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IM10043-A
®
November, 2010
RANGER 305LPG
For use with machines having Code Numbers:
11677, 11739
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 READ-
ING THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.
OPERATOR’SꢀMANUAL
Copyright © Lincoln Global Inc.
• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEBꢀSITE: www. lincolnelectric. com
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SAFETY
ARC RAYS can burn.
ELECTRIC SHOCK can
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.
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.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.
fumes and gases. When welding, keep
your head out of the fume. Use enough
ventilation and/or exhaust at the arc to keep
• AC Welder with Reduced Voltage Control.
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 within applicable OSHA PEL and
ACGIH TLV limits using local exhaust or mechanical
ventilation. In confined spaces or in some circum-
stances, outdoors, a respirator may be required.
Additional precautions are also required when welding
on galvanized steel.
3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic
welding gun are also electrically “hot”.
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. The operation of welding fume control equipment is affected
by various factors including proper use and positioning of
the equipment, maintenance of the equipment and the spe-
cific welding procedure and application involved. Worker
exposure level should be checked upon installation and
periodically thereafter to be certain it is within applicable
OSHA PEL and ACGIH TLV limits.
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. 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 prod-
ucts.
3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.
3.j. Also see Items 6.c. and 8.
5.d. 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.
5.e. 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.
5.f. Also see item 1.b.
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SAFETY
WELDING and CUTTING
CYLINDER may explode
if damaged.
SPARKS can
cause fire or explosion.
7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
6.a. Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
the welding sparks from starting a fire.
process used and properly operating
regulators designed for the gas and
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.
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.
•A safe distance from arc welding or cutting operations and
any other source of heat, sparks, or flame.
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.
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 cir-
cuits. 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.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
6.h. Also see item 1.c.
6.I. Read and follow NFPA 51B “ Standard for Fire Prevention
During Welding, Cutting and Other Hot Work”, available
from NFPA, 1 Batterymarch Park, PO box 9101, Quincy, Ma
022690-9101.
6.j. Do not use a welding power source for pipe thawing.
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SAFETY
PRÉCAUTIONS DE SÛRETÉ
6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.
Pour votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans ce
manuel aussi bien que les précautions de sûreté générales suiv-
antes:
7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
Sûreté Pour Soudage A L’Arc
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 lev-
age, 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.
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une grande
partie du corps peut être en contact avec la masse.
c. Maintenir le porte-électrode, la pince de masse, le câble
de soudage et la machine à souder en bon et sûr état
defonctionnement.
9. Assurer une ventilation suffisante dans la zone de soudage.
Ceci est particuliérement important pour le soudage de tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant
d’opérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs
du solvant pour produire du phosgéne (gas fortement toxique)
ou autres produits irritants.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à souder
parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.
11. Pour obtenir de plus amples renseignements sur la sûreté,
voir le code “Code for safety in welding and cutting” CSA
Standard W 117.2-1974.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.
2. Dans le cas de travail au dessus du niveau du sol, se protéger
contre les chutes dans le cas ou on recoit un choc. Ne jamais
enrouler le câble-électrode autour de n’importe quelle partie
du corps.
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.
2. Autant que possible, I’installation et l’entretien du poste seront
effectués par un électricien qualifié.
c. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables.
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.
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For selecting a QUALITY product by Lincoln Electric. We want
you to take pride in operating this Lincoln Electric Company prod-
uct ••• as much pride as we have in bringing this product to you!
Thank You
CUSTOMER ASSISTANCE POLICY
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip-
ment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln
Electric for advice or information about their use of our products. We respond to our customers based on the best information in our posses-
sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor-
mation or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose,
with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or
correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any
warranty with respect to the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control
of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in
applying these types of fabrication methods and service requirements.
com for any updated information.
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.
Product _________________________________________________________________________________
Model Number ___________________________________________________________________________
Code Number or Date Code_________________________________________________________________
Serial Number____________________________________________________________________________
Date Purchased___________________________________________________________________________
Where Purchased_________________________________________________________________________
Whenever you request replacement parts or information on this equipment, always supply the information you
have recorded above. The code number is especially important when identifying the correct replacement parts.
On-Line Product Registration
- Register your machine with Lincoln Electric either via fax or over the Internet.
• For fazing: Complete the form on the back of the warranty statement included in the literature packet
Accompanying this machine and fax the form per the instructions printed on it.
• For On-Line Registration: Go to our WEbꢀSITE at www. lincolnelectric.Com. Choose “Quick Links” and then
“Product Registration”. Please complete the form and submit your registration.
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
Installation.......................................................................................................................Section A
Technical Specifications.......................................................................................................A-1
Machine Specifications ........................................................................................................A-2
Safety Precautions........................................................................................................A-3
Location and Ventilation................................................................................................A-3
Stacking ........................................................................................................................A-3
Angle of Operation ........................................................................................................A-3
Lifting.............................................................................................................................A-3
Additional Safety Precautions .......................................................................................A-3
High Altitude Operation.................................................................................................A-3
High Temperature Operation ........................................................................................A-3
Towing...........................................................................................................................A-3
Vehicle Mounting...........................................................................................................A-4
Pre-Operation Engine Service..............................................................................................A-4
Fuel ...............................................................................................................................A-4
Oil..................................................................................................................................A-5
Engine Coolant..............................................................................................................A-5
Battery Connections......................................................................................................A-5
Muffler Outlet Pipe ........................................................................................................A-5
Spark Arrester...............................................................................................................A-5
High Frequency Generators for Tig Applications ..........................................................A-5
Remote Control.............................................................................................................A-5
Electrical Connections..........................................................................................................A-5
Machine Grounding.......................................................................................................A-5
Welding Terminals ........................................................................................................A-6
Welding Output Cables .................................................................................................A-6
Cable Installation...........................................................................................................A-6
Electrical Device Used with the Ranger 305LPG.................................................................A-7
Auxiliary Power Receptacles and Plugs...............................................................................A-8
Standby Power Connections................................................................................................A-8
Premises Wiring...................................................................................................................A-9
Connection of Lincoln Electric Wire Feeders.............................................................A-10,A-11
________________________________________________________________________________
Operation.........................................................................................................................Section b
Safety Precautions ..............................................................................................................B-1
General Description..............................................................................................................B-1
For Auxiliary Power ..............................................................................................................B-1
Engine Operation..................................................................................................................B-1
Welder Controls....................................................................................................................B-2
Engine Controls....................................................................................................................B-3
Starting and Stopping the Engine .................................................................................B-3
Stopping .......................................................................................................................B-4
Welding Operation................................................................................................................B-4
Duty Cycle.....................................................................................................................B-4
DC Stick Welding ..........................................................................................................B-4
Constant Current (Stick) Welding..................................................................................B-4
Downhill Pipe Welding ..................................................................................................B-4
Fuel Consumption.........................................................................................................B-4
Tig Welding ...................................................................................................................B-5
Typical Current Ranges for Tungsten Electrodes .........................................................B-5
Wire Welding-CV...........................................................................................................B-5
Arc Gouging ..................................................................................................................B-6
Auxiliary Power .............................................................................................................B-6
Simultaneous Welding and Auxiliary Power Loads.......................................................B-6
Extension Cord Recommendations...............................................................................B-6
________________________________________________________________________________
Accessories.....................................................................................................Section C
Options / Accessories and Compatible Lincoln Equipment.................................................C-1
________________________________________________________________________________
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TAbLE OF CONTENTS
Maintenance......................................................................................................Section D
Safety Precautions ................................................................................................D-1
Routine Maintenance ............................................................................................D-1
Kohler Engine........................................................................................................D-1
Engine Maintenance Components ........................................................................D-1
Engine Oil Change..........................................................................................D-2
Engine Oil Refill Capacities.............................................................................D-2
Oil Filter Change.............................................................................................D-2
Air Cleaner Service.........................................................................................D-2
Air Pre-Cleaner Service ..................................................................................D-2
Air Filter Paper Element ........................................................................................D-3
Spark Plug ......................................................................................................D-3
Spark Plug Service .........................................................................................D-3
Engine Adjustment..........................................................................................D-4
Battery Maintenance .......................................................................................D-4
Servicing Optional Spark Arrestor ...................................................................D-4
Welder / Generator Maintenance ........................................................................D-5
Storage ...........................................................................................................D-5
Cleaning..........................................................................................................D-5
Brush Removal and Replacement ..................................................................D-5
________________________________________________________________________
Troubleshooting..............................................................................................Section E
How to Use Troubleshooting Guide.........................................................E-1 thru E-5
________________________________________________________________________
Diagrams and Dimension Print ......................................................................Section F
Parts List ................................................................................................................P-649
________________________________________________________________________
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A-1
A-1
INSTALLATION
TECHNICAL SPECIFICATIONS - RANGER® 305LPG (K2937-1)
INPUT - LPG ENGINE
Make/Model Description Horsepower Operating Displacement cu.in.(cu.cm)
bore x Stroke in.(mm)
Starting
Capacities
System
@ 3600 RPM Speed
12VDC Battery
and Starter
High
3700RPM
Fuel: LPG
Cylinder
Kohler
CH730S
OHV
2 Cylinder
4 Cycle
Air Cooled
LPG
25 HP
Full Load
3500RPM
Low Idle
44 (725)
3.27 x 2.64 (83x67)
Push Button
Starter
Oil 2.0Qts.
(1.9L)
Engine
2400RPM
Group 58 Battery
(435 cold
crank amps
RATED OUTPUT @ 104° F (40° C) - WELDER
Duty Cycle Max.
Welding Output
CC STICK DC Output
CC STICK Output Range
PIPE DC Output
PIPE Output Range
TIG Output Range
CV WIRE DC Output
CV WIRE Output Range
Volts at Rated Amps
25 Volts @ 300 Amps
30 to 305 Amps
OCV @ 3700 RPM
100%
-------
25 Volts @ 300 Amps
40 to 300 Amps
20 to 250 Amps
25 Volts @ 300 Amps
14 to 29 volts
100%
-------
-------
100%
-------
60 Volts
.
RATED OUTPUT @ 104° F (40° C) - GENERATOR
Auxiliary Power 1
10,000 Watts Peak, 9000 Watts Continuous, 60 Hz
120/240 Volts
PHYSICAL DIMENSIONS
DEPTH
HEIGHT
WIDTH
WEIGHT
30.00** in.
21.50 in
42.25 in.
480 lbs.
(218Kg)
762.0 mm
546.0 mm
1073.0 mm
** Top of enclosure, add 6.0”(152mm) for exhaust
ENGINE COMPONENTS
LUbRICATION
Full Pressure
With Full Flow Filter
VALVE LIFTERS
Hydraulic
FUEL SYSTEM
LPG Regulator and Vaporizer
GOVERNOR
Mechanical Governor
5% Regulation
AIR CLEANER
ENGINE IDLER
MUFFLER
ENGINE PROTECTION
Shutdown on low oil
pressure.
Low noise Muffler: Top outlet
can be rotated. Made from
Long life, aluminized steel.
Dual Element
Automatic Idler
ENGINE WARRANTY: 2 year unlimited hours (See engine manufacturer warranty for details.) Kohler
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.
RANGER® 305LPG
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A-2
INSTALLATION
MACHINE SPECIFICATIONS - RANGER® 305LPG (K2937-1)
A-2
RECEPTACLES AND CIRCUIT bREAKERS
RECEPTACLES
AUXILIARY POWER CIRCUIT bREAKER OTHER CIRCUIT bREAKERS
(2) 120VAC Duplex GFCI(5-20R) Two 20AMP for Two Duplex Receptacle
(1) 120/240VAC Dual Voltage
Full KVA (14-50R)
20AMP for Battery Charging Circuit
15AMP for 42V Wire Feeder Power
One 50AMP for Dual Voltage (2-pole)
RANGER® 305LPG
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A-3
A-3
INSTALLATION
SAFETY PRECAUTIONS
WARNING
Do not attempt to use this equipment until you
have thoroughly read the engine manufacturer’s
manual supplied with your welder. It includes
important safety precautions, detailed engine
starting, operating and maintenance instructions,
and parts lists.
ADDITIONAL SAFETY PRECAUTIONS
WARNING
• Lift only with equipment of
adequate lifting capacity.
• be sure machine is stable
when lifting.
• Do not lift this machine using
lift bale if it is equipped with a
heavy accessory such as trail-
er or gas cylinder.
------------------------------------------------------------------------
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts
or electrode with skin or wet cloth-
ing.
• Insulate yourself from work and
ground
FALLING
• Do not lift machine if lift bale
is
EQUIPMENT can damaged.
Cause injury. • Do not operate machine while
Suspended from lift bale.
• Always wear dry insulating gloves.
-----------------------------------------------------------------------
ENGINEꢀEXHAUSTꢀcan kill.
• Use in open, well ventilated areas or
vent exhaust outside.
------------------------------------------------------------------------
------------------------------------------------------------------------
MOVING PARTSꢀcan injure.
HIGH ALTITUDE OPERATION
The RANGER® 305LPG requires no adjustments for
High Altitude.
• Do not operate with doors open or
guards off.
• Stop engine before servicing.
• Keep away from moving parts.
CAUTION
------------------------------------------------------------------------
See additional warning information at
front of this operator’s manual.
Do not operate with a high altitude jet installed at
altitudes below 5000 ft. This will result in the
engine running too lean and result in higher
engine operating temperatures which can shorten
engine life.
Only qualified personnel should install,
Use, or service this equipment.
------------------------------------------------------------------------
HIGH TEMPERATURE OPERATION
LOCATION AND VENTILATION
At temperatures above 40°C(104°F), Welder output de-rating is
necessary. For maximum output ratings, de-rate the welder output 2
volts for every 10°C(50°F) above 40°C(104°F).
The welder should be located to provide an unrestrict-
ed 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.
TOWING
The recommended trailer for use with this equipment for road, in-
plant and yard towing by a vehicle(1) is Lincoln’s K957-1. 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 con-
sidered are as follows:
STACKING
RANGER® 305LPG machines cannot be stacked.
ANGLE OF OPERATION
Engines are designed to run in the level condition
which is where the optimum performance is achieved.
The maximum angle of continuous operation is 15
degrees in any direction. If the engine is to be operat-
ed 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 12
gallons.
1. Design capacity of trailer vs. Weight of Lincoln equipment and
likely additional attachments.
2. Proper support of, and attachment to, the base of the welding
equipment so there will be no undue stress to the framework.
3. Proper placement of the equipment on the trailer to insure stabili-
ty side to side and front to back when being moved and when
standing by itself while being operated or serviced.
4. Typical conditions of use, i.e., travel speed; roughness of surface
on which the trailer will be operated; environmental conditions;
like maintenance.
LIFTING
(1)
5. Conformance with federal, state and local laws.
The RANGER® 305LPG weighs approximately 480
lbs. A lift bail is mounted to the machine and should
always be used when lifting the machine.
(1)
Consult applicable federal, state and local laws regarding spe-
cific requirements for use on public highways.
RANGER® 305LPG
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A-4
A-4
INSTALLATION
VEHICLE MOUNTING
CAUTION
WARNING
be certain that the cylinder valve is CLOSED before
attempting to attach the fuel supply hose coupler to
the cylinder. Connect the coupler to the fuel cylinder
Improperly mounted concentrated loads may
cause unstable vehicle handling and tires or other
components to fail.
and tighten by hand.
___________________________________________
• Only transport this Equipment on serviceable
vehicles which are rated and designed for such
loads.
• Distribute, balance and secure loads so vehicle
is stable under conditions of use.
After connecting the fuel supply to the supply cylinder,
open the valve on the fuel cylinder and leak test by
brushing a 50/50 soap and water solution on to the fol-
lowing connections:
• Both ends of the fuel hose where it enters the metal connector.
• The threaded fitting on the end of fuel hose attached to the
Ranger® 305 LPG fuel shut off solenoid.
• Do not exceed maximum rated loads for compo-
nents such as suspension, axles and tires.
• Mount equipment base to metal bed or frame of
vehicle.
• Follow vehicle manufacture’s instructions.
------------------------------------------------------------------------
• The fuel hose coupler and the connection to the cylinder valve.
• The stem of the cylinder valve and where the valve is attached
to the top of the cylinder.
• All other fittings on top of the fuel cylinder.
PRE-OPERATION SERVICE
If growing bubbles appear, there is a leak. Re-tighten
connection or replace defective component. Retest to
make sure that there is no leak.
CAUTION
READ the engine operating and maintenance
instructions supplied with this machine.
Leak test must be performed each time the fuel cylin-
der is replaced.
WARNING
Always close the cylinder valve when the machine is
not being used.
fuel can cause fire or explosion.
LPG
-
• All leak testing must be done in a
well ventilated area free from all
potential ignition sources.
The specification for aluminum lift truck cylinders are
shown below:
• Keep sparks and flame away from machine and
LPG supply cylinder.
• Do not expose the LPG supply cylinder to tem-
peratures exceeding 120°F (49°C).
• Do not weld on or near the LPG supply cylinder.
• Do not smoke or allow any potential ignition
sources near the LPG supply cylinder.
•
Always be certain that the LPG supply cylinder is
NOT in the welding circuit. Do not allow either weld-
ing cable to come in contact with the supply cylin-
der.
• Replace the fuel supply hose if there is exces-
sive abrasion, cracks or wear or if the hose is
cut.
------------------------------------------------------------------------
Capacity
LP-Gas
(LBS.)
33.5
Cylinder
Volume
(Cu. In.)
2219
Weight
Empty
(LBS.)
22.5
Foot ring
Outside
Diameter
9 3/8”
FUEL
A lift truck type coupler is provided on the supplied
fuel line for easy hand attachment to a lift truck type
LPG fuel cylinder. The fuel cylinder must meet D.O.T.
Specification 4E-240. The valve on the fuel cylinder
must be installed on the outlet marked “LIQUID”.
The engine will not develop full power if connected to
the vapor outlet.
43.5
2873
25.5
9 3/8”
Note: The Ranger® 305 LPG cannot be used with vapor
draw LP gas cylinders such as those used for
recreation vehicles, trailers, grills, and boats.
RANGER® 305LPG
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A-5
OIL
A-5
INSTALLATION
CAUTION
An incorrect spark arrestor may lead to damage to
the engine or adversely affect performance.
------------------------------------------------------------------------
HIGH FREQUENCY GENERATORS FOR
TIG APPLICATIONS
The RANGER® 305LPG is shipped with the engine
crankcase filled with high quality SAE 10W-30 oil.
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 run-
ning time during the first 25 running hours. Refer to
the engine Operator’s Manual for specific oil recom-
mendations 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 service and maintenance inter-
vals.
The K930-2 TIG Module is suitable for use with the
RANGER® 305LPG. The RANGER® 305LPG and
any high frequency generating equipment must be
properly grounded. See the K930-2 Operating Manual
for completed instructions on installation, operation,
and maintenance.
-------------------------------------------------------------------
ENGINE COOLING SYSTEM
REMOTE CONTROL
WARNING
The RANGER® 305LPG is equipped with a 6-pin and
a 14-pin connector. The 6-pin connector is for con-
necting the K857 or K857-1 Remote Control (optional)
or for TIG welding, the K870 foot Amptrol or the K963-
3 hand Amptrol.
Air to cool the engine is drawn in lower set of louvers
on the case back. It is important that the intake air is
not restricted. Allow a minimum clearance of 2 feet
(Im) from the case back to a vertical surface.
When in the CC-STICK, PIPE, and CV-WIRE modes
and when a remote control is connected to the
Amphenol, the auto-sensing circuit in the RANGER®
305LPG automatically switches the OUTPUT control
from control at the welder to remote control.
bATTERY CONNECTION
CAUTION
Use caution as the electrolyte is a strong acid that
can burn skin and damage eyes.
------------------------------------------------------------------------
The RANGER® 305LPG is shipped with the negative
battery cable disconnected. Make certain that the
RUN-STOP switch is in the STOP position. Remove
the two screws from the rear battery tray using a
screwdriver or a 3/8" socket. Attach the negative bat-
tery cable to the negative battery terminal and tighten
using a 1/2" socket or wrench.
The 14-pin connector is used to directly connect a
wire feeder or TIG Module (K930-2) control cable. In
the CV-WIRE mode, the RANGER® 305LPG auto-
sensing circuit automatically makes the RANGER®
305LPG Output Control inactive and the wire feeder
voltage control active when the control cable is con-
nected to the 14-pin connector.
NOTE: When a wire feeder with a built in welding volt-
age control is connected to the 14-pin connector, do
not connect anything to the 6-pin connector.
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 bat-
tery with the correct polarity.
ELECTRICAL CONNECTIONS
MACHINE GROUNDING
MUFFLER OUTLET PIPE
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.) To prevent danger-
ous electric shock, other equipment to which this
engine driven welder supplies power must:
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. Tighten
using a 9/16" socket or wrench.
SPARK ARRESTER
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
locations where unarrested sparks may present a fire
hazard. 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
K1898-1 must be installed and properly maintained.
WARNING
• be grounded to the frame of the welder using a
grounded type plug.
• be double insulated. Do not ground the machine
to a pipe that carries explosive or combustible
material.
------------------------------------------------------------------------
RANGER® 305LPG
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A-6
A-6
INSTALLATION
When this welder is mounted on a truck or trailer, its
frame must be electrically connected to the metal
frame of the vehicle, use a #8 or larger copper wire
connected between the machine grounding stud and
frame of the vehicle. When this engine driven welder
is connected to premises wiring such as that in a
home or shop, its frame must be connected to the
system earth ground. See further connection instruc-
tions in the section entitled "Standby Power
Connections" as well as the article on grounding in the
latest U.S. National Electrical Code and the local
code.
TAbLE A-1
TOTAL COMbINED LENGTH OF
ELECTRODE AND WORK CAbLES
Cable Size for
Cable Length
305 Amps
100% Duty Cycle
1 / 0 AWG
0-100Ft. (0-30 meters)
2 / 0 AWG
3 / 0 AWG
100-150 Ft. (Im meters)
150-200 Ft. (46-61 meters)
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 insulat-
ed joints, or to the metal framework of a building
which has been effectively grounded.
CAbLE INSTALLATION
Install the welding cables to your RANGER® 305LPG
as follows:
The U.S. National Electrical Code lists a number of
alternate means of grounding electrical equipment. A
machine grounding stud marked with the symbol
is provided on the front of the welder.
1. The engine must be OFF to install welding cables.
2. Remove the flanged nuts from the output terminals.
3. Connect the electrode holder and work cables to
the weld output terminals. The terminals are identi-
fied on the case front.
WELDING TERMINALS
The RANGER® 305LPG is equipped with a toggle
switch for selecting "hot" welding terminal when in the
"WELD TERMINALS ON" position or "cold" welding
terminal when in the "REMOTELY CONTROLLED"
position.
4. Tighten the flanged nuts securely.
5. Be certain that the metal piece you are welding (the
“work”) is properly connected to the work clamp and
cable.
6. Check and tighten the connections periodically.
WELDING OUTPUT CAbLES
CAUTION
With the engine off connect the electrode and work
cables to the output studs. The welding process dic-
tates the polarity of the electrode cable. These con-
nections should be checked periodically and tightened
with a 3/4" wrench.
• Loose connections will cause the output termi-
nals to overheat. The terminals may eventually
melt.
• Do not cross the welding cables at the output
terminal connection. Keep the cables isolated
and separate from one another.
Table A.1 lists recommended cable sizes and lengths
for rated current and duty cycle. Length refers to the
distance from the welder to the work and back to the
welder. Cable diameters are increased for long cable
lengths to reduce voltage drops.
------------------------------------------------------------------------
RANGER® 305LPG
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A-7
A-7
INSTALLATION
TABLE lll
ELECTRICAL DEVICE USE WITH THE RANGER® 305LPG.
Type
Common Electrical Devices
Possible Concerns
Resistive
Heaters, toasters, incandescent
light bulbs, electric range, hot
pan, skillet, coffee maker.
NONE
Capacitive
TV sets, radios, microwaves,
appliances with electrical control.
Voltage spikes or high voltage
regulation can cause the capaci-
tative elements to fail. Surge
protection, transient protection,
and additional loading is recom-
mended for 100% fail-safe oper-
ation. DO NOT RUN THESE
DEVICES WITHOUT ADDI-
TIONAL RESISTIVE TYPE
LOADS.
Inductive
Single-phase induction motors,
drills, well pumps, grinders, small
refrigerators, weed and hedge
trimmers
These devices require large
current inrush for starting.
Some synchronous motors may
be frequency sensitive to attain
maximum output torque, but
they SHOULD BE SAFE from
any frequency induced failures.
Capacitive/Inductive
Computers, high resolution TV sets,
complicated electrical equipment.
An inductive type line condition-
er along with transient and
surge protection is required, and
liabilities still exist. DO NOT
USE THESE DEVICES WITH A
RANGER® 305LPG.
The Lincoln Electric Company is not responsible for any damage to electrical components improperly connected
to the RANGER® 305LPG.
RANGER® 305LPG
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A-8
A-8
INSTALLATION
AUXILIARY POWER RECEPTACLES
STANDbY POWER CONNECTIONS
Start the engine and set the “IDLER” control switch to
the “High Idle” mode. Voltage is now correct at the
receptacles for auxiliary power. This must be done
before a tripped GFCI receptacle can be reset proper-
ly. See the MAINTENANCE section for detailed infor-
mation on testing and resetting the GFCI receptacle.
The RANGER® 305LPG is suitable for temporary, standby
or emergency power using the engine manufacturer’s rec-
ommended maintenance schedule.
The RANGER® 305LPG can be permanently installed as a
standby power unit for 240 VAC, 3 wire, single phase, 40
amp service. Connections must be made by a licensed elec-
trician who can determine how the 120/240 VAC power can
be adapted to the particular installation and comply with all
applicable electrical codes.
The auxiliary power of the RANGER 305 LPG con-
sists of two 20 Amp-120 VAC GFCI (5-20R) duplex
receptacles and one 50 Amp 120/240 VAC (14-50R)
receptacle. The 240 VAC receptacle can be split for
single phase 120 VAC operation.
• Install the double-pole, double-throw switch between the
power company meter and the premises disconnect.
Switch rating must be the same or greater than the cus-
tomer’s premises disconnect and service over current pro-
tection.
The auxiliary power capacity is 9,000 Watts Peak,
8000 Watts Continuous of 60 Hz, single phase power.
The auxiliary power capacity rating in watts is equiva-
lent to volt-amperes at unity power factor. The max
permissible current of the 240 VAC output is 33 Amps.
The 240 VAC output can be split to provide two sepa-
rate 120 VAC outputs with a max permissible current
of 33 Amps per output to two separate 120 VAC
branch circuits (these circuits cannot be paralleled).
Output voltage is within ± 10% at all loads up to rated
capacity. All auxiliary power is protected by circuit
breakers.
• Take necessary steps to assure load is limited to the
capacity of the RANGER® 305LPG by installing a 40
amp, 240 VAC double pole circuit breaker. Maximum
rated load for each leg of the 240 VAC auxiliary is 40
amperes. Loading above the rated output will reduce out-
put voltage below the allowable - 10% of rated voltage
which may damage appliances or other motor-driven
equipment and may result in overheating of the
RANGER® 305LPG engine and/or alternator windings.
The 120 V 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 cur-
rent capacity of the associated receptacle.
• 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 or as part
number T12153-9.)
NOTE: The 240 V receptacle has two 120 V circuits, but
are of opposite polarities and cannot be paralleled.
• Plug this cable into the 50 Amp, 120/240 Volt receptacle
on the RANGER® 305LPG case front.
RANGER® 305LPG
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A-9
A-9
INSTALLATION
CONNECTION OF RANGER® 305LPG TO PREMISES
240 VOLT
GROUNDED CONDUCTOR
POWERꢀ
240 Voltꢀ
60 Hz.ꢀ
3-Wireꢀ
Service
120 VOLT
ꢀ
COMPANYꢀ
ꢀ
120 VOLT
METER
NEUTRAL
BUS
N
LOAD
DOUBLE POLE DOUBLE THROW
SWITCH RATING TO BE THE SAME
AS OR GREATER THAN PREMISES
SERVICE OVERCURRENT
PROTECTION.
PREMISESꢀ
DISCONNECT ANDꢀ
SERVICEꢀ
OVERCURRENTꢀ
PROTECTION
GROUND
40AMPꢀ
240 VOLT
DOUBLEꢀ
POLEꢀ
CIRCUITꢀ
BREAKER
50 AMP, 120/240ꢀ
VOLT PLUGꢀ
NEMA TYPE 14-50
240 VOLT
GND
N
50 AMP, 120/240 VOLTꢀ
RECEPTACLE
NOTE: No. 6 COPPER CONDUCTOR CABLE SEEꢀ
NATIONAL ELECTRICAL CODE FOR ALTERNATE WIREꢀ
SIZE RECOMMENDATIONS.
WARNING
• Only a licensed, certified, trained electrician should install the machine to a premises or residential
electrical system. be certain that:
• The installation complies with the National Electrical Code and all other applicable electrical codes.
• The premises is isolated and no feedback into the utility system can occur. Certain state and local
laws require the premises to be isolated before the Generator is linked to the premises. Check your
state and local requirements.
• A double pole, double throw transfer switch in conjunction with the properly rated double throw
circuit breaker is connected between the generator power and the utility meter.
RANGER® 305LPG
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A-10
A-10
INSTALLATION
CONNECTION OF LINCOLN ELECTRIC
WIRE FEEDERS
• Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode polarity
being used.
• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
• Set the "IDLE" switch to the "AUTO" position.
Connection of LN-7 or LN-8 to the RANGER®
305LPG
1. Shut the welder off.
Connection of the LN-25 to the RANGER® 305LPG
2. Connect the LN-7 or LN-8 per instructions on the
appropriate connection diagram in Section F
3. Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode being
used.
WARNING
Shut off welder before making any electrical con-
nections.
------------------------------------------------------------------------
The LN-25 with or without an internal contactor may
be used with the RANGER® 305LPG. See the appro-
priate connection diagram in Section F.
4. Set the "MODE" switch to the "CV WIRE " posi-
tion.
5. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
NOTE: The LN-25 (K431) Remote Control Module
and (K432) Remote Cable are not recommended for
use with the RANGER® 305LPG.
6 Set the "WELD TERMINALS" switch to the
"REMOTELY CONTROLLED" position.
7. Set the "IDLE" switch to the "HIGH" position.
1. Shut the welder off.
Connection of LN-15 to the RANGER® 305LPG
2. For electrode Positive, connect the electrode
cable from the LN-25 to the "+" terminal of the
welder and work cable to the "-" terminal of the
welder. For electrode Negative, connect the elec-
trode cable from the LN-25 to the "-" terminal of
the welder and work cable to the "+" terminal of
the welder.
These connections instructions apply to both the LN-
15 Across The-Arc and Control Cable models. The
LN-15 has an internal contactor and the electrode is
not energized until the gun trigger is closed. When the
gun trigger is closed the wire will begin to feed and the
welding process is started.
• Shut the welder off.
3. Attach the single lead from the front of the LN-25
to work using the spring clip at the end of the lead.
This is a control lead to supply current to the wire
feeder motor; it does not carry welding current.
• For electrode Positive, connect the electrode cable
to the "+" terminal of the welder and work cable to
the "-" terminal of the welder. For electrode
Negative, connect the electrode cable "-" terminal of
the welder and work cable to the "+" terminal of the
welder.
4. Set the MODE switch to the "CV-WIRE " position.
5. Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON"
• Across The-Arc Model:
6. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
Attach the single lead from the front of the LN-15 to
work using the spring clip at the end of the lead. This
is a control lead to supply current to the wire feeder
motor; it does not carry welding current.
7. Set the "IDLE" switch to the "AUTO" position.
When not welding, the RANGER® 305LPG engine
will be at the low idle speed. If you are using an
LN-25 with an internal contactor, the electrode is
not energized until the gun trigger is closed.
Set the "WELD TERMINALS" switch to "WELD TER-
MINALS ON"
• Control Cable Model:
8. When the gun trigger is closed, the current sensing
circuit will cause the RANGER® 305LPG 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 12 seconds unless welding is
resumed.
Connect Control Cable between Engine Welder and
Feeder.
Set the "WELD TERMINALS" switch to "REMOTELY
CONTROLLED"
• Set the MODE switch to the "CV-WIRE " position.
RANGER 305LPG
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A-11
A-11
INSTALLATION
CAUTION
If you are using an LN-25 without an internal con-
tactor, the electrode will be energized when the
RANGER® 305LPG is started.
------------------------------------------------------------------------
Connection of LN-742,K487-25 Spool Gun, and
Cobramatic to RANGER® 305LPG
1. Shut the welder off.
2. Connect per instructions on the appropriate con-
nection diagram in Section F.
RANGER® 305LPG
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b-1
b-1
OPERATION
SAFETY PRECAUTIONS
FOR AUXILIARY POWER:
Start the engine and set the IDLER control switch to
the desired operating mode. Full power is available
regardless of the welding control settings providing no
welding current is being drawn.
Read and understand this entire section before
operating your RANGER® 305LPG.
Do not attempt to use this equipment until you
have thoroughly read all operating and mainte-
nance manuals supplied with your machine. They
include important safety precautions, detailed
engine starting, operating and maintenance
instructions and parts lists.
The auxiliary power of the RANGER® 305LPG con-
sists of two 20 Amp-120 VAC GFCI (5-20R) duplex
receptacles and one 50 Amp 120/240 VAC (14-50R)
receptacle. The 240 VAC receptacle can be split for
single phase 120 VAC operation.
ELECTRIC SHOCK can kill.
•Do not touch electrically live parts
such as output terminals or internal
wiring.
ENGINE OPERATION
Before Starting the Engine:
• Be sure the machine is on a level surface.
•Insulate yourself from the work and
ground.
• Open top engine door and remove the engine oil
dipstick and wipe it with a clean cloth. Reinsert the
dipstick and check the level on the dipstick.
•Always wear dry insulating gloves.
------------------------------------------------------------------------
ENGINE EXHAUST can kill.
•Use in open, well ventilated areas or
vent exhaust outside
• Add oil (if necessary) to bring the level up to the full
mark. Do not overfill. Close engine door.
• See Engine Owner’s Manual for specific oil recom-
mendations.
•Do not stack anything near the
engine.
------------------------------------------------------------------------
MOVING PARTS can injure.
•Do not operate with doors open or
guards off.
WARNING
• The combustion of LPG fuel
does produce carbon monoxide.
Although the level of CO emis-
•Stop engine before servicing.
2
sion is lower than gasoline com-
bustion, the exhaust from the
Ranger® 305LPG can kill.
• Avoid breathing of vapor.
• Keep sparks and flame away
from tank.
•Keep away from moving parts
------------------------------------------------------------------------
• Only qualified personnel should operate this
equipment.
ADDITIONAL SAFETY PRECAUTIONS
Always operate the welder with the hinged door
closed and the side panels in place as these pro-
vide maximum protection from moving parts and
insure proper cooling air flow.
GENERAL DESCRIPTION
The RANGER® 305LPG is a gasoline engine pow-
ered DC multi-process welding power source and 120
/ 240 volt AC power generator. The engine drives a
generator that supplies three phase power for the DC
welding circuit and single phase power for the AC
auxiliary outlets. The DC welding control system uses
state of the art Chopper Technology
welding performance. The RANGER 305LPG is NOT
for superior
RECOMMENED for pipe thawing.
RANGER® 305LPG
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b-2
b-2
OPERATION
1
2
15
14
13
3
12
11
10
9
4
8
7
6
5
4. ARC CONTROL:
WELDING CONTROLS
1. OUTPUT CONTROL:
The CONTROL dial provides continuous control of the
welding current or welding voltage depending on the
selected welding mode. This control is not active in the
CC-STICK, DOWN HILL PIPE, and CV-WIRE modes
when a remote control or wire feeder with remote con-
trol is connected to either the 6 pin or 14 pin Amphenol.
The ARC CONTROL WIRE/STICK dial is active in the WIRE,
STICK and DOWN HILL PIPE modes, and has different func-
tions in these modes. This control is not active in the TIG
mode.
CC-STICK mode: In this mode, the ARC CONTROL dial
sets the short circuit current (arc-force) during stick weld-
ing to adjust for a soft or crisp arc. Increasing the number
from -10 (soft) to +10(crisp) increases the short circuit
current and prevents sticking of the electrode to the plate
while welding. This can also increase spatter. It is recom-
mended that the ARC CONTROL be set to the minimum
number without electrode sticking. Start with a setting at
0.
2. DIGITAL OUTPUT METERS
The digital meters allow the output voltage (CV-WIRE
mode) or current (CC-STICK, DOWN HILL PIPE and
TIG modes) to be set prior to welding using the OUT-
PUT control dial. During welding, the meter display the
actual output voltage (VOLTS) and current (AMPS). A
memory feature holds the display of both meters on for
seven seconds after welding is stopped. This allows the
operator to read the actual current and voltage just prior
to when welding was ceased. While the display is being
held the left-most decimal point in each display will be
flashing. The accuracy of the meters is +/- 3%.
DOWNHILL PIPE MODE: In this mode, the ARC CON-
TROL dial sets the short circuit current (arc force) dur-
ing stick welding to adjust for a soft or a more forceful
digging arc (crisp). Increasing the number from -
10(soft) to +10(crisp) increases the short circuit current
which results in a more forceful digging arc. Typically a
forceful digging arc is preferred for root and hot passes.
A softer arc is preferred for fill and cap passes where
weld puddle control and deposition (“stacking” of iron)
are key to fast travel speeds. It is recommended that
the ARC CONTROL be set initially at 0.
3. WELD MODE SELECTOR SWITCH:
(Provides four selectable welding modes)
CV-WIRE
DOWN HILL PIPE
CC-STICK
TOUCH START TIG
RANGER® 305LPG
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b-3
b-3
OPERATION
CV-WIRE mode: In this mode, turning the ARC CONTROL
12. CHOKE - When pulled out, it closes the choke valve
clockwise from –10 (soft) to +10 (crisp) changes the arc
from soft and washed-in to crisp and narrow. It acts as an
inductance control. The proper setting depends on the pro-
cedure and operator preference. Start with a setting at 0.
on the engine carburetor for quick starting.
13. START PUSH bUTTON - Energizes the
starter motor to crank the engine.
5. WELD OUTPUT TERMINALS WITH FLANGE
14. IDLER SWITCH
- Has two positions as follows:
NUT:
Provides a connection point for the electrode and work
1) In the HIGH position, the engine runs at the high
idle speed controlled by the engine governor.
2) In the AUTO position, the idler operates as fol-
lows:
cables.
6. GROUND STUD:
Provides a connection point for connecting the machine
case to earth ground for the safest grounding procedure.
• When switched from HIGH to AUTO or after start-
ing the engine, the engine will operate at full
speed for approximately 12 seconds and then go
to low idle speed.
7. 14 PIN CONNECTOR:
For attaching wire feeder control cables to the RANGER®
305G. Includes contactor closure circuit , auto-sensing
remote control circuit, and 120V and 42V power. The
remote control circuit operates the same as the 6 Pin
Amphenol.
• When the electrode touches the work or power is
drawn for lights or Tools (approximately 100
Watts minimum), the engine accelerates and
operates at full speed.
• When welding ceases or the AC power load is
turned off, a fixed time delay of approximately 12
seconds starts. 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.
8. 6 PIN CONNECTOR:
For attaching optional remote control equipment. When in
the CC-STICK, PIPE, and CV-WIRE modes and when a
remote control is connected to the Amphenol, the auto-
sensing circuit in the RANGER® 305G automatically
switches the OUTPUT control from control at the welder to
remote control.
• The engine will automatically return to high idle
speed when there is welding load or AC power
load reapplied.
®
When using the TOUCH START TIG mode with a TIG
15. HOUR METER
Module connected to the RANGER® 305G, the OUTPUT
control on the front of the RANGER® 305G is used to set
the maximum current range of the CURRENT CONTROL
on the TIG Module.
The hour meter displays the total time that the
engine has been running. This meter is useful for
scheduling prescribed maintenance.
STARTING AND STOPPING THE ENGINE
9. WELD TERMINALS CONTROL SWITCH:
In the WELD TERMINALS ON position, the output is elec-
trically hot all the time. In the REMOTELY CONTROLLED
position, the output is controlled by a wire feeder or amp-
trol device, and is electrically off until a remote switch is
• Remove all plugs connected to the AC power recep-
tacles.
• Set IDLER switch to AUTO.
• Set the RUN/STOP switch to RUN.
• Pull the choke to the full out position.
depressed.
• Press and hold the engine START button until the
engine starts.
10. WIRE FEEDER VOLTMETER SWITCH:
Matches the polarity of the wire feeder voltmeter to the
polarity of the electrode.
• Release the engine START button when the engine
starts.
• Push the choke back in.
ENGINE CONTROLS:
• The engine will run at high idle speed for approxi-
mately 12 seconds and then go to low idle speed.
Allow the engine to warm up at low idle for several
minutes before applying a load and/or switching to
high idle. Allow a longer warm up time in cold
weather.
11. RUN/STOP SWITCH - RUN position energizes the
engine prior to starting. STOP position stops the engine.
The oil pressure interlock switch prevents battery drain if
the switch is left in the RUN position and the engine is
not operating.
RANGER® 305LPG
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OPERATION
DC STICK WELDING
The RANGER® 305LPG can be used with a broad
range of DC stick electrodes.
The MODE switch provides two stick welding settings
as follows:
CAUTION
Operating the starter motor for more than 5 sec-
onds can damage the motor. If the engine fails to
start, release the switch and wait 10 seconds
before operation the starter again. Do NOT push
the START button while the engine is running
because this can damage the ring gear and/or the
starter motor.
------------------------------------------------------------------------
NOTE: When starting a RANGER® 305LPG for the
first time, or after and extended period of time of not
operating, it will take longer than normal because the
fuel pump has to fill the fuel line and carburetor.
CONSTANT CURRENT (CC-STICK)
WELDING
The CC-STICK position of the MODE switch is
designed for horizontal and vertical-up welding with all
types of electrodes, especially low hydrogen. The out-
put CONTROL dial adjusts the full output range for
stick welding.
The ARC CONTROL knob sets the short circuit current
during stick welding (arc-force). Increasing the number
from -10 to +10 increases the short circuit current and
prevents sticking of the electrode to the plate while
welding. This can also increase spatter. It is recom-
mended that the ARC CONTROL be set to the mini-
mum number without electrode sticking. Start with the
dial set at 0.
STOPPING
Remove all welding and auxiliary power loads and
allow the engine to run at low idle speed for a few min-
utes to cool the engine.
Stop the engine by placing the RUN-STOP in the
STOP position.
DOWN HILL PIPE WELDING
NOTE: A fuel shut off valve is not required on the
RANGER® 305LPG because the fuel tank is mounted
below the engine.
This slope controlled setting is intended for "out-of-
position" and "down hill" pipe welding where the opera-
tor would like to control the current level by changing
the arc length. The output CONTROL dial adjusts the
full output range for pipe welding.
WELDER OPERATION
The ARC CONTROL knob sets the short circuit current
during stick welding (arc-force). Increasing the number
from -10 to +10 increases the short circuit current and
prevents sticking of the electrode to the plate while
welding. This can also increase spatter. It is recom-
mended that the ARC CONTROL be set to the mini-
mum number without electrode sticking. Start with the
dial set at 0.
DUTY CYCLE
Duty Cycle is the percentage of time the load is being
applied in a 10 minute period. For Example, a 60%
duty cycle represents 6 minutes of load and 4 minutes
of no load in a 10 minute period.
TYPICAL RANGER® 305LPG FUEL CONSUMPTION
Kohler CH7305
lbs./hrs (Kg/hr)
Low Idle - No Load
2400 R.P.M.
2.59 (1.17)
4.58 (2.08)
8.80 (3.99)
9.22 (4.18)
High Idle - No Load
3700 R.P.M.
DC Weld Output
300 Amps @ 25 Volts
Auxiliary Power
9,000 Watts
RANGER® 305LPG
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OPERATION
When using the TIG Module, the OUTPUT control on the
RANGER® 305LPG is used to set the maximum range of the
CURRENTꢀCONTROLꢀon the TIG module or an Amptrol if
connected to the TIG Module.
TIG WELDING
The TOUCH START TIG setting of the MODE switch is for
DC TIG (Tungsten Inert Gas) welding. To initiate a weld, the
CONTROL dial is first set to the desired current and the tung-
sten is touched to the work. During the time the tungsten is
touching the work there is very little voltage or current and in
general, no tungsten contamination. Then, the tungsten is
gently lifted off the work in a rocking motion, which establish-
es the arc.
WIRE WELDING-CV
Connect a wire feeder to the RANGER® 305LPG according
to the instructions in INSTALLATION INSTRUCTIONS
Section.
The RANGER® 305LPG in the CV-WIRE mode, permits it to
be used with a broad range of flux cored wire (Innershield
and outreached) electrodes and solid wires for MIG welding
(gas metal arc welding). Welding can be finely tuned using
the ARC CONTROL. Turning the ARC CONTROL clockwise
from –10 (soft) to +10 (crisp) changes the arc from soft and
washed-in to crisp and narrow. It acts as an inductance con-
trol. The proper setting depends on the procedure and oper-
ator preference. Start with the dial set at 0.
The ARC CONTROL is not active in the TIG mode. To STOP
a weld, simply pull the TIG torch away from the work. When
the arc voltage reaches approximately 30 Volts the arc will go
out and the machine will reset the current to the Touch Start
level. To reinitiate the arc, re touch the tungsten to the work
and lift. Alternatively, the weld can be stopped by releasing
the Amptrol or arc start switch.
The RANGER® 305LPG can be used in a wide variety of DC
TIG welding applications. In general the ‘Touch Start’ feature
allows contamination free starting without the use of a Hi-fre-
quency unit. If desired, the K930-2 TIG Module can be used
with the RANGER® 305LPG. The settings are for reference.
Listed below are some wires suitable for use on this
machine:
• Innershield - NR-311, NS-3M, NR-207, NR-203 Ni 1%,
NR-212.
RANGER® 305LPG settings when using the K930-2 TIG
Module with an Amptrol or Arc Start Switch:
• outreached - 0S-70, 0S-71M, 0S-71 ELITE.
• Solid wires for MIG welding - .035 (0.9 mm), and
.045 (1.1 mm), Super Arc L-50 and L-56, .035 (0.9 mm) and
.045 (1.1 mm) Blue Max MIG 308 lw.
• Set the MODE Switch to the TOUCH START TIG setting.
• Set the "IDLER" Switch to the "AUTO" position.
• Set the "WELDING TERMINALS" switch to the "REMOTE-
LY CONTROLLED" position. This will keep the "Solid
State" contactor open and provide a “cold” electrode until
the Amptrol or Arc Start Switch is pressed.
Contact your local authorized Lincoln Electric Distributor or the
Lincoln Electric Company for specific wires used on certain
applications with this machine.
(1)
(2)
TYPICAL CURRENT RANGES
FOR TUNGSTEN ELECTRODES
Tungsten Electrode
Diameter in. (mm)
DDENE (-)
DAzE (+)
Approximate Argon Gas Flow
TIG TORCH
Flow Rate C.F.H. ( l /min.)
Nozzle Size (4), (5)
1%, 2% Thoriated 1%, 2% Thoriated
Tungsten
Aluminum
Stainless Steel
Tungsten
.010
0.020
0.040
(.25)
(.50)
(1.0)
2-15
5-20
15-80
(3)
(3)
(3)
3-8
5-10
5-10
(2-4)
(3-5)
(3-5)
3-8
5-10
5-10
(2-4)
(3-5)
(3-5)
#4, #5, #6
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
15-23
(6-8)
(7-11)
11-15
11-15
(5-7)
(5-7)
#6, #7, #8
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
23-27
28-32
(10-12)
(11-13)
(13-15)
13-17
18-22
23-27
(6-8)
(8-10)
(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
EWP
1% Thoriated
2% Thoriated
Esther
Esther
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) DAzE is not commonly used in these sizes.
(4) TIG torch nozzle "sizes" are in multiples of thus of an inch:
# 4 = 1/4 in.
# 5 = 5/16 in.
# 6 = 3/8 in.
# 7 = 7/16 in.
# 8 = _ in.
(6 mm)
(8 mm)
(10 mm)
(11 mm)
(12.5 mm)
(16 mm)
#10 = 5/8 in.
(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 tem-
peratures and high duty cycles.
RANGER® 305LPG
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OPERATION
The auxiliary power capacity is 10,000 watts Peak,
9,000 Watts continuous of 60 Hz, single phase power.
The auxiliary power capacity rating in watts is equiva-
lent to volt-amperes at unity power factor. The max
permissible current of the 240 VAC output is 40 Amps.
The 240 VAC output can be split to provide two sepa-
rate 120 VAC outputs with a max permissible current
of 40 Amps per output to two separate 120 VAC
branch circuits (these circuits cannot be paralleled).
Output voltage is within ± 10% at all loads up to rated
capacity. All auxiliary power is protected by circuit
breakers.
ARC GOUGING
The RANGER® 305LPG can be used for limited arc
gouging. For optimal performance, set the MODE
switch to CC-STICK and the ARC CONTROL to +10.
Set the CONTROL knob to adjust output current to
the desired level for the gouging electrode being used
according to the ratings in the following table.
Carbon Diameter
Current Range
(DC, electrode Positive)
60-90 Amps
1/8"
5/32"
3/16"
90-150 Amps
The 120 V 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.
200-250 Amps
AUXILIARY POWER:
Start the engine and set the IDLER control switch to
the desired operating mode. Full power is available
regardless of the welding control settings providing no
welding current is being drawn.
NOTE: The 240 V receptacle has two circuits, each of
which measure 120V to neutral but are of opposite
polarities and cannot be paralleled.
The auxiliary power of the RANGER® 305LPG con-
sists of two 20 Amp-120 VAC GFCI (5-20R) duplex
receptacles and one 50 Amp 120/240 VAC (14-50R)
receptacle. The 240 VAC receptacle can be split for
single phase 120 VAC operation. See the “MAINTE-
NANCE SECTION” for detailed information on testing
and resetting the GFCI receptacle.
Simultaneous Welding and Auxiliary Power Loads
The above auxiliary power ratings are with no welding
load. Simultaneous welding and power loads are
specified in the following table. The permissible cur-
rents shown assume that current is being drawn from
either the 120 VAC or 240 VAC supply (not both at the
same time).
RANGER® 305LPG Simultaneous Welding and Power Loads
Permissible Power-Watts
(Unity Power Factor)
Welding
Output-Amps
Permissible Auxiliary
Current in -Amps
@120 VAC *
@ 240 VAC
9000
7600
6500
5300
3800
1700
0
74**
70**
60**
50**
36
37
35
30
25
18
8
100
150
200
250
300
16
* Each duplex receptacle is limited to 20 amps.
** Not to exceed 40A per 120 VAC branch circuit when splitting the 240 VAC output.
RANGER® 305LPG Extension Cord Length Recommendations
(Use the shortest length extension cord possible sized per the following table.)
Maximum Allowable Cord Length in ft. (m) for Conductor Size
12 AWG 10 AWG 8 AWG 6 AWG
Current voltam- Load
(Amps) meters (Watts)
14 AWG
4 AWG
15
20
15
20
37
120
120
240
240
240
1800
2400
3600
4800
9000
30
(9)
40
(12)
(9)
(23)
(18)
75
(23)
(15)
(46)
(30)
(16)
125
(38)
(27)
(69)
(53)
(29)
175
(53)
(42)
(107)
(84)
(49)
300
(91)
(69)
(183)
(137)
(73)
30
75
60
50
150
100
53
88
225
175
96
138
350
275
160
225
600
450
239
60
(18)
Conductor size is based on maximum 2.0% voltage drop.
RANGER® 305LPG
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C-1
C-1
ACCESSORIES
OPTIONS/ACCESSORIES AND COM-
PATIbLE LINCOLN EQUIPMENT
K957-1 HEAVY DUTY, TWO WHEEL TRAILER FOR
K802N POWER PLUG KIT
Provides four 120 volt plugs rated at 20 amps each
and one dual voltage, full KVA plug rated at 120/240
volts, 50 amps.
SMALL WELDERS
For road, off-road and in-plant and yard towing.
(For highway use, consult applicable federal, state and
local laws regarding requirements for brakes, lights,
fenders, etc.). Order:
K802R POWER PLUG KIT
Provides four 120 volt plugs rated at 15 amps each
and one dual voltage, full KVA plug rated at 120/240
volts, 50 amps.
K2635-1 Trailer
K2639-1 Fender & Light Kit
K2640-1 Cable Storage Rack
T12153-9 50 AMP, 120/240 V POWER PLUG
K1816-1 FULL KVA ADAPTER KIT
Plugs into the 120/240V NEMA 14-50R receptacle on
the case front (which accepts 4-prong plugs) and
converts it to a NEMA 6-50R receptacle, (which
accepts 3-prong plugs.)
K1737-1 FOUR WHEEL ALL-TERRAIN UNDERCAR-
RIAGE For moving by hand at construction sites.
Heavy duty puncture resistant pneumatic tires.
K1770-1 UNDERCARRIAGE (FACTORY)
TIG Welding
For moving by hand on a smooth surface.
Heavy duty puncture resistant pneumatic tires & front
caster, One or two gas cylinders can be mounted on
the rear of the undercarriage with the installation of
K1745-1 Cylinder Holder(s).
K1783-9 TIG Torch PTA-26V (25ft.)
K963-3 Hand Amptrol
K870 Foot Amptrol
KP509 Magnum Parts Kit
Spool Gun
K487-25 Magnum Spool Gun
K488 Magnum Control Module
K1739-1 CAbLE CARRIER KIT
For use on K1737-1 and K1770-1 Undercarriages.
K1745-1 WELDING GAS CYLINDER LOX TANK
HOLDER
K691-10 Input Cable)
For use on K1770-1 Undercarriage. One or two may be
installed on an undercarriage.
K2361-1 LPG TANK HOLDER KIT
Mounts to K1745-1 Gas Cylinder holder to secure LPG
tank.
K1788-1 ROLL CAGE - Gives added damage protection.
K886-2 CANVAS COVER - Protects machine when not in use.
K1898-1 SPARK ARRESTOR
Mounts inside exhaust pipe.
K704 ACCESSORY SET - Includes 35 ft.(10.6m) of
electrode cable and 30 ft.(9.1m) of work cable, head-
shield, work clamp electrode holder. Cables are rated
at 400 amps, 100% duty cycle.
K857 25 ft.(7.6m) or K857-1 100 ft.(30.5m) REMOTE CON-
TROL
Portable control provides same dial range as the output
control on the welder. Has a convenient 6 pin plug for
easy connection to the welder.
RANGER® 305LPG
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D-1
D-1
MAINTENANCE
SAFETY PRECAUTIONS
KOHLER ENGINE
FREQUENCY
Daily or Before
Starting Engine
MAINTENANCE REQUIRED
• Check oil level.
WARNING
• Have qualified personnel do all maintenance
and troubleshooting work.
• Turn the engine off before working inside the
machine or servicing the engine.
• Check air cleaner for dirty, loose,
or damaged parts.
• Check air intake and cooling
areas, clean as necessary.
• Remove guards only when necessary to
perform maintenance and replace them when
the maintenance requiring their removal is
complete. If guards are missing from the
machine, obtain replacements from a Lincoln
Distributor. (See Operating Manual Parts List.)
5 Hours
Every 25 Hours
Every 100 Hours
Every 100 Hours
First Oil Change
• Service air pre-cleaner..
• Change engine oil. (1)
Read the Safety Precautions in the front of this
manual and in the Engine Owner’s Manual before
working on this machine.
• Clean or replace air filter ele-
ment. (1)
Every 100 Hours
Every 200 Hours
Every 200 Hours
Every 2 Years
• Spark Arrester
• Replace oil filter. (1)
• Check spark plug and gap
• Check fuel lines and clamps.
Keep all equipment safety guards, covers, and
devices in position and in good repair. Keep hands,
hair, clothing, and tools away from the gears, fans,
and all other moving parts when starting, operating, or
repairing the equipment.
(1) Service more frequently when used in dusty areas and/or at high ambient
temperatures.
Routine Maintenance
At the end of each day’s use, make certain that the
valve on the LPG fuel supply cylinder is closed. Also,
check the crankcase oil level and add oil if indicated.
ENGINE MAINTENANCE COMPONENTS
ITEM
MAKE AND PART NUMbER
KOHLER CH23S ENGINE
Oil Filter
Kohler 12 050 01, Fram PH8172
Kohler 47 083 03, Fram CA79
Kohler 24 083 02
Air Filter Element
Air Filter Pre-Cleaner
Spark Plug
Champion RC12YC (.030" Gap)
BCI Group 58 (435 CCA)
Battery
RANGER® 305LPG
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D-2
D-2
MAINTENANCE
• Refill the crankcase with the specified amount of the
recommended oil. Reinstall the oil filler cap.
Engine Oil Change
Drain the oil while the engine is warm to assure rapid
and complete draining.
• Start the engine and check for oil filter leaks.
• Remove the oil filler cap and dipstick. Remove the
yellow cap from the oil drain valve and attach the
flexible drain tube supplied with the machine. Push
in and twist the drain valve counterclockwise. Pull
the valve out and drain the oil into a suitable
container.
• Stop the engine, and check the oil level. If neces-
sary, add oil to the upper limit mark on the dipstick.
Air Cleaner Service
A dirty air cleaner will restrict air flow to the carbure-
tor. To prevent carburetor malfunction, service the air
cleaner regularly. Service more frequently when oper-
ating the engine in extremely dusty areas.
• Close the drain valve by pushing in and twisting
clockwise. Replace the yellow cap.
• Refill to the upper limit mark on the dipstick with the
recommended oil. Tighten the oil filler cap securely.
WARNING
Never use gasoline or low flash point solvents for
cleaning the air cleaner element. A fire or explo-
sion could result.
Engine Oil Refill Capacities
Without oil filter replacement:
• 1.7 US qt. (1.4 Imp qt., 1.6 liter)-Kohler
CAUTION
With oil filter replacement:
• 2.0 US qt. (1.7 Imp qt., 1.9 liter)-Kohler
Never run the engine without the air cleaner.
Rapid engine wear will result from contaminants,
such as dust and dirt being drawn into the engine.
Use 4-stroke motor oil that meets or exceeds the
requirements for APIO service classification SG or
SH. Always check the APIO SERVICE label on the oil
container to be sure it includes the letters SG or SH.
SAE 10W-30 is recommended for general, all-temper-
ature use, -5 F to 104 F (-20 C to 40 C). For the Onan
engine, it is recommended that SAE 30 oil be used
above 82 F (27 C).
Air Pre-cleaner Service
• Loosen the cover retaining knob and remove the
cover.
• Remove the pre-cleaner from the paper element.
• Wash the pre-cleaner in warm water with detergent.
Rinse the pre-cleaner thoroughly until all traces of
detergent are eliminated. Squeeze out excess water
(do not wring). Allow the pre-cleaner to air dry.
See Engine Owner’s Manual for more specific infor-
mation on oil viscosity recommendations.
Wash your hands with soap and water after handling
used oil.
• Saturate the pre-cleaner with new engine oil.
Squeeze out all excess oil.
Please dispose of used motor oil in a manner that is
compatible with the environment. We suggest you
take it in a sealed container to your local service sta-
tion or recycling center for reclamation. Do not throw
it in the trash, pour it on the ground or down a drain.
• Reinstall the pre-cleaner over the paper element.
• Reinstall the air cleaner cover. Secure cover with
the cover retaining knob.
Oil Filter Change
• Drain the engine oil.
• Remove the oil filter, and drain the oil into a suitable
container. Discard the used oil filter.
• Clean the filter mounting base, and coat the gasket
of the new oil filter with clean engine oil.
• Screw on the new oil filter by hand, until the gasket
contacts the filter mounting base, then use an oil fil-
ter socket tool to tighten the filter an additional 1/2 to
7/8 turn.
RANGER® 305LPG
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D-3
D-3
MAINTENANCE
AIR FILTER PAPER ELEMENT
• Loosen the cover retaining knob and remove the
cover.
Spark Plug Service
To ensure proper engine operation, the spark plug
must be properly gapped and free of deposits.
• Remove the pre-cleaner from the paper element.
• Remove the spark plug cap.
• Remove the element cover nut, element cover, and
paper element.
• Clean any dirt from around the spark plug base.
• Use a plug wrench to remove the spark plug.
• Do not wash the paper element or use pressurized
air, as this will damage the element. Replace a
Dirty, bent, or damaged element with a new ele-
ment. Handle new elements carefully; do not use if
the sealing surfaces are bent or damaged.
• Visually inspect the spark plug. Discard them if the
insulator is cracked or chipped. Clean the spark
plug with a wire brush if it is to be reused.
• When servicing the air cleaner, check the air clean-
er base. Make sure it is secured and not bent or
damaged. Also check the element cover for dam-
aged or improper fit. Replace all damaged air
cleaner components.
• Measure the plug gap with a feeler gauge. Correct
as necessary by bending the side electrode.
• Check that the spark plug washer is in good condi-
tion and thread the spark plug in by hand to prevent
cross-threading.
NOTE: Before air cleaner is reassembled make sure
rubber seal is in position around stud. Inspect, mak-
ing sure it is not damaged and seals with the element
cover.
• After the spark plug is seated, tighten with a spark
plug wrench to compress the washer.
• If installing a new spark plug, tighten 1/2 turn after
the spark plug seats to compress the washer.
• Reinstall the paper element, pre-cleaner, element
cover, element cover nut, and air cleaner cover.
Secure cover with the cover retaining knob.
• If reinstalling a used spark plug, tighten 1/8 - 1/4
turn after the spark plug seats to compress the
washer.
SPARK PLUG
To ensure proper engine operation, the spark plug
must be properly gapped and free of deposits.
Spark Plug Gap: .030 in. (0.76 mm)-Kohler
Spark Plug Torque: 20 ft. Lb. (27 N-m)-Kohler
WARNING
CAUTION
NOTE: before removing spark plug, the muffler
becomes very hot during operation and remains
hot for a while after stopping the engine. be care-
ful not to touch the muffler while it is hot.
The spark plug must be securely tightened. An
improperly tightened spark plug can become very
hot and may cause engine damage.
Use only the recommended spark plug or equiva-
lent. A spark plug which has an improper heat
range may cause engine damage.
RANGER® 305LPG
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D-4
D-4
MAINTENANCE
CLEANING THE bATTERY
ENGINE ADJUSTMENT
Keep the battery clean by wiping it with a damp cloth
when dirty. If the terminals appear corroded, discon-
nect the battery cables and wash the terminals with an
ammonia solution or a solution of 1/4 pound (0.11kg)
of baking soda and 1 quart (0.1 L) of water. Be sure
the battery vent plugs (if equipped) are tight so that
none of the solution enters the cells.
OVERSPEED IS HAzARDOUS
The maximum allowable high idle speed for this
machine is 3750 RPM, no load. Do NOT tamper
with governor components or setting or make any
other adjustments to increase the maximum
speed. Severe personal injury and damage to the
machine can result if operated at speeds above
maximum.
After cleaning, flush the outside of the battery, the bat-
tery compartment, and surrounding areas with clear
water. Coat the battery terminals lightly with petroleum
jelly or a non-conductive grease to retard corrosion.
Keep the battery clean and dry. Moisture accumula-
tion on the battery can lead to more rapid discharge
and early battery failure.
Adjustments to the engine are to be made only by a
Lincoln Service Center or an authorized Field Service
Shop.
bATTERY MAINTENANCE
To access the battery, Remove the 2 screws from the
rear battery tray using a screwdriver or a 3/8" socket.
Slide the battery tray out only far enough to access
the battery terminals.
CHECKING THE ELECTROLYTE LEVEL
If battery cells are low, fill them to the neck of the filler
hole with distilled water and recharge. If one cell is
low, check for leaks.
WARNING
CHARGING THE bATTERY
GASES FROM bATTERY can explode.
• Keep sparks, flame and cigarettes
away from battery.
When you charge, jump, replace, or otherwise con-
nect battery cables to the battery, be sure the polarity
is correct. Improper polarity can damage the charging
circuit. The RANGER® 305LPG positive (+) battery
terminal has a red terminal cover.
To prevent EXPLOSION when:
• INSTALLING A NEW bATTERY — disconnect
negative cable from old battery first and connect
to new battery last.
If you need to charge the battery with an external
charger, disconnect the negative cable first, then the
positive cable before you attach the charger leads.
After the battery is charged, reconnect the positive
battery cable first and the negative cable last. Failure
to do so can result in damage to the internal charger
components. Follow the instructions of the battery
charger manufacturer for proper charger settings and
charging time.
• CONNECTING A bATTERY CHARGER — remove
battery from welder by disconnecting negative
cable first, then positive cable and battery clamp.
When reinstalling, connect Negative cable last.
Keep well ventilated.
• USING A bOOSTER — connect positive lead to
battery first then connect negative lead to nega-
tive battery lead at engine foot.
SERVICING OPTIONAL SPARK
ARRESTOR
bATTERY ACID can burn eyes and
skin.
•
Wear gloves and eye protection
and be careful when working near
battery.
WARNING
• MUFFLER MAY bE HOT
• Follow instructions printed on battery.
• ALLOW ENGINE TO COOL bEFORE INSTALLING
THE SPARK ARRESTER!
------------------------------------------------------------------------
• DO NOT OPERATE ENGINE WHILE INSTALLING
THE SPARK ARRESTER!
Clean every 100 hours.
RANGER® 305LPG
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D-5
D-5
MAINTENANCE
Welder/Generator Maintenance
GFCI RECEPTACLE TESTING AND RESET-
TING PROCEDURE
STORAGE: Store the RANGER® 305LPG in clean,
dry protected areas.
The GFCI receptacle should be properly tested at
least once every month or whenever it is tripped. To
properly test and reset the GFCI receptacle:
CLEANING: Blow out the generator and controls peri-
odically with low pressure air. Do this at least once a
week in particularly dirty areas.
• If the receptacle has tripped, first carefully remove
any load and check it for damage.
• If the equipment has been shut down, it must be
restarted.
bRUSH REMOVAL AND REPLACEMENT: It’s nor-
mal for the brushes and slip rings to wear and darken
slightly. Inspect the brushes when a generator over-
haul is necessary.
• The equipment needs to be operating at high idle
speed and any necessary adjustments made on the
control panel so that the equipment is providing at
least 80 volts to the receptacle input terminals.
• The circuit breaker for this receptacle must not be
tripped. Reset if necessary.
• Push the "Reset" button located on the GFCI recep-
tacle. This will assure normal GFCI operation.
• Plug a night-light (with an "ON/OFF" switch) or other
product (such as a lamp) into the GFCI receptacle
and turn the product "ON".
CAUTION
Do not attempt to Polish slip rings while the
engine is running.
WARNING
• Push the "Test" button located on the GFCI recepta-
cle. The night-light or other product should go
"OFF".
• Push the "Reset" button, again. The light or other
product should go "ON" again.
Service and Repair should only be performed by
Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equip-
ment 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 pre-
cautions.
If the light or other product remains "ON" when the
"Test" button is pushed, the GFCI is not working prop-
erly or has been incorrectly installed (miswired). If
your GFCI is not working properly, contact a qualified,
certified electrician who can assess the situation,
rewire the GFCI if necessary or replace the device.
-----------------------------------------------------------------------
RANGER® 305LPG
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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 3. RECOMMENDED COURSE OF ACTION
This column provides a course of action for the
Possible Cause, generally it states to contact your
local Lincoln Authorized Field Service Facility.
Step 1. LOCATE PROBLEMꢀ(SYMPTOM).
Look under the column labeled “PROBLEM (SYMP-
TOMS)”. This column describes possible symptoms
that the machine may exhibit. Find the listing that
best describes the symptom that the machine is
exhibiting.
If you do not understand or are unable to perform the
Recommended Course of Action safely, contact your
local Lincoln Authorized Field Service Facility.
Step 2. POSSIBLE CAUSE.
The second column labeled “POSSIBLE CAUSE” lists
the obvious external possibilities that may contribute
to the machine symptom.
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.
RANGER® 305LPG
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E-2
E-2
TROUbLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PRObLEMS
(SYMPTOMS)
POSSIbLE
CAUSE
RECOMMENDED
COURSE OF ACTION
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.
3. Faulty engine starter motor.
4. “Battery Circuit” circuit breaker is
tripped.
Engine will "crank" but not start.
1. LPG Fuel Cylinder Empty.
2. Faulty fuel solenoid or faulty PC
board or ignition system.
Engine shuts down shortly after
starting.
1. Low oil level. Change oil and oil filter
And fill to proper level. Start engine
And look for leaks.
I
f all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
2. Faulty oil pressure switch or other
engine component.
3. Low fuel level.
Battery does not stay charged.
1. Faulty battery, replace.
2. Loose connections at battery or
alternator. Clean and tighten connec-
tions.
3. Faulty engine alternator or charg-
er module.
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.
RANGER® 305LPG
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E-3
E-3
TROUbLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PRObLEMS
(SYMPTOMS)
POSSIbLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Engine will not idle down to low 1. Idler switch in High idle position.
speed.
Set switch to Auto.
2. External load on welder or auxil-
iary power. Remove all external
loads.
3. Faulty PC board or idler sole-
noid.
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. "Contactor" switch is in wrong
position. Set to "Welding On"
when welding without a control
cable. Refer to Operations chap-
ter for proper use of this switch.
3. Faulty PC board. Low idle speed
set to low.
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".
I
f all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
2. Faulty PC board.
Engine does not develop full 1. Air filter clogged, clean or Authorized Field Service Facility.
power.
replace.
2. Fouled spark plugs, clean or
replace.
3. Valves out of adjustment.
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.
RANGER® 305LPG
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E-4
E-4
TROUbLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PRObLEMS
(SYMPTOMS)
POSSIbLE
CAUSE
RECOMMENDED
COURSE OF ACTION
No welding power output.
1. Poor work lead connection to
work. Make sure work clamp is
tightly connected to clean base
metal.
2. "Weld Terminals" switch in wrong
position. Place switch in "Weld
Terminals On" position when
welding without control cable.
3. Faulty PC board or welder alterna-
tor.
Welder has output but no control.
1. Poor remote/control cable connec-
tion to 6 pin or 14 pin Amphenol
connector. Check connections.
2. Faulty remote cable or faulty wire
feeder or wire feeder cable.
Replace if necessary.
3. Faulty control potentiometer or PC
board.
I
f all recommended possible areas
Wire feeder does not work when 1. Wire Feeder Power circuit breaker of misadjustment have been
control cable is connected to 14 pin open. Check 42V and 120V checked and the problem persists,
Connector.
beakers and reset if tripped.
2. Faulty control cable. Repair or
replace cable.
Contact your local Lincoln
Authorized Field Service Facility.
3. Faulty wire feeder.
No auxiliary power.
1. Open circuit breakers. Reset
breakers. If breakers keep trip-
ping, reduce power draw.
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.
4. Breakers worn out or not contact-
ing slip rings.
5. Rotor field winding not receiving
flashing current from P.C. board.
6. Open field winding on rotor.
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.
RANGER® 305LPG
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E-5
E-5
TROUbLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PRObLEMS
(SYMPTOMS)
POSSIbLE
CAUSE
RECOMMENDED
COURSE OF ACTION
The welding arc is “cold.” The weld- 1. Make sure the MODE selector
ing arc is not stable or is not satis- switch is in the correct position for
factory. The engine runs normally. the process being used. (For
The auxiliary power is normal.
example, CV-WIRE, PIPE, CC-
STICK.)
2. Make sure the electrode (wire,
gas, voltage, current etc.) is cor-
rect for the process being used.
3. Check for loose or faulty connec-
tions at the weld output terminals
and welding cable connections.
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
4. The welding cables may be too
long or coiled, causing an exces-
sive voltage drop.
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.
RANGER® 305LPG
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F-1
F-1
DIAGRAMS
RANGER® 305LPG
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F-2
F-2
DIAGRAMS
RANGER® 305LPG
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F-3
F-3
DIAGRAMS
RANGER® 305LPG
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F-4
F-4
DIAGRAMS
RANGER® 305LPG
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F-5
F-5
DIAGRAMS
RANGER® 305LPG
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F-6
F-6
DIAGRAMS
RANGER® 305LPG
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F-7
F-7
DIAGRAMS
RANGER® 305LPG
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F-8
F-8
DIAGRAMS
RANGER® 305LPG
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F-9
F-9
DIAGRAMS
RANGER® 305LPG
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F-10
F-10
DIAGRAMS
RANGER® 305LPG
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F-11
F-11
DIAGRAMS
RANGER® 305LPG
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F-12
F-12
DIMENSION PRINT
RANGER® 305LPG
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NOTES
RANGER® 305LPG
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NOTES
RANGER® 305LPG
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•
•
Do not touch electrically live parts or
electrode with skin or wet clothing.
Insulate yourself from work and
ground.
•
•
Keep flammable materials away.
•
•
Wear eye, ear and body protection.
WARNING
Spanish
•
No toque las partes o los electrodos
bajo carga con la piel o ropa moja-
da.
Mantenga el material combustible
fuera del área de trabajo.
Protéjase los ojos, los oídos y el
cuerpo.
AVISO DE
PRECAUCION
French
•
•
Aislese del trabajo y de la tierra.
Ne laissez ni la peau ni des vête-
ments mouillés entrer en contact
avec des pièces sous tension.
Isolez-vous du travail et de la terre.
•
•
Gardez à l’écart de tout matériel
inflammable.
•
•
Protégez vos yeux, vos oreilles et
votre corps.
ATTENTION
•
•
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 electro-
dos com a pele ou roupa molhada.
Isole-se da peça e terra.
•
Mantenha inflamáveis bem guarda-
dos.
•
Use proteção para a vista, ouvido e
corpo.
ATENÇÃO
Japanese
Chinese
Korean
Arabic
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE
CONSUMABLES TO BE USED AND FOLLOWYOUR EMPLOYER’S SAFETY PRACTICES.
SE RECOMIENDA LEERY ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE
ESTE EQUIPOY 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 ELEKTRO-
DENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS
SIND EBENFALLS ZU BEACHTEN.
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•
•
Keep your head out of fumes.
Use ventilation or exhaust to
remove fumes from breathing zone.
•
•
Turn power off before servicing.
•
•
Do not operate with panel open or
guards off.
WARNING
Spanish
•
•
Los humos fuera de la zona de 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 l’entre-
tien.
•
•
N’opérez pas avec les panneaux
ouverts ou avec les dispositifs de
protection enlevés.
•
•
Gardez la tête à l’écart des fumées.
Utilisez un ventilateur ou un aspira-
teur pour ôter les fumées des zones
de travail.
ATTENTION
German
Strom vor Wartungsarbeiten
abschalten! (Netzstrom völlig öffnen;
Maschine anhalten!)
Anlage nie ohne Schutzgehäuse
oder Innenschutzverkleidung in
Betrieb setzen!
•
•
Vermeiden Sie das Einatmen von
Schweibrauch!
Sorgen Sie für gute Be- und
Entlüftung des Arbeitsplatzes!
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
Chinese
Korean
Arabic
LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES
DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.
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• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEBꢀSITE: www.lincolnelectric.com
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