechanism are always “HOT” to work and  
ground and could remain “HOT” several seconds after  
the gun trigger is released.  
b) When loading .030-.045” (0.8-1.2mm)  
electrode, be certain the coil is placed on the  
reel so the spring loaded arms are at the center  
of the slots in the cardboard coil liner. This  
provides the positive compression of the coil  
sides needed for trouble-free wire feeding (see  
illustration).  
___________________________________________  
c) Put the cover plate on the reel so that the four  
arms of the cover straddle and are in line with  
the spring loaded arm of the reel proper.  
23 –  
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Idle Roll Pressure Setting  
Wire Loading of 13-14lb (6kg) Innershield  
Coils  
The idle roll pressure is set at the factory, backed out  
three turns from full pressure on 4-roll feeders. This is  
an approximate setting. For small wire sizes and  
aluminum wire up to 9 or 10 turns out may be required  
to minimize “birdnesting”. The optimum idle roll  
pressure varies with type of wire, surface condition,  
lubrication, and hardness. The optimum idle roll  
setting can be determined as follows:  
Requires use of K162H Spindle Kit and K435 14 Lb.  
Coil Adapter.  
1) Release the incoming idle roll pressure arm, then  
press end of gun against a solid object that is  
electrically isolated from the welder output and  
press the gun trigger for several seconds.  
2) If the wire “birdnests”, jams, or breaks at the drive  
roll, the idle roll pressure is too great. Back the  
pressure setting out 1/2 turn, run new wire through  
gun, and repeat above steps.  
3) If the only result is drive roll slippage, disengage  
the gun locking nut, and pull the gun cable forward  
about 6” (150mm). There should be a slight  
waviness in the exposed wire. If there is no  
waviness, the pressure is too low. Increase the  
pressure setting 1/4 turn, reconnect the gun,  
tighten the locking nut, and repeat the above  
steps.  
4) After the outgoing pressure is set, determine how  
many turns away from full pressure the setting is.  
Set both idle roll tensions to this setting. Engage  
both idle rolls before welding. In most applications,  
best wire feeding will occur when both idle roll  
pressures are set the same.  
Gas Guard Regulator Setting (Optional  
K659-1)  
1) With the gas supply shut off, the Gas Guard  
regulator flow adjusting key should be set to  
maximum (full clockwise) which is rated to be 60  
SCFH (28 lts/ min).  
2) Adjust gas supply flow rate for a level higher than  
will be required, then adjust Gas Guard flow  
adjusting key counterclockwise to the desired gas  
flow rate.  
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13) If necessary to optimize arc starting, adjust wire  
speed acceleration, and/or Run-In speed. (See the  
appropriate sections for adjusting procedures).  
Making a Weld  
1) Use only Power Wave model “synergic” power  
sources.  
Wire Reel Changing  
2) Properly connect the electrode and work leads for  
the correct electrode polarity.  
At the end of a coil, remove the last of the old  
electrode coil from the conductor cable by either  
pulling it out at the nozzle end of the gun or by using  
the following procedure:  
3) Use Mode Selection key to set desired operating  
mode. (Refer to Mode Selection section.)  
4) Use Function Select and Arrow keys to set desired  
Run-in and encoder knob to set Weld Feed  
Speeds. (Set for each procedure if using optional  
Dual Procedure Switch).  
1) Cut the end of the electrode off at the gun end. Do  
not break it off by hand because this puts a slight  
bend in the wire making it difficult to pull it back  
through the nozzle.  
5) Adjust the voltage or percent trim, if desired, (for  
each procedure if using the optional Dual  
Procedure Switch) using the encoder knob in  
“Volts/Trim” function (refer to Volts/Trim section).  
The final setting can be adjusted according to the  
desired arc voltage while welding.  
2) Disconnect the gun cable from the gun connector  
on the Synergic 7F Wire Feed Unit and lay the gun  
and cable out straight.  
3) Using pliers to grip the wire, pull it out of the cable  
from the connector end.  
6) Use Timer/Crater Select and Arrow keys to set  
desired timers, or crater speed if 4-step trigger with  
Crater fill has been selected. (Refer to the  
Timer/Crater section).  
4) After the electrode has been removed, reconnect  
the gun cable to the Synergic 7F.  
Load a new reel of electrode per the instructions in  
the Wire Reel Loading sections.  
7) Feed the electrode through the gun and cable and  
then cut the electrode within approximately  
.38” (9.5mm) of the end of the contact tip for solid  
wire, and within approximately .75” (19mm) of the  
extension guide for cored wire.  
Wire Feed Overload Protection  
The Synergic 7F has solid-state overload protection of  
the wire drive motor. If the wire drive motor becomes  
overloaded for an extended period of time, the  
protection circuitry turns off the power source, wire  
feed and solenoid and then displays H30. This  
indicates the wire drive motor is overloaded and the  
number indicates the time remaining in seconds  
before the unit will automatically reset. The number  
continues to decrement every second until it  
reaches 0. At that time, the unit resets automatically  
and the previous display will return indicating the unit  
is ready to operate again. Overloads can result from  
improper tip size, liner, drive rolls, or guide tubes,  
obstructions or bends in the gun cable, feeding wire  
that is larger than the rated capacity of the feeder or  
any other factors that would impede normal wire  
feeding. (See section on Avoiding Wire Feeder  
Problems.)  
8) Connect work cable to metal to be welded. Work  
cable must make good electrical contact to the  
work. The work must also be grounded as stated  
in “Arc Welding Safety Precautions”.  
WARNING  
When using an Open Arc process,  
it is necessary to use correct eye,  
head, and body protection  
____________________________________  
9) If used, be sure shielding gas valve is turned on.  
10) Position electrode over joint. End of electrode  
may be lightly touching the work.  
11) Lower welding helmet, close gun trigger and start  
welding. Hold the gun so the contact tip to work  
distance gives the correct electrical stickout as  
required for the procedure being used.  
12) To stop welding, release the gun trigger and then  
pull the gun away from the work after the arc  
goes out and Postflow time, if used, is over.  
25 –  
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Explanation of Prompting and  
Error Messages  
Display  
Prompt or Error  
HI  
---  
Indicates arc voltage is above 80V DC.  
Indicates selected Run-In speed will be the  
same as the weld speed. To enter a different  
Run-In speed simply press the increase arrow  
key with Run-In selected.  
HXX  
Indicates wire feed overload. XX indicates  
time remaining in seconds before unit resets  
automatically. See sections on Routine  
Maintenance, Periodic Maintenance, and  
Troubleshooting Guide Problem 17.  
EP  
Indicates problem in EPROM assembly. See  
Troubleshooting Guide Problem 17.  
uP  
Indicates problem in microprocessor RAM.  
See Troubleshooting Guide Problem 17.  
EXX  
Indicates various system problems. XX will  
be a number from 01 to 10. Turn off power to  
feeder. Wait 5 seconds. Turn power back on.  
If error persists, see section on  
Troubleshooting Guide Problem 17. If error  
does not reoccur, be sure to check all wire  
feed speed, acceleration, and timer settings  
before you proceed.  
Er  
EEPROM error. Usually occurs at power-up.  
Indicates one or more of the recalled settings  
is out of acceptable limits. Press any key to  
return to normal operation. Be sure to check  
all wire feed speed, acceleration, and timer  
settings before you proceed.  
26 –  
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MAINTENANCE  
Wire Reel Mounting - 50 (22.7kg) and  
60lb (27.2kg) Coils  
Safety Precautions  
To prolong the life of the reel shaft, periodically coat it  
with a thin layer of grease.  
WARNING  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
No maintenance of the two-position adjustable brake  
is needed. If the brake shoe wears through to the  
metal, replace the brake assembly.  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
Wire Reel Mounting - Readi-Reels and  
10 through 30lb (4.5-14kg) Spools  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
No routine maintenance required. Do not lubricate 2”  
(51mm) spindle.  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
Avoiding Wire Feeding Problems  
Only qualified personnel should do  
maintenance or troubleshooting work.  
Wire feeding problems can be avoided by observing  
the following gun handling procedures:  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
a) Do not kink or pull cable around sharp corners.  
Routine Maintenance  
b) Keep the electrode cable as straight as possible  
when welding or loading electrode through cable.  
Drive Rolls and Guide Tubes  
c) Do not allow dolly wheels or trucks to run over  
cables.  
After feeding every coil of wire, inspect the drive roll  
section. Clean it as necessary. Do not use a solvent  
for cleaning the idle roll because it may wash the  
lubricant out of the bearing. The driver roll and guide  
tubes are stamped with the wire sizes they will feed.  
If a wire size other than that stamped on the roll(s) is  
to be used, the roll(s) and guide tubes must be  
changed.  
d) Keep cable clean by following maintenance  
instructions.  
e) Use only clean, rust-free electrode. The Lincoln  
electrodes have proper surface lubrication.  
f) Replace contact tip when the arc starts to become  
unstable or the contact tip end is fused or  
deformed.  
The drive rolls for .035” (0.9mm) through .052”  
(1.3mm) cored electrode and 1/16” (1.6mm) through  
3/32” (2.4mm) electrode have a double set of teeth so  
they can be reversed for additional life. Drive rolls for  
.023" (0.6 mm) through .052" (1.3 mm) solid  
electrodes and aluminum sizes have no teeth, but use  
two grooves so they also can be reversed for  
additional life.  
g) Do not use excessive wire spindle brake settings.  
Periodic Maintenance  
Wire Drive Motor and Gearbox  
See section on Wire Feed Drive Roll and Guide Tube  
Kits for roll changing instructions.  
Every year inspect the gearbox and coat the gear  
teeth with a moly-disulfide filled grease. Do not use  
graphite grease.  
Every six months check the motor brushes. Replace  
them if they are less than 1/4” long.  
Gun and Cable Maintenance  
See appropriate Operator’s Manual.  
27 –  
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TROUBLESHOOTING GUIDE  
WARNING  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts such  
as output terminals or internal wiring.  
• When inching with gun trigger, electrode  
and drive mechanism are “hot” to work  
and ground.  
• Turn OFF welding power source before  
installing or changing drive roll and/or  
guide tubes.  
• Welding power source must be connected  
to system ground per the National  
Electrical Code or any applicable local  
codes.  
Only qualified personnel should do  
maintenance or troubleshooting work.  
Observe all additional Safety Guidelines detailed  
throughout this manual.  
WARNING  
This Troubleshooting Guide is designed to be used by the machine Owner/Operator. Unauthorized repairs  
performed on this equipment may result in danger to the technician and machine operator and will invalidate your  
factory warranty. For your safety, please observe all safety notes and precautions detailed in the Safety Section of  
this manual to avoid electrical shock or danger while troubleshooting this equipment.  
___________________________________________________________________________________________  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,  
contact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
28 –  
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PROBLEMS  
WHAT TO DO  
PROBLEM  
POSSIBLE CAUSE  
a. Inspect gun cable and replace if  
necessary.  
1. Rough wire feeding or wire not  
feeding but drive rolls turning.  
a. Gun cable kinked and/or twisted.  
b. Remove wire from gun and cable  
feed in new wire. Note any  
obstructions in gun and cable.  
Replace gun and cable if  
necessary.  
b. Wire jammed in gun and cable.  
c. See Wire Feed Drive Roll and  
Guide Tubs Kits section for  
c. Incorrect position of drive rolls  
with grooves.  
proper installation of drive roll.  
d. Remove, clean, install and  
tighten.  
d. Drive rolls loose.  
e. Clean cable or replace liner.  
f. Replace.  
e. Gun cable dirty.  
f. Worn drive roll.  
g. Replace.  
g. Electrode rusty and/or dirty.  
h. Worn nozzle or cable liner.  
h. Replace.  
i. Replace contact tip.  
i. Partially flashed or melted  
contact tip.  
j. Set idle roll pressure per section  
on Idle Roll Pressure Setting.  
j. Incorrect idle roll pressure.  
k. Install proper equipment.  
k. Improper liner, tip or guide tube.  
a. Replace tip - remove any spatter  
on end of tip.  
2. Variable or “hunting” arc.  
a. Wrong size, worn and/or melted  
contact tip.  
b. Inspect - Repair or replace as  
necessary.  
b. Worn work cable or poor work  
connection.  
c. Be sure electrode lead is tight in  
wire feeder contact block, gun  
nozzle and gun tip tight.  
c. Loose electrode connections.  
d. Check connection at output studs  
for polarity required by welding  
process.  
d. Wrong polarity.  
e. Make sure control cable connections are  
tight. Check for consistent WFS. Make sure  
parameters on Power Source display, such  
as WFS, match those on wire feeder  
e. Problem with serial  
communications in control cable.  
display, if not, try changing Synergic 7F  
control board. If problem persists refer to  
Power Source trouble shooting information.  
29 –  
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PROBLEMS  
WHAT TO DO  
PROBLEM  
POSSIBLE CAUSE  
a. See “Gas Metal Arc Welding  
Guide” (GS-100).  
3. Poor arc striking with sticking or  
“blast-offs”, weld porosity,  
narrow and ropy looking bead,  
or electrode stubbing into plate  
while welding.  
a. Improper procedures or  
techniques.  
b. Clean gas nozzle. Make certain  
that gas diffuser is not empty or  
turned off. Make certain gas flow  
rate is proper.  
b. Improper gas shielding.  
Remove gun liner and check  
rubber seal for any sign of  
deterioration or damage. Be sure  
set screw in brass connector is in  
place and tightened against the  
liner bushing.  
a. Do not exceed current and duty  
cycle rating of gun.  
4. Tip seizes in diffuser.  
a. Tip overheating due to prolonged  
or excessive high current and/or  
duty cycle welding.  
A light application of high  
temperature antiseize lubricant  
(such as Lincoln E2607 Graphite  
Grease) may be applied to tip  
threads.  
a. Correct problems causing motor  
overload.  
5. Unit shuts off while welding and  
“HXX” appears on display.  
a. See Problem 1.  
b. Replace.  
b. Defective wire feed motor or  
gearbox.  
a. Remove Wire Feed Unit to  
Control Box Cable and Check A  
to A and B to B for continuity. If  
there is no continuity in either or  
both cases, replace cable.  
6. Drive roll does not turn although a. Defective Wire Feed Unit to  
arc voltage is present and  
solenoid is on.  
Control box cable or harnessing.  
Otherwise, check Harnessing  
from A and B of MS connector on  
control box to control board and  
A and B at Wire Feed Unit MS  
connector to Motor leads for  
continuity. If harnessing is O.K.  
proceed to b.  
b. Set Run-In speed to maximum.  
Disconnect wire drive plug P5  
from PC board. Measure voltage  
across pin 1(+) of J5 and pin 2 (-)  
of J5 on PC board with trigger  
closed. If voltage is > 24V DC,  
then replace motor assembly. If  
< 24V DC, replace Control PC  
board (see Procedure for  
b. Defective wire feed motor or  
control PC board.  
Replacing PC Boards).  
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PROBLEMS  
WHAT TO DO  
PROBLEM  
POSSIBLE CAUSE  
a. Remove Control Box to Wire Feed  
Unit Cable and Check F to F, G to G  
and H to H for continuity. If any of the  
continuity tests fail, replace cable.  
Otherwise check related harnesses  
for continuity (Refer to Wiring  
7. No control of wire feed.  
a. Defective Wire Feed Unit to  
Control box cable or harnessing.  
Diagram). If continuity checks O.K.  
on harnessing, proceed to b.  
b. Measure voltage across pin 2 (+) of  
J3 and pin 3 (-) of J3 on PC board  
with motor running. If voltage is 1.5-  
3.5V then replace control PC board  
(see Procedure for Replacing PC  
Boards). If not, then replace  
b. Defective wire feed motor tach or  
control PC Board.  
tachometer.  
c. See 2e.  
c. Problem with serial  
communications in input control  
cable.  
a. Remove gun. Check continuity  
between trigger pins with trigger  
closed. If no continuity repair or  
replace gun.  
8. No wire feed, solenoid, or arc  
voltage. LED display indicated  
Synergic 7F has input power.  
a. Faulty gun or gun trigger switch.  
b. Replace gun. Remove plug from J1  
on control board. Check that there is  
continuity between plug pins 2 and 8  
when trigger is closed and no  
b. Defective Control Box to Wire  
Feed Unit Cable or harness  
wiring & connections.  
continuity when trigger is open. If the  
continuity tests pass proceed to c. If  
not, check I to I and J to J in cable. If  
this continuity test fails, replace  
cable. Otherwise check wiring  
harnesses and proceed to c. if no  
harness problem is encountered.  
c. Remove gun. Check voltage across  
trigger sockets on gun connector.  
c. Defective control PC board or  
gun connector.  
If voltage is > 11V DC, then gun is  
defective.  
If voltage is < 11V DC, then check  
the voltage across pin 2 (+) and pin 8  
(-) of connector J1 on control PC  
board.  
If the voltage is still < 11V DC, then  
replace control PC board, otherwise,  
replace gun connector. (See  
Procedure for Replacing PC boards.)  
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PROBLEMS  
POSSIBLE CAUSE  
WHAT TO DO  
PROBLEM  
a. Disconnect input cable from  
power source and place a jumper  
across sockets C & D of 14-  
socket receptacle at power  
source. If no arc voltage is  
present then power source is  
defective.  
9. Wire feed motor runs and  
solenoid turns on but no arc  
voltage is present.  
a. Power source is defective.  
b. Disconnect input cable from  
power source and check  
b. Input cable is defective.  
continuity between socket C of  
8-socket plug and pin C of 14-pin  
plug of the input cable and socket  
D of 8-socket plug and pin D of  
14-pin plug of the input cable.  
Replace cable if no continuity.  
c. Replace Control PC board. (See  
Procedure for Replacing PC  
boards).  
c. Control PC Board is defective.  
a. Set Run-In and weld speeds to  
desired settings.  
10. Speed does not change when  
weld current flows.  
a. Run-In and weld speeds are set  
to the same value or Run-In is  
set to - - -.  
b. Check input control cable per  
problem 2e. If this is O.K. then  
replace Control PC board. (See  
Procedure for Replacing PC  
boards.)  
b. Power source may be defective  
or there may be a control cable  
problem with the serial  
communications - see problem  
2e.  
a. Check continuity from brass  
block on wire feed unit to pin-F  
on input connector at control box.  
Otherwise, replace Control PC  
board. (See Procedure for  
Replacing PC Boards.)  
11. Voltmeter does not function or  
read properly when arc voltage  
is present.  
a. See problem 2e, also 67  
electrode sensing lead or  
connections may be intermittent.  
a. Refer to Operations Section of  
this manual.  
12. Arrow keys do not change  
WFS or Volts/Trim.  
a. This is normal as only WFS and  
Volts/Trim knobs will adjust these  
settings.  
a. Check continuity between  
sockets 5 and 1 of keypad  
connector when purge key is  
closed. If not, then replace  
keypad, otherwise replace  
Display PC board. (See  
Procedure for Replacing PC  
boards.)  
13. Purge key does not turn on  
solenoid but trigger closure  
does.  
a. Defective keypad or Display PC  
Board is defective.  
32 –  
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PROBLEMS  
WHAT TO DO  
PROBLEM  
POSSIBLE CAUSE  
a. Check continuity between sockets 4  
and 1 of keypad connector when  
Cold Feed key is closed. If not,  
then replace keypad, otherwise,  
replace Display PC board. (See  
Procedure for Replacing PC  
boards).  
14. Cold Feed key does not turn  
on wire feed motor but trigger  
closure does.  
a. Defective keypad or Display PC  
board is defective.  
a. Ring out keypad. Replace if  
defective. If not, then replace  
Display PC board. (See Procedure  
for Replacing PC boards.)  
15. Display and/or indicator lights  
do not change when the arrow  
or select keys are pressed.  
\a. Defective keypad or Display PC  
board.  
a. Press the function key to light the  
LED next to the display function that  
corresponds with the knob to be  
adjusted.  
16. Display does not change when a. Make sure that the function  
WFS and/or Volts/Trim knobs  
are turned.  
select key has been pressed to  
light the LED corresponding to  
the Volts/Trim or WFS display  
depending on which knob you  
are attempting to adjust.  
b. Check harness connections to  
encoder and control boards and  
continuity between corresponding  
harness leads in P2 and P17.  
(Refer to wiring diagram).  
b. Broken harness wire(s) or  
harness disconnected from  
encoder boards(s) or control  
board.  
c. If b. is not the problem and neither  
the WFS or Volts/Trim knobs are  
properly adjusting then replace the  
control board. If one of the two  
c. Defective Encoder boards and/or  
control board.  
knobs are properly adjusting, plug  
the P17 harness from the working  
board into the nonfunctional board.  
If the previously nonfunctional board  
is now working, replace the control  
board. Otherwise replace the  
nonfunctional encoder board. (See  
procedure for replacing PC boards).  
a. Turn ON power source.  
17. Display is blank.  
a. Power source is OFF.  
b. Check input cable and feeder unit  
for short in 41 and 42 circuit. Check  
for shorted motor. Replace fuse or  
reset circuit breaker.  
b. Feeder supply fuse or circuit  
breaker at power source is blown  
or tripped.  
c. Observe LED mounted on Control  
PC board. It should blink on and off  
at a controlled rate of 1 second ON  
and 1 second OFF. If so, then  
replace Display PC board. If not,  
replace Control PC board. (See  
Procedure for Replacing PC  
boards.)  
c. Display or Control PC board is  
bad.  
33 –  
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PROBLEMS  
WHAT TO DO  
PROBLEM  
POSSIBLE CAUSE  
a. Set dual procedure switch at control  
box to the gun position. Refer to  
operating instructions.  
18. Dual Procedure is not  
functioning when using the  
remote dual procedure switch.  
a. Gun has not been selected at the  
control box.  
b. Remove switch. Check continuity  
between switch pins with switch closed  
and no continuity with switch open. If it  
fails a continuity test, repair or replace  
switch.  
b. Faulty Remote Dual Procedure  
Switch.  
c. Refer to Problem 19, Local Dual  
Procedure Switch.  
c. Faulty Local Dual Procedure  
Switch.  
d. With switch installed disconnect J2 plug  
from control board. Check continuity  
between P2 pins 4 and 6 with the  
remote switch closed, and no continuity  
with the remote switch open. If a  
d. Defective Control Box to Wire  
Feed Unit cable, associated  
harness wiring, or control board.  
continuity test fails, replace or repair the  
damaged harness or cable. Otherwise  
replace control board. (See procedure  
for replacing PC boards).  
e. Make sure input cable connections are  
tight. Make sure parameters on Power  
Source display, such as WFS match  
those on wire feeder display, if not, try  
changing Synergic 7F control board. If  
problem persists, refer to Power Source  
Troubleshooting information. (See  
e. Problems with serial  
communications.  
procedure for replacing PC boards).  
a. Disconnect harness plug from J2 on the  
control board. Check that there is  
continuity between plug pins 7 and 11  
when local DPS is in position “A” but not  
when in “Gun” or “B”. Now check that  
there is continuity between plug pins 11  
and 12 when local DPS is in position “B”  
but not when in “Gun” or “A”. If any of  
these continuity tests fail repair or replace  
switch or switch harness to correct the  
problem, Otherwise, replace control  
board. (See procedure for replacing PC  
boards).  
19. Dual Procedure is not  
functioning when using the  
local dual procedure switch.  
a. Faulty Local Dual Procedure  
Switch or control board.  
b. Make sure input cable connections are  
tight. Make sure parameters on Power  
Source display, such as WFS match those  
on wire feeder display, if not, try changing  
Synergic 7F control board. If problem  
persists, refer to Power Source  
e. Problems with serial  
communications.  
Troubleshooting information. (See  
procedure for replacing PC boards).  
34 –  
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PROBLEMS  
POSSIBLE CAUSE  
WHAT TO DO  
PROBLEM  
a. Remove control board plug from  
J5. Check that if you have a high  
speed Wire Feed Unit that you have  
continuity between plug P5 pins 4  
and 6. Likewise if you have a  
20. Wire feed speed is consistent  
and adjustable, but operates at the or control board.  
wrong speed.  
a.Defective gearbox ratio sensing  
standard speed Wire Feed Unit you  
should not have continuity between  
P5 pins 4 and 6. If the continuity test  
fails, refer to wiring diagram and  
correct the problem in the J13 to J5  
jumper sensing system. Otherwise  
replace control board.  
21. Display shows any of the  
following:  
a. Normal operation. Voltmeter only  
reads 0-80V DC.  
HI  
a. Voltmeter function is selected  
and arc voltage is > 80V DC.  
a. Run-In speed is now = weld  
speed. To re-enable Run-In speed  
simply press the increase arrow key.  
- - -  
a. Run-In speed is selected but is  
disabled.  
a. XX indicates time in seconds  
HXX  
Er  
a. See problem 5 or see section on  
Safety Precautions.  
before unit will automatically reset.  
a. Parameter recalled at power-up  
was out of range. Press any key  
to reset. Check all settings before  
proceeding to weld. If this  
a. EEPROM error.  
condition persists then replace  
control PC board. (See Procedure  
for Replacing PC boards.)  
a. Turn off power to feeder. Wait 5  
seconds. Turn power back on. If  
EXX is displayed again then  
replace control PC board. (See  
Procedure for Replacing PC  
boards.)  
EXX  
EP  
a. Where XX is a number from  
1-10. System error.  
a. Turn off power to feeder. Wait  
5
a. EPROM checksum error.  
seconds. Turn power back on. If  
EP is displayed again then replace  
EPROM assembly. If problem still  
persists then replace Control PC  
board . (See Procedure for  
Replacing PC boards.)  
a. Turn off power to feeder. Wait 5  
seconds. Turn power back on. If  
uP is displayed again, then  
replace control PC board. (See  
Procedure for Replacing PC  
boards.)  
uP  
a. Microprocessor RAM error.  
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Gun Cable Connector Requirements to Permit  
Proper Connection to Wire Feed Units  
Procedure for Replacing PC Boards  
WARNING  
ELECTRIC SHOCK can kill.  
• Have a qualified individual install and  
service this equipment.  
• Turn the power source input power off  
at the disconnect switch before  
working on this equipment.  
• Do not touch electrically hot parts.  
---------------------------------------------------------------------  
Before replacing a PC board which is suspected of  
being defective, visually inspect the PC board in  
question for any electrical or mechanical damage to  
any of its components and conductors on the back of  
the board.  
Connector for 1/16 - 5/64” (1.6 - 2.0 mm) Wire  
a. If there is no visible damage to the PC board,  
install a new one and see if this remedies the  
problem. If the problem is remedied, reinstall the  
old PC board to see if the problem still exists. If it  
does no longer exist with old PC board:  
Connector for .023 - .052” (19.0 / 18.9 mm) Wire  
(For all other dimensions, See Diagram above).  
1. Check the PC board harness connector pins for  
corrosion, contamination, or looseness.  
NOTE: Connector part with .749/.747 (19.0/18,9 mm)  
diameter should be made from brass if it is to be part  
of the welding current carrying circuit.  
2. Check leads in the plug harness for loose or  
intermittent connection.  
“A” Diameter Hole  
to be Concentric to  
Wire Size  
in. (mm)  
.749/.747 (19.0/18.9 mm)  
Diameter Within .008 (.20) F.I.M.  
b. If PC board is visibly damaged electrically, before  
possibly subjecting the new PC board to the same  
cause of failure, check for possible shorts, opens,  
or grounds caused by:  
.068- 5/64  
(1.7-2.0)  
.125 [1/8 (3.2 mm) Drill]  
1. Frayed or pinched lead insulation.  
1/16 (1.6)  
.078 [5/64 (2.0 mm) Drill]  
.062 [1/16 (1.6 mm) Drill]  
.055 [(1.4 mm) #54 Drill]  
2. Poor lead termination, such as a poor contact  
or a short to adjacent connection or surface.  
.045 & .052 (1.1 & 1.3)  
.023-.035 (0.6-0.9)  
3. Shorted or open motor leads, or other external  
leads.  
All dimensions in inches and (millimeters)  
Switch Requirements  
4. Foreign matter or interference behind the PC  
boards.  
1/2 Amp AC 24 Volts - Inductive  
1/2 Amp DC 24 Volts - Inductive  
c. If PC board is visibly damaged mechanically,  
inspect for cause, then remedy before installing a  
replacement PC board.  
If there is damage to the PC board or if replacing  
PC board corrects problem, return it to the local  
Lincoln Electric Field Service Shop.  
36 –  
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5 0 0  
5 1 2 A  
*
*
5 5 3  
5 5 2  
5 5 1  
5 5 4  
*
*
*
*
5 1 2  
5 2 2  
5 3 1  
5 3 0  
*
5 3 9  
5 4 1  
E N C O D E R P C B O A R D  
E N C O D E R P C B O R D  
* *  
* *  
5 0 0  
J 1 7  
J 1 7  
5 5 3  
5 5 1  
*
*
5 5 4  
5 1 2 A  
5 5 2  
T A C H  
5 1 9  
5 2 0  
5 2 4  
5 2 5  
*
5 2 1  
5 2 0  
5 1 5  
5 1 9  
5 1 8  
5 1 7  
5 1 6  
W
2
*
4
5 0 0 M  
8 1  
8 2  
W
5 4 2  
37 –  
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INPUT CONNECTION DIAGRAM  
38 –  
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CONTROL BOX DIMENSION PRINT  
39 –  
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WIRE FEED UNIT DIMENSION PRINT  
GUN CABLE FITTING  
SWING ARM  
CLOSED  
C
L
OF WIRE  
2.90  
C
L
OF WIRE  
7.00  
11.25  
7.69  
6.75  
4.67  
6.67  
1.00  
6.25  
8.06  
7.16  
7.50  
C
L
OF WIRE  
3.36  
.281  
(10 HOLES FOR  
MOUNTING WIRE FEED UNIT)  
1.00  
6.21  
1.31  
WIRE FEED  
DIRECTION  
OUTLET  
GAS FITTING  
REMOTE  
CONNECTOR  
INLET  
GAS FITTING  
3.18  
TRIGGER  
CONNECTOR  
1.44 TYP.  
INPUT  
CONNECTOR  
1.72  
CLEARANCE ENVELOPE OF QUICK RELEASE ARMS  
TOP VIEW  
.25  
A
.87  
.25  
L9777  
.81  
40 –  
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Now Available...12th Edition  
New Lessons in Arc Welding  
The Procedure Handbook of Arc Welding  
Lessons, simply written, cover manipulatory techniques;  
machine and electrode characteristics; related subjects,  
such as distortion; and supplemental information on arc  
welding applications, speeds and costs. Practice materials,  
exercises, questions and answers are suggested for each  
lesson.  
With over 500,000 copies of previous editions published  
since 1933, the Procedure Handbook is considered by many to  
be the “Bible” of the arc welding industry.  
This printing will go fast so don’t delay. Place your  
order now using the coupon below.  
528 pages, well illustrated, 6” x 9” size, bound in simulated,  
gold embossed leather.  
The hardbound book contains over 750 pages of welding  
information, techniques and procedures. Much of this material  
has never been included in any other book.  
$5.00 postage paid U.S.A. Mainland  
A must for all welders, supervisors, engineers and  
designers. Many welding instructors will want to use the book  
as a reference for all students by taking advantage of the low  
quantity discount prices which include shipping by  
4th class parcel post.  
$15.00 postage paid U.S.A. Mainland  
Need Welding Training?  
The Lincoln Electric Company operates the oldest and  
most respected Arc Welding School in the United States at its  
corporate headquarters in Cleveland, Ohio. Over 100,000  
students have graduated. Tuition is low and the training is  
“hands on”  
How To Read Shop Drawings  
The book contains the latest information and application  
data on the American Welding Society Standard Welding  
Symbols. Detailed discussion tells how engineers and  
draftsmen use the “short-cut” language of symbols to pass  
on assembly and welding information to shop personnel.  
For details write:  
Lincoln Welding School  
22801 St. Clair Ave.  
Cleveland, Ohio 44117-1199.  
Practical exercises and examples develop the reader’s ability  
to visualize mechanically drawn objects as they will appear  
in their assembled form.  
and ask for bulletin ED-80 or call 216-383-2259 and ask for the  
Welding School Registrar.  
187 pages with more than 100 illustrations. Size 8-1/2” x 11”  
Durable, cloth-covered board binding.  
Lincoln Welding School  
BASIC COURSE  
5 weeks of fundamentals  
$700.00  
$4.50 postage paid U.S.A. Mainland  
There is a 10% discount on all orders of $50.00 or more for shipment at one time to one location.  
Orders of $50 or less before discount or orders outside of North America must be prepaid with charge, check or money order in U.S. Funds Only.  
Prices include shipment by 4thClass Book Rate for U.S.A. Mainland Only. Please allow up to 4 weeks for delivery.  
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For North America invoiced orders over $50.00 & credit card orders, if UPS is requested, it will be invoiced or charged to you at cost.  
Outside U.S.A. Mainland order must be prepaid in U.S. Funds. Please add $2.00 per book for surface mail or $15.00 per book for air parcel post shipment.  
METHOD OF PAYMENT: (Sorry, No C.O.D. Orders)  
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Order from: BOOK DIVISION, The Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199  
Telephone: 216-383-2211 or, for fastest service, FAX this completed form to: 216-361-5901.  
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New Lessons in Arc Welding  
Procedure Handbook “Twelfth Edition”  
How to Read Shop Drawings  
Incentive Management  
A New Approach to Industrial Economics $5.00  
The American Century of John C. Lincoln $5.00  
Seminar Information  
(ED-45)  
Educational Video Information  
(ED-93)  
NA  
AC  
James F. Lincoln Arc Welding  
Foundation Book Information  
Welding Preheat Calculator  
Pipe Welding Charts  
$3.00  
$4.50  
WC-8  
ED-89  
(JFLF-515)  
SUB TOTAL  
Additional Shipping Costs if any  
TOTAL COST  
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Do not touch electrically live parts or  
electrode with skin or wet clothing.  
Insulate yourself from work and  
ground.  
Keep flammable materials away.  
Wear eye, ear and body protection.  
WARNING  
Spanish  
No toque las partes o los electrodos Mantenga el material combustible  
Protéjase los ojos, los oídos y el  
bajo carga con la piel o ropa  
mojada.  
Aislese del trabajo y de la tierra.  
fuera del área de trabajo.  
cuerpo.  
AVISO DE  
PRECAUCION  
French  
Ne laissez ni la peau ni des  
Gardez à l’écart de tout matériel  
inflammable.  
Protégez vos yeux, vos oreilles et  
votre corps.  
vêtements mouillés entrer en contact  
avec des pièces sous tension.  
ATTENTION  
Isolez-vous du travail et de la terre.  
German  
Berühren Sie keine stromführenden  
Teile oder Elektroden mit Ihrem  
Körper oder feuchter Kleidung!  
Isolieren Sie sich von den  
Entfernen Sie brennbarres Material! Tragen Sie Augen-, Ohren- und Kör-  
perschutz!  
WARNUNG  
Elektroden und dem Erdboden!  
Portuguese  
Não toque partes elétricas e  
electrodos com a pele ou roupa  
molhada.  
Mantenha inflamáveis bem  
guardados.  
Use proteção para a vista, ouvido e  
corpo.  
ATENÇÃO  
Isole-se da peça e terra.  
Japanese  
Chinese  
Korean  
Arabic  
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE  
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.  
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS  
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.  
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A  
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.  
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES  
HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.  
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Keep your head out of fumes.  
Use ventilation or exhaust to  
remove fumes from breathing zone.  
Turn power off before servicing.  
Do not operate with panel open or  
guards off.  
WARNING  
Spanish  
Los humos fuera de la zona de  
respiración.  
Mantenga la cabeza fuera de los  
humos. Utilice ventilación o  
aspiración para gases.  
Desconectar el cable de  
alimentación de poder de la  
máquina antes de iniciar cualquier  
servicio.  
No operar con panel abierto o  
guardas quitadas.  
AVISO DE  
PRECAUCION  
French  
N’opérez pas avec les panneaux  
ouverts ou avec les dispositifs de  
protection enlevés.  
Gardez la tête à l’écart des fumées.  
Utilisez un ventilateur ou un  
aspirateur pour ôter les fumées des  
zones de travail.  
Débranchez le courant avant  
l’entretien.  
ATTENTION  
German  
Anlage nie ohne Schutzgehäuse  
oder Innenschutzverkleidung in  
Betrieb setzen!  
Vermeiden Sie das Einatmen von  
Schweibrauch!  
Sorgen Sie für gute Be- und  
Entlüftung des Arbeitsplatzes!  
Strom vor Wartungsarbeiten  
abschalten! (Netzstrom völlig  
öffnen; Maschine anhalten!)  
WARNUNG  
Portuguese  
Mantenha-se afastado das partes  
moventes.  
Não opere com os paineis abertos  
ou guardas removidas.  
Mantenha seu rosto da fumaça.  
Use ventilação e exhaustão para  
remover fumo da zona respiratória.  
Não opere com as tampas removidas.  
Desligue a corrente antes de fazer  
serviço.  
ATENÇÃO  
Japanese  
Chinese  
Korean  
Arabic  
LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS  
PRÁTICAS DE SEGURANÇA DO EMPREGADOR.  
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• World's Leader in Welding and Cutting Products •  
• Sales and Service through Subsidiaries and Distributors Worldwide •  
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com  
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