Lincoln Electric CLASSIC 300G 10912, CLASSIC 300G 11135, CLASSIC 300G IM659-B, CLASSIC 300G Operator's Manual

Page 1

Safety Depends on You

Lincoln arc welding equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful operation on your part. DO NOT INSTALL,

OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.

And, most importantly, think before you act and be careful.

CLASSIC

For Machines with Code Numbers 10659,10912,11135

300G

IM659-B

December, 2004

OPERATOR’S MANUAL

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

NRTL/C

Page 2

SAFETY

WARNING

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

The Above For Diesel Engines

ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.

Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box 351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.

BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

The Above For Gasoline Engines

FOR ENGINE powered equipment.

1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running.

____________________________________________________

1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.

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1.c. Do not add the fuel near an open flame welding arc or when the engine is running. Stop the engine and allow it to cool before refueling to prevent spilled fuel from vaporizing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated.

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1.d. Keep all equipment safety guards, covers and devices in position and in good repair.Keep hands, hair, clothing and tools away from V-belts, gears, fans and all other moving parts when starting, operating or repairing equipment.

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1.e. In some cases it may be necessary to remove safety

guards to perform required maintenance. Remove guards only when necessary and replace them when the maintenance requiring their removal is complete. Always use the greatest care when working near moving parts.

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1.f. Do not put your hands near the engine fan. Do not attempt to override the governor or idler by pushing on the throttle control rods while the engine is running.

1.h. To avoid scalding, do not remove the radiator pressure cap when the engine is hot.

ELECTRIC AND MAGNETIC FIELDS may be dangerous

2.a. Electric current flowing through any conductor causes localized Electric and Magnetic Fields (EMF). Welding current creates EMF fields around welding cables and welding machines

2.b. EMF fields may interfere with some pacemakers, and welders having a pacemaker should consult their physician before welding.

2.c. Exposure to EMF fields in welding may have other health effects which are now not known.

2.d. All welders should use the following procedures in order to minimize exposure to EMF fields from the welding circuit:

2.d.1.

Route the electrode and work cables together - Secure them with tape when possible.

2.d.2. Never coil the electrode lead around your body.

2.d.3. Do not place your body between the electrode and

work cables. If the electrode cable is on your right side, the work cable should also be on your right side.

___________________________________________________

1.g. To prevent accidentally starting gasoline engines while turning the engine or welding generator during maintenance work, disconnect the spark plug wires, distributor cap or magneto wire as appropriate.

2.d.4. Connect the work cable to the workpiece as close as possible to the area being welded.

2.d.5. Do not work next to welding power source.

Mar ‘95

Page 3

SAFETY

ELECTRIC SHOCK can kill.

3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free

gloves to insulate hands.

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.

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:

• Semiautomatic DC Constant Voltage (Wire) Welder.

• DC Manual (Stick) Welder.

• AC Welder with Reduced Voltage Control.

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.

ARC RAYS can burn.

4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.

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.

FUMES AND GASES can be dangerous.

5.a. Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases.When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. When

welding with electrodes which require special ventilation such as stainless or hard facing (see instructions on container or MSDS) or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and below Threshold Limit Values (TLV) using local exhaust or mechanical ventilation. In confined spaces or in some circumstances, outdoors, a respirator may be required. Additional precautions are also required when welding on galvanized steel.

3.f.

Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition. Replace damaged insulation.

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.

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.b.

Do not weld in locations near chlorinated hydrocarbon coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors form phosgene, a highly toxic gas, and other irritating products.

5.c. Shielding gases used for arc welding can displace air and cause injury or death. Always use enough ventilation, especially in confined areas, to insure breathing air is safe.

5.d. Read and understand the manufacturer’s instructions for this

equipment and the consumables to be used, including the material safety data sheet (MSDS) and follow your employer’s safety practices. MSDS forms are available from your welding distributor or from the manufacturer.

5.e. Also see item 1.b.

vapors

Mar ‘95

Page 4

iii

SAFETY

iii

WELDING SPARKS can cause fire or explosion.

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.

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.

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.

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.

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 been “cleaned”. For information, purchase “Recommended Safe Practices for the Containers and Piping That Have Held Hazardous Substances”, AWS F4.1 from the American Welding Society

(see address above).

6.e. Vent hollow castings or containers before heating, cutting or welding. They may explode.

Sparks and spatter are thrown from the welding arc. Wear oil

6.f. 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.

6.g. Connect the work cable to the work as close to the welding area as practical. Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains, crane cables or other alternate circuits. This can create fire hazards or overheat lifting chains or cables until they fail.

6.h. Also see item 1.c.

Remember that welding sparks and hot

though

they have

Preparation

for Welding and Cutting of

CYLINDER may explode if damaged.

7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used and properly operating regulators designed for the gas and

pressure used. All hoses, fittings, etc. should be suitable for the application and maintained in good condition.

7.b. Always keep cylinders in an upright position securely chained to an undercarriage or fixed support.

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.

7.d. Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder.

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.

FOR ELECTRICALLY powered equipment.

8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment.

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.

Mar ‘95

Page 5

SAFETY

PRÉCAUTIONS DE SÛRETÉ

Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suivantes:

Sûreté Pour Soudage A L’Arc

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.

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.

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.

6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles.

7. Quand on ne soude pas, poser la pince à une endroit isolé de la masse. Un court-circuit accidental peut provoquer un échauffement et un risque d’incendie.

8. S’assurer que la masse est connectée le plus prés possible de la zone de travail qu’il est pratique de le faire. Si on place la masse sur la charpente de la construction ou d’autres endroits éloignés de la zone de travail, on augmente le risque de voir passer le courant de soudage par les chaines de levage, câbles de grue, ou autres circuits. Cela peut provoquer des risques d’incendie ou d’echauffement des chaines et des câbles jusqu’à ce qu’ils se rompent.

9. Assurer une ventilation suffisante dans la zone de soudage. Ceci est particuliérement important pour le soudage de tôles galvanisées plombées, ou cadmiées ou tout autre métal qui produit des fumeés toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenant d’opérations de dégraissage, nettoyage ou pistolage. La chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs du solvant pour produire du phosgéne (gas fortement toxique) ou autres produits irritants.

11. Pour obtenir de plus amples renseignements sur la sûreté, voir le code “Code for safety in welding and cutting” CSA Standard W 117.2-1974.

2. Dans le cas de travail au dessus du niveau du sol, se protéger contre les chutes dans le cas ou on recoit un choc. Ne jamais enrouler le câble-électrode autour de n’importe quelle partie du corps.

3. Un coup d’arc peut être plus sévère qu’un coup de soliel, donc:

a. Utiliser un bon masque avec un verre filtrant approprié

ainsi qu’un verre blanc afin de se protéger les yeux du rayonnement de l’arc et des projections quand on soude ou quand on regarde l’arc.

b. Porter des vêtements convenables afin de protéger la

peau de soudeur et des aides contre le rayonnement de l‘arc.

c. Protéger l’autre personnel travaillant à proximité au

soudage à l’aide d’écrans appropriés et non-inflammables.

4. Des gouttes de laitier en fusion sont émises de l’arc de soudage. Se protéger avec des vêtements de protection libres de l’huile, tels que les gants en cuir, chemise épaisse, pantalons sans revers, et chaussures montantes.

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.

PRÉCAUTIONS DE SÛRETÉ POUR LES MACHINES À SOUDER À TRANSFORMATEUR ET À REDRESSEUR

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.

2. Autant que possible, I’installation et l’entretien du poste seront effectués par un électricien qualifié.

3. Avant de faires des travaux à l’interieur de poste, la debrancher à l’interrupteur à la boite de fusibles.

4. Garder tous les couvercles et dispositifs de sûreté à leur place.

Mar. ‘93

Page 6

for selecting a QUALITY product by Lincoln Electric. We want you

Thank You

to take pride in operating this Lincoln Electric Company product

••• as much pride as we have in bringing this product to you!

Please Examine Carton and Equipment For Damage Immediately

When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment is received.

Please record your equipment identification information below for future reference. This information can be found on your machine nameplate.

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 faxing: 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

“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:

WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then

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.

Page 7

TABLE OF CONTENTS

Page

Installation .......................................................................................................Section A

Technical Specifications ........................................................................................A-1

Safety Precautions.................................................................................................A-2

Pre-Operation Installation......................................................................................A-2

Exhaust Spark Arrester ...................................................................................A-2

Location/Ventilation.........................................................................................A-2

Machine Grounding.........................................................................................A-2

Lift Bail ............................................................................................................A-2

Trailers ............................................................................................................A-2

Polarity Control and Cable Sizes ....................................................................A-3

Pre-Operation Service ...........................................................................................A-3

Oil....................................................................................................................A-3

Fuel .................................................................................................................A-3

Cooling System ...............................................................................................A-3

Battery Charging .............................................................................................A-4

Operation .........................................................................................................Section B

General Description...............................................................................................B-1

Design Features ....................................................................................................B-1

Starting The GM 3.0L Engine..........................................................................B-2

Stopping the engine ........................................................................................B-2

Welder Operation...................................................................................................B-2

Duty Cycle.......................................................................................................B-2

Control of Welding Current..............................................................................B-3

Idler Operation ................................................................................................B-3

Auxiliary Power ...............................................................................................B-3

Throttle Body Deicing......................................................................................B-3

Accessories.....................................................................................................Section C

Optional Equipment (Field Installed) .....................................................................C-1

Maintenance ....................................................................................................Section D

Safety Precautions ................................................................................................D-1

General Instructions ..............................................................................................D-1

Cooling System .....................................................................................................D-1

Bearings ................................................................................................................D-1

Commutator and Brushes .....................................................................................D-1

Idler Control Maintenance .....................................................................................D-2

Nameplates ...........................................................................................................D-2

Purging Air from Fuel System................................................................................D-2

Engine Maintenance .............................................................................................D-2

Engine Service Chart ............................................................................................D-3

Troubleshooting..............................................................................................Section E

Safety Precautions.................................................................................................E-1

Troubleshooting ..............................................................................................E-2,E-3

Electronic Idler Troubleshooting Guide...........................................................E-4,E-5

Troubleshooting .....................................................................................E-5, E-6,E-7

Diagrams ..........................................................................................................Section F

Wiring Diagram (Classic 300G) .......................................................................F-1,F-2

Dimension Print......................................................................................................F-3

Parts List ......................................................................................................P379 Series

Page 8

A-1

INSTALLATION

TECHNICAL SPECIFICATIONS – CLASSIC 300G (K1754-1)

INPUT - GASOLINE ENGINE

Make/Model Description Speed (RPM) Displacement Ignition Capacities

cu. in. (Ltrs.) System

A-1

4 Cylinder High Energy 57 Ltrs.

GM 4 Cycle

3.0 Liter Water-Cooled Full Load 1800 Distributor Type Oil: 4.5 Qts.

Gasoline Engine 4.3 Ltrs.

Classic 300G

(K1754-1) Block/Crankcase Low Idle 1360

Cast Iron Cylinder 183.0(3.0) Electronic

53.0 HP @ 1800 RPM

High Idle 1800 Delco Voyager Fuel: 15 gal.

Cooling 9.9 Qts.

RATED OUTPUT - WELDER

DESCRIPTION

300 Amp DC Welder

All Copper Windings

Pure DC Power

Generator

RATED DC OUTPUT*

VOLTS @ RATED AMPS

30V @ 250A

NEMA Rating

32V @ 300A

DUTY CYCLE

100%

60%

DC CURRENT RANGE

Fine Adjustment in each Range

40-350 Amps

OUTPUT - GENERATOR

Auxiliary Power

3000 Watts, 60 Hz. AC

(26 Amps @ 115V), (13 Amps @ 230V)

9.4 Ltrs.

ENGINE OPERATING LOAD FUEL CONSUMPTION

Low Idle (1360 RPM)-No Load

High Idle (1800 RPM)-No Load

AC Auxiliary-115 Volts-26 Amps

50 Amps @ 22 Volts @ 60% Duty Cycle

100 Amps @ 24 Volts @ 60 % Duty Cycle

150 Amps @ 26 Volts @ 60% Duty Cycle 200 Amps @ 28 Volts @ 60 % Duty Cycle 250 Amps @ 30 Volts @ 60 % Duty Cycle 300 Amps @ 32 Volts @ 60 % Duty Cycle

250 Amps @ 30 Volts @ 100 % Duty Cycle

.89 gal/hr (3.37 ltrs/hr)

1.32 gal/hr (5.00 ltrs/hr)

1.42 gal/hr (5.32 ltrs/hr)

1.24 gal/hr (4.70 ltrs/hr)

1.27 gal/hr (4.82 ltrs/hr)

1.33 gal/hr (5.04 ltrs/hr)

1.47 gal/hr (5.57 ltrs/hr)

1.66 gal/hr (6.27 ltrs/hr)

1.83 gal/hr (6.91 ltrs/hr)

2.15 gal/hr (8.12 ltrs/hr)

PHYSICAL DIMENSIONS

HEIGHT WIDTH DEPTH WEIGHT

40.94** in. 24.00 in. 66.91in.

1039.9 mm 609.6 mm 1700 mm 1330 lbs. (603kg.)

**Top of enclosure, add 8.0” (203.2mm) for exhaust

(1) 115V will operate either 60 Hz. or 50/60 Hz. power tools, lights etc.

* Based on a 10 min. period.

CLASSIC 300G

Page 9

A-2

SAFETY PRECAUTIONS

INSTALLATION

A-2

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.

------------------------------------------------------------------------

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or

electrode with skin or wet clothing.

• Insulate yourself from work and

ground

• Always wear dry insulating gloves.

------------------------------------------------------------------------

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or

vent exhaust outside.

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MOVING PARTS can injure.

• Do not operate with doors open or guards off.

• Stop engine before servicing.

• Keep away from moving parts.

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See additional warning information at the front of this operator’s manual.

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PRE-OPERATION INSTALLATION

EXHAUST SPARK ARRESTER

CAUTION

DO NOT MOUNT OVER COMBUSTIBLE SURFACES.

Where there is a combustible surface directly under stationary or fixed electrical equipment, the surface shall be covered with a steel plate at least .06”(1.6mm) thick, which shall extend not more than

5.90”(150mm) beyond the equipment on all sides.

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MACHINE GROUNDING

According to the United States National Electrical Code, the frame of this portable generator is not required to be grounded and is permitted to serve as the grounding means for cord connected equipment plugged into its receptacle.

Some state, local, or other codes or unusual operating circumstances may require the machine frame to be grounded. It is recommended that you determine the extent to which such requirements may apply to your particular situation and follow them explicitly. A machine grounding stud marked with the symbol

is provided on the welding generator frame foot. In general, if the machine is to be grounded, it should be connected with a #8 or larger copper wire to a solid earth ground such as a metal water pipe going into the ground for at least ten feet and having no insulated joints, or to the metal framework of a building which has been effectively grounded. The U.S. National Code lists a number of alternate means of grounding electrical equipment.

Some federal, state or local laws may require that 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 must be installed and properly maintained.

CAUTION

Use of an incorrect arrester may lead to engine damage or performance loss. Contact the engine manufacturer for specific recommendations.

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LOCATION / VENTILATION

Always operate the welder with the doors closed. Leaving the doors open changes the designed air flow and may cause overheating.

The welder should be located to provide an unrestricted flow of clean, cool air. Also, locate the welder so that engine exhaust fumes are properly vented to an outside area.

LIFT BAIL

A lift bail is provided for lifting with a hoist.

WARNING

• Lift only with equipment of adequate lifting capacity.

• Be sure machine is stable when lifting.

• Do not lift this machine using lift bail if it is equipped with a heavy accessory such as trailer or gas cylinder.

FALLING • Do not lift machine if lift bail is

EQUIPMENT can damaged.

cause injury. • Do not operate machine while

suspended from lift bail.

CLASSIC 300G

Page 10

A-3

INSTALLATION

TRAILER (See ACCESSORY Section)

If the user adapts a non-Lincoln trailer, he must assume responsibility that the method of attachment and usage does not result in a safety hazard nor damage the welding equipment. Some of the factors to be considered are as follows:

1. 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 ensure stability 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, likely maintenance.

5. Conformance with federal, state and local laws.

(1)

Consult applicable federal, state and local laws regarding specific

requirements for use on public highways.

(1)

WARNING

VEHICLE MOUNTING Improperly mounted concentrated loads may

cause unstable vehicle handling and tires or other components to fail.

• 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.

• Do not exceed maximum rated loads for components such as suspension, axles and tires.

• Mount equipment base to metal bed or frame of vehicle.

• Follow vehicle manufacturer’s instructions.

------------------------------------------------------------------------

A-3

When welding at a considerable distance from the welder, be sure you use ample size welding cables.

RECOMMENDED COPPER CABLE SIZES

Amps Duty Cycle 60.96 m 200 to76.2 m

250 100% 1 1/0

300 60% 1/0 2/0

Cables Sizes for Combined Length of Electrode Plus Work Cable

Up to 200 ft. 200 to 250 ft.

PRE-OPERATION SERVICE

CAUTION

READ the engine operating and maintenance instruc-

tions supplied with this machine.

WARNING

• Stop engine while fueling.

• Do not smoke when fueling.

• Keep sparks and flame away from tank.

• Do not leave unattended while fueling.

• Wipe up spilled fuel and allow

GASOLINE

can cause fire or explosion.

fumes to clear before starting engine.

• Do not overfill tank, fuel expan-

sion may cause overflow.

GASOLINE FUEL ONLY

------------------------------------------------------------------------

OIL

This unit is supplied from the factory with the engine crankcase filled with a high quality SAE 10W/30 oil. This oil should be acceptable for most typical ambient temperatures. Consult the engine operation manual for specific engine manufacturer’s recommendations. Upon receipt of the welder, check the engine dipstick to be sure the oil is at the “full” mark. DO NOT overfill.

POLARITY CONTROL AND CABLE SIZES

With the engine off, route the electrode and work cables through the strain relief bracket on the base and connect to the studs located below the fuel tank mounting rail. (See size recommendations below.) For Positive polarity, connect the electrode cable to the terminal marked “+”. For Negative polarity, connect the electrode cable to the “-” stud. These connections should be checked periodically and tightened if necessary.

FUEL

Fill the fuel tank with the grade of fuel recommended in the Engine Operator’s manual. Make sure the fuel valves on the sediment bowl and the water separator are in the open positions.

COOLING SYSTEM

The radiator has been filled at the factory with a 50-50 mixture of ethylene glycol antifreeze and water. Check the radiator level and add a 50-50 solution as needed (see engine manual or antifreeze container for alternate antifreeze recommendations)

CLASSIC 300G

Page 11

A-4

INSTALLATION

BATTERY CHARGING

WARNING

GASES FROM BATTERY can explode.

• Keep sparks, flame and cigarettes away.

BATTERY ACID can burn eyes and skin.

• Wear gloves and eye protection and be careful when boosting, charging or working near battery.

To prevent EXPLOSION when:

• Installing a new battery - disconnect the negative cable from the old battery first and connect the negative cable to the new battery last.

• Connecting a battery charger remove the battery from the welder by disconnecting the negative cable first, then the positive cable and battery clamp. When reinstalling, connect the negative cable last.

• Using a booster - connect the positive lead to the battery first, then connect the negative lead to the ground lead on the base.

A-4

To prevent ELECTRICAL DAMAGE when:

• Installing a new battery.

• Using a booster.

Use correct polarity - Negative Ground.

• To prevent BATTERY DISCHARGE, if you have

an ignition switch, turn it off when engine is not running.

• To prevent BATTERY BUCKLING, tighten nuts on

battery clamp until snug.

------------------------------------------------------------------------

The Classic 300G is equipped with a wet charged battery. The charging current is automatically regulated when the battery is low (after starting the engine) to a trickle current when the battery is fully charged.

When replacing, jumping or otherwise connecting the battery to the battery cables, the proper polarity must be observed. This system is NEGATIVE GROUND.

CLASSIC 300G

Page 12

B-1

OPERATION

B-1

SAFETY PRECAUTIONS

WARNING

------------------------------------------------------------------------

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or

electrode with skin or wet clothing.

• Insulate yourself from work and

ground

• Always wear dry insulating gloves.

------------------------------------------------------------------------

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or

vent exhaust outside.

----------------------------------------------------

MOVING PARTS can injure.

• Do not operate with doors open or

guards off.

• Stop engine before servicing.

• Keep away from moving parts.

------------------------------------------------------------------------

See additional warning information at the

front of this operator’s manual.

Operate the welder with the doors closed. Leaving the doors open changes the designed air flow and can cause overheating.

CAUTION

DO NOT MOUNT OVER COMBUSTIBLE SURFACES.

5.90”(150mm) beyond the equipment on all sides.

-----------------------------------------------------------------------The Classic 300G uses the GM 3.0L industrial water-

cooled gasoline engine.

RATED OUTPUT DUTY CYCLE

250A @ 30V 300A @ 32V

100%

60%

DESIGN FEATURES

Control Panel

Both the engine and the welder controls are located on one recessed panel at the exciter end of the machine. The welder controls consist of a five step “Current Range Selector” switch and a “Fine Current Adjustment” rheostat. The welder is equipped with a “Start” button, an “Ignition” switch, an “Idler” control switch, and a “Glow Plug” button for easier cold weather starting.

The control panel also contains an engine temperature gauge, a battery charging ammeter, an oil pressure gauge, two three prong grounding type receptacles and four circuit breakers for auxiliary power.

GENERAL DESCRIPTION

The Classic®300G is a heavy duty, engine driven, DC arc welding power source, capable of providing constant current output for stick welding or DC TIG welding. This welder is wound with all copper coils, rated at 300 amps/32 Volts, and provides other Classic features such as improved door latches and stainless hinges. With the

addition of the optional K623-1 Wire Feed Module™the Classic 300G will provide constant voltage output for running the LN-7, LN-23P, or LN-25 wire feeders. The optional K924-4 Remote Control Kit (field installed) provides a switch, or K924-5 Remote Control Kits provide a receptacle and a remote control rheostat for remote fine current and open circuit voltage adjustment.

The Classic 300G has an electronic Engine Protection system. In the event of sudden low oil pressure or high coolant temperature, the engine immediately shuts down. The Classic 300G has a current range of 40-350 DC amps with output ratings as follows: These units are also capable of providing 3 kVA of 115/230 volts of 60 cycle AC auxiliary power.

All Copper Windings - For long life and dependable operation.

Engine Idler Control - The Classic 300G is equipped with an electronic automatic engine idle control. It automatically increases and decreases engine speed when

starting and stopping welding or using auxiliary power. A built-in time delay permits changing electrodes

before the engine slows to its low idle speed. The “Idler” control switch on the panel locks the idler in high idle position when desired.

Auxiliary Power - 3.0 kVA of nominal 115/230V, 60Hz, AC. Output voltage is maintained within ± 10% at all loads up to rated capacity. (See Optional Features for Power Plug Kit.)

Welder Enclosure - The complete welder is rubber mounted on a rugged steel “C” channel base.

The output terminals are placed at the side of the machines so that they are protected by the door. The output terminals are labeled (+) and (-).

Cranking System - A 12 volt electric starter is standard.

CLASSIC 300G

Page 13

B-2

Air Cleaner - Heavy duty two stage dry type.

Muffler-A Muffler and stainless steel exhaust outlet

elbow are standard.

Engine Hour Meter - A meter to record hours of operation.

Engine Protection - The system shuts the engine down in the event of sudden low oil pressure or high coolant temperature. A warning light on the control panel will indicate such a fault. To reset the engine for restarting, turn the ignition switch off then on.

High Idle RPM (OCV) Adjustment- A potentiometer is mounted on the output rail that allows the operator to adjust the high idle engine speed between 1700 and 1800 RPM’S in 20 RPM increments. This is to allow further adjustment of the OCV. Total OCV adjustment range is about 10 Volts.

STARTING THE CLASSIC 300G GM 3.0L GASOLINE ENGINE

OPERATION

B-2

• When hauling the welder between job sites, close the fuel feed valve beneath the fuel tank.

• If the fuel supply is cut off or runs out while the fuel pump is operating, air may be entrapped in the fuel distribution system. If this happens, bleeding of the fuel system may be necessary. Refer to the instructions in the MAINTENANCE section of this manual.

REFER TO THE ENGINE

Operation and maintenance manual for additional information on the engine supplied with this welder.

WELDER OPERATION

WARNING

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or electrode with skin or wet clothing.

• Insulate yourself from work and ground.

1. Turn the “IDLER” switch to “HIGH”.(Optional )

2. Turn the “IGNITION” switch to “ON”.

3. Press the Start button. When the engine starts running, release button. If the engine fails to start in 20 seconds, wait 30 seconds and repeat the above procedure.

4. Observe the oil pressure. If no pressure shows within 30 seconds, stop the engine and consult the engine operating manual. To stop the engine, turn the “IGNITION” switch to “OFF”.

5. Allow the engine to run at high idle speed for several minutes to warm up. If idle control switch is left in “Auto” position, engine will run at 1600 RPM until engine coolant temperature reaches 130 F.

WARNING

Under NO fluids be used!

-------------------------------------------------------------------------

STOPPING THE ENGINE

• Turn the “IGNITION” switch to “OFF”

conditions should ether or other starting

FUMES & GASES can be dangerous.

• Keep your head out of the fumes.

• Use ventilation or exhaust to remove fumes from breathing zone.

WELDING SPARKS can cause fire or explosion.

• Keep flammable material away.

ARC RAYS can burn.

• Wear eye, ear, and body protection.

DUTY CYCLE

The NEMA output rating of the Classic 300G is 300 amperes at 32 arc volts on Specifications in this manual Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for six minutes out of every ten minute period.

a 60% duty cycle (consult

for alternate ratings).

• At the end of each day’s welding, check the crankcase oil level, drain accumulated dirt and water from the sediment bowl under the fuel tank and refill the fuel tank to minimize moisture condensation in the tank. Also, running out of fuel tends to draw dirt into the fuel system.

CLASSIC 300G

Page 14

B-3

CONTROL OF WELDING CURRENT

CAUTION

OPERATION

2. In the “Auto” / position, the engine

operates as follows:

B-3

DO NOT TURN THE “CURRENT RANGE SELECTOR” WHILE WELDING because the current may arc between the contacts and damage the switch.

------------------------------------------------------------------------

The “Current Range Selector” provides five overlapping current ranges. The “Fine Current Adjustment” adjusts the current from minimum to maximum within each range. Open circuit voltage is also controlled by the “Fine Current Adjustment” permitting control of the arc characteristics.

A high open circuit voltage setting provides the soft “buttering” arc with best resistance to pop-outs preferred for most welding. To get this characteristic, set the “Current Range Selector” to the lowest setting that still provides the current you need and set the “Fine Current Adjustment” near maximum. For example: to obtain 175 amps and a soft arc, set the “Current Range Selector” to the 190-120 position and then adjust the “Fine Current Adjustment” for 175 amps.

When a forceful “digging” arc is required, usually for vertical and overhead welding, use a higher “Current Range Selector” setting and lower open circuit voltage. For example: to obtain 175 amps and a forceful arc, set the “Current Range Selector” to the 240-160 position and the “Fine Current Adjustment” setting to get 175 amps.

Some arc instability may be experienced with EXX10 electrodes when trying to operate with long arc techniques at settings at the lower end of the open circuit voltage range.

• When welding or drawing power for lights or tools

(approximately 100-150 watts minimum) from the receptacles, the engine operates at high idle speed.

• When welding ceases or the power load is turned off,

a preset time delay of about 10 seconds starts. This time delay cannot be adjusted.

• If the welding or power load is not re-started before

the

end of the time delay

reduces the engine to low idle speed.

AUXILIARY POWER

The AC auxiliary power, supplied as a standard, has a rating of 3.0 kVA of 115/230 VAC (60 hertz).

With the 3.0 kVA, 115/230 VAC auxiliary power, one 115V duplex and one 230V duplex, grounding type receptacle are provided. The circuit is protected with circuit breakers.

The rating of 3.0 kVA permits a maximum continuous current of 13 amps to be drawn from the 230 volt duplex receptacle. Or a total of 26 amps can be drawn from the 115 volt duplex receptacle. The 115 volt duplex receptacle has a configuration which permits 20 amps to be drawn from either half. The total combined load of all receptacles is not to exceed 3.0 kVA.

An optional power plug kit is available. When this kit is specified, the customer is supplied with a plug for each receptacle.

THROTTLE BODY DEICING SYSTEM

the throttle body controller

CAUTION

DO NOT attempt to set the “Current Range Selector” between the five points designated on the nameplate.

------------------------------------------------------------------------

These switches have a spring loaded cam which almost eliminates the possibility of setting this switch between the designated points.

IDLER CONTROL OPERATION

The idle is controlled by the “Idler” toggle switch on the welder control panel. The switch has two positions as follows:

1. In the “High” position, and the engine goes to high idle speed. The speed is controlled by the governor.

The welder has been designed to allow continuous year-round operation. Engine coolant is channeled through the Throttle Bottle Injector (TBI) housing to prevent the build up of ice on the TBI throat around the throttle plate. The electronic controller is programmed to automatically compensate for the build up of ice on the throttle plate. There will be no noticeable change in the operation of the welder should icing develop. On start-up, there is a possibility for the engine to overspeed ( to a maximum of 2000 RPM ) for up to 10 seconds after throttle body icing conditions have occurred.The electronic governor will correct itself for the new operating conditions and normal operation will resume.

CLASSIC 300G

Page 15

C-1

ACCESSORIES

OPTIONAL EQUIPMENT (Field Installed)

C-1

Accessory Set (K704) - Includes 35 ft. (10.7m) elec-

trode and 30 ft. (9.1m) work cables, headshield, work clamp and electrode holder.

WARNING

Pipe Thawing with an arc welder can cause fire, explosion, damage to electric wiring or to the arc welder if done improperly. The use of an arc welder for pipe thawing is not approved by the CSA, nor is it recommended or supported by Lincoln Electric.

------------------------------------------------------------------------

Power Plug Kit (K802D) - A 20 amp power plug kit for the auxiliary power receptacles is available. (Provides a plug for each receptacle.)

Remote Control Kit (K924-4) - Contains switch, receptacle, remote control rheostat, and 100 ft (30.5m) cable for adjusting the OCV at the welding site.

Trailer (K953-1) - Two-wheeled trailer with optional fender and light package. For highway use, consult applicable federal, state, and local laws regarding possible additional requirements. Their is a choice of 2 hitches, a fender & a light package. Order:

K953-1 Trailer K958-1 Ball Hitch K958-2 Lunette Eye Hitch K959-1 Fender & Light Kit. K965-1 Cable Storage Rack

Wire Feed Module (K623-1) - Provides constant

voltage (CV) output with improved arc stability for Innershield welding. Excellent for MIG welding. Recommended wire feeders are the LN-7, LN-23P and LN-25.

GFCI Receptacle Kit (K1690-1) - Includes one UL approved 115V ground fault circuit interrupter duplex type receptacle and installation instructions. Replaces the factory installed 115V duplex receptacle. Each receptacle of the GFCI duplex is rated at 20 amps. Maximum total current from the GFCI duplex is limited to 20 amps.

TIG Module - Portable, high frequency unit with gas valve for TIG welding. Rated at 300 amps / 60% duty cycle. (Request Publication E3.205).

Order K930-2

Control Cable - Connects TIG Module to the Classic

300G.

Order K936-4

Arc Start Switch - Provides on/off control at the TIG

Module.

Order K814

Contactor Kit - For use with TIG Module. Order K938-1

Control Cable Extension - Allows the TIG Module to

be operated at distances up to 200 ft. from the power source. Availiable length: 45 ft. (13.7m).

Order K937-45

Remote Control Kit (K924-5) - Contains a remote

control rheostat, and 100 ft. (30.5m) cable for adjusting the OCV at the welding site.

Remote Control Kit (K2464-1) - Contains a remote control rheostat (for adjusting the CC “STICK” OCV), remote control potentiometer (for adjusting the CV “WIRE” OCV), and 100ft.(30.5m) cable.

Water Valve Kit - For use with a water-cooled TIG Torch. Installs inside of TIG Module.

Order K844-1

K2261-1 OIL DRAIN KIT - Includes ball valve, hose

and clamp.

CLASSIC 300G

Page 16

D-1

MAINTENANCE

D-1

SAFETY PRECAUTIONS

WARNING

Have qualified personnel do the maintenance work. Turn the engine off before working inside the machine. In some cases, it may be necessary to remove safety guards to perform required maintenance. Remove guards only when necessary and replace them when the maintenance requiring their removal is complete. Always use the greatest care when working near moving parts.

Do not put your hands near the engine cooling blower fan. If a problem cannot be corrected by following the instructions, take the machine to the nearest Lincoln Field Service Shop.

-----------------------------------------------------------------------

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or

electrode with skin or wet clothing.

• Insulate yourself from work and

ground

• Always wear dry insulating gloves.

------------------------------------------------------------------------

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or

vent exhaust outside.

------------------------------------------------------------------------

MOVING PARTS can injure.

• Do not operate with doors open or

guards off.

• Stop engine before servicing.

• Keep away from moving parts.

------------------------------------------------------------------------

See additional warning information at front of this operator’s manual.

-----------------------------------------------------------

GENERAL INSTRUCTIONS

• Blow out the welder and controls with an air hose at

least once every two months. In particularly dirty locations, this cleaning may be necessary once a week. Use low pressure air to avoid driving dirt into the insulation.

• ”Current Range Selector” contacts should not be

greased. To keep the contacts clean, rotate the current control through its entire range frequently. Good practice is to turn the handle from maximum to minimum setting twice each morning before starting to weld.

• When necessary, remove the sediment bowl, if so

equipped, from beneath the fuel tank and clean out any accumulated dirt and water.

• Follow the engine service schedule in this manual

and the detailed maintenance and troubleshooting in the engine manufacturer’s manual.

COOLING SYSTEM

The Classic 300G is equipped with a pressure radiator. Keep the radiator cap tight to prevent loss of coolant. Clean and flush the cooling system periodically to prevent clogging the passage and overheating the engine. When antifreeze is needed, always use the permanent type. Capacity = 9.9 qts (9.4 Ltrs.).

BEARINGS

This welder is equipped with a double-shielded ball bearing having sufficient grease to last indefinitely under normal service. Where the welder is used constantly or in excessively dirty locations, it may be necessary to add one half ounce of grease per year. A pad of grease one inch wide, one inch long, and one inch high weighs approximately one half ounce. Overgreasing is far worse than insufficient greasing.

When greasing the bearings, keep all dirt out of the area. Wipe the fittings completely clean and use clean equipment. More bearing failures are caused by dirt introduced during greasing than from insufficient grease.

COMMUTATOR AND BRUSHES

WARNING

Uncovered rotating equipment can be dangerous. Use care so your hands, hair, clothing or tools do not catch in the rotating parts. Protect yourself from particles that may be thrown out by the rotating armature when stoning the commutator.

------------------------------------------------------------------------

Shifting of the commutator brushes may result in:

- Change in machine output

- Commutator damage

- Excessive brush wear

Periodically inspect the commutator, slip rings, and brushes by removing the covers. DO NOT remove or replace these covers while the machine is running. Commutators and slip rings require little attention. However, if they are black or appear uneven, have them cleaned by an experienced maintenance man using fine sandpaper or a commutator stone. Never use emery cloth or paper for this purpose.

• Put a drop of oil on the “Current Range Selector”

shaft at least once every month.

CLASSIC 300G

Page 17

D-2

Replace brushes when they wear within 1/4” of the pigtail. A complete set of replacement brushes should be kept on hand. Lincoln brushes have a curved face to fit the commutator. Have an experienced maintenance man seat these brushes by lightly stoning the commutator as the armature rotates at full speed until contact is made across the full face of the brushes. After stoning, blow out the dust with low pressure air.

To seat slip ring brushes, position the brushes in place. Then slide one end of a piece of fine sandpaper between slip rings and brushes with the coarse side against the brushes. With slight additional finger pressure on top of the brushes, pull the sandpaper around the circumference of the rings - in direction of rotation only - until brushes seat properly. In addition, stone slip ring with a fine stone. Brushes must be seated 100%.

Arcing or excessive exciter brush wear indicates a possible misaligned shaft. Have an authorized Field Service Shop check and realign the shaft.

MAINTENANCE

IDLER CONTROL MAINTENANCE

D-2

PURGING AIR FROM FUEL SYSTEM ( GM

3.0L ENGINE)

WARNING

Keep fuel clear of open flames or arcs, allow engine to cool before working on the fuel system. Wipe up any spilled fuel and do not start engine until fumes clear.

------------------------------------------------------------------------

The fuel system operates as follows, The fuel pump will operate for a maximum of 3 seconds when the ignition switch is turned “ON”. The pump will restart once the start button is pushed and continue when the engine starts. To purge the system of air if fuel lines have been removed, the ignition switch can be toggled “ON” and “OFF” (at 3 second intervals) until fuel flows through the fuel return line in the neck of the tank.

The GM 3.0L engine does not require the system to be bled. If the engine runs out of fuel and the tank is refilled, the engine will restart within a few seconds if the engine is properly tuned.

CAUTION

Before doing electrical work, disconnect the battery.

------------------------------------------------------------------------

When installing a new battery or using a jumper battery to start the engine, be sure the battery polarity is connected properly. The correct polarity is negative ground. Damage to the engine alternator and the TBI controller can result from incorrect connection.

• Proper operation of the idle control requires good

grounding of the TBI controller, and battery.

• If desired, the welder can be used without automatic

idling by setting the “Idler” switch to the “High” position.

NAMEPLATES

Whenever routine maintenance is performed on this machine - or at least yearly - inspect all nameplates and labels for legibility. Replace those which are no longer clear. Refer to the parts list for the replacement item number.

ENGINE MAINTENANCE

Refer to the engine operation and maintenance manual for additional information on the engine.

CLASSIC 300G

Page 18

ENGINE SERVICE

(

EVERY DAY OR EVERY 8 HOURS

FIRST SERVICE - (50 HOURS)

EVERY 100 HOURS OR 3 MONTHS

EVERY 200 HOURS OR 6 MONTHS

EVERY 600 HOURS OR 12 MONTHS

ENGINE SERVICE (NOTE 2)

4CC

Coolant level

Conc 50/50 Water/Ethylene Glycolentration of antifreeze Radiator for contamination or blockage

Coolant (NOTE 3) 9.9qrts, 9.4L Engine oil level ( NOTE 1 ) Engine oil ( NOTE 1 & 3 ) Engine oil filte r AC PF25 Drain fuel bowl

Fue l filter canister PSI# 32500292 Tension of Alternator/ Fan belt Alternator/ Fan belt wear

Alternator Belt Good Year 11AV0955

Fan Belt Good Year 11AV1220

Tighten cylinder head

Spark Plugs (Gap = 0.040) 4 - AC R46TS

Electrical systems

All nuts and bolts for tightness Air filter (earlier check may be req’d)

Air filter element Donaldson#P181050 Nelson #70206N Leaks or engine damage Battery BCI GROUP 45

MAINTENANCE

MAINTENANCE ITEM TYPE OR QUANTITY

4.5qts, 4.3L ( i

ncluding filter )

D-3D-3

I = Inspect C = Clean R = Replace

Notes (1) Consult Engine Operators Manual for oil Recommendations.

(2) Consult engine operators manual for additional maintenance schedule information. (3) Fill slowly! Ensure correct quantity is used. (4) Clean the air filter if the engine is operating in very dusty conditions.

Above operations to be carried out by trained personnel with reference to the workshop manual where necessary. These preventative maintenance periods apply to average conditions of operation. If necessary, use shorter periods. S20919-3

2/01

CLASSIC 300G

Page 19

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.

__________________________________________________________________________

E-1

This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).

Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting.

Step 2. POSSIBLE CAUSE.

The second column labeled “POSSIBLE CAUSE” lists the obvious external possibilities that may contribute to the machine symptom.

ELECTRIC SHOCK can kill.

• Do not touch electrically live parts such as output terminals or internal wiring.

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or vent exhaust outside.

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.

If you do not understand or are unable to perform the Recommended Course of Action safely, contact your local Lincoln Authorized Field Service Facility.

• Remove guards only when necessary and replace when work requiring removal is complete.

• Only qualified personnel should install, use or service this equipment.

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.

MOVING PARTS can injure.

• Do not operate with doors open or guards off.

• Stop engine before servicing.

• Keep away from moving parts.

CAUTION

CLASSIC 300G

Page 20

E-2

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-2

PROBLEMS

(SYMPTOMS)

Machine fails to hold the heat constantly.

Welder starts but fails to generate current.

POSSIBLE

CAUSES

PROBLEMS

1. Rough or dirty commutator.

2. Brushes may be worn down to limit.

3. Field circuit may have variable resistance connection or intermittent open circuit due to loose, or broken wire.

4. Electrode lead or work lead connection may be poor.

5. Wrong grade of brushes may have been installed on generator.

6. Field rheostat may be making poor contact and overheating.

1. Generator or exciter brushes may be loose or missing.

2. Exciter may not be operating.

3. Field circuit of generator or exciter may be open.

RECOMMENDED

COURSE OF ACTION

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

4. Exciter may have lost excitation.

5. Series field and armature circuit may be open-circuited.

Welding arc is loud and spatters excessively.

1. Current setting may be too high.

2. Polarity may be wrong.

CAUTION

CLASSIC 300G

Page 21

E-3

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-3

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSES

RECOMMENDED

COURSE OF ACTION

PROBLEMS

Welding current too great or too small compared to indication on the dial.

Arc continuously pops out.

FLASHING THE FIELDS:

1. Stop the engine welder and disconnect the positive battery terminal.

2. Remove the cover from the exciter.

3. Turn the “Fine Current Adjustment” (rheostat) to “100” on the dial.

4. Using a 12 volt automotive battery, connect its negative terminal to the negative brushholder. The negative

brushholder is the one nearest to the rotor lamination. See the wiring diagram. With the engine NOT running, touch the positive battery terminal to the positive brushholder. Remove the battery from the circuit.

1. Exciter output low causing low

output compared to dial indication.

2. Operating speed too low or high.

1. “Current Range Selector” switch

may be set at an intermediate position.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

5. Replace the exciter cover.

6. Reconnect the positive battery cable.

7. Start the welder and the generator voltage should build up.

CAUTION

CLASSIC 300G

Page 22

E-4

TROUBLESHOOTING

ELECTRONIC IDLER CONTROL TROUBLESHOOTING GUIDE

Engine Will Not Return to Low

Idle in Approximately 10 Seconds

After Welding and Auxiliary Loads are Removed

Set Idler Control Switch

to the Auto Position

Check for Continuity through Idler

Control Switch

Open Closed

Remove Molex connector Replace Idler

from current sensing board. Control Switch.

E-4

Operation Same Machine Idlers

Check wiring between TBI controller and current sensing board. 1. Check for current in wires looping through

current sensor.

2. Replace current sensor.

Have TBI controller inspected at authorized service shop. Not O.K.

CAUTION

CLASSIC 300G

Page 23

E-5

TROUBLESHOOTING

ELECTRONIC IDLER CONTROL TROUBLESHOOTING GUIDE

With Idler Control Switch in the AUTO Position,Engine Will Not Pick Up Speed When:

E-5

The Arc is Struck

Check for loose or disconnected wire running between weld selector switch and output stud.

Both

1. Check Idler circuit wiring. Possible problems are wires from Current Sensing Board reversed at idler switch or wires connected incorrectly at Current Sensor Molex plug.

2. Replace current Sensing Board.

Auxiliary Load

1. Load too small. Try load above 150 Watts.

2. Check for loose or disconnected wire running from black lead out of exciter to CB2 circuit breaker.

CAUTION

CLASSIC 300G

Page 24

E-6

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

POSSIBLE AREAS OF

MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

E-6

Engine does not start

Irregular running of the Engine.

1. Faulty Ignition switch

Insufficient charging or complete

2. discharge of the battery

3. Lack of fuel or air mixed in the fuel system.

2. Clogged fuel filter.

4. Irregular and faulty fuel supply (Injector pump trouble)

5. Moisture or carbon on spark plugs.

6. Improper viscosity of the lubricating oil.

7. Clogged air cleaner.

8. No compression.

9. Engine protection light is ON.

1. Air mixed in the fuel system.

2. Uneven fuel injection (Faulty fuel injector pump).

3. Clogged fuel filter.

4. Defective governor.

5. Engine itself defective.

Charge.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

Engine stops running During Operation and the Engine Protection Light Does Turn On. (Solid Light)

1. Lack of fuel in the tank.

2. Clogged fuel filter.

3. Air mixed in the fuel system.

4. Lack of Engine Oil.

5. Fault in oil pressure switch.

6. Oil leakage from the lubricating system.

7. Clogged oil filter.

8. Oil too light.

9. Faulty TBI controller.

10. Faulty function of the engine.

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.

CLASSIC 300G

Page 25

E-7

Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

POSSIBLE AREAS OF

MISADJUSTMENTS(S)

E-7

RECOMMENDED

COURSE OF ACTION

Engine Stops During Operation and the Engine Protection Light Does Turn On. (Flashing)

White or Blue Smoke.

Dark Smoke

Faulty Charging

Starter Motor does not run.

Lack of Coolant.

2. Loose or slipping fan belt.

3. Damaged fan belt.

1. Excess engine oil.

2. Too low viscosity of the engine oil.

1. Excess injection.

2. Clogged air cleaner.

3. Faulty function of the engine.

1. Loose fan belt.

2. Faulty wiring.

3. Faulty battery.

4. Worn out alternator brush.

1. Loose or damaged wiring.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

2. Low Battery voltage.

3. Damaged starter motor.

Engine Knocking.

Lack of Power.

1. Poor grade of Gasoline.

2. Spark advance to far.

1. Carbon deposits causing preignition.

2. Incorrect timing.

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.

CLASSIC 300G

Page 26

E-8

Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

TROUBLESHOOTING

POSSIBLE AREAS OF

MISADJUSTMENTS(S)

E-8

RECOMMENDED

COURSE OF ACTION

Surging

Large Decrease in Speed.

Engine runs Irregularly.

Engine fails to pick up speed when Arc is struck.

1. Dirty Air Filter.

2. Engine running at RPM limiter (2000 RPM).

1. Ice build up on throttle plate.

1. Faulty coolant temperature sender.

1. Faulty idler circuit.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

CLASSIC 300G

Page 27

F-1

-W U

3 456

7 89

10 11

P10

ROTOR

NEUTRAL BONDED TO FRAME

SHOWN AS VIEWED FROM REAR.

CONTROL PANEL COMPONENTS

ELECTRICAL SYMBOLS

PER E1537

10 K

RPM CONTROL

BODY

CONTROLLER

ZENITH THROTTLE

WHITE

4514

CLASSIC 300G WIRING DIAGRAM FOR CODE 10659

INJECTOR

NEUTRE RACCORDE AU BATI

LEAD COLOR CODE

ALTERNATOR

SLIP RINGS

B - BLACK

G - GREEN

N - BROWN

R - RED

U - BLUE

12 119854

BLACK

CONNECTOR

1 1713

97A

97B

FUEL PUMP

602B

602A

600A

610

600B

SLIP RING

NEAREST

TO IRON

W - WHITE

Y - YELLOW

O - ORANGE

87B

99A

ALTERNATOR

COIL

MOTOR

THROTTLE PLATE

15A

230 VOLT

RECEPTACLE

115 VOLT

RECEPTACLE

87A

AIR

99C

ABC

99B

99D

B A

TEMP.

WATER

SENSOR

97C

EXC

DISTRIBUTOR

PARTS SUPPLIED

WITH ENGINE

CONNECTED ON THIS MACHINE. DAMAGE TO T HE REMOTE CONTROL AND/OR MACHINE

F-1

A.02

L11194

WILL RESULT IF THE RED AND BLACK LEADS ARE CONNECTED I N THE CLASSIC 300G.

DIAGRAMS

SWITCH

SELECTOR

RHEOSTAT

FUSE

TEMP.

SENSOR

99E

MAP SENSOR

SENSOR

OIL PRESSURE SWITCH & SENSOR

AMMETER

LAMP

ENGINE

FAILURE

CB5

ENGINE

HOUR METER

GENERATOR

ALTERNATOR

AUXILIARY

POWER

WINDINGS

CB3

CB4

CB1

CB2

SWITCH

WATER TEMP. SENDE R

SWITCH

IGNITION

START

NEAR FUSE)

(GROUND SCREW

IDLER

SWITCH

SENSOR

GAUGE

WATER TEMP.

MOTOR

STARTER

-W

1 2

LEAD BLOCK

WELDER

54 3

CURRENT

SENSOR

GAUGE

OIL PRESS.

CONTROL PANEL

GROUND SCREW

(CC+) & (CV+ WITH W.F. M.)

POSITIVE

MODULE

WIRE FEED

(CC-)

NEGATIVE

#8 LEAD

PLUG

(P5)

POS.

CONNECT PLUG "P5" ON W.F.M. TO CONNECTOR "J5" ON MACHINE.

ON MACHINE, REMOVE PLUG "P10" FROM C ONNECTOR "J5".

609

#2 HEAVY LEAD

NEG.

608

{

WIRE FEED MODULE (OPTIONAL)

INLINE

CONNECTORS

OUTPUT TERMINALS

CONNECT TO POS. & NEG.

W.F.M.

PANEL

CONTROL

PLUG FOR

REMOTE CONTROL

POTENTIOMETER

CONNECT

TO CASE

123456789101112

SEE BELOW

* *

P11

CAUTION: DAMAGE CAN OCCUR

TO THE REMOTE CONTROL

SWITCH IF IT IS USED WITHOUT

THE "P11" PLUG INST ALLED OR A

WIRE FEED MODULE INSTALLED.

K924-4 REMOTE CONTROL (OPTIONAL)

TO BASE

GROUND

REMOTE CONTROL RECEPTACLE & SWITCH

TO ENGINE

GROUND

RBELOW

SEE

602

600

SEE

BELOW

NEGATIVE CV

OUTPUT TERMINAL

PANEL

RESISTORS

SWITCH FOR LOCAL OR REMOTE CONTROL

CONNECT TO NEG.

SHOWN IN LOCAL POSITION.

WITH MACHINE NOT RUNNING, REMOVE PLUG " P9" ON MACHINE FROM CONNECTOR "J8".

MACHINE MUST NOT BE RUNNING

WHEN MAKING THESE CONNECTIONS.

#2 HEAVY LEAD

250 AMP

THERMOSTAT

ASSEMBLY

BRUSH HOLDER

REMOTE CONTROL

POTENTIOMETER BOX

THEN CONNECT PLUG "P8" ON REMOTE CONTRO L TO CONNECTOR "J8" ON MACHINE.

UNCONNECTED PLUG "P10" (IF ONE IS ON THE MACHINE) FASTEN THE NEW PLUG "P11"

IF A WIRE FEED MODULE IS INSTALLED, WITH THE MACHINE OFF, DISPOSE OF THE

THE RED AND BLACK LEADS ARE USED ON CLASSIC I MACHINES ONLY AND ARE NOT

IF NO WIRE FEED MODULE IS INSTALL ED, WITH THE MACHINE OFF, DISCONNECT PLUG "P10"

ON THE MACHINE FROM CONNECTOR "J5" . CONNECT PLUG "P11" FROM THE REMOTE CONTROL

KIT TO CONNECTOR "J5" ON THE MACHINE.

NEARBY, LEAVING IT UNCONNECTED.

CLASSIC 300G

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside

the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..

Page 28

F-2

DIAGRAMS

1 2

-W U

3 456

7 89

10 11

P10

NEUTRAL BONDED TO FRAME

NEUTRE RACCORDE AU BATI

SHOWN AS VIEWED FROM REAR.

CONTROL PANEL COMPONENTS

B - BLACK OR GRAY

G - GREEN

LEAD COLOR CODE

PER E1537

10 K

RPM CONTROL

BODY

CONTROLLER

ZENITH THROTTLE

BLACK

WHITE

CONNECTOR

4514

CLASSIC 300G WIRING DIAGRAM FOR CODES 10912 AND 11135

INJECTOR

602B

610

600B

ROTOR

610A

ALTERNATOR

600C

SLIP RING

NEAREST

TO IRON

SLIP RINGS

R - RED OR PINK

U - BLUE

W - WHITE

Y - YELLOW

87B

12 119854

99A

CONNECTOR

3 2

97B

99D

1 1713

B A

ALTERNATOR

97A

COIL

C.0

MOTOR

THROTTLE PLATE

FUEL PUMP

602

600

602A

600A

21A

15A

FUSE

230 VOLT

RECEPTACLE

400F

115 VOLT

RECEPTACLE

87A

AIR

TEMP.

99C

ABC

99B

TEMP.

WATER

SENSOR

97C

EXC

DISTRIBUTOR

ENGINE

PARTS SUPPLIED

WITH ENGINE

IN LOCAL POSITION.

REMOTE CONTROL SHOWN

SWITCH FOR LOCAL OR

SELECTOR

RHEOSTAT

21A

SENSOR

99E

MAP SENSOR

OIL PRESSURE SWITCH & SENSOR

LAMP

ENGINE

FAILURE

CB5

HOUR METER

GENERATOR

SWITCH

ALTERNATOR

AUXILIARY

POWER

WINDINGS

820

810

CB3

15A

CB4

11A

GND-E

20A

CB1

20A

CB2

IDLER

SWITCH

SENSOR

WATER TEMP. SENDER

AMMETER

START

GAUGE

WATER TEMP.

SWITCH

IGNITION

MOTOR

STARTER

F-2

L11866

-W

1 2

LEAD BLOCK

WELDER

54 3

67B

11B

NEAR FUSE)

(GROUND SCREW

(CC+) & (CV+ WITH W.F.M.)

POSITIVE

MODULE

WIRE FEED

(CC-)

NEGATIVE

#8 LEAD

PLUG

(P5)

CONNECT PLUG "P5" ON W.F.M. TO CONNECTOR "J5" ON MACHINE.

ON MACHINE, REMOVE PLUG "P10" FROM CONNECTOR "J5".

{

609

#2 HEAV Y LEAD

NEG.

POS.

608

{

WIRE FEED MODULE (OPTIONAL)

INLINE

CONNECTORS

OUTPUT TERMINALS

CONNECT TO POS. & NEG.

W.F.M.

PANEL

SENSOR

CURRENT

GAUGE

OIL PRESS.

CONTROL PANEL

GROUND SCREW

GROUND

K924-5 REMOTE CONTROL (OPTIONAL)

TO BASE

TO ENGINE

CONTROL

PLUG FOR

REMOTE CONTROL

POTENTIOMETER

NEGATIVE CV

OUTPUT TERMINAL

PANEL

CONNECT

TO CASE

RESISTORS

MACHINE MUST NOT BE RUNNING

WHEN MAKING THESE CONNECTIONS.

#2 HEA VY LEAD

250 AMP

THERMOSTAT

ASSEMBLY

BRUSH HOLDER

CONNECT TO NEG.

REMOTE CONTROL

POTENTIOMETER BOX

CLASSIC 300G

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside

the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..

Page 29

F-3

DIAGRAMS

K2464-1 REMOTE CONTROL WIRING / CONNECTION DIAGRAM

F-3

RESISTORS

REMOTE CONTROL BOX

CC "STICK CONTROL

CONNECT TO CASE

CLASSIC 300G

CV "WIRE" CONTROL POT CCW

ORANGE

RED

BLUE

CABLE CONNECTION TABLE

F G

C D

LEAD COLOR RED

ORANGE

BLUE

WHITE JUMPER WHITE JUMPER

S26097

Page 30

F-4

61.0 (24.00)

DIAGRAMS

104.0 (40.94)

47.0 (18.50)

52.4 (20.62)

115.6

(45.5)

F-4

S10766

1/03

N.A.

DIMENSION PRINT

CONTROL PANEL

94.3 (37.12)

HOLE

1.54 (.56) SKID O

MOUNTING

10.2 (4.00)

8.26

(3.25)

105.8

(41.66)

34.3

(13.50)

N.B.

E C

10.2 (4.00)

67.0

(26.38)

58.4

(23.00)

22.1

(8.70)

OIL AND WATER IN ENGINE,

NOTES:

N.A. CENTER OF GRAVITY WITH

1.54 (.56) O

MOUNTING HOLES.

BUT NO FUEL.

N.B. 1.54 (.56) TRAILER

CLASSIC 300G

SKID MOUNTING

HOLE

146.6

(57.70)

METRIC cm (ENGLISH in.)

170.0

(66.91)

WELDER A B

CLASSIC 300G

PART NO.

S10766-9

Page 31

WARNING

Spanish

AVISO DE

PRECAUCION

● Do not touch electrically live parts or

electrode with skin or wet clothing.

● Insulate yourself from work and

ground.

● No toque las partes o los electrodos

bajo carga con la piel o ropa mojada.

● Aislese del trabajo y de la tierra.

● Keep flammable materials away.

● Mantenga el material combustible

fuera del área de trabajo.

● Wear eye, ear and body protection.

● Protéjase los ojos, los oídos y el

cuerpo.

French

ATTENTION

German

WARNUNG

Portuguese

ATENÇÃO

Japanese

Chinese

Korean

Arabic

● 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.

● Berühren Sie keine stromführenden

Teile oder Elektroden mit Ihrem Körper oder feuchter Kleidung!

● Isolieren Sie sich von den

Elektroden und dem Erdboden!

● Não toque partes elétricas e elec-

trodos com a pele ou roupa molhada.

● Isole-se da peça e terra.

● Gardez à l’écart de tout matériel

inflammable.

● Entfernen Sie brennbarres Material!

● Mantenha inflamáveis bem guarda-

dos.

● Protégez vos yeux, vos oreilles et

votre corps.

● Tragen Sie Augen-, Ohren- und Kör-

perschutz!

● Use proteção para a vista, ouvido e

corpo.

READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.

Page 32

● 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

● Los humos fuera de la zona de res-

piración.

● Mantenga la cabeza fuera de los

humos. Utilice ventilación o aspiración para gases.

● Gardez la tête à l’écart des fumées.

● Utilisez un ventilateur ou un aspira-

teur pour ôter les fumées des zones de travail.

● Vermeiden Sie das Einatmen von

Schweibrauch!

● Sorgen Sie für gute Be- und

Entlüftung des Arbeitsplatzes!

● Mantenha seu rosto da fumaça.

● Use ventilação e exhaustão para

remover fumo da zona respiratória.

● Desconectar el cable de ali-

mentación de poder de la máquina antes de iniciar cualquier servicio.

● Débranchez le courant avant l’entre-

tien.

● Strom vor Wartungsarbeiten

abschalten! (Netzstrom völlig öffnen; Maschine anhalten!)

● Não opere com as tampas removidas.

● Desligue a corrente antes de fazer

serviço.

● Não toque as partes elétricas nuas.

● No operar con panel abierto o

guardas quitadas.

● N’opérez pas avec les panneaux

ouverts ou avec les dispositifs de protection enlevés.

● Anlage nie ohne Schutzgehäuse

oder Innenschutzverkleidung in Betrieb setzen!

● Mantenha-se afastado das partes

moventes.

● Não opere com os paineis abertos

ou guardas removidas.

Spanish

AVISO DE

PRECAUCION

French

ATTENTION

German

WARNUNG

Portuguese

ATENÇÃO

Japanese

Chinese

Korean

Arabic

LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.

Page 33

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

Lincoln Electric CLASSIC 300G 10912, CLASSIC 300G 11135, CLASSIC 300G IM659-B, CLASSIC 300G Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual