Lincoln Electric Welding System IM544 B User Manual

RETURN TO MAIN MENU  
IM544-B  
June, 1998  
Commander 400  
For use with machines having Code Numbers:  
9978, 10580 (Stick Model),  
9979, 10581 (Stick and Wire Model)  
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  
World's Leader in Welding and Cutting Products  
Premier Manufacturer of Industrial Motors  
• 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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ii  
ii  
SAFETY  
ARC RAYS can burn.  
ELECTRIC SHOCK can kill.  
3.a. The electrode and work (or ground) circuits  
are electrically “hot” when the welder is on.  
Do not touch these “hot” parts with your bare  
skin or wet clothing. Wear dry, hole-free  
gloves to insulate hands.  
4.a. Use a shield with the proper filter and cover  
plates to protect your eyes from sparks and  
the rays of the arc when welding or observing  
open arc welding. Headshield and filter lens  
should conform to ANSI Z87. I standards.  
4.b. Use suitable clothing made from durable flame-resistant  
material to protect your skin and that of your helpers from  
the arc rays.  
3.b. Insulate yourself from work and ground using dry insulation.  
Make certain the insulation is large enough to cover your full  
area of physical contact with work and ground.  
4.c. Protect other nearby personnel with suitable, non-flammable  
screening and/or warn them not to watch the arc nor expose  
themselves to the arc rays or to hot spatter or metal.  
In addition to the normal safety precautions, if welding  
must be performed under electrically hazardous  
conditions (in damp locations or while wearing wet  
clothing; on metal structures such as floors, gratings or  
scaffolds; when in cramped positions such as sitting,  
kneeling or lying, if there is a high risk of unavoidable or  
accidental contact with the workpiece or ground) use  
the following equipment:  
FUMES AND GASES  
can be dangerous.  
5.a. Welding may produce fumes and gases  
hazardous to health. Avoid breathing these  
• Semiautomatic DC Constant Voltage (Wire) Welder.  
• DC Manual (Stick) Welder.  
• AC Welder with Reduced Voltage Control.  
fumes and gases.When welding, keep  
your head out of the fume. Use enough  
ventilation and/or exhaust at the arc to keep  
3.c. In semiautomatic or automatic wire welding, the electrode,  
electrode reel, welding head, nozzle or semiautomatic  
welding gun are also electrically “hot”.  
fumes and gases away from the breathing zone. When  
welding with electrodes which require special  
ventilation such as stainless or hard facing (see  
instructions on container or MSDS) or on lead or  
cadmium plated steel and other metals or coatings  
which produce highly toxic fumes, keep exposure as  
low as possible and below Threshold Limit Values (TLV)  
using local exhaust or mechanical ventilation. In  
confined spaces or in some circumstances, outdoors, a  
respirator may be required. Additional precautions are  
also required when welding on galvanized steel.  
3.d. Always be sure the work cable makes a good electrical  
connection with the metal being welded. The connection  
should be as close as possible to the area being welded.  
3.e. Ground the work or metal to be welded to a good electrical  
(earth) ground.  
3.f. Maintain the electrode holder, work clamp, welding cable and  
welding machine in good, safe operating condition. Replace  
damaged insulation.  
5.b. Do not weld in locations near chlorinated hydrocarbon vapors  
coming from degreasing, cleaning or spraying operations.  
The heat and rays of the arc can react with solvent vapors to  
form phosgene, a highly toxic gas, and other irritating  
products.  
3.g. Never dip the electrode in water for cooling.  
3.h. Never simultaneously touch electrically “hot” parts of  
electrode holders connected to two welders because voltage  
between the two can be the total of the open circuit voltage  
of both welders.  
5.c. Shielding gases used for arc welding can displace air and  
cause injury or death. Always use enough ventilation,  
especially in confined areas, to insure breathing air is safe.  
3.i. When working above floor level, use a safety belt to protect  
yourself from a fall should you get a shock.  
5.d. Read and understand the manufacturer’s instructions for this  
equipment and the consumables to be used, including the  
material safety data sheet (MSDS) and follow your  
employer’s safety practices. MSDS forms are available from  
your welding distributor or from the manufacturer.  
3.j. Also see Items 6.c. and 8.  
5.e. Also see item 1.b.  
Mar ‘95  
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SAFETY  
WELDING SPARKS can  
cause fire or explosion.  
CYLINDER may explode  
if damaged.  
6.a. Remove fire hazards from the welding area.  
If this is not possible, cover them to prevent  
7.a. Use only compressed gas cylinders  
containing the correct shielding gas for the  
the welding sparks from starting a fire.  
Remember that welding sparks and hot  
materials from welding can easily go through small cracks  
and openings to adjacent areas. Avoid welding near  
hydraulic lines. Have a fire extinguisher readily available.  
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.b. Always keep cylinders in an upright position securely  
chained to an undercarriage or fixed support.  
6.b. Where compressed gases are to be used at the job site,  
special precautions should be used to prevent hazardous  
situations. Refer to “Safety in Welding and Cutting” (ANSI  
Standard Z49.1) and the operating information for the  
equipment being used.  
7.c. Cylinders should be located:  
Away from areas where they may be struck or subjected to  
physical damage.  
6.c. When not welding, make certain no part of the electrode  
circuit is touching the work or ground. Accidental contact can  
cause overheating and create a fire hazard.  
•A safe distance from arc welding or cutting operations and  
any other source of heat, sparks, or flame.  
7.d. Never allow the electrode, electrode holder or any other  
electrically “hot” parts to touch a cylinder.  
6.d. Do not heat, cut or weld tanks, drums or containers until the  
proper steps have been taken to insure that such procedures  
will not cause flammable or toxic vapors from substances  
inside. They can cause an explosion even though they have  
been “cleaned”. For information, purchase “Recommended  
Safe Practices for the Preparation for Welding and Cutting of  
Containers and Piping That Have Held Hazardous  
Substances”, AWS F4.1 from the American Welding Society  
(see address above).  
7.e. Keep your head and face away from the cylinder valve outlet  
when opening the cylinder valve.  
7.f. Valve protection caps should always be in place and hand  
tight except when the cylinder is in use or connected for  
use.  
7.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.  
6.e. Vent hollow castings or containers before heating, cutting or  
welding. They may explode.  
6.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.  
FOR ELECTRICALLY  
powered equipment.  
8.a. Turn off input power using the disconnect  
switch at the fuse box before working on  
the equipment.  
6.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.  
8.b. Install equipment in accordance with the U.S. National  
Electrical Code, all local codes and the manufacturer’s  
recommendations.  
6.h. Also see item 1.c.  
8.c. Ground the equipment in accordance with the U.S. National  
Electrical Code and the manufacturer’s recommendations.  
Mar ‘95  
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SAFETY  
PRÉCAUTIONS DE SÛRETÉ  
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 suiv-  
antes:  
6. Eloigner les matériaux inflammables ou les recouvrir afin de  
prévenir tout risque d’incendie dû aux étincelles.  
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 LArc  
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 met-  
allique 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 defonc-  
tionnement.  
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 soud-  
er parce que la tension entre les deux pinces peut être le  
total de la tension à vide des deux machines.  
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.  
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.  
PRÉCAUTIONS DE SÛRETÉ POUR  
LES MACHINES À SOUDER À  
TRANSFORMATEUR ET À  
REDRESSEUR  
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,  
donc:  
a. Utiliser un bon masque avec un verre filtrant approprié  
ainsi qu’un verre blanc afin de se protéger les yeux du ray-  
onnement de l’arc et des projections quand on soude ou  
quand on regarde 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.  
b. Porter des vêtements convenables afin de protéger la peau  
de soudeur et des aides contre le rayonnement de l‘arc.  
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.  
3. Avant de faires des travaux à l’interieur de poste, la debranch-  
er à l’interrupteur à la boite de fusibles.  
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, pan-  
talons sans revers, et chaussures montantes.  
4. Garder tous les couvercles et dispositifs de sûreté à leur  
place.  
5. Toujours porter des lunettes de sécurité dans la zone de  
soudage. Utiliser des lunettes avec écrans lateraux dans les  
zones où l’on pique le laitier.  
Mar. ‘93  
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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.  
Model Name & Number _____________________________________  
Code & Serial Number _____________________________________  
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.  
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TABLE OF CONTENTS  
Page  
Safety ................................................................................................................................................i-iv  
Installation................................................................................................................................Section A  
Technical Specifications................................................................................................................A-1  
Safety Precautions........................................................................................................................A-2  
Location/ Ventilation ......................................................................................................................A-2  
Stacking.................................................................................................................................A-2  
Angle of Operation ................................................................................................................A-2  
Lifting.....................................................................................................................................A-2  
High Altitude Operation .........................................................................................................A-3  
Towing ...................................................................................................................................A-3  
Pre-Operation Engine Service......................................................................................................A-3  
Oil ..........................................................................................................................................A-3  
Fuel........................................................................................................................................A-3  
Fuel Cap................................................................................................................................A-4  
Engine Cooling System.........................................................................................................A-4  
Battery Connection................................................................................................................A-4  
Muffler Outlet Pipe.................................................................................................................A-4  
Spark Arrester .......................................................................................................................A-4  
Electrical Output Connections ......................................................................................................A-4  
Welding Output Cables..........................................................................................................A-5  
Machine Grounding...............................................................................................................A-5  
Auxiliary Power Receptacles.................................................................................................A-5  
Standby Power Connections .................................................................................................A-5  
Operation..................................................................................................................................Section B  
Safety Instructions.........................................................................................................................B-1  
General Description ......................................................................................................................B-1  
Recommended Applications..................................................................................................B-1  
Design Features and Advantages.........................................................................................B-1  
Welding Capability.................................................................................................................B-1  
Controls and Settings....................................................................................................................B-3  
Engine Controls.....................................................................................................................B-3  
Welder Controls.....................................................................................................................B-5  
Auxiliary Power Controls .......................................................................................................B-5  
Engine Operation..........................................................................................................................B-6  
Starting the Engine................................................................................................................B-6  
Stopping the Engine..............................................................................................................B-6  
Break-In Period......................................................................................................................B-6  
Typical Fuel Consumption .....................................................................................................B-6  
Welder Operation..........................................................................................................................B-7  
Stick Welding.........................................................................................................................B-7  
Pipe Welding .........................................................................................................................B-7  
General Welding....................................................................................................................B-7  
TIG Welding...........................................................................................................................B-7  
Arc Gouging ..........................................................................................................................B-7  
Wire Feed (Constant Voltage) Welding .................................................................................B-9  
Connection of Stick and Wire model to LN-25, LN-7, LN-8, LN-23P or NA-3 ......................B-9  
Auxiliary Power Operation...........................................................................................................B-10  
Simultaneous Welding and Auxiliary Power Loads .............................................................B-10  
Accessories .............................................................................................................................Section C  
Optional Field Installed Accessories.............................................................................................C-1  
Recommended Equipment ...........................................................................................................C-1  
High Frequency Generators For TIG Applications........................................................................C-1  
Maintenance.............................................................................................................................Section D  
Safety Precautions........................................................................................................................D-1  
Routine and Periodic Maintenance...............................................................................................D-1  
Engine Maintenance.....................................................................................................................D-1  
Air Filter.................................................................................................................................D-1  
Fuel Filters ............................................................................................................................D-2  
Cooling System.....................................................................................................................D-3  
Cooling Blower Belt...............................................................................................................D-3  
Engine Maintenance Components........................................................................................D-4  
Troubleshooting.......................................................................................................................Section E  
Diagrams and Dimension Print ..............................................................................................Section F  
Parts Manual.........................................................................................................................P267 Series  
COMMANDER 400  
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A-1  
A-1  
INSTALLATION  
TECHNICAL SPECIFICATIONS - Commander 400  
INPUT - DIESEL ENGINE  
Make/Model  
Description  
Speed (RPM)  
Displacement  
Starting  
System  
Capacities  
Deutz  
F3L 912 Diesel  
Engine  
3 cylinder  
High Idle 1900  
173 cu. in  
(2.827 L)  
12VDC battery Fuel: 25 gal.  
& Starter 94.6 L  
44.2 HP(33kw) Low Idle 1350  
@ 1800 RPM  
Full Load 1800  
Bore x Stroke  
Oil: 8.5 Qts.  
8.04 L  
3.94” x 4.72”  
(100mm x 120mm)  
RATED OUTPUT - WELDER  
Duty Cycle  
Welding Output  
Volts at Rated Amps  
400 amps (DC Constant Current)  
400 amps (DC Constant Voltage)  
40 volts  
40 volts  
100%  
500 amps (DC Constant Current)  
500 amps (DC Constant Voltage)  
40 volts  
40 volts  
60%  
OUTPUT - WELDER AND GENERATOR  
1
Welding Range  
Open Circuit Voltage  
Auxiliary Power  
40 - 575 Amps  
in 7 Ranges (Stick model)  
or 8 Ranges (Stick & Wire model)  
64-74 OCV  
120/240 VAC  
10,000 Watts, 60 Hz.  
100% Duty Cycle  
@1915 RPM  
PHYSICAL DIMENSIONS  
2
HEIGHT  
WIDTH  
31.5 in.  
800.1 mm  
DEPTH  
WEIGHT  
42.0 in.  
63.1 in.  
1650 lbs.(748 kg)  
(Stick model)  
1683 lbs.(763 kg)  
(Stick & Wire model)  
1066.8 mm  
1602.7 mm  
1. Output rating in watts is equivalent to volt-amperes at unity power factor.  
Output voltage is within +/- 10% at all loads up to rated capacity. When welding, available auxiliary power will be reduced.  
2. Top of Enclosure. Add 6.64” (168.7mm) for exhaust.  
COMMANDER 400  
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A-2  
A-2  
INSTALLATION  
Read this entire installation section before you  
start installation.  
STACKING  
Commander 400 machines cannot be stacked.  
ANGLE OF OPERATION  
SAFETY PRECAUTIONS  
WARNING  
Do not attempt to use this equipment until you have  
thoroughly read all operating and maintenance man-  
uals supplied with your machine. They include impor-  
tant safety precautions, detailed engine starting,  
operating and maintenance instructions and parts  
lists.  
To achieve optimum engine performance the  
Commander 400 should be run in a level position. The  
maximum angle of operation for the Deutz engine is 20  
degrees in a direction to cause the control panel to be  
angled up, 30 degrees for side to side tilting and for the  
control panel to be angled down. If the engine is to be  
operated at an angle, provisions must be made for  
checking and maintaining the oil level at the normal  
(FULL) oil capacity in the crankcase. When operating  
the welder at an angle, the effective fuel capacity will  
be slightly less than the specified 25 gallons.  
ELECTRIC SHOCK can kill.  
•Do not touch electrically live parts such  
as output terminals or internal wiring.  
LIFTING  
•Insulate yourself from the work and  
ground.  
The Commander lift bale should be used to lift the  
machine. The Commander is shipped with the lift bale  
retracted. Before attempting to lift the Commander the  
lift bale must be secured in a raised position. Secure  
the lift bale as follows:  
•Always wear dry insulating gloves.  
------------------------------------------------------------------------  
ENGINE EXHAUST can kill.  
a. Open the engine compartment door.  
•Use in open, well ventilated areas or  
vent exhaust outside  
b. Locate the 2 access holes on the upper middle  
region of compartment wall just below the lift  
bale.  
•Do not stack anything near the engine.  
------------------------------------------------------------------------  
c. Use the lifting strap to raise the lift bale to the full  
upright position. This will align the mounting  
holes on the lift bale with the access holes.  
MOVING PARTS can injure.  
•Do not operate with doors open or  
guards off.  
d. Secure the lift bale with 2 thread forming screws.  
The screws are provided in the shipped loose  
parts bag.  
•Stop engine before servicing.  
•Keep away from moving parts  
------------------------------------------------------------------------  
Only qualified personnel should install, use or service  
this equipment  
WARNING  
FALLING EQUIPMENT can cause  
injury.  
LOCATION/VENTILATION  
•Do not lift this machine using lift bale if  
it is equipped with a heavy accessory  
such as a trailer or gas cylinder.  
The welder should be located to provide an unrestricted  
flow of clean, cool air to the cooling air inlets and to avoid  
restricting the cooling air outlets. Also, locate the welder  
so that the engine exhaust fumes are properly vented to  
an outside area.  
•Lift only with equipment of adequate  
lifting capacity.  
•Be sure machine is stable when lifting.  
------------------------------------------------------------------------  
COMMANDER 400  
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A-3  
A-3  
INSTALLATION  
HIGH ALTITUDE OPERATION  
PRE-OPERATION ENGINE SERVICE  
At higher altitudes, output derating may be necessary.  
As a rule of thumb, derate the welder output 5% for  
every 400 meters (1312 ft.) above 1000 meters (3280  
ft.).  
READ the engine operating and maintenance instruc-  
tions supplied with this machine.  
WARNING  
Contact a Deutz Service Representative for any engine  
adjustments that may be required for high altitude  
operation.  
•Stop engine and allow to cool before  
fueling.  
•Do not smoke when fueling.  
TOWING  
•Fill fuel tank at a moderate rate and do  
not overfill.  
The recommended trailer for use with this equipment  
for road, in-plant and yard towing by a vehicle  
Lincoln’s K953-1. If the user adapts a non-Lincoln  
trailer, he must assume responsibility that the method  
of attachment and usage does not result in a safety  
hazard nor damage the welding equipment. Some of  
the factors to be considered are as follows:  
(1)  
is  
•Wipe up spilled fuel and allow fumes to  
clear before starting engine.  
•Keep sparks and flame away from  
tank.  
------------------------------------------------------------------------  
1. Design capacity of trailer vs. weight of Lincoln  
equipment and likely additional attachments.  
OIL  
The Commander is shipped with the engine crankcase  
filled with high quality SAE 10W-30 oil (API class CD or  
better). Check the oil level before starting the engine. If it  
is not up to the full mark on the dip stick, add oil as  
required. Check the oil level every four hours of running  
time during the first 35 running hours. Refer to the engine  
Operator’s Manual for specific oil recommendations and  
break-in information. The oil change interval is dependent  
on the quality of the oil and the operating environment.  
Refer to the engine Operator’s Manual for the proper ser-  
vice and maintenance intervals.  
2. Proper support of, and attachment to, the base of  
the welding equipment so that there will be no  
undue stress to the trailer’s framework.  
3. Proper placement of the equipment on the trailer to  
insure stability side to side and front to back when  
being moved and when standing by itself.  
4. Typical conditions of use, such as travel speed,  
roughness of surface on which the trailer will be  
operated, and environmental conditions.  
FUEL USE DIESEL FUEL ONLY  
5. Proper preventative maintenance of trailer.  
Fill the fuel tank with clean, fresh diesel fuel. The capac-  
ity of the fuel tank is 25 gallons (94.6 liters). See engine  
Operator’s Manual for specific fuel recommendations.  
The Commander 400 is protected by a low fuel shutdown  
to prevent the engine from running out of fuel. The  
machine will indicate a low fuel condition by turning on the  
low fuel light. A time of 30 minutes will elapse once the  
low fuel light illuminates before the machine will shut-  
down. A restart of the machine will restart the timer to  
allow the operator to override this feature. The amount of  
reserve fuel remaining in the tank after the first shutdown  
will vary from machine to machine. The operator must  
determine the amount of fuel remaining before re-starting  
the machine. Running out of fuel may require bleeding  
the fuel injection pump.  
1
6. Conformance with federal, state and local laws.  
1Consult applicable federal, state and local laws  
regarding specific requirements for use on public high-  
ways.  
NOTE: Before starting the engine, open the fuel shutoff  
valve (lever to be in line with hose) located on the side the  
fuel pre-filter / water separator housing.  
COMMANDER 400  
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A-4  
A-4  
INSTALLATION  
FUEL CAP  
MUFFLER OUTLET PIPE  
Remove the plastic cap covering from the Fuel Tank  
Filler neck and install the Fuel Cap.  
Remove the plastic plug covering the muffler outlet  
tube. Using the clamp provided secure the outlet pipe  
to the outlet tube with the pipe positioned such that it  
will direct the exhaust in the desired direction.  
ENGINE COOLING SYSTEM  
SPARK ARRESTER  
The Deutz engine is air cooled by a belt driven axial  
blower. The oil cooler and engine cooling fins should  
be blown out with compressed air or steam to maintain  
proper cooling (See the engine Owners Manual for pro-  
cedures and frequency).  
Some federal, state or local laws may require that  
gasoline or diesel engines be equipped with exhaust  
spark arresters when they are operated in certain loca-  
tions where unarrested sparks may present a fire haz-  
ard. The standard muffler included with this welder  
does not qualify as a spark arrester. When required by  
local regulations, a suitable spark arrester, such as the  
K899-1 must be installed and properly maintained.  
BATTERY CONNECTION  
WARNING: Use caution as the electrolyte is a strong  
acid that can burn skin and damage eyes.  
Remove and discard the insulating cap from the nega-  
tive battery terminal. Attach and tighten negative bat-  
tery cable terminal.  
CAUTION  
NOTE: This machine is furnished with a wet charged battery; if  
unused for several months, the battery may require a booster  
charge. Be careful to charge the battery with the correct polar-  
ity. Make sure that the battery is level while charging.  
An incorrect arrester may lead to damage to the engine  
or adversely affect performance.  
------------------------------------------------------------------------  
ELECTRICAL OUTPUT CONNECTIONS  
See Figure A.1 for the location of the weld output terminals, ground stud, and auxiliary power receptacles  
OIL  
FUEL  
TEMP  
PRESS  
AMPS  
0
0
0
0
0
0
HOURS  
120 VOLT  
RECEPTACLES  
CV WORK -  
WELD OUTPUT  
TERMINAL  
-
+
-
240 VOLT RECEPTACLE  
GROUND STUD  
WELD OUTPUT TERMINALS  
(ELECTRODE + & CC WORK -)  
FIGURE A.1 - Weld Terminal, Ground Stud and Auxiliary Power Receptacle Locations  
COMMANDER 400  
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A-5  
A-5  
INSTALLATION  
joints, or to the metal framework of a building which  
has been effectively grounded. The U.S. National  
Electrical Code lists a number of alternate means of  
grounding electrical equipment. A machine grounding  
WELDING OUTPUT CABLES  
With the engine off, route the electrode and work  
cables thru the strain relief bracket provided on either  
side of the base and connect to the terminals provided.  
These connections should be checked periodically and  
tightened if necessary.  
stud marked with the  
front of the welder.  
symbol is provided on the  
AUXILIARY POWER RECEPTACLES  
Listed in Table A.1 are copper cable sizes recom-  
mended for the rated current and duty cycle. Lengths  
stipulated are the distance from the welder to work and  
back to the welder again. Cable sizes are increased for  
greater lengths primarily for the purpose of minimizing  
cable voltage drop.  
The auxiliary power capacity of the Commander 400 is  
10,000 watts of 60 Hz, single phase power. The auxil-  
iary power capacity rating in watts is equivalent to volt-  
amperes at unity power factor. The maximum permis-  
sible current of the 240 VAC output is 44 A. The 240  
VAC output can be split to provide two separate 120  
VAC outputs with a maximum permissible current of 44  
A per output to two separate 120 VAC branch circuits.  
The output voltage is within 10% at all loads up to  
rated capacity.  
Table A.1 Combined Length of Electrode and Work  
Cables.  
TOTAL COMBINED LENGTH OF ELEC-  
TRODE AND WORK CABLES  
AMPS  
@100%  
Duty Cycle  
Up to 150 150-200 FT. 200-250 FT.  
FT.  
NOTE: The 120/240V receptacle has two 120V outlets  
of different phases and cannot be paralleled.  
The Commander has two 15 Amp-120VAC (5-15R)  
duplex receptacles with GFCI protection and one 50  
Amp-120/240 VAC (14-50R) receptacle. The 120/240  
VAC receptacle can be split for single phase 120 VAC  
operation. The auxiliary power receptacles should only  
be used with three wire grounded type plugs or  
approved double insulated tools with two wire plugs.  
The current rating of any plug used with the system  
must be at least equal to the current capacity of the  
associated receptacle.  
250  
400  
1 AWG  
1 AWG  
1/0 AWG  
4/0 AWG  
3/0 AWG  
3/0 AWG  
MACHINE GROUNDING  
Because this portable engine driven welder creates its  
own power, it is not necessary to connect its frame to  
an earth ground, unless the machine is connected to  
premises wiring (home, shop, etc.).  
STANDBY POWER CONNECTIONS  
To prevent dangerous electric shock, other equipment  
powered by this engine driven welder must:  
The Commander 400 is suitable for temporary, stand-  
by or emergency power using the engine manufactur-  
er’s recommended maintenance schedule.  
a) be grounded to the frame of the welder using a  
grounded type plug,  
or  
The Commander 400 can be permanently installed as  
a standby power unit for 240 volt-3 wire, 44 amp ser-  
vice. Connections must be made by a licensed electri-  
cian who can determine how the 120/240 VAC power  
can be adapted to the particular installation and com-  
ply with all applicable electrical codes. The following  
information can be used as a guide by the electrician  
for most applications. Refer to the connection diagram  
shown in Figure A.2.  
b) be double insulated.  
When this welder is mounted on a truck or trailer, its  
frame must be securely connected to the metal frame  
of the vehicle. When this engine driven welder is con-  
nected to premises wiring such as that in a home or  
shop, its frame must be connected to the system earth  
ground. See further connection instructions in the sec-  
tion entitled “Standby Power Connections” as well as  
the article on grounding in the latest U.S. National  
Electrical Code and the local code.  
1. Install the double-pole, double-throw switch between  
the power company meter and the premises discon-  
nect.  
In general, if the machine is to be grounded, it should  
be connected with a #8 or larger copper wire to a solid  
earth ground such as a metal water pipe going into the  
ground for at least ten feet and having no insulated  
Switch rating must be the same or greater than the  
customer’s premises disconnect and service over cur-  
rent protection.  
COMMANDER 400  
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A-6  
A-6  
INSTALLATION  
2. Take necessary steps to assure load is limited to the  
capacity of the Commander by installing a 45 amp,  
240 VAC double pole circuit breaker. Maximum  
rated load for each leg of the 240 VAC auxiliary is 45  
amperes. Loading above the rated output will  
reduce output voltage below the allowable -10% of  
rated voltage which may damage appliances or  
other motor-driven equipment and may result in  
overheating of the Commander 400 engine.  
3. Install a 50 amp 120/240 VAC plug (NEMA Type 14-  
50) to the double-pole circuit breaker using No. 6, 4  
conductor cable of the desired length. (The 50 amp,  
120/240 VAC plug is available in the optional K802R  
plug kit.)  
4. Plug this cable into the 50 Amp 120/240 Volt recep-  
tacle on the Commander 400 case front.  
Figure A.2 Connection of the Commander 400 to Premises Wiring  
240 VOLT  
GROUNDED CONDUCTOR  
POWER  
COMPANY  
METER  
240 Volt  
60 Hz.  
3-Wire  
Service  
120 VOLT  
120 VOLT  
NEUTRAL  
BUS  
N
LOAD  
DOUBLE POLE DOUBLE THROW  
SWITCH RATING TO BE THE SAME  
AS OR GREATER THAN PREMISES  
SERVICE OVERCURRENT  
PROTECTION.  
PREMISES  
DISCONNECT AND  
SERVICE  
GROUND  
OVERCURRENT  
45AMP  
240 VOLT  
PROTECTION  
DOUBLE  
POLE  
CIRCUIT  
BREAKER  
50 AMP, 120/240  
VOLT PLUG  
240 VOLT  
NEMA TYPE 14-50  
GND  
N
50 AMP, 120/240 VOLT  
RECEPTACLE  
NOTE: No. 8 COPPER CONDUCTOR CABLE SEE  
NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE  
SIZE RECOMMENDATIONS.  
COMMANDER 400  
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B-1  
B-1  
OPERATION  
OPERATING INSTRUCTIONS  
GENERAL DESCRIPTION  
Read and understand this entire section before operat-  
ing your Commander 400.  
The Commander is a diesel engine driven welding  
power source. The machine uses a brushless asyn-  
chronous alternating current generator for DC stick  
electrode welding and for 120/240 VAC auxiliary stand-  
by power. As a generator it can supply up to 10,000  
watts of 120/240 volt AC power. As a welder it provides  
up to 400 amps of DC constant current output in six  
slope-controlled ranges. In addition a seventh general  
purpose welding range provides up to 575 amps of  
constant current welding output.  
SAFETY INSTRUCTIONS  
WARNING  
Do not attempt to use this equipment until you have  
thoroughly read all operating and maintenance man-  
uals supplied with your machine. They include impor-  
tant safety precautions, detailed engine starting,  
operating and maintenance instructions and parts  
lists.  
The engine is a 44.2 Hp (33kw), 3-cylinder air/oil  
cooled diesel made by Deutz. This naturally aspirated,  
4 cycle engine features direct injection, a Bosch in-line  
injection pump and a Bosch mechanical governor.  
ELECTRIC SHOCK can kill.  
This machine is controlled by a high quality microcon-  
troller. The microcontroller provides high speed control  
of the weld process as well as the engine protection  
features.  
•Do not touch electrically live parts such  
as output terminals or internal wiring.  
•Insulate yourself from the work and  
ground.  
RECOMMENDED APPLICATIONS  
WELDER  
•Always wear dry insulating gloves.  
------------------------------------------------------------------------  
The Commander 400 (Stick model) provides excellent con-  
stant current DC welding output for stick (SMAW) welding.  
The Commander 400 (Stick & Wire model) also provides  
excellent constant voltage DC welding output for MIG  
(GMAW) and Innershield (FCAW) welding.  
ENGINE EXHAUST can kill.  
•Use in open, well ventilated areas or  
vent exhaust outside  
GENERATOR  
•Do not stack anything near the engine.  
------------------------------------------------------------------------  
The Commander 400 provides smooth 120/240 VAC  
output for auxiliary power and emergency standby  
power.  
MOVING PARTS can injure.  
•Do not operate with doors open or  
guards off.  
DESIGN FEATURES AND ADVANTAGES  
(All Models)  
•Stop engine before servicing.  
FOR STICK WELDING  
• Excellent DC constant current output for stick weld-  
ing applications.  
•Keep away from moving parts  
------------------------------------------------------------------------  
Only qualified personnel should operate this equip-  
ment.  
• 40 to 400 amps output in six slope controlled ranges  
for out-of position and pipe electrodes and 50 to 575  
amps constant current output in one general purpose  
welding range.  
ADDITIONAL SAFETY PRECAUTIONS  
• 3 digit display is provided for presetting the weld  
amperage and displaying the actual amperage during  
welding. The display uses superbrite L.E.D.’s for  
improved readability in full sunlight.  
Always operate the welder with the hinged door closed  
and the side panels in place as these provide maxi-  
mum protection from moving parts and insure proper  
cooling air flow.  
• Remote control capability standard on all models.  
COMMANDER 400  
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B-2  
B-2  
OPERATION  
• Copper alternator windings and high temperature  
• Selection of “hot” or “cold” output terminals with a tog-  
gle switch on the control panel. This feature can also  
be controlled by installing a remote output terminal  
control cable designed to open and close the #2 and  
#4 leads in the amphenol receptacle.  
insulation for dependability and long life.  
ADDITIONAL DESIGN FEATURES AND  
ADVANTAGES (Stick & Wire Model only)  
FOR WIRE WELDING  
FOR AUXILIARY POWER  
• One constant voltage position for all wire welding. A  
12 to 45V range across the entire current output  
range.  
• 10,000 watts of 120/240 VAC, 60Hz auxiliary power.  
• Drive a 2 HP motor (provided it is started under no  
load).  
• Excellent arc characteristics with MIG (GMAW) and  
Innershield (FCAW) welding.  
Two 15 amp 120 VAC duplex receptacles with GFCI  
protection for up to 30 amps of 120 VAC power.  
• A Wire Feeder connector for quick connection of the  
control cable.  
• One 50 amp, 120/240 VAC dual voltage receptacle for  
up to 44 amps of 240 VAC, and up to 44 amps per  
side to separate branch circuits (not in parallel) of 120  
VAC single phase auxiliary power. Allows easy con-  
nection to premises wiring.  
• A built in “Electronic Contactor” for “Cold” electrode  
when not welding. This feature and DC Constant  
Voltage output provide an added margin of safety  
when welding must be performed under electrically  
hazardous conditions such as: damp locations, while  
wearing wet clothing or in cramped positions if there  
is a high risk of unavoidable or accidental contact with  
the workpiece or ground.  
• Weld and AC auxiliary power at the same time (with-  
in machine total capacity).  
OTHER FEATURES  
• Deutz 3-cylinder, air/oil cooled diesel engine.  
Designed for long life, easy maintenance and excel-  
lent fuel economy.  
• The 3 digit display has the additional feature of pre-  
setting the open circuit voltage and displaying the  
actual voltage during welding.  
• Engine protection system shuts the engine down for  
low oil pressure, high oil temperature or a broken  
fan/engine alternator belt.  
Designed for use with the following Lincoln wire feeders.  
•LN-25  
•LN-8  
•LN-23P  
•NA-3  
•LN-7  
•Spool Gun &  
K488 Module  
• Gauges for oil pressure, oil temperature, engine alter-  
nator output and fuel level.  
WELDING CAPABILITY  
• Indicator lights for low oil pressure, high oil tempera-  
ture, engine alternator low output/broken belt and low  
fuel level.  
The Commander 400 is rated at 400 amps, 40 volts at  
100% duty cycle. The weld current is variable from 40  
to 575 amps.  
• Automatic low fuel shutdown before running out of  
fuel.  
• Engine hour meter standard on all models.  
• Extended range 25 gallon (94.6 l) fuel tank.  
• Fuel pre-filter/water separator with “dry” change ele-  
ment.  
• Automatic idler reduces engine speed when not weld-  
ing or drawing auxiliary power. This feature reduces  
fuel consumption and extends engine life.  
• Single side engine service with over the top access to  
the engine.  
COMMANDER 400  
MAY96  
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B-3  
B-3  
OPERATION  
CONTROLS AND SETTINGS  
All welder and engine controls are located on the case front panel. Refer to Figure B.1 and the explanations that  
follow.  
Figure B.1 Case Front Panel Controls  
3
2
4
5
6
7
1
8
9
9
OIL  
FUEL  
TEMP  
PRESS  
AMPS  
0
0
0
0
0
0
11  
12  
HOURS  
10  
23  
13  
17  
22  
21  
24  
-
20  
+
-
15  
16  
18  
19  
14  
ENGINE CONTROLS (Items 1 through 8)  
3. FUEL LEVEL GAUGE AND LIGHT  
1.  
RUN-  
STOP SWITCH  
Displays the level of diesel fuel in the 25-gallon fuel  
tank. The yellow light turns on when the fuel gage  
reaches the reserve level. Once the reserve level is  
reached, the engine protection system will shut down  
the engine after 30 minutes of operation. The machine  
can be restarted and operated for an additional 30 min-  
utes before the protection system will shut down the  
engine. This ability to override the engine protection is  
to allow the operator to “finish up” if necessary. The  
operator must watch the fuel level closely to prevent  
running out of fuel and having to bleed the system.  
When placed in the “RUN” position, this switch ener-  
gizes the fuel solenoid and other electric accessories.  
When placed in the “STOP” position, the flow of fuel to  
the injection pump is stopped to shut down the engine.  
(Note: If the switch is left in the “RUN” position and the  
engine is not running, the battery will be drained by the  
fuel solenoid).  
2. START PUSHBUTTON  
Energizes the starter motor to crank the engine. With  
the engine RUN-STOP switch in the “Run” position,  
push and hold the START button for a minimum of 2  
seconds to crank the engine; release as the engine  
starts. Do not press while engine is running since this  
can cause damage to the ring gear and/or starter  
motor.  
COMMANDER 400  
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B-4  
B-4  
OPERATION  
4. ENGINE TEMPERATURE GAUGE AND  
at full speed.  
LIGHT  
The gauge displays the engine oil temperature. The  
yellow temperature light remains off under normal  
operating temperatures. If the light turns on, the  
engine protection system will shut down the engine.  
Check for restrictions at the engine cooling air inlets  
and outlets (consult the engine Operator’s Manual).  
Check for loose or disconnected leads at the tempera-  
ture sender located on the engine. Check engine cool-  
ing blower belt. Also, check to be sure that the welder  
loads are within the rating of the welder. The light will  
remain on when the engine has been shut down due to  
an over- temperature condition.  
c. When welding ceases or the AC power load is  
turned off, a fixed time delay of approximately 15  
seconds starts.  
d. If the welding or AC power load is not restarted  
before the end of the time delay, the idler reduces  
the engine speed to low idle speed.  
e. The engine will automatically return to high idle  
speed when the welding load or A.C. power load  
is reapplied.  
Idler Operational exceptions  
5. OIL PRESSURE GAUGE AND LIGHT  
The gauge displays the engine oil pressure when the  
engine is running. The yellow oil pressure light  
remains off with proper oil pressure. If the light turns  
on, the engine protection system will stop the engine.  
Check for proper oil level and add oil if necessary.  
Check for loose or disconnected leads at the oil pres-  
sure sender located on the engine. The light will go on  
and stay on when the RUN-STOP switch is switched to  
the “Run” position with engine not running.  
When the WELDING TERMINALS switch is in the  
“Welding Terminals Remotely Controlled” position the  
idler will operate as follows:  
a. When the triggering device (Amptrol, Arc Start  
Switch, etc.) is pressed the engine will accelerate  
and operate at full speed provided a welding load is  
applied within approximately 15 seconds.  
• If the triggering device remains pressed but no weld-  
ing load is applied within approximately 15 seconds  
the engine will return to low idle speed.  
6. ENGINE ALTERNATOR AMMETER  
AND LIGHT  
The yellow engine alternator light is off when battery  
charging system is functioning normally. If light turns  
on, the engine protection system will shut down the  
engine. Check the engine cooling blower belt. Also,  
the alternator or the voltage regulator may not be oper-  
ating correctly. The light may also come on if the alter-  
nator did not flash up due to not holding the start but-  
ton in long enough (minimum of 2 seconds) or due to a  
faulty flashing circuit. The light will remain on when the  
engine has been shut down due to a fault in the alter-  
nator, regulator, or the cooling blower belt.  
• If the triggering device is released or welding ceases  
the engine will return to low idle speed after approxi-  
mately 15 seconds.  
8. HOUR METER  
The hour meter displays the total time that the engine  
has been running. This meter is a useful indicator for  
scheduling preventive maintenance.  
7. IDLER SWITCH  
Has two positions as follows:  
A) In the “High” position  
, the engine runs at  
the high idle speed controlled by the governor.  
B) In the “Auto”  
/
position, the idler oper-  
ates as follows:  
a. When switched from “High” to “Auto” or after  
starting the engine, the engine will operate at full  
speed for approximately 15 seconds and then go  
to low idle speed.  
b. When the electrode touches the work or power is  
drawn for lights or tools (approximately 100 Watts  
minimum) the engine accelerates and operates  
COMMANDER 400  
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B-5  
B-5  
OPERATION  
With the switch in the “Welding Terminals Always On”  
position the contactor is closed and the welding termi-  
nals are always “Hot”.  
WELDER CONTROLS (Items 9 through 14 )  
9. OUTPUT  
CONTROL  
RANGE SWITCH & OUTPUT  
With the switch in the “Welding Terminals Remotely  
Controlled” position the contactor operation is con-  
trolled by an Amptrol, Arc Start Switch or some other  
type of triggering device through the use of a control  
cable connected to the 6-pin MS connector.  
These two controls allow you to select between various  
welding output slopes and adjust the desired welding  
output. Refer to Table B.1 for a description of how  
these two controls work.  
Table B.1 Output Range Switch and Output Control  
Functions  
When the triggering device is pressed the contactor is  
closed and the welding terminals are “Hot”.  
Control2  
When the triggering device is released the contactor is  
opened and the welding terminals are “Cold”.  
Range  
Switch1  
12. LOCAL  
/REMOTE  
SWITCH  
Sloped Output for  
Pipe Welding.  
(all models)  
6 Range  
Settings  
90, 120, 180,  
230, 270, 400  
(Max. current on  
each setting)  
The toggle switch on the control panel labeled  
“Local/Remote” gives the operator the option of con-  
trolling the output at the welder control panel or at a  
remote station.  
For remote control the toggle switch is set in the  
“Remote” position.  
Provides a fine  
adjustment of  
welding current  
or voltage from  
Min (1) to Max  
(10) within each  
range  
Constant Current  
Output for  
Fabrication and  
General Purpose  
Welding (This set-  
ting also used for  
TIG) (all models)  
1 Range setting  
50-575 Amps  
For control at the welder control panel, the toggle  
switch is set in the “Local” position.  
13. 6 - PIN CONNECTOR  
The 6-pin connector located on the control panel  
allows for connection of Remote Control accessories.  
1 Range setting  
12 to 40 Volts  
Constant Voltage  
Output for Wire  
Welding (Stick &  
Wire model only)  
14. WELD OUTPUT TERMINALS + AND -  
These 1/2 - 13 studs with flange nuts provide welding  
connection points for the electrode and work cables.  
For positive polarity welding the electrode cable con-  
nects to the “+” terminal and the work cable connects  
to this “-” terminal. For negative polarity welding the  
work cable connects to the “+” terminal and the elec-  
trode cable connects to this “-” terminal.  
1
2
If the OUTPUT RANGE switch is positioned between settings the  
previous setting is maintained until the switch is properly positioned  
on a setting.  
OUTPUT CONTROL also controls O.C.V. while in the 6 sloped out-  
put ranges.  
AUXILIARY POWER CONTROLS  
(Items 15 - 19 )  
10. DIGITAL OUTPUT METER  
The digital output meter is located in the center of the  
control panel between the two large control knobs. The  
meter allows the output current level to be set prior to  
welding. During the welding process the meter dis-  
plays the actual output current.  
15. 120/240VAC RECEPTACLE  
This is a 120/240VAC (14-50R) receptacle that pro-  
vides 240VAC or can be split for 120VAC single phase  
auxiliary power. This receptacle has a 50 amp rating.  
Refer to the AUXILIARY POWER RECEPTACLES sec-  
tion in the installation chapter for further information  
about this receptacle. Also refer to the AUXILIARY  
POWER OPERATION section later in this chapter.  
11. WELDING TERMINALS SWITCH  
The toggle switch on the control panel labeled  
“Welding Terminals Always On” and “Welding  
Terminals Remotely Controlled”: is used to control the  
operation of the “solid state contactor” which allows for  
the selection of “Hot” or “Cold” welding terminals.  
16. 50 AMP CIRCUIT BREAKERS  
These circuit breaker provide separate overload cur-  
rent protection for each 120V circuit at the 240V recep-  
tacle.  
COMMANDER 400  
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B-6  
B-6  
OPERATION  
17. 120VAC RECEPTACLES  
3. Remove all plugs connected to the AC power receptacles.  
These two 120VAC (5-15R) receptacles with GFCI pro-  
tection provide 120VAC for auxiliary power. These  
receptacles have a 20 amp total rating. Refer to the  
AUXILIARY POWER RECEPTACLES section in the  
installation chapter for further information about these  
receptacles. Also refer to the AUXILIARY POWER  
OPERATION section later in this chapter.  
4. Set IDLER switch to “AUTO”.  
5. Set the RUN/STOP switch to “RUN”. Observe that all  
engine protection lights momentarily turn on, some lights  
may turn off before starting. Check the fuel gauge to  
make sure that there is an adequate fuel level.  
18. 15 AMP CIRCUIT BREAKERS  
6. Press and hold the engine START button for a minimum  
of 2 seconds.  
These circuit breakers provide separate overload cur-  
rent protection for each 120V receptacle.  
7. Release the engine START button when the engine starts.  
19. GROUND STUD  
Provides a connection point for connecting the  
machine case to earth ground for the safest grounding  
procedure. Refer to “MACHINE GROUNDING” in the  
Installation chapter for proper machine grounding infor-  
mation.  
8. Check that the indicator lights are off. If the LOW FUEL light is  
on , the engine will shutdown 30 minutes after starting. If any  
other indicator light is on after starting, the engine will shut-  
down in a few seconds. Investigate any indicated problem.  
9. Allow the engine to warm up at low idle speed for several  
minutes before applying a load and/or switching to high  
idle. Allow a longer warm up time in cold weather.  
WIRE FEEDER MODE CONTROLS  
(Items 20 - 24 Stick & Wire model only)  
COLD WEATHER STARTING / RUNNING  
20. WELD OUTPUT TERMINAL - WIRE  
This 1/2-13 stud with flange nut provides a welding  
connection point for the electrode and work cables. For  
positive polarity welding the electrode cable connects  
to the “+” terminal and the work cable connects to this  
“-” terminal. For negative polarity welding the work  
cable connects to the “+” terminal and the electrode  
cable connects to this “-” terminal.  
With a fully charged battery and the proper weight oil,  
the engine should start satisfactorily even down to  
about 0°F. If the engine must be frequently started  
o
below 10 F, it may be desirable to install the optional  
ether starter kit (K825-1). Installation and operating  
instructions are included in the kit. Use ether starting  
only when required because excessive use shortens  
engine life. If the engine must be operated in extreme  
cold environments 0°F to -35°F (-18°C to -37°C) an  
optional Cold Weather Kit (K1665-1) is available.  
Installation and operating instructions are included in  
the kit.  
21. 15 AMP CIRCUIT BREAKER  
This circuit breaker provides overload protection for the  
14-pin connector.  
22. VOLTMETER +/- SWITCH  
Changes the polarity display on the wire feeder.  
STOPPING THE ENGINE  
1. Switch the RUN/STOP switch to “STOP”. This turns  
off the voltage supplied to the shutdown solenoid. A  
backup shutdown can be accomplished by shutting  
off the fuel valve located on the fuel filter housing.  
23. VOLTS-AMPS SWITCH  
Switches the display between volts and amps.  
24. 14 - PIN CONNECTOR  
For quick connection of wire feeder control cable.  
BREAK-IN PERIOD  
The engine used to supply power for your welder is a  
heavy duty, industrial engine. It is designed and built  
for rugged use. It is very normal for any engine to use  
small quantities of oil until the break-in is accom-  
plished. Check the oil level twice a day during the  
break-in period (about 200 running hours).  
ENGINE OPERATION  
STARTING THE ENGINE  
1. Open the engine compartment door and check that  
the fuel shutoff valve located to the left of the fuel fil-  
ter housing is in the open position (lever to be in line  
with the hose).  
IMPORTANT  
IN ORDER TO ACCOMPLISH THIS BREAK-IN, THE  
UNIT SHOULD BE SUBJECTED TO HEAVY LOADS,  
WITHIN THE RATING OF THE MACHINE. AVOID  
LONG IDLE RUNNING PERIODS.  
2. Check for proper oil level on the oil dipstick. Close  
engine compartment door.  
COMMANDER 400  
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B-7  
B-7  
OPERATION  
setting and lower open circuit voltage. For example: to  
obtain 175 amps and a forceful arc, set the to the “230  
MAX” position and then adjust the OUTPUT CON-  
TROL to get 175 amps.  
TYPICAL FUEL CONSUMPTION  
Refer to Table B.2 for typical fuel consumption of the  
Commander 400’s Engine for various operating sce-  
narios.  
GENERAL WELDING  
Table B.2 Deutz F3L 912 Engine Fuel Consumption  
The seventh position of the OUTPUT RANGE switch is  
designed for horizontal welds with all types of elec-  
trodes especially low hydrogen. The OUTPUT CON-  
TROL adjusts the full range of 50 to 575 amps. This  
setting provides a soft, constant current arc. If a more  
forceful arc is desired, then select the proper range  
from the slope controlled current ranges.  
Deutz F3L 912 Running Time for  
44.2 Hp  
@ 1800 RPM  
25 gallons  
(Hours)  
Low Idle - No  
.30 gallons/hour  
83.3  
32.1  
13.6  
Load 1350 RPM (1.36 liters/hour)  
TIG WELDING  
High Idle - No  
Load 1900 RPM ( 3.55 liters/hour)  
.78 gallons/hour  
The Commander 400 can be used in a wide variety of  
DC Tungsten Inert Gas (TIG) welding applications for  
DC TIG welding up to 400A at a 20% duty cycle, 300A  
at a 60% duty cycle and 250A at a 80% duty cycle.  
Refer to Table B.3 for recommended output setting  
depending on the tungsten electrode size. The  
Commander can be used without a TIG module or Hi-  
Freq Unit for scratch start DC TIG welding. Using a  
K799 Hi-Freq Unit or K930-1 TIG Module enables DC  
TIG welding without having to scratch start. The end of  
this section also details Commander 400 settings  
when using either of these units for DC TIG welding.  
Also refer to the Accessories chapter for recommend-  
ed equipment for TIG welding.  
DC CC Weld  
Output 400  
1.84 gallons/hour  
( 8.36 liters/hour)  
Amps @ 40 Volts  
Auxiliary Power  
10,000 VA  
1.32 gallons/hour  
(6.00 liters/hour)  
18.9  
WELDER OPERATION  
STICK WELDING  
The Commander 400 can be used with a broad range  
of DC stick electrodes.  
ARC GOUGING  
The OUTPUT RANGE switch provides six overlapping  
slope controlled current ranges. The OUTPUT CON-  
TROL adjusts the current from minimum to maximum  
within each range. Open circuit voltage is also con-  
trolled by the OUTPUT CONTROL in the slope con-  
trolled setting. These slope controlled settings are  
intended for “out-of-position” welding, including pipe  
where the operator would like to control the current  
level by changing the arc length.  
Set the output range switch to the General purpose  
position (50-575). For current setting, refer to The  
Procedure Handbook of Arc Welding, section on arc  
gouging (13.5) or the consumable manufacturer’s rec-  
ommended current rating.  
PIPE WELDING  
When using a sloped range, high open circuit voltage  
setting provides the softest arc with best resistance to  
pop-outs. To get this characteristic, set the OUTPUT  
RANGE switch to the lowest setting that still provides  
the current you need and set the OUTPUT CONTROL  
near maximum. For example: to obtain 175 amps and  
a soft arc, set the OUTPUT RANGE switch to the “180  
MAX” position and then adjust the OUTPUT CON-  
TROL for 175 amps.  
When a forceful “digging” arc is required, use a higher  
COMMANDER 400  
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B-8  
B-8  
OPERATION  
Table B.3 TYPICAL CURRENT RANGES (1) FOR TUNGSTEN ELECTRODES(2)  
DCEN (-)  
DCEP (+)  
Approximate Argon Gas Flow Rate  
C.F.H. (l/min.)  
Tungsten  
Electrode  
Diameter  
in. (mm)  
TIG TORCH  
Nozzle  
1%, 2%  
Thoriated  
Tungsten  
1%, 2%  
Thoriated  
Tungsten  
Aluminum  
(2-4)  
Stainless Steel  
Size (4), (5)  
0 .010 (.25)  
0.020 (.50)  
0.040 (1.0)  
2-15  
5-20  
15-80  
(3)  
(3)  
(3)  
3-8  
5-10  
5-10  
3-8  
(2-4)  
(3-5)  
(3-5)  
#4, #5, #6  
(3-5)  
(3-5)  
5-10  
5-10  
1/16  
(1.6)  
70-150  
10-20  
5-10  
(3-5)  
9-13  
(4-6)  
#5, #6  
3/32  
1/8  
(2.4)  
(3.2)  
150-250  
250-400  
15-30  
25-40  
13-17 (6-8)  
11-15 (5-7)  
#6, #7, #8  
15-23 (7-11) 11-15 (5-7)  
5/32  
3/16  
1/4  
(4.0)  
(4.8)  
(6.4)  
400-500  
500-750  
750-1000  
40-55  
55-80  
80-125  
21-25 (10-12) 13-17 (6-8)  
23-27 (11-13) 18-22 (8-10)  
28-32 (13-15) 23-27 (11-13)  
#8, #10  
(1) When used with argon gas. The current ranges shown must be reduced when using argon/helium or pure helium  
shielding gases.  
(2) Tungsten electrodes are classified as follows by the American Welding Society (AWS):  
Pure  
1% Thoriated  
2% Thoriated  
EWP  
EWTh-1  
EWTh-2  
Though not yet recognized by the AWS, Ceriated Tungsten is now widely accepted as a substitute for 2% Thoriated  
Tungsten in AC and DC applications.  
(3) DCEP is not commonly used in these sizes.  
(4) TIG torch nozzle “sizes” are in multiples of 1/16ths of an inch:  
# 4 = 1/4 in.  
# 5 = 5/16 in.  
# 6 = 3/8 in.  
# 7 = 7/16 in.  
# 8 = 1/2 in.  
#10 = 5/8 in.  
(6 mm)  
(8 mm)  
(10 mm)  
(11 mm)  
(12.5 mm)  
(16 mm)  
(5) TIG torch nozzles are typically made from alumina ceramic. Special applications may require lava nozzles, which are  
less prone to breakage, but cannot withstand high temperatures and high duty cycles.  
COMMANDER 400 SETTINGS WHEN USING THE  
K799 HI-FREQ UNIT  
COMMANDER 400 SETTINGS WHEN USING THE  
K930-1 TIG MODULE  
a. Set the OUTPUT RANGE switch to the “50-575 set-  
ting” (Fabrication and General Purpose)  
a. Set the OUTPUT RANGE switch to the 50-575 Setting  
(Fabrication and General Purpose)  
b. Set the IDLER switch to the “High “ position.  
b. Set the IDLER switch to the “Auto “ position.  
c. Set the LOCAL/REMOTE switch to the “Remote” posi-  
tion.  
c. Set the LOCAL/REMOTE switch to the “Remote” posi-  
tion.  
d. Set the WELDING TERMINALS switch to the “Welding  
Terminals Always On” position. This will close the solid  
state contactor and provide an always “hot” electrode.  
d. Set the WELDING TERMINALS switch to the “Welding  
Terminals Remotely Controlled” position. This will  
keep the solid state contactor open and provide a  
“cold” electrode until the triggering device (Amptrol or  
Arc Start Switch) is pressed.  
(Note: This is necessary because the K799 circuitry with  
respect to the #2 and #4 leads does not provide the prop-  
er signal to open and close the solid state contactor in the  
Commander).  
COMMANDER 400  
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B-9  
B-9  
OPERATION  
WIRE FEED (CONSTANT VOLTAGE) WELD-  
STICK AND WIRE MODEL CONNECTION TO  
ING  
LN-7 or LN-8  
(Stick and Wire models only)  
a. Shut the welder off.  
Connect a wire feeder to the Commander 400 and set the  
welder controls according to the instructions in “Controls  
and Settings” in this section of the manual.  
b. Connect the LN-7 or LN-8 per instructions on the  
appropriate connection diagram in “DIAGRAMS”  
section. Set the “LOCAL REMOTE” switch to  
“REMOTE” for the LN-7 and LN-8 with a K857  
remote voltage control cable attached; “LOCALfor  
LN-7 with no remote voltage control.  
The Stick and Wire model of the Commander 400 with its  
CV tap, permits it to be used with a broad range of flux  
cored wire (Innershield and Outershield) electrodes and  
solid wires for MIG (GMAW).  
c. Set the “VOLTMETER” switch to either “+” or “-” as  
required by the electrode being used.  
d. Set the “RANGE” switch to the “WIRE WELDING  
CV” position.  
e. Set the “OUTPUT CONTROLswitch to the “OUT-  
PUT REMOTELLY CONTROLLED” position.  
f. Set the “IDLE” switch to the “HIGH” position.  
For any electrodes, the procedures should be kept within  
the rating of this machine. For additional electrode infor-  
mation, see Lincoln publications N-675, GS-100 and GS-  
210.  
STICK AND WIRE MODEL CONNECTION TO  
CAUTION  
When the gun trigger is closed, the electrode is energised  
and the wire will begin to feed.  
------------------------------------------------------------------------  
LN-25  
The LN-25 with or without an external contactor may be  
used with the Commander 400 Stick and Wire model. See  
the appropriate connection diagram in “DIAGRAMS” sec-  
tion. NOTE: The LN-25 (K431) Remote Control Module  
and (K432) Remote Cable are not recommended for use  
with the Commander 400 S&W.  
STICK AND WIRE MODEL CONNECTION TO  
LN-23P  
a. Shut the welder off.  
a. Shut the welder off.  
b. Connect the LN-23P as per instructions on the  
appropriate connection diagram in “DIAGRAMS”  
section. NOTE: When connecting an LN-23P to the  
Commander Stick & Wire, a K350-1 adapter kit must  
be used. Set the “VOLTMETER” switch to either “+”  
or “-” as required by the electrode being used.  
d. Set the “RANGE” switch to “WIRE WELDING CV”  
e. Set the “OUTPUT CONTROLswitch to “WELDING  
TERMINALS ALWAYS ON” Set the “VOLTS/AMPS”  
switch to “VOLTS”  
b. For electrode Positive, connect the electrode cable  
from the LN-25 to the “+” terminal of the welder and  
work cable to the “- WIRE” terminal of the welder.  
For electrode Negative, connect the electrode cable  
from the LN-25 to the “ WIRE” terminal of the welder  
and work cable to the “+”terminal of the welder.  
c. Attach the single lead from the front of the LN-25 to  
work using the spring clip on the end of the lead.  
This is a control lead to supply current to the wire  
feeder motor; it does not carry welding current.  
d. Set the range switch to “WIRE WELDING CV”  
e. Set the “OUTPUT CONTROLswitch to “WELDING  
TERMINALS ALWAYS ON”  
g. Set the “LOCAL REMOTE” switch to the desired  
setting depending upon where the power sources  
output is being controlled from.  
h. Set the “IDLE” switch to the “AUTO” position. When  
not welding , the Commander 400 Stick and Wire  
model engine will be at the low idle speed. If you are  
using an LN-23P with the K350-1 adapter kit, the  
electrode is not energized until the gun trigger is  
closed. When the gun trigger is closed, the current  
sensing circuit will cause the Commander 400 Stick  
and Wire model engine to go to the high idle speed,  
the wire will begin to feed and the welding process  
can be started. When welding is stopped, the  
engine will revert to low idle speed after approxi-  
mately 15 seconds unless welding is resumed.  
f. Set the “VOLTS\AMPS” switch to “VOLTS”  
g. Set the “IDLE” switch to the “AUTO” position. When  
not welding , the Commander 400 S&W engine will  
be at the low idle speed. CAUTION: ( if you are  
using an LN-25 without an internal contactor, the  
electrode will be energized when the Commander  
400 Stick and Wire model is started.) If you are  
using an LN-25 with an internal contactor, the elec-  
trode is not energized until the gun trigger is closed.  
In either of the LN-25 wire feeders, when the gun  
trigger is closed, the current sensing circuit will  
cause the Commander 400 Stick and Wire model  
engine to go to the high idle speed, the wire will  
begin to feed and the welding process started.  
When welding is stopped, the engine will revert to  
low idle speed after approximately 15 seconds  
unless welding is resumed.  
STICK AND WIRE MODEL CONNECTION TO  
NA-3  
For connection diagrams and instructions for connecting  
an NA-3 Welding System to the Commander Stick & Wire,  
refer to the NA-3 Welding System instruction manual.  
COMMANDER 400  
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B-10  
B-10  
OPERATION  
The current rating of any plug used with the system  
must be at least equal to the current capacity of the  
associated receptacle.  
AUXILIARY POWER OPERATION  
Start the engine and set the IDLER control switch to  
the desired operating mode. Full power is available  
regardless of the welding control settings, if no welding  
current is being drawn..  
SIMULTANEOUS WELDING AND AUXIL-  
IARY POWER LOADS  
The auxiliary power of the Commander consists of two-  
120VAC (5-15R) duplex receptacles with GFCI protec-  
tion and one 120/240 VAC (14-50R) receptacle. The  
120/240VAC receptacle can be split for single phase  
120 VAC operation.  
It must be noted that the above auxiliary power ratings  
are with no welding load. Simultaneous welding and  
power loads are specified in table B.4. The permissible  
currents shown assume that current is being drawn  
from either the 120 VAC or 240 VAC supply (not both at  
the same time).  
The auxiliary power capacity is 10,000 watts of 60 Hz,  
single phase power. The auxiliary power capacity rat-  
ing in watts is equivalent to volt-amperes at unity power  
factor. The maximum permissible current of the 240  
VAC output is 44 A. The 240 VAC output can be split to  
provide two separate 120 VAC outputs with a maximum  
permissible current of 44 A per output to two separate  
120 VAC branch circuits. Output voltage is within  
10% at all loads up to rated capacity.  
NOTE: The 240V receptacle has two 120V outlets of  
different phases and cannot be paralleled.  
The auxiliary power receptacles should only be used  
with three wire grounded type plugs or approved dou-  
ble insulated tools with two wire plugs.  
TABLE B.4 Commander 400 Simultaneous Welding and Power  
Loads  
Permissible Auxiliary  
Current in Amperes  
Permissible  
Power - Watts  
(Unity Power  
Factor)  
Welding  
Output Range  
Setting  
Welding Output  
@120 V 10% * @ 240 V 10%  
0
0
500A/40V  
400A/36V  
270A/31V  
230A/29V  
180A/27V  
120A/25V  
90A/24V  
None  
None  
3000  
6000  
7500  
9500  
9500  
50-575  
400  
270  
230  
180  
120  
90  
0
0
28  
14  
28  
35  
44  
44  
56**  
70**  
88**  
88**  
* Each GFCI duplex receptacle is limited to 15 amps.  
** Not to exceed 44 A per 120 VAC branch circuit when splitting the 240  
VAC output.  
COMMANDER 400  
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C-1  
C-1  
ACCESSORIES  
OPTIONAL FIELD INSTALLED  
ACCESSORIES  
RECOMMENDED EQUIPMENT  
STICK  
K802R POWER PLUG KIT - Provides a plug for each  
K704 Accessory Kit which includes:  
• Electrode holder and cable.  
• Ground clamp and cable.  
• Headshield.  
receptacle.  
K857 28 ft. (8.5 m) or K857-1 100 ft. (30.4 m)  
REMOTE CONTROL - Portable control provides same  
dial range as the output control on the welder from a  
location up to the specified length from the welder. Has  
convenient plug for easy connection to the welder. The  
Commander 400 is equipped with a 6 pin connector  
for connecting the remote control and a toggle switch  
for selecting “LOCALoutput control or “REMOTE” out-  
put control.  
K857 Remote Control Kit is optional for remote cur-  
rent control.  
TIG  
Magnum TIG Torch  
Magnum Parts Kit and Argon gas  
K930-1 TIG Module (not required for scratch start  
DC TIG welding)  
K704 ACCESSORY SET - Includes 35 feet (10 m) of  
electrode cable and 30 feet (9 m) of work cable, head-  
shield, work clamp and electrode holder. Cable is  
rated at 500 amps, 60% duty cycle.  
K936-3 Control Cable  
K870 Foot Amptrol  
K953-1 TWO WHEEL TRAILER - For road, in-plant  
and yard towing. Road towing with optional fender &  
light kit. (For highway use, consult applicable federal,  
state and local laws regarding possible additional  
requirements)  
Also available:  
K812 Hand Amptrol  
K814 Arc Start Switch  
K937-22 Control Cable Extension  
K937-45 Control Cable Extension  
K844-1 Water Valve  
K953-1 Trailer  
K958-1 Ball Hitch  
K958-2 Lunette Eye Hitch  
K959-1 Fender & Light Kit  
K965-1 Cable Storage Rack  
HIGH FREQUENCY GENERATORS FOR  
TIG APPLICATIONS  
The K799 Hi-Freq Unit and the K930-1 TIG Module are  
suitable for use with the Commander 400. The  
Commander is equipped with the required R.F. bypass  
circuitry for the connection of high frequency generat-  
ing equipment. The high frequency bypass network  
supplied with the K799 Hi-Freq Unit does NOT need  
to be installed into the Commander.  
K825-1 ETHER START KIT - Provides maximum cold  
weather starting assistance for frequent starting below  
10 F (-12.2o C). Required Ether tank is not provided  
with kit.  
K899-1 SPARK ARRESTOR KIT - Easily mounts to  
standard muffler.  
The Commander and any high frequency generating  
equipment must be properly grounded. See the K799  
Hi-Freq Unit and the K930-1 TIG Module operating  
manuals for complete instructions on installation, oper-  
ation, and maintenance.  
K949-1 OIL DRAIN KIT - Includes ball valve, hose and  
clamp.  
COMMANDER 400  
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D-1  
D-1  
MAINTENANCE  
SAFETY PRECAUTIONS  
WARNING  
ENGINE MAINTENANCE  
Refer to the “Periodic Checks” section of the Engine  
Operator’s Manual for the recommended maintenance  
schedule of the following:  
•Have a qualified technician do the maintenance  
and troubleshooting work.  
a) Engine Oil and Filter  
b) Air Cleaner  
•Turn the engine off before working inside the  
machine.  
c) Fuel Filter - and Delivery System  
d) Cooling Blower Belt  
e) Battery  
•Remove guards only when necessary and replace  
them when the maintenance requiring their  
removal is complete.  
f) Cooling System  
Refer to Table D.1 at the end of this section for various  
engine maintenance components.  
•Always use the greatest care when working near  
moving parts.  
------------------------------------------------------------------------  
AIR FILTER  
Read the Safety Precautions in front of this manual and  
the engine instruction manual before working on this  
machine.  
CAUTION  
EXCESSIVE AIR FILTER RESTRICTION WILL  
RESULT IN REDUCED ENGINE LIFE.  
------------------------------------------------------------------------  
The air filter element is a dry cartridge type. It can be  
cleaned and reused; however, damaged elements  
should not be reused. Stop engine after 100 hours of  
running time and clean filter element , replace the fil-  
ter if necessary. Service air cleaner regularly accord-  
ing to Engine Operator’s Manual.  
Keep all equipment safety guards, covers and devices  
in position and in good repair. Keep hands, hair, cloth-  
ing and tools away from V-belts, gears, fans and all  
other moving parts when starting, operating or repair-  
ing the equipment.  
ROUTINE AND PERIODIC  
MAINTENANCE  
1. Locate the air filter canister located behind the  
engine door on the top of the engine.  
DAILY  
2. Remove air filter element.  
a. Check the crankcase oil level .  
3. Remove loose dirt from element with compressed  
air or water hose directed from inside out.  
b. Refill the fuel tank to minimize moisture condensa-  
tion in the tank.  
Compressed Air: 100 psi maximum with nozzles at  
least one inch away from element.  
c. Open the water drain valve located on the bottom of  
the water separator element 1 or 2 turns and allow to  
drain into a container suitable for diesel fuel for 2 to  
3 seconds. Repeat the above drainage procedure  
until diesel fuel is detected in the container.  
Water Hose:  
40 psi maximum without nozzle.  
4. Soak element in a mild detergent solution for 15 min-  
utes. Do not soak more than 24 hours. Swish ele-  
ment around in the solution to help remove dirt.  
WEEKLY  
5. Rinse elements from inside out with a gentle stream  
of water (less than 40 psi) to remove all suds and  
dirt.  
Blow out the machine with low pressure air periodical-  
ly. In particularly dirty locations, this may be required  
once a week.  
6.Dry element before reuse with warm air at less than  
160o F (71o C). Do not use a light bulb to dry the ele-  
ment.  
COMMANDER 400  
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D-2  
D-2  
MAINTENANCE  
7. Inspect for holes and tears by looking through the  
element toward a bright light. Check for damaged gas-  
kets or dented metal parts. Do not reuse damaged ele-  
ments. Protect element from dust and damage during  
drying and storage.  
3. Remove the large white volume plug located direct-  
ly under the center cap in the upper cavity of the fil-  
ter header. Use a small screwdriver (or similar  
device) to lift the plug part way out of the cavity to  
assist with its removal.  
8. Reinstall air filter element.  
Be careful not to damage the pre-filter screen with  
the tool used to remove the plug.  
After six cleanings replace air filter. A cleaned filter will  
have approximately 70% of the life of a new filter ele-  
ment. A restricted filter element may not appear exces-  
sively dirty.  
4. Using a pair of pliers, gently tug on the pull tabs of  
the pre-filter screen in an alternating pattern to  
gradually remove the pre-filter screen.  
5. Brush off any debris and rinse in diesel fuel.  
FUEL FILTERS  
6. Re-install the pre-filter screen into the upper cavity  
of the filter header making sure the four pull tabs  
are pointing up. Putting your fingers on the pull tabs,  
push down evenly until the lower body of the pre-fil-  
ter screen contacts the floor of the upper cavity.  
WARNING  
When working on the fuel system  
• Keep naked lights away, do not smoke !  
• Do not spill fuel !  
7. Re-insert the large white volume plug into the upper  
cavity.  
8. Place the O-ring onto the angled seal surface of the  
filter header and re-install the plastic cap. Make sure  
its flange rests on the O-ring.  
------------------------------------------------------------------------  
The Commander 400 is equipped with a Fuel Pre-  
Filter/Water Separator Assembly located before the  
lift pump and a Secondary Fuel Filter located after the  
lift pump and before the fuel injectors. The Fuel Pre-  
Filter/Water Separator is mounted to the engine block  
just below the lift pump. The Secondary Fuel Filter is  
mounted directly to the engine just above the oil filter.  
9. Screw on the cap ring and tighten hand tight.  
10. Remember to open the fuel shutoff valve (Lever in  
line with the hose) before starting the engine.  
WATER SEPARATOR ELEMENT  
The water separator element is a two stage filter with a  
special filtration/water separating media, and an  
expanded water reservoir providing maximum protec-  
tion against water in the fuel. The recommended  
change interval for the water separator element is  
1,000 hours. The procedure for changing the element  
is as follows:  
FUEL PRE-FILTER/WATER SEPARATOR ASSEM-  
BLY  
The pre-filter is a 150 micron screen designed to pro-  
tect against gross fuel contamination of the water sep-  
arator element and the Secondary Fuel Filter. If the  
pre-filter becomes plugged it may be removed, inspect-  
ed, cleaned and reinstalled. In general this only needs  
to be done with each water separator element change  
(about every 1,000 hrs.) However if at any time exces-  
sive fuel contamination is suspected or a sudden fall-  
off in engine performance is detected the pre-filter  
screen should be inspected and cleaned. Follow the  
following procedure:  
1. Close the fuel shutoff valve (Lever should be per-  
pendicular to the hose) located on the side of the  
Fuel Pre-Filter/Water Separator Assembly.  
2. Rotate the quick change ring (located just below fil-  
ter header) clockwise approximately 1/2 turn and  
slide it down and off of the element.  
1. Close the fuel shutoff valve (Lever should be per-  
pendicular to the hose) located on the side of the  
Fuel Pre-Filter/Water Separator Assembly.  
3. Grasp the element and pull down with a slight rock-  
ing motion to remove the element from the grommet  
post on the bottom of the filter header.  
2. Unscrew the cap ring located on the top of the filter  
header and remove the plastic center cap and O-  
ring.  
COMMANDER 400  
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D-3  
D-3  
MAINTENANCE  
4. Slide the new element onto the grommet post on the  
bottom of the filter header until the element no longer  
easily moves up into the filter header. Now rotate the  
element (may take almost 1 full turn) with a slight  
upward pressure until the element begins to further  
engage the header. With the proper orientation now  
established apply additional pressure to seat the ele-  
ment in the filter header. You should feel the element  
“pop” into place when properly seated.  
6. Remove the old cooling blower belt and install a new  
one.  
7. Adjust the cold belt tension to 63-73 lbs. midway  
between any two pulleys.  
8. Reinstall the engine end panel. Reattach the negative  
battery cable. Slide in and refasten the battery holder.  
9. Check the cooling blower belt tension after 100 hours  
of operation. (Follow steps 1,2,3,4,7 & 8)  
Note:The element will only go on one way. Never use  
excessive force when mounting the element to the  
header.  
5. Slide the quick change ring up over the element and  
rotate counter clockwise until an audible click or pop  
is heard. If you do not hear the click you have not rotat-  
ed the ring far enough and the element is not in the  
locked position. Another indication that the ring is in  
the locked position is that one set (it doesn’t matter  
which one) of arrows located on the outside of the ring  
should be located directly under the air vent valve.  
BATTERY HANDLING  
WARNING  
GASES FROM BATTERY can explode.  
• Keep sparks, flame and cigarettes away from bat-  
tery.  
To prevent EXPLOSION when:  
• INSTALLING A NEW BATTERY - disconnect nega-  
tive cable from old battery first and connect to new  
battery last.  
6. Open the fuel shutoff valve (lever in line with the hose).  
7. Open the air vent valve on the front of the filter header  
until fuel emerges free of air bubbles and then close  
the air vent valve.  
• CONNECTING A BATTERY CHARGER - Remove bat-  
tery from welder by disconnecting negative cable  
first, then positive cable and battery clamp. When  
reinstalling, connect negative cable last. Keep well  
ventilated.  
Note : Consult your engine operation manual for informa-  
tion on air -bleeding the entire fuel system.  
• USING A BOOSTER - connect positive lead to bat-  
tery first then connect negative lead to engine foot.  
SECONDARY FUEL FILTER  
BATTERY ACID CAN BURN EYES AND SKIN.  
• Wear gloves and eye protection and be careful when  
working near battery. Follow instructions printed on  
battery.  
The Secondary Fuel Filter is a spin on cartridge type  
mount directly to the engine. Consult your engine opera-  
tion manual for complete information on service intervals  
and element changing procedures.  
-------------------------------------------------------  
-----------------  
PREVENTING ELECTRICAL DAMAGE  
COOLING SYSTEM  
The cooling system of the Deutz engine needs to be  
checked and cleaned periodically. Consult the engine  
owners manual for the proper frequency and procedure.  
1. When replacing, jumping, or otherwise connecting the  
battery to the battery cables, the proper polarity must be  
observed. Failure to observe the proper polarity could  
result in damage to the charging circuit. The positive (+)  
battery cable has a red terminal cover.  
COOLING BLOWER BELT  
The following procedure should be followed to replace the  
cooling blower belt:  
2. If the battery requires charging from an external charg-  
er, disconnect the negative battery cable first and then the  
positive battery cable before attaching the charger leads.  
Failure to do so can result in damage to the internal  
charger components. When reconnecting the cables,  
connect the positive cable first and the negative cable  
last.  
1. Allow machine to cool.  
2. Unfasten and slide the battery holder out from the  
welder.  
PREVENTING BATTERY DISCHARGE  
3. Disconnect the negative battery cable.  
If you have an ignition switch, turn it off when engine is  
not running.  
4. Remove the engine end panel for access to the  
engine.  
5. Loosen the alternator mounting bolts and rotate the  
alternator towards the engine.  
PREVENTING BATTERY BUCKLING  
Tighten nuts on battery clamp until snug.  
COMMANDER 400  
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D-4  
D-4  
MAINTENANCE  
Table D.1 Engine Maintenance Components  
MAKE  
ITEM  
PART NUMBER  
Air Cleaner Element  
Donaldson  
AC  
P181052  
A302C  
Cooling Blower Belt  
Oil Filter Element  
Lincoln  
Gates  
T13536-3  
7585  
Deutz  
Purolator  
Napa  
1174418  
PER2168  
1820  
Fram  
PH3776  
Fuel Filter Element  
Deutz  
Purolator  
Napa  
1174423  
PC42  
3358  
Fram  
P4102  
Water Separator Element  
Fuel Pre-Filter Screen  
Battery  
Lincoln  
M16890-C  
31572  
Stanadyne  
Lincoln  
Stanadyne  
M16890-B  
29575  
BCI  
Group  
34  
COMMANDER 400  
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E-1  
E-1  
TROUBLESHOOTING  
HOW TO USE TROUBLESHOOTING GUIDE  
WARNING  
Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.  
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 and to avoid  
Electrical Shock, please observe all safety notes and precautions detailed throughout this  
manual.  
__________________________________________________________________________  
This Troubleshooting Guide is provided to  
help you locate and repair possible machine  
malfunctions. Simply follow the three-step  
procedure listed below.  
Step 1. LOCATE PROBLEM (SYMPTOM).  
Look under the column labeled “PROBLEM  
(SYMPTOMS)”. This column describes pos-  
sible symptoms that the machine may exhib-  
it. Find the listing that best describes the  
symptom that the machine is exhibiting.  
Symptoms are grouped into the following  
categories: engine problems, function prob-  
lems and output problems.  
Step 3. RECOMMENDED COURSE OF  
ACTION  
If you have exhausted all of the items in step  
2. Contact your Local Lincoln Authorized  
Field Service Facility.  
Step 2. PERFORM EXTERNAL TESTS.  
The second column labeled “POSSIBLE  
AREAS OF MISADJUSTMENT(S)” lists the  
obvious external possibilities that may con-  
tribute to the machine symptom. Perform  
these tests/checks in the order listed. In  
general, these tests can be conducted with-  
out removing the case wrap-around cover.  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local  
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
COMMANDER 400  
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E-2  
E-2  
TROUBLESHOOTING  
Observe all Safety Guidelines detailed throughout this manual  
PROBLEMS  
(SYMPTOMS)  
POSSIBLE AREAS OF  
MISADJUSTMENTS(S)  
RECOMMENDED  
COURSE OF ACTION  
ENGINE PROBLEMS  
Major Physical or Electrical Damage 1. Contact your Local Lincoln  
is Evident.  
Authorized Field Service Facility.  
Engine will not “crank”.  
1. Battery is low. Charge Battery.  
2. Loose battery cable connections.  
Inspect, clean and tighten.  
Engine will “crank” but not start.  
1. Out of fuel. Fill prime tank.  
2. Fuel shut off valve is in off  
position.  
3. High oil temperature (Indicator  
light lit. Check engine cooling  
system. (Consult engine service  
dealer.  
Contact your Local Lincoln Authorized  
Field Service Facility for technical  
troubleshooting assistance.  
4. Low battery voltage.  
Engine shuts down shortly after  
starting.  
1. Low fuel. (Indicator light lit) Add  
fuel.  
2. Low output of battery charging  
alternator. (Indicator light lit)  
Check cooling blower belt. Replace  
if neccessary.  
3. High oil temperature (Indicator  
light lit). Check engine cooling  
system. (Consult engine service  
dealer.  
Battery does not stay charged.  
1. Faulty battery. Replace  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local  
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
COMMANDER 400  
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E-3  
E-3  
TROUBLESHOOTING  
Observe all Safety Guidelines detailed throughout this manual  
PROBLEMS  
(SYMPTOMS)  
POSSIBLE AREAS OF  
MISADJUSTMENTS(S)  
RECOMMENDED  
COURSE OF ACTION  
FUNCTION PROBLEMS  
Engine will not idle down to low  
speed.  
1. Idler switch in High idle position.  
Set switch to Auto.  
2. External load on welder or auxil-  
iary power. Remove all external  
loads.  
Engine will not go to high idle when 1. Poor work lead connection to  
attempting to weld.  
work. Make sure work clamp is  
tightly connected to clean base  
metal.  
2. ”Welding Terminals” switch is in  
wrong position. Set to “Always  
On” when welding without a weld-  
ing terminal control cable. Refer  
to Operations chapter for proper  
use of this switch.  
Contact your Local Lincoln Authorized  
Field Service Facility for technical  
troubleshooting assistance.  
Engine will not go to high idle when 1. Auxiliary power load is less than  
using auxiliary power.  
100 watts. Idler may not respond  
with less than a 100 watt load.  
Set Idler to “High”  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local  
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
COMMANDER 400  
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E-4  
E-4  
TROUBLESHOOTING  
Observe all Safety Guidelines detailed throughout this manual  
PROBLEMS  
(SYMPTOMS)  
POSSIBLE AREAS OF  
MISADJUSTMENTS(S)  
RECOMMENDED  
COURSE OF ACTION  
OUTPUT PROBLEMS  
No welding power output.  
1. Welding terminals switch in wrong  
position. Place switch in “Always  
On” position when welding without  
welding terminal control cable.  
Refer to Operation chapter for  
proper switch function.  
Welder has output and no control.  
1. Local/Remote switch is in wrong  
position. Place switch in Local  
position to control output at  
welder. Place switch in Remote  
position to control output remotely.  
Refer to Operation chapter for  
proper switch function.  
2. Poor remote kit connection.  
Check connections.  
3. Faulty remote kit. Replace if nec-  
cessary.  
Contact your Local Lincoln Authorized  
Field Service Facility for technical  
troubleshooting assistance.  
No auxiliary power.  
1. Open circuit breakers. Reset  
breakers. If breakers keep trip-  
ping check connections to auxil-  
iary receptacles. Also make sure  
load does not exceed receptacles  
current rating. Refer to Auxiliary  
Connections in the Installation  
and Operation chapters.  
2. Faulty connections to auxiliary  
receptacles. Check connections.  
3. GFCI tripped. Clear any ground  
fault and reset GFCI circuit by  
pressing “Reset” button on the  
120 V receptacle.  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local  
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
COMMANDER 400  
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F-1  
F-1  
DIAGRAMS  
WIRING DIAGRAM:  
2 2 3  
2 0 4  
2 6 1  
2 6 0  
+
+
C O N T R O L H A R N E S S  
1
2
3
4
5
6
+
J 6 0  
+
+
B L A C K  
B L A C K  
B L A C K  
B L A C K  
G R E E N  
G R E E N  
G R E E N  
B L A C K  
W H I T E  
COMMANDER 400  
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F-2  
F-2  
DIAGRAMS  
WIRING DIAGRAM:  
2 2 3  
2 0 4  
2 6 1  
2 6 0  
3 0 0 W  
R 3 - 1 2  
R 2 - 1 2  
10  
1
2
3
6
9
4
5
7
8
1
2
4
5
6
3
R 1 - 5 0  
1 0 0  
W
+
+
+
+
+
B L A C K  
B L A C K  
B L A C K  
W H I T E  
B L A C K  
G R E E N  
G R E E N  
G R E E N  
B L A C K  
COMMANDER 400  
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F-3  
F-3  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-4  
F-4  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-5  
F-5  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-6  
F-6  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-7  
F-7  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-8  
F-8  
DIAGRAMS  
CONNECTION DIAGRAM:  
}
COMMANDER 400  
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F-9  
F-9  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-10  
F-10  
DIAGRAMS  
CONNECTION DIAGRAM:  
COMMANDER 400  
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F-11  
F-11  
DIAGRAMS  
DIMENSION PRINT  
COMMANDER 400  
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F-12  
F-12  
NOTES  
COMMANDER 400  
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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  
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The hardbound book contains over 750 pages of welding infor-  
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The book contains the latest information and application  
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Symbols. Detailed discussion tells how engineers and drafts-  
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For details write:  
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Practical exercises and examples develop the reader’s ability  
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and ask for bulletin ED-80 or call 216-383-2259 and ask for the  
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187 pages with more than 100 illustrations. Size 8-1/2” x 11”  
Durable, cloth-covered board binding.  
Lincoln Welding School  
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Do not touch electrically live parts or Keep flammable materials away.  
Wear eye, ear and body protection.  
electrode with skin or wet clothing.  
Insulate yourself from work and  
ground.  
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 moja-  
da.  
Aislese del trabajo y de la tierra.  
fuera del área de trabajo.  
cuerpo.  
AVISO DE  
PRECAUCION  
French  
Ne laissez ni la peau ni des vête-  
ments mouillés entrer en contact  
avec des pièces sous tension.  
Gardez à lécart de tout matériel  
inflammable.  
Protégez vos yeux, vos oreilles et  
votre corps.  
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 elec-  
trodos com a pele ou roupa molha-  
da.  
Mantenha inflamáveis bem guarda- Use proteção para a vista, ouvido e  
dos.  
corpo.  
ATENÇÃO  
Isole-se da peça e terra.  
Japanese  
Chinese  
Korean  
Arabic  
READ AND UNDERSTAND THE MANUFACTURERS INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO  
BE USED AND FOLLOW YOUR EMPLOYERS 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 HER-  
STELLERS. 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 res-  
piración.  
Mantenga la cabeza fuera de los  
humos. Utilice ventilación o  
aspiración para gases.  
Desconectar el cable de ali-  
mentación de poder de la máquina  
antes de iniciar cualquier servicio.  
No operar con panel abierto o  
guardas quitadas.  
AVISO DE  
PRECAUCION  
French  
Débranchez le courant avant lentre- Nopérez pas avec les panneaux  
tien.  
Gardez la tête à l’écart des fumées.  
Utilisez un ventilateur ou un aspira-  
teur pour ôter les fumées des zones  
de travail.  
ouverts ou avec les dispositifs de  
protection enlevés.  
ATTENTION  
German  
Strom vor Wartungsarbeiten  
abschalten! (Netzstrom völlig öff-  
nen; Maschine anhalten!)  
Anlage nie ohne Schutzgehäuse  
oder Innenschutzverkleidung in  
Betrieb setzen!  
Vermeiden Sie das Einatmen von  
Schweibrauch!  
Sorgen Sie für gute Be- und  
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WARNUNG  
Portuguese  
Não opere com as tampas removidas.  
Desligue a corrente antes de fazer  
serviço.  
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.  
ATENÇÃO  
Não toque as partes elétricas nuas.  
Japanese  
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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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LIMITED WARRANTY  
STATEMENT OF LIMITED WARRANTY  
CONDITIONS OF WARRANTY  
The Lincoln Electric Company (Lincoln) warrants to the end  
user (purchaser) of all new welding and cutting equipment,  
electrode and flux (collectively called the “Goods”) that it will  
be free of defects in workmanship and material.  
TO OBTAIN WARRANTY COVERAGE:  
The purchaser must contact Lincoln or Lincoln’s Authorized  
Service Facility about any defect claimed under Lincoln’s  
warranty.  
This warranty is void if Lincoln or its Authorized Service  
Facility finds that the equipment has been subjected to  
improper installation, improper care or abnormal opera-  
tions.  
Determination of warranty on welding and cutting equipment  
will be made by Lincoln or Lincoln’s Authorized Service  
Facility.  
(2) (3)  
WARRANTY PERIOD (1)  
Lincoln will assume both the parts and labor expense of  
correcting defects during the full warranty period. All war-  
ranty periods date from the date of purchase to the original  
end user and are as follows:  
WARRANTY REPAIR:  
If Lincoln or Lincoln’s Authorized Service Facility confirms  
the existence of a defect covered by this warranty, the defect  
will be corrected by repair or replacement at Lincoln’s  
option.  
7 Years  
• Main power rectifiers on all non-inverter low frequency (50  
and 60 Hz) type welders.  
At Lincoln’s request, the purchaser must return, to Lincoln or  
its Authorized Service Facility, any “Goods” claimed defec-  
tive under Lincoln’s warranty.  
3 Years  
• All Lincoln welding machines, wirefeeders and plasma  
cutting machines unless listed below.  
FREIGHT COSTS:  
The purchaser is responsible for shipment to and from the  
Lincoln Authorized Service Facility.  
2 Years  
• Power Arc 5000  
Ranger 10, Ranger 10-LX  
Weldanpower 125, Weldanpower 150  
WARRANTY LIMITATIONS  
1 Year  
• AC-100  
Lincoln will not accept responsibility or liability for repairs  
made outside of a Lincoln Authorized Service Facility.  
Invertec V100-S, Invertec V130-S, Invertec V200-T  
Power Arc 4000  
Pro-Cut 20  
Lincoln’s liability under this warranty shall not exceed the  
cost of correcting the defect of the Lincoln product.  
• All water coolers (internal or external models)  
• All stick electrode, welding wire and flux.  
Lincoln will not be liable for incidental or consequential dam-  
ages (such as loss of business, etc.) caused by the defect  
or the time involved to correct the defect.  
• Arc welding and cutting robots and robotic controllers  
• All Environmental Systems equipment, including portable  
units, central units, gun and cable assemblies and acces-  
sories. (Does not include consumable items listed under  
30 day warranty.)  
This written warranty is the only express warranty provided  
by Lincoln with respect to its products. Warranties implied  
by law such as the warranty of merchantability are limited to  
the duration of this limited warranty for the equipment  
involved.  
• All welding and cutting accessories including gun and  
cable assemblies, TIG and plasma torches, spool guns,  
wire feed modules, undercarriages, field installed options  
that are sold separately, unattached options, welding sup-  
plies, standard accessory sets, replacement parts, and  
Magnum products. (Does not include expendable parts  
listed under 30 day warranty)  
This warranty gives the purchaser specific legal rights. The  
purchaser may also have other rights which vary from state  
to state.  
30 Days  
(1)  
Equipment manufactured for the Lincoln Electric Company is subject to the  
warranty period of the original manufacturer.  
• All consumable items that may be used with the environ-  
mental systems described above. This includes hoses, fil-  
ters, belts and hose adapters.  
(2)  
All engines and engine accessories are warranted by the engine or engine  
accessory manufacturer and are not covered by this warranty.  
• Expendable Parts - Lincoln is not responsible for the  
replacement of any expendable part that is required due  
to normal wear.  
(3)  
SAE400 WELD N’ AIR compressor is warranted by the compressor manu-  
facturer and not covered by this warranty.  
Dec, ‘97  
World's Leader in Welding and Cutting Products  
Premier Manufacturer of Industrial Motors  
• 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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