Lincoln Electric IM765 User Manual

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IM765

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Commander 500 Cummins

For use with machines having Code Numbers:

Safety Depends on You

Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly, think before you act and be careful.

™

10903 (Standard), 10904 (Deluxe)

March, 2002

Date of Purchase: Serial Number: Code Number: Model: Where Purchased:

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

OPERATOR’S MANUAL

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

Page 2

SAFETY

WARNING

CALIFORNIA PROPOSITION 65 WARNINGS

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

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.

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

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.

____________________________________________________

1.c. Do not add the fuel near an open flame weld-

ing 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.

____________________________________________________

1.d. Keep all equipment safety guards, coversand 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.

____________________________________________________

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.

___________________________________________________

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

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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.

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.

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.

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.

vapors

5.e. Also see item 1.b.

Mar ‘95

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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

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SAFETY

PRÉCAUTIONS DE SÛRETÉ

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

Model Name & Number _____________________________________

Code & Serial Number _____________________________________

Date of Purchase _____________________________________

Whenever you request replacement parts for or information on this equipment always supply the information you have recorded above.

Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it

handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection. The level of seriousness to be applied to each is explained below:

WARNING

This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.

CAUTION

This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.

Page 7

TABLE OF CONTENTS

Page

Safety .........................................................................................................................i-iv

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

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

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

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

Storing.............................................................................................................A-2

Stacking ..........................................................................................................A-2

Angle of Operation ..........................................................................................A-2

Lifting...............................................................................................................A-3

High Altitude Operation ...................................................................................A-3

High Temperature Operation...........................................................................A-3

Towing .............................................................................................................A-3

Pre-Operation Engine Service...............................................................................A-4

Oil....................................................................................................................A-4

Fuel .................................................................................................................A-4

Fuel Cap..........................................................................................................A-4

Engine Coolant................................................................................................A-4

Battery Connection ..................................................................................A-4, A-5

Muffler Outlet Pipe ..........................................................................................A-5

Spark Arrestor .................................................................................................A-5

Radiator Cap Cover ........................................................................................A-5

Air Cleaner Inlet Hood.....................................................................................A-5

High Frequency Generators for TIG Applications .................................................A-5

Remote Control .....................................................................................................A-5

Welding Terminals .................................................................................................A-5

Welding Output Cables ...................................................................................A-6

Machine Grounding ...............................................................................................A-6

Auxiliary Power Receptacles.................................................................................A-6

Standby Power Connections...........................................................................A-6,A-7

Connection of Lincoln Electric Wire Feeders..................................................A-8,A-9

vivi

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

Safety Instructions .................................................................................................B-1

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

Recommended Applications............................................................................B-1

Design Features and Advantages...................................................................B-1

Welding Capability ..........................................................................................B-2

Controls and Settings ............................................................................................B-3

Engine Controls ........................................................................................B-3,A-4

Welder Controls ..............................................................................................B-5

Auxiliary Power Controls.................................................................................B-5

Engine Operation...................................................................................................B-6

Starting the Engine .........................................................................................B-6

Stopping the Engine........................................................................................B-6

Break-In Period ...............................................................................................B-7

Typical Fuel Consumption...............................................................................B-7

Welder Operation ..................................................................................................B-7

Stick Welding ..................................................................................................B-7

TIG Welding..............................................................................................B-7,B-8

Wire Feed (Constant Voltage) Welding...........................................................B-9

Auxiliary Power Operation.....................................................................................B-9

Simultaneous Welding and Auxiliary Power Loads.........................................B-9

Arc Gouging ....................................................................................................B-9

Paralleling .......................................................................................................B-9

Extension Cord Length Recommendations.........................................................B-10

COMMANDER 500 CUMMINS

Page 8

TABLE OF CONTENTS

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

Optional Field Installed Accessories .....................................................................C-1

Recommended Optional Equipment .....................................................................C-2

High Frequency Generators For TIG Applications ................................................C-2

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

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

Routine and Periodic Maintenance .......................................................................D-1

Engine Maintenance..............................................................................................D-1

Air Filter...........................................................................................................D-1

Fuel Filters ......................................................................................................D-2

Cooling System...............................................................................................D-2

Battery Handling .....................................................................................D-2, D-3

Nameplate / Warning Decal Maintenance.............................................................D-3

Welder / Generator Maintenance ..........................................................................D-3

Engine Maintenance Components ........................................................................D-3

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

viivii

Wiring,Connection Diagrams and Dimension Print.....................................Section F

Parts Lists ........................................................................................................P391Series

COMMANDER 500 CUMMINS

Page 9

A-1

INSTALLATION

A-1

TECHNICAL SPECIFICATIONS -

COMMANDER 500 CUMMINS (K1846-1 & -2)

INPUT - DIESEL ENGINE

Make/Model Description Speed (RPM) Displacement Starting Capacities

System

Cummins 4 cylinder High Idle 1900 199 cu. in 12VDC battery Fuel: 25 gal. B3.3 56 HP(42kw) Low Idle 1475 (3.3 L) & Starter 94.6 L Diesel Engine @ 1800 RPM Full Load 1800

Bore x Stroke Oil: 8.0 Qts.

7.5L

3.74” x 4.53”

(95mm x 115mm) Coolant: 2.6 Gal.

11.8 L

RATED OUTPUT - WELDER

Duty Cycle Welding Output Volts at Rated Amps

100%

60%

50%

500 Amps (DC multi-purpose) 40 Volts

550 Amps (DC multi-purpose) 36 Volts

575 Amps (DC multi-purpose) 35 Volts

OUTPUT - WELDER AND GENERATOR

Welding Range Open Circuit Voltage Auxiliary Power

30 - 575 Amps CC/CV 80 Max OCV @1900 RPM 120/240 VAC

12,000 Watts, 60 Hz.

20 - 250 Amps TIG 100% Duty Cycle

PHYSICAL DIMENSIONS

HEIGHT

42.0 in. 31.5 in. 63.1 in. 1625 lbs.(737 kg)

1066.8 mm 800.1 mm 1602.7 mm

WIDTH DEPTH WEIGHT

( Approx.)

1. Output rating in watts is equivalent to volt-amperes at unity power factor. Output voltage is within +/- 10% at all loads up to rated capacity. When welding, available auxiliary power will be reduced.

2. Top of Enclosure. Add 8.8” (223.5mm) for exhaust.

COMMANDER 500 CUMMINS

Page 10

A-2

INSTALLATION

A-2

Read this entire installation section before you start installation.

SAFETY PRECAUTIONS

WARNING

Do not attempt to use this equipment until you have thoroughly read all operating and maintenance manuals supplied with your machine. They include important safety precautions, detailed engine starting, operating and maintenance instructions and parts lists.

ELECTRIC SHOCK can kill.

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

•Insulate yourself from the work and ground.

•Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

•Do not stack anything near the engine.

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

LOCATION / VENTILATION

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

CAUTION

DO NOT MOUNT OVER COMBUSTIBLE SURFACES

Where there is a combustible surface directly under stationary or fixed electrical equipment, that surface should be covered with a steel plate at least .06”(1.6mm) thick, which should extend not less than 5.90(150mm) beyond the equipment on all sides.

STORING

1. Store the machine in a cool, dry place when it is not in use. Protect it from dust and dirt. Keep it where it can’t be accidentally damaged from construction activities, moving vehicles, and other hazards.

2. Drain the engine oil and refill with fresh 10W30 oil. Run the engine for about five minutes to circulate oil to all the parts. See the MAINTENANCE section of this manual for details on changing oil.

3. Remove the battery, recharge it, and adjust the electrolyte level. Store the battery in a dry, dark place.

STACKING

MOVING PARTS can injure.

•Do not operate with doors open or guards off.

•Stop engine before servicing.

•Keep away from moving parts

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

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

COMMANDER 500 CUMMINS

COMMANDER 500 CUMMINS machines cannot be stacked.

ANGLE OF OPERATION

To achieve optimum engine performance the COMMANDER 500 CUMMINS should be run in a level position. The maximum angle of operation for the Cummins engine is 35 degrees in all directions. If the engine is to be operated at an angle, provisions must be made for checking and maintaining the oil level at the normal (FULL) oil capacity in the crankcase. When operating the welder at an angle, the effective fuel capacity will be slightly less than the specified 25 gallons.

Page 11

A-3

INSTALLATION

A-3

LIFTING

The Commander lift bale should be used to lift the machine. The Commander is shipped with the lift bale retracted. Before attempting to lift the Commander the lift bale must be secured in a raised position. Secure the lift bale as follows:

a. Open the engine compartment door.

b. Locate the 2 access holes on the upper middle

region of compartment wall just below the lift bale.

c. Use the lifting strap to raise the lift bale to the full

upright position. This will align the mounting holes on the lift bale with the access holes.

d. Secure the lift bale with 2 thread forming screws.

The screws are provided in the shipped loose parts bag.

HIGH TEMPERATURE OPERATION

At temperatures above 40°C (104°F), output voltage derating may be necessary. For maximum output current ratings, derate welder voltage rating 2 volts for every 10°C (21°F) above 40°C (104°F).

TOWING

The recommended trailer for use with this equipment for road, in-plant and yard towing by a vehicle Lincoln’s K953-1. If the user adapts a non-Lincoln trailer, he must assume responsibility that the method of attachment and usage does not result in a safety hazard nor damage the welding equipment. Some of the factors to be considered are as follows:

1. 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 that there will be no undue stress to the trailer’s framework.

(1)

WARNING

FALLING EQUIPMENT can cause injury.

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

• Lift only with equipment of adequate lifting capacity.

• Be sure machine is stable when lifting.

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

HIGH ALTITUDE OPERATION

At higher altitudes, output derating may be necessary. For maximum rating, derate the welder output 4% for every 300 meters (984 ft.) above 1500 meters (4920 ft.). For output of 500A and below, derate the welder output 4% for every 300 meters (984 ft.) above 2100 meters (6888 ft.).

3. Proper placement of the equipment on the trailer to insure stability side to side and front to back when being moved and when standing by itself.

4. Typical conditions of use, such as travel speed, roughness of surface on which the trailer will be operated, and environmental conditions.

5. Proper preventative maintenance of trailer.

6. Conformance with federal, state and local laws

(1)

Consult applicable federal, state and local laws regarding specific requirements for use on public highways.

(1)

Contact a Cummins Service Representative for any engine adjustments that may be required.

COMMANDER 500 CUMMINS

Page 12

A-4

INSTALLATION

A-4

PRE-OPERATION ENGINE SERVICE

READ the engine operating and maintenance instructions supplied with this machine.

WARNING

•Keep hands away from the engine muffler or HOT engine parts.

•Stop engine and allow to cool before fueling.

• Do not smoke when fueling.

• Fill fuel tank at a moderate rate and do not overfill.

• Wipe up spilled fuel and allow fumes to clear before starting engine.

• Keep sparks and flame away from tank.

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

OIL

The Commander is shipped with the engine crankcase filled with high quality SAE 10W-30 oil (API class CD or better). Check the oil level before starting the engine. If it is not up to the full mark on the dip stick, add oil as required. Check the oil level every four hours of running time during the first 35 running hours. Refer to the engine Operator’s Manual for specific oil recommendations and break-in information. The oil change interval is dependent on the quality of the oil and the operating environment. Refer to the engine Operator’s Manual for the proper service and maintenance intervals.

FUEL USE DIESEL FUEL ONLY

Fill the fuel tank with clean, fresh diesel fuel. The capacity of the fuel tank is 25 gallons (94.6 liters). See engine Operator’s Manual for specific fuel recommendations.

Running out of fuel may require bleeding the fuel injection pump.

NOTE:

valve (pointer to be in line with hose).

FUEL CAP

Remove the plastic cap covering from the Fuel Tank Filler neck and install the Fuel Cap.

Before starting the engine, open the fuel shutoff

ENGINE COOLANT

WARNING

HOT COOLANT can burn skin.

• Do not remove cap if radiator is hot.

The welder is shipped with the engine and radiator filled with a 50% mixture of ethylene glycol and water. See the MAINTENANCE section and the engine Operator’s Manual for more information on coolant.

BATTERY CONNECTION

WARNING

GASES FROM BATTERY can explode.

• Keep sparks, flame and cigarettes away from battery.

To prevent EXPLOSION when:

• INSTALLING A NEW BATTERY — disconnect negative cable from old battery first and connect to new battery last.

• 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 negative battery lead at engine foot.

BATTERY ACID can burn eyes and skin.

• Wear gloves and eye protection and be careful when working near battery.

• Follow instructions printed on battery.

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

IMPORTANT: To prevent ELECTRICAL DAMAGE WHEN:

a) Installing new batteries.

b) Using a booster.

Use correct polarity — Negative Ground.

COMMANDER 500 CUMMINS

Page 13

A-5

INSTALLATION

A-5

The Commander is shipped with the negative battery cable disconnected. Before you operate the machine, make sure the Engine Switch is in the OFF position and attach the disconnected cable securely to the negative (-) battery terminal.

Remove the insulating cap from the negative battery terminal. Replace and tighten negative battery cable terminal. NOTE: This machine is furnished with a wet charged battery; if unused for several months, the battery may require a booster charge. Be sure to use the correct polarity when charging the battery.

MUFFLER OUTLET PIPE

Remove the plastic plug covering the muffler outlet tube. Using the clamp provided secure the outlet pipe extension to the outlet tube. Install the rain cap on the end of the outlet pipe extension.

SPARK ARRESTOR

Some federal, state or local laws may require that gasoline or diesel engines be equipped with exhaust spark arrestors 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 arrestor. When required by local regulations, a suitable spark arrestor, must be installed and properly maintained.

HIGH FREQUENCY GENERATORS FOR TIG APPLICATIONS

The K799 Hi-Freq Unit and the K930-1 or -2 TIG Module are suitable for use with the COMMANDER 500 CUMMINS. The COMMANDER 500 CUMMINS is equipped with the required R.F. bypass circuitry for the connection of high frequency generating equipment. The high frequency bypass network supplied with the K799 Hi-Freq Unit does NOT need to be installed into the COMMANDER 500 CUMMINS.

The COMMANDER 500 CUMMINS and any high frequency generating equipment must be properly grounded. See the K799 Hi-Freq Unit and the K930-1 or-2 TIG Module operating manuals for complete instructions on installation, operation, and mainte-

nance.

REMOTE CONTROL

OUTPUT

The COMMANDER 500 CUMMINS is equipped with a 6-pin & 14-pin connector. The 6-pin connector is for connecting the K857 or K857-1 Remote Control (Optional) or in the case of TIG welding applications, with the foot or hand Amptrol (K870 or K963-1 respectively).

CAUTION

An incorrect arrestor may lead to damage to the engine or adversely affect performance.

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

RADIATOR CAP COVER

Install the radiator cap cover using the two screws which are taped to the radiator cap cover.

AIR CLEANER INLET HOOD

Remove the plastic plug covering the air cleaner inlet. Install the air cleaner inlet hood to the air cleaner.

The 14-pin connector is used to directly connect a wire feeder or TIG Module (K930-1 or -2) control cable.

NOTE: When using the 14-pin connector, if the wire feeder has a built in power source output control, do not connect anything to the 6-pin connector.

WELDING TERMINALS

The Commander is equipped with a toggle switch for selecting "hot" welding terminals when in the "WELD TERMINALS ON" position or "cold" welding terminals when in the "REMOTELY CONTROLLED" position.

COMMANDER 500 CUMMINS

Page 14

A-6

INSTALLATION

A-6

WELDING OUTPUT CABLES

With the engine off, route the electrode and work cables thru the strain relief bracket provided on the front of the base and connect to the terminals provided. These connections should be checked periodically and tightened if necessary.

Listed in Table A.1 are copper cable sizes recommended for the rated current and duty cycle. Lengths stipulated are the distance from the welder to work and back to the welder again. Cable sizes are increased for greater lengths primarily for the purpose of minimizing cable voltage drop.

Table A.1 Combined Length of Electrode and

Work Cables.

TOTAL COMBINED LENGTH OF ELEC-

TRODE AND WORK CABLES

AMPS

@100%

Duty Cycle

500

Up to 150

FT.

3/0 AWG

150-200 FT.

3/0 AWG

200-250 FT.

4/0 AWG

MACHINE GROUNDING

Because this portable engine driven welder creates its own power, it is not necessary to connect its frame to an earth ground, unless the machine is connected to premises wiring (home, shop, etc.).

joints, or to the metal framework of a building which has been effectively grounded. The U.S. National Electrical Code lists a number of alternate means of grounding electrical equipment. A machine grounding stud marked with the symbol is provided on the front of the welder.

AUXILIARY POWER RECEPTACLES

The auxiliary power capacity of the COMMANDER 500 CUMMINS is 12,000 watts of 60 Hz, single phase power. The auxiliary power capacity rating in watts is equivalent to volt-amperes at unity power factor. The maximum permissible current of the 240 VAC output is 50 A. The 240 VAC output can be split to provide two separate 120 VAC outputs with a maximum permissible current of 50 A per output to two separate 120 VAC branch circuits. The output voltage is within ± 10% at all loads up to rated capacity.

NOTE:

of different phases and cannot be paralleled.

The Commander has two 20 Amp-120VAC (5-20R) duplex receptacles and one 50 Amp-120/240 VAC (14-50R) receptacle. The 120/240 VAC receptacle can be split for single phase 120 VAC operation. The auxiliary power receptacles should only be used with three wire grounded type plugs or approved double insulated tools with two wire plugs. The current rating of any plug used with the system must be at least equal to the current capacity of the associated receptacle.

The 120/240V receptacle has two 120V outlets

STANDBY POWER CONNECTIONS

To prevent dangerous electric shock, other equipment powered by this engine driven welder must:

a) be grounded to the frame of the welder using a

grounded type plug,

b) be double insulated.

When this welder is mounted on a truck or trailer, its frame must be securely connected to the metal frame of the vehicle. When this engine driven welder is 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 instructions 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.

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

COMMANDER 500 CUMMINS

The COMMANDER 500 CUMMINS is suitable for temporary, standby or emergency power using the engine manufacturer’s recommended maintenance schedule.

The COMMANDER 500 CUMMINS can be permanently installed as a standby power unit for 240 volt-3 wire, 50 amp service. Connections must be made by a licensed electrician who can determine how the 120/240 VAC power can be adapted to the particular installation and comply with all applicable electrical codes. The following information can be used as a guide by the electrician for most applications. Refer to the connection diagram shown in Figure A.2.

1. 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 customer’s premises disconnect and service over current protection.

Page 15

A-7

240 Volt

60 Hz. 3-Wire

Service

POWER

COMPANY

METER

240 VOLT

120 VOLT

LOAD

NEUTRAL BUS

GROUND

PREMISES

DISCONNECT AND

SERVICE

OVERCURRENT

PROTECTION

GND

NOTE: No. 6 COPPER CONDUCTOR CABLE SEE

NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE

SIZE RECOMMENDATIONS.

240 VOLT

GROUNDED CONDUCTOR

50AMP

240 VOLT

DOUBLE

POLE

CIRCUIT

BREAKER

DOUBLE POLE DOUBLE THROW SWITCH RATING TO BE THE SAME AS OR GREATER THAN PREMISES

SERVICE OVERCURRENT

PROTECTION.

50 AMP, 120/240

VOLT PLUG

NEMA TYPE 14-50

50 AMP, 120/240 VOLT

RECEPTACLE

INSTALLATION

A-7

2. Take necessary steps to assure load is limited to the capacity of the Commander by installing a 50 amp, 240 VAC double pole circuit breaker. Maximum rated load for each leg of the 240 VAC auxiliary is 50 amps. Loading above the rated output will reduce

3. Install a 50 amp 120/240 VAC plug (NEMA Type 14-

50) to the double-pole circuit breaker using No. 6, 4 conductor cable of the desired length. (The 50 amp, 120/240 VAC plug is available in the optional K802R

plug kit.) output voltage below the allowable -10% of rated voltage which may damage appliances or other motor-driven equipment and may result in overheating of the COMMANDER 500 CUMMINS engine.

4. Plug this cable into the 50 Amp 120/240 Volt receptacle on the COMMANDER 500 CUMMINS case front.

Figure A.2 Connection of the COMMANDER 500 CUMMINS to Premises Wiring

COMMANDER 500 CUMMINS

Page 16

A-8

INSTALLATION

A-8

CONNECTION OF LINCOLN ELECTRIC WIRE FEEDERS

WARNING

Shut off welder before making any electrical connections.

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

CONNECTION OF THE LN-25 TO THE COMMANDER 500 CUMMINS

The LN-25 with or without an external contactor may be used with the COMMANDER 500 CUMMINS. See the appropriate connection diagram in the DIAGRAMS section.

NOTE: The LN-25 (K431) Remote Control Module and (K432) Remote Cable are not recommended for use with the COMMANDER 500 CUMMINS.

• Shut the welder off.

• 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 electrode cable from the LN-25 to the “-” terminal of the welder and work cable to the “+” terminal of the welder.

• 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 sense lead to supply current to the wire feeder motor; it does not carry welding current.

CAUTION

If you are using an LN-25 without an internal contactor, the electrode will be energized when the COMMANDER 500 CUMMINS is started.

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

h. When the gun trigger is closed, the current sensing

circuit will cause the COMMANDER 500 CUMMINS 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.

CONNECTION OF LN-7 OR LN-8 TO THE COMMANDER 500 CUMMINS

• Shut the welder off.

• Connect the LN-7 or LN-8 per instructions on the

appropriate connection diagram in the DIAGRAMS section.

• Set the “WIRE FEEDER VOLTMETER” switch to either “+” or “-” as required by the electrode being used.

• Set the “SELECTOR” switch to the “CV-WIRE” posi- tion.

• Adjust the “ARC CONTROL” knob to desired Crispness. SOFT for MIG and CRISP for INNERSHIELD.

• Set the SELECTOR switch to the “CV-WIRE” posi- tion.

• Set the “WELDING TERMINALS” switch to “WELD TERMINALS ON”

• Adjust the “ARC CONTROL” knob to desired crispness. Generally, welding is best if the “ARC CONTROL” is set to SOFT for MIG and CRISP for INNERSHIELD. You may however, want to start in the middle and adjust (as needed) from there.

• Set the “IDLE” switch to the “AUTO” position. When not welding, the COMMANDER 500 CUMMINS 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.

COMMANDER 500 CUMMINS

• Set the “WELDING TERMINALS” switch to the “REMOTELY CONTROLLED” position.

• Set the “IDLE” switch to the “HIGH” position. When

not welding, the COMMANDER 500 CUMMINS engine will be at the low idle speed.

Page 17

A-9

INSTALLATION

A-9

CONNECTION OF AN LN-23P WIRE FEEDER TO THE COMMANDER 500 CUMMINS

• Shut the welder off.

• Connect the LN-23P per instructions on the appro-

priate connection diagram in the DIAGRAMS section. (NOTE): When connecting an LN-23P to the COMMANDER 500 CUMMINS, a K350-1 adapter kit must be used.

• Set the “WIRE FEEDER VOLTMETER” switch to “-”.

• Set the “SELECTOR” switch to “CV-WIRE” position.

• Set the “WELDING TERMINALS” switch to “REMOTELY CONTROLLED”.

• Set the ARC CONTROL to desired crispness. SOFT

for MIG - CRISP for INNERSHIELD.

• Set the “IDLE” switch to the “HIGH” position. If you are using an LN-23P with the K350-1 adapter kit, the electrode is not energized until the gun trigger is

closed.

CONNECTION OF AN NA-3 AUTOMATIC WELDING SYSTEM TO THE COMMANDER 500 CUMMINS

For connection diagrams and instructions for connecting an NA-3 Welding System to the COMMANDER 500 CUMMINS, refer to the NA-3 Welding System instruction manual. The connection diagram for the LN-8 can be used for connecting the NA-3.

CONNECTION OF AN LN-742 TO THE COMMANDER 500 CUMMINS

• Shut the welder off.

• Connect the LN-742 per instructions on the appro-

priate connection diagram in the DIAGRAMS section.

• Set the “WIRE FEEDER VOLTMETER” switch to either “+” or “-” as required by the electrode being used.

• Set the “SELECTOR” switch to the “CV-WIRE” posi- tion.

• Adjust the “ARC CONTROL” knob to desired Crispness. SOFT for MIG and CRISP for INNERSHIELD.

• Set the “WELDING TERMINALS” switch to the “REMOTELY CONTROLLED” position.

• Set the “IDLE” switch to the “AUTO” position. When

not welding, the COMMANDER 500 CUMMINS engine will be at the low idle speed.

COMMANDER 500 CUMMINS

Page 18

B-1

OPERATION

B-1

SAFETY INSTRUCTIONS

Read and understand this entire section before operating your COMMANDER 500 CUMMINS.

WARNING

ELECTRIC SHOCK can kill.

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

•Insulate yourself from the work and ground.

•Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

•Do not stack anything near the engine.

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

MOVING PARTS can injure.

•Do not operate with doors open or guards off.

•Stop engine before servicing.

GENERAL DESCRIPTION

The COMMANDER 500 CUMMINS is a diesel enginedriven welding power source. The machine uses a brush type alternating current generator for DC multipurpose welding and for 120/240 VAC auxiliary standby power. The welding control system uses state of the art Chopper T CUMMINS is not recommended for pipe thawing.

The generator has a single sealed bearing for maintenance free service. The rotor is a copper wound design with two slip rings and brushes. The stator is wound entirely with heavy gauge copper wire and insulated with NEMA class F insulation material. The stator is then impregnated with three layers of high quality varnish. After the stator is assembled using tie bars, the entire assembly covered with an environmentally protective coating. These measures insure trouble-free operation in the harshest environments.

The fuel tank is made from high density polyethylene and holds 25 gallons of diesel fuel. This will provide enough fuel to run for more than 12 hours at full load.

The Cummins B3.3 engine is equipped with a standard, heavy duty, combination fuel filter/water separator element.

RECOMMENDED APPLICATIONS

WELDER

The COMMANDER 500 CUMMINS provides excellent constant current DC welding output for stick (SMAW) and TIG welding. The COMMANDER 500 CUMMINS also provides excellent constant voltage DC welding output for MIG (GMAW) and Innershield (FCAW) welding.

GENERATOR

The COMMANDER 500 CUMMINS provides smooth 120/240 VAC output for auxiliary power and emergency standby power.

echnology. The COMMANDER 500

•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 provide maximum protection from moving parts and insure proper cooling air flow.

COMMANDER 500 CUMMINS

DESIGN FEATURES AND ADVANTAGES

K1846-2 COMMANDER 500 CUMMINS Deluxe Model Features For Welding:

• Excellent DC multi-purpose welding for stick, MIG, TIG, cored wire and arc gouging applications.

• 30 to 500 amps output in five slope controlled ranges for outof position and pipe electrodes, one constant current output range for general purpose welding, one constant voltage range for MIG wire and cored wire welding and one 20-250 amp range for “Touch Start” TIG welding.

• 100% duty cycle at 500 amps output and 50% duty cycle at 575 amps output.

Page 19

B-2

OPERATION

B-2

• Dual 3-digit output meters are provided (optional on K1846-1) for presetting the weld amperage or voltage and displaying the actual amperage and voltage during welding. The meters use superbrite L.E.D.'s for improved readability in full sunlight.

LOOK-BACK FEATURE: After welding has stopped, both displays will remain on for 7 seconds with the last current and voltage value displayed. During this time, the left-most decimal point in each display will be FLASHING.

• Standard remote control capability with 14 pin and 6 pin connectors for easy connection of Lincoln remote control accessories.

• An internal "Solid State" contactor allows for the selection of "hot" or "cold" output terminals with a toggle switch on the control panel.

•“Arc Control”potentiometer in Wire and Stick modes for precise adjustment of arc characteristics.

• Advanced circuitry to prevent pop-outs in the five slope modes.

FOR AUXILIARY POWER

• Gauges for oil pressure, oil temperature, engine alternator output and fuel level (on K1846-2 only codes above 10840 have a fuel level gauge on both K18461 and K1846-2).

• Indicator lights for low oil pressure, high oil temperature and engine alternator low output/broken belt.

• Engine hour meter standard on all models.

• Extended range 25 gallon (94.6 l) fuel tank.

• Automatic idler reduces engine speed when not weld-

ing or drawing auxiliary power. This feature reduces fuel consumption and extends engine life.

• Compact size fits crosswise in full size pick-up truck.

• Single side engine service.

• Copper alternator windings and high temperature

insulation for dependability and long life.

• New paint system on case and base for outstanding corrosion protection.

• 12,000 watts of 120/240 VAC, 60Hz auxiliary power.

• Power for tools, 120/240 VAC lights, electric pumps

and for standby emergency power.

• Drive a 5 HP motor (provided it is started under no load).

• Two 20 amp 120 VAC duplex receptacles for up to 40 amps of 120 VAC power.

• One 50 amp, 120/240 VAC dual voltage receptacle for up to 50 amps of 240 V AC, and up to 50 amps per side to separate branch circuits (not in parallel) of 120 VAC single phase auxiliary power. Allows easy connection to premises wiring.

• Weld and AC auxiliary power at the same time (within machine total capacity).

OTHER FEATURES

• Cummins 4-cylinder water cooled diesel engine. Designed for long life, easy maintenance and excellent fuel economy.

K1846-1 COMMANDER 500 CUMMINS Standard Model

The K1846-1 is the standard version of the Commander 500, and has all the features of the K1846-2 Deluxe version except there is no oil pressure gauge, oil temperature gauge, engine alternator gauge, nor dual output meters. This version does have fully functional engine protection for low oil pressure, high oil temperature, and alternator output with associated lights.

• Afield installed Dual Output Meter and Gauge Kit (K1768-2) is available for the K1846-1 Commander

500. The kit includes dual output meters, oil pressure gauge, water temperature gage, and alternator ammeter.

WELDING CAPABILITY

The COMMANDER 500 CUMMINS is rated at 500 amps, 40 VDC at 100% duty cycle and 575 amps, 36 VDC at 50% duty cycle. The maximum open circuit voltage at 1900 RPM is 80 volts. The weld current is variable from 30 to 575 amps.

• Engine protection system shuts the engine down for low oil pressure, high water temperature or a broken fan/engine alternator belt.

COMMANDER 500 CUMMINS

Page 20

B-3

OPERATION

B-3

CONTROLS AND SETTINGS

All welder and engine controls are located on the case front panel. Refer to Figure B.1 and the explanations that follow.

Figure B.1 Case Front Panel Controls

7 8

WATER

FUEL

TEMP

OIL

PRESS

AMPS

ENGINE CONTROLS (Items 1 through 8)

1. RUN STOP SWITCH

When placed in the “RUN” position, this switch energizes the fuel solenoid and other electric accessories. When placed in the “STOP” position, the flow of fuel to the injection pump is stopped to shut down the engine. (Note: If the switch is left in the "RUN" position and the engine is not running, the fuel solenoid will be engaged for 15 seconds and then shut down. This is to protect the battery from discharge. After 15 seconds, the Run / Stop switch must be toggled off then on before starting.)

2. START PUSHBUTTON

Energizes the starter motor to crank the engine. With the engine "Run / Stop" switch in the "Run" position, push and hold the Start button to crank the engine; release as the engine starts. Start button must be depressed for a minimum of two seconds. Do not press while engine is running since this can cause damage to the ring gear and/or starter motor.

3. FUEL LEVEL GAUGE

Displays the level of diesel fuel in the 25gallon fuel tank. The operator must

watch the fuel level closely to prevent running out of fuel and having to bleed the system.

COMMANDER 500 CUMMINS

Page 21

B-4

OPERATION

B-4

4. ENGINE TEMPERATURE GAUGE (K1846-2

Std., K1846-1 Opt.) AND LIGHT

The gauge displays the engine water temperature. The yellow temperature light remains off under normal operating temperatures. If the light turns on, the engine protection system will shut down the engine. Check for restrictions at the air inlets and outlets. Check for loose or disconnected leads at the temperature sender located on the engine. Check the water pump belt. Also, check to be sure that the welder loads are within the rating of the welder. The light will remain on when the engine has been shut down due to an over- temperature condition.

5. OIL PRESSURE GAUGE (K1846-2 Std.,

K1846-1 Opt.) AND LIGHT

The gauge displays the engine oil pressure when the engine is running. The yellow oil pressure light remains off with proper oil pressure. If the light turns on, the engine protection system will stop the engine. Check for proper oil level and add oil if necessary. Check for loose or disconnected leads at the oil pressure sender located on the engine. The light will go on and stay on when the RUN-STOP switch is switched to the “Run” position with engine not running. NOTE: Ammeter light may also be LIT in an oil pressure fault condition.

Watts minimum) the engine accelerates and operates at full speed.

c. When welding ceases or the AC power load is

turned off, a fixed time delay of approximately 12 seconds starts.

d. If the welding or AC power load is not restarted

before the end of the time delay, the idler reduces the engine speed to low idle speed.

e. The engine will automatically return to high idle

speed when the welding load or A.C. power load is reapplied.

Idler Operational exceptions

When the WELDING TERMINALS switch is in the “Remotely Controlled” position the idler will operate as follows:

a. When the triggering device (Amptrol, Arc Start

Switch, etc.) is pressed the engine will accelerate and operate at full speed provided a welding load is applied within approximately 15 seconds.

• If the triggering device remains pressed but no welding load is applied within approximately 15 seconds the engine will return to low idle speed.

ENGINE ALTERNATOR AMMETER (K1846-2 Std., K1846-1 Opt.) AND LIGHT

The yellow engine alternator light is off when battery charging system is functioning normally. If light turns on, the engine protection system will shut down the engine. Check the engine alternator belt. Also, the alternator or the voltage regulator may not be operating correctly. The light may also come on due to a faulty flashing circuit. The light will remain on when the engine has been shut down due to a fault in the alternator, regulator, or the alternator belt.

7. IDLER SWITCH

Has two positions as follows: A) In the “High” position , the engine runs at

the high idle speed controlled by the governor.

B) In the “Auto” / position, the idler oper-

ates as follows:

a. When switched from “High” to “Auto” or after

starting the engine, the engine will operate at full speed for approximately 12 seconds and then go to low idle speed.

• If the triggering device is released or welding ceases the engine will return to low idle speed after approximately 15 seconds.

8. HOUR METER

The hour meter displays the total time that the engine has been running. This meter is a useful indicator for scheduling preventive maintenance.

b. When the electrode touches the work or power is

drawn for lights or tools (approximately 100

COMMANDER 500 CUMMINS

Page 22

B-5

OPERATION

B-5

WELDER CONTROLS (Items 9 through 13 )

9. WELD MODE & OUTPUT CONTROL

These two controls allow you to select between various welding output slopes and adjust the desired welding output. Refer to Table B.1 for a description of how these two controls work.

Table B.1 Weld Mode and Output Control

Weld Mode

Application

Sloped Output for Pipe Welding.

5 Range

Settings

90, 150, 200,

350, 500 (Max.

current on each

setting)

Touch Start TIG Welding

Constant Current Output for Fabrication and General Purpose Welding

Constant Voltage Output for MIG Wire or CORED WIRE Welding

Functions

If the WELD MODE switch is positioned between settings the previous setting is maintained until the switch is properly positioned on a setting.

OUTPUT also controls O.C.V. while in the 5 sloped output ranges.

1 Range setting

20-250 Amps

1 Range setting

30-575 Amps

1 Range setting

14 to 40 Volts

10. DIGITAL OUTPUT METERS

The digital output meters are located in the center of the control panel between the two large control knobs. The digital meters allow the output voltage (CV-WIRE mode) or current (CC-STICK, PIPE and TIG modes) to be set prior to welding using the OUTPUT control dial. During welding, the meters display the actual output voltage (VOLTS) and current (AMPS). A memory feature holds the display of both meters on the 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%.

11. WELDING TERMINALS SWITCH

The toggle switch on the control panel labeled “Weld Terminals On” and “Remotely Controlled”: is used to control the operation of the “solid state contactor” which allows for the selection of “Hot” or “Cold” weld-

Output

Provides a fine

adjustment of

welding current

from

Min (1) to Max

(10) within each

range

Provides Fine

Voltage

Adjustment

ing terminals. With the switch in the “Weld Terminals On” position the contactor is closed and the welding terminals are always “Hot”.

With the switch in the “Remotely Controlled” position the contactor operation is controlled by an Amptrol, Arc Start Switch or some other type of triggering device through the use of a control cable connected to the 14pin MS connector.

When the triggering device is pressed the contactor is closed and the welding terminals are “Hot”.

When the triggering device is released the contactor is opened and the welding terminals are “Cold”.

NOTE: The new Chopper Technology control circuitry automatically senses when a remote output control pot is plugged into either amphenol. Therefore, there is no need for a local / remote switch.

12. 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 automatically switches the OUTPUT control from control at the welder to remote control . When using the TOUCH START TIG mode with a TIG Module connected, the OUTPUT control is used to set the maximum current range of the CURRENT CONTROL on the TIG Module.

13. WELD OUTPUT TERMINALS + AND -

These 1/2 - 13 studs with flange nuts provide welding connection points for the electrode and work cables. For positive polarity welding the electrode cable connects to the “+” terminal and the work cable connects to this “-” terminal. For negative polarity welding the work cable connects to the “+” terminal and the electrode cable connects to this “-” terminal.

AUXILIARY POWER CONTROLS

(Items 14 - 17)

14. 120/240VAC RECEPTACLE

This is a 120/240VAC (14-50R) receptacle that provides 240VAC or can be split for 120VAC single phase auxiliary power. This receptacle has a 50 amp rating. Refer to the AUXILIARY POWER RECEPTACLES section in the installation chapter for further information about this receptacle. Also refer to the AUXILIARY POWER OPERATION section later in this chapter.

COMMANDER 500 CUMMINS

Page 23

B-6

OPERATION

B-6

15. CIRCUIT BREAKERS

These circuit breakers provide separate overload current protection for each 120V circuit at the 240V receptacle, each 120V receptacle, the 120VAC in the 14-Pin connector, the 42VAC in the 14-Pin connector and (for codes above 10840 only) battery circuit overload protection.

16. 120VAC RECEPTACLES

These two 120VAC (5-20R) receptacles provide 120VAC for auxiliary power. Each receptacle has a 20 amp total rating. Refer to the AUXILIARY POWER RECEPTACLES section in the installation chapter for further information about these receptacles. Also refer to the AUXILIARY POWER OPERATION section later in this chapter.

17. GROUND STUD

Provides a connection point for connecting the machine case to earth ground for the safest grounding procedure. Refer to “MACHINE GROUNDING” in the Installation chapter for proper machine grounding information.

18. VOLTMETER +/- SWITCH

Changes the polarity display on the wire feeder.

19. 14 - PIN CONNECTOR

For attaching wire feeder control cable. 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.

ENGINE OPERATION

STARTING THE ENGINE

1. Open the engine compartment door and check that

the fuel shutoff valve located to the left of the fuel filter housing is in the open position (lever to be in line with the hose).

2. Check for proper oil level and coolant level. Close

engine compartment door.

3. Remove all plugs connected to the AC power receptacles.

4. Set IDLER switch to “AUTO”.

5. Set the RUN/STOP switch to “RUN”. Observe that all

engine protection lights momentarily turn on, some lights may turn off before starting. Check the fuel gauge (K1846-2 only for codes 10840 and below) sure that there is an adequate fuel level.

6. Press and hold the engine START button for a minimum

of 2 seconds.

7. Release the engine START button when the engine

starts.

8. Allow the engine to warm up at low idle speed for several

minutes before applying a load and/or switching to high idle. Allow a longer warm up time in cold weather.

to make

20. ARC CONTROL

The ARC CONTROL WIRE/STICK dial is active in the WIRE and STICK modes, and has different functions in these modes. This control is not active in the TIG and PIPE modes.

CC-STICK mode: In this mode, 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 recommended that the ARC CONTROL be set to the minimum number without electrode sticking. Start with a setting at 0.

CV-WIRE mode: In this mode, 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 control. The proper setting depends on the procedure and operator preference. Start with a setting at 0.

COLD WEATHER STARTING

With a fully charged battery and the proper weight oil, the engine should start satisfactorily even down to about 15°F. If the engine must be frequently started below 25°F, it may be desirable to install the optional ether starter kit (K887-1). Installation and operating instructions are included in the kit.

STOPPING THE ENGINE

1. Switch the RUN/STOPswitch to “STOP”. This turns

off the voltage supplied to the shutdown solenoid. A backup shutdown can be accomplished by shutting off the fuel valve located on the fuel line.

COMMANDER 500 CUMMINS

Page 24

B-7

OPERATION

B-7

BREAK-IN PERIOD

The engine used to supply power for your welder is a heavy duty, industrial engine. It is designed and built for rugged use. It is very normal for any engine to use small quantities of oil until the break-in is accomplished. Check the oil level twice a day during the break-in period (about 200 running hours).

IMPORT

IN ORDER TO ACCOMPLISH THIS BREAK-IN, THE UNIT SHOULD BE SUBJECTED TO HEAVY LOADS, WITHIN THE RATING OF THE MACHINE. AVOID LONG IDLE RUNNING PERIODS.

ANT

TYPICAL FUEL CONSUMPTION

Refer to Table B.2 for typical fuel consumption of the COMMANDER 500 CUMMINS’s Engine for various operating scenarios.

Table B.2

Cummins B3.3 Engine Fuel Consumption

Cummins B3.3

56 Hp

@1800 RPM

Running Time for

25 gallons

(Hours)

PIPE WELDING

The COMMANDER 500 CUMMINS is equipped with special circuitry to minimize pop-outs in the five slope modes at any open circuit voltage.

For a soft arc characteristic, set the "WELD MODE" Switch to the lowest setting that still provides the current you need and set the "OUTPUT" near maximum. For example: to obtain 140 amps and a soft arc, set the " WELD MODE" Switch to the "150 MAX" position and then adjust the "OUTPUT" for 140 amps.

When a forceful "digging" arc is required, use a higher setting and lower the open circuit voltage. For example: to obtain 140 amps and a forceful arc, set the “ WELD MODE” to the "250 MAX" position and then adjust the "OUTPUT" to get 140 amps.

CONSTANT CURRENT (CC) WELDING

The CC - STICK position of “30 to 575", the "WELD MODE" Switch is designed for horizontal welds with all types of electrodes especially low hydrogen. The "OUTPUT" adjusts the full range of 30 to 575 amps. This setting provides a soft, constant current arc. If a more forceful arc is desired, then select the proper range from the slope controlled current ranges.

Low Idle - No Load 1475 RPM

High Idle - No Load 1900 RPM

DC CC Weld Output 500 Amps @ 40 Volts

Auxiliary Power 12,000 VA

.45 gallons/hour

(1.70 liters/hour)

.81 gallons/hour

( 3.07 liters/hour)

1.88 gallons/hour ( 7.12 liters/hour)

1.23 gallons/hour

(4.66 liters/hour)

55.6

30.9

13.3

20.3

WELDER OPERATION

STICK WELDING

The COMMANDER 500 CUMMINS can be used with a broad range of DC stick electrodes.

The “WELD MODE” switch provides five overlapping slope controlled current ranges. The OUTPUT adjusts the current from minimum to maximum within each range. Voltage is also controlled by the OUTPUTin the slope controlled setting. These slope controlled settings are intended for “out-of-position” welding, including pipe welding, where the operator would like to control the current level by changing the arc length.

In the CC mode, sticking can be prevented by adjusting the “ARC CONTROL”. Turning this control clockwise, increases the short circuit current, thus preventing sticking. This is another way of increasing arc force.

TIG WELDING

The most clockwise position of the WELD MODE switch is for TIG welding in the range of 20 amps to 250 amps, with a “Touch Start” feature. To initiate a weld, the OUTPUT is first set to the desired current and the tungsten 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 establishes the arc.

The COMMANDER 500 CUMMINS can be used in a wide variety of DC Tungsten Inert Gas (TIG) welding applications. In general the “Touch Start” feature allows contamination free starting without the use of a Hi-Freq unit. But the K930-1 or -2 TIG module or K799 Hi-Freq unit, can be used with the COMMANDER 500 CUMMINS. The settings for these follow the tungsten current range table.

COMMANDER 500 CUMMINS

Page 25

B-8

OPERATION

B-8

Table B.3 TYPICAL CURRENT RANGES

DCEN (-) DCEP (+)

Tungsten

Electrode

Diameter

in. (mm)

0 .010 (.25)

0.020 (.50)

0.040 (1.0) 1/16 (1.6) 3/32 (2.4)

1/8 (3.2) 5/32 (4.0)

3/16 (4.8) 1/4 (6.4)

(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 EWTh-1

2% Thoriated EWTh-2 Though not yet recognized by the AWS, Ceriated Tungsten is now widely accepted as a substitute for 2% Thoriated Tungsten in AC and DC applications.

1%, 2%

Thoriated

Tungsten

2-15 5-20

15-80

70-150

150-250 250-400

400-500 500-750

750-1000

1%, 2%

Thoriated

Tungsten

(3) (3)

(3) 10-20 15-30

25-40 40-55

55-80

80-125

(1)

FOR TUNGSTEN ELECTRODES

Approximate Argon Gas Flow Rate

C.F.H. (l/min.)

Aluminum Stainless Steel

3-8 (2-4) 5-10 (3-5) 5-10 (3-5)

5-10 (3-5) 13-17 (6-8)

15-23 (7-11) 21-25 (10-12)

23-27 (11-13) 28-32 (13-15)

3-8 (2-4) 5-10 (3-5) 5-10 (3-5)

9-13 (4-6) 11-15 (5-7)

11-15 (5-7) 13-17 (6-8)

18-22 (8-10) 23-27 (11-13)

(2)

TIG TORCH

Nozzle

Size (4), (5)

#4, #5, #6

#5, #6 #6, #7, #8

#8, #10

(3) DCEP is not commonly used in these sizes. (4) TIG torch nozzle “sizes” are in multiples of 1/16ths of an inch:

# 4 = 1/4 in. (6 mm) # 5 = 5/16 in. (8 mm) # 6 = 3/8 in. (10 mm) # 7 = 7/16 in. (11 mm) # 8 = 1/2 in. (12.5 mm) #10 = 5/8 in. (16 mm)

(5) TIG torch nozzles are typically made from alumina ceramic. Special applications may require lava nozzles, which are

less prone to breakage, but cannot withstand high temperatures and high duty cycles.

COMMANDER 500 CUMMINS SETTINGS WHEN USING THE K799 HI-FREQ UNIT

• Set the WELD MODE switch to the “20-250 setting” (TIG)

• Set the IDLER switch to the “HIGH” position.

• Set the WELDING TERMINALS switch to the “Weld

Terminals On” position. This will close the solid state contactor and provide an always “hot” electrode.

(Note: This is necessary because the K799 circuitry with respect to the #2 and #4 leads does not provide the proper signal to open and close the solid state contactor in the COMMANDER 500 CUMMINS).

COMMANDER 500 CUMMINS SETTINGS WHEN USING THE K930-2 TIG MODULE

• Set the WELD MODE switch to the “20-250 Setting” (TIG).

• Set the IDLER switch to the “AUTO” position.

• Set the WELDING TERMINALS switch to the “Remotely

Controlled” position. This will keep the solid state contactor open and provide a “cold” electrode until the triggering device (Amptrol or Arc Start Switch) is pressed.

COMMANDER 500 CUMMINS

Page 26

B-9

OPERATION

B-9

WIRE FEED (CONSTANT VOLTAGE) WELDING

Connect a wire feeder to the COMMANDER 500 CUMMINS and set welder controls according to the instructions listed earlier in this section.

The COMMANDER 500 CUMMINS in the ”CV-WIRE” position, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) electrodes and solid wires for MIG welding (gas metal arc welding). Welding can be finely tuned using the “ARC CONTROL”.

Some recommended Innershield electrodes are: NR-311, NS-3M, NR-207, NR-203 Ni 1%, NR-204-H.

Recommended Outershield electrodes are: 0S-70, 0S71M.

Some recommended solid wires for MIG welding are: .035 (0.9 mm), .045 (1.1 mm) and .052 (1.3 mm), L-50 and L-56, .035 (0.9 mm) and .045 (1.1 mm) Blue Max MIG 308 LS.

For any electrodes, including the above recommendations, the procedures should be kept within the rating of the machine. For additional electrode information, see Lincoln publications N-675, GS-100 and GS-210.

AUXILIARY POWER OPERATION

Start the engine and set the IDLER control switch to the desired operating mode. Full power is available regardless of the welding control settings, if no welding current is being drawn.

The auxiliary power of the Commander consists of two 20 Amp-120VAC (5-20R) duplex receptacles and one 50 Amp-120/240 VAC (14-50R) receptacle. The 120/240VAC receptacle can be split for single phase 120 VAC operation.

The auxiliary power capacity is 12,000 watts of 60 Hz, single phase power. The auxiliary power capacity rating in watts is equivalent to volt-amperes at unity power factor. The maximum permissible current of the 240 VAC output is 50 A. The 240 VAC output can be split to provide two separate 120 VAC outputs with a maximum permissible current of 50 Aper output to two separate 120 VAC branch circuits. Output voltage is within ± 10% at all loads up to rated capacity.

NOTE: The 120/240V receptacle has two 120V outputs of different phases and cannot be paralleled.

The auxiliary power receptacles should only be used with three wire grounded type plugs or approved double insulated tools with two wire plugs.

The current rating of any plug used with the system must be at least equal to the current capacity of the associated receptacle.

SIMULTANEOUS WELDING AND AUXILIARY POWER LOADS

It must be noted that the above auxiliary power ratings are with no welding load. Simultaneous welding and power loads are specified in table B.4. The permissible currents shown assume that current is being drawn from either the 120 VAC or 240 VAC supply (not both at the same time).

ARC GOUGING

For optimal performance when arc gouging, set the COMMANDER 500 CUMMINS’s “WELD MODE” switch to the “CC - STICK” position, and the “ARC CONTROL” to 10.

Set the “OUTPUT” knob to adjust output current to the desired level for the gouging electrode being used according to the ratings in the following table:

ELECTRODE CURRENT RANGE

DIAMETER (DC,electrode positive)

1/8” 60-90 Amps 5/32” 90-150 Amps 3/16” 200-250 Amps 1/4 300 Amps 5/16” 350-450 Amps 3/8” 450 Amps*

* Maximum current setting is limited to the COMMAN-

DER 500 CUMMINS’s maximum of 575 Amps.

PARALLELING

When paralleling machines in order to combine their outputs, all units must be operated in th CC - STICK mode only. To achieve this turn the WELD MODE switch to the CC - STICK position. Operation in other modes may produce erratic outputs, and large output imbalances between the units.

COMMANDER 500 CUMMINS

Page 27

B-10

TABLE B.4 COMMANDER 500 CUMMINS Simultaneous Welding

Welding

Output Range

Setting

Welding Output

OPERATION

and Power Loads

Permissible

Power - Watts

(Unity Power

Factor)

Permissible

Current in

@120 V ±10% *

B-10

Auxiliary Amperes

@ 240 V ±10%

Current

(Amps)

15 15 20 20 25 30 38 50

Voltage

(Volts)

120 240 120 240 240 240 240 240

30-575

500 350 200 150

500A/40V 500A/40V 350A/30V 200A/28V 150A/27V

90A/25V

0 0

9500 12000 12000 12000

0 0

80* 100** 100** 100**

* Each duplex receptacle is limited to 20 amps. ** Not to exceed 50 Aper 120 VAC branch circuit when splitting the 240

VAC output.

TABLE B.5 COMMANDER 500 CUMMINS Extension Cord Length

Recommendations

Load

(Watts)

1800 3600 2400 4800 6000 7200 9000

12000

14 AWG 12 AWG 10 AWG 8 AWG 6 AWG 4 AWG 30 60

(9)

(18)

Conductor size is based on maximum 2.0% voltage drop.

Maximum Allowable Cord Length in ft. (m) for Conductor Size

40 75 30 60

(12) (23)

(9)

(18)

150

100

90 75

(23) (46) (15) (30) (27) (23)

125 225

88 175 150 120 100

(38) (69) (27) (53) (46) (37) (30)

175 350 138 275 225 175 150 125

0 40 50 50 50

(53)

(107)

(42) (84) (69) (53) (46) (38)

300 600 225 450 250 300 250 200

(91)

(183)

(69)

(137)

(76) (91) (76) (61)

COMMANDER 500 CUMMINS

Page 28

C-1

ACCESSORIES

C-1

OPTIONAL FIELD INSTALLED ACCESSORIES

K802N POWER PLUG KIT - Provides four 120V plugs rated at 20 amps each and one dual voltage, full KVA plug rated at 120/240V,

50 amps. 120V plug may not be compatible with NEMA common household receptacles.

K802-R POWER PLUG KIT - Provides four 120V plugs rated 15 amps each and one dual voltage, full KVA plug rated at 120/240V,

50 amps, 120V plug is compatible with NEMA common household receptacles.

K857 25 ft. (7.5 m) or K857-1 100 ft. (30.4 m) REMOTE CONTROL - Portable control provides same dial range as the output

control on the welder from a location up to the specified length from the welder. Has convenient plug for easy connection to the welder. The COMMANDER 500 CUMMINS is equipped with a 6 pin connector for connecting the remote control.

K704 ACCESSORY SET - Includes 35 feet (10 m) of electrode cable and 30 feet (9 m) of work cable, headshield, work clamp and electrode holder. Cable is rated at 500 amps, 60% duty cycle.

K1690-1 (1 Duplex) GFCI Kit - Includes one UL approved 115V ground fault circuit interrupter duplex type receptacle with cover and installation instructions. Replaces the factory installed 115V duplex receptacle. The receptacle of the GFCI duplex is rated at 20 amps, the maximum total current from the GFCI duplex is limited to 20 amps. Two kits are required.

K1768-2 Dual Output Meters and Gauges - Dual output meters provide preset ability of voltage for wire welding and current for stick welding. Measures both current and voltage when welding. Gauges include: battery ammeter, engine temperature, and engine oil pressure. Fuel gauge is not available in kit form.

K1816-1 Full KVA Adapter Kit - Plugs into the 120/240v NEMA 14-50R receptacle on case front (which accepts 4-prong plugs) and converts it to a NEMA 6-50R receptacle, (which accepts 3-prong plugs.

K1858-1 Service Indicator Kit - Provides a GO / NO-GO visual indication of air cleaner element useful service life. Filter service based on restriction readings allows the longest life possible from the filter and best engine protection. with K887-1 Ether Start Kit at the same time.)

(Cannot be used

(K953-1) TRAILER - Two-wheeled trailer with optional

fender and light package. For highway use, consult applicable federal, state, and local laws regarding possible additional requirements. There 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 Rack

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.

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

(K957-1) TRAILER - Two-wheeled trailer for in-plant and

yard towing at speeds under 20 mph only.Order:

K957-1 Trailer K958-1 Ball Hitch K958-2 Lunette Eye Hitch K959-2 Fender & Light Kit K965-1 Cable Rack

K887-1 ETHER START KIT - Provides maximum cold weath-

er starting assistance for frequent starting below 25 Required Ether tank is not provided with kit. (Cannot be used with K1858-1 Service Indicator Kit at the same time.)

F(-4oC).

WARNING

K1847-1 SP ARK ARRESTOR KIT- Easily mounts to standard

muffler.

K949-2 OIL DRAIN KIT - Includes ball valve, hose and clamp.

COMMANDER 500 CUMMINS

Page 29

C-2

ACCESSORIES

RECOMMENDED OPTIONAL EQUIPMENT

STICK

K704 Accessory Kit which includes:

• Electrode holder and cable.

• Ground clamp and cable.

• Headshield.

K857 Remote Control Kit is optional for remote current control.

TIG

Magnum TIG Torch Magnum Parts Kit and Argon gas K930-ALL TIG Module (not required for scratch start DC TIG welding)

K936-1 Control Cable K870 Foot Amptrol

Also available:

K963-1/-2 Hand Amptrol K814 Arc Start Switch K937-45 Control Cable Extension K844-1 Water Valve

C-2

WIRE FEED WELDING OPTIONS

• LN-25 • LN-7

• LN-23P • LN-8

• NA-3 • Spool Gun & K488 Module

• LN-742

HIGH FREQUENCY GENERATORS FOR TIG APPLICATIONS

The K799 Hi-Freq Unit and the K930-ALLTIG Modules are suitable for use with the COMMANDER 500 CUMMINS. The Commander is equipped with the required R.F. bypass circuitry for the connection of high frequency generating equipment. The high frequency bypass network supplied with the K799 Hi-Freq Unit does NOT need to be installed into the Commander.

The Commander and any high frequency generating equipment must be properly grounded. See the K799 Hi-Freq Unit and the K930-All TIG Module operating manuals for complete instructions on installation, operation, and maintenance.

COMMANDER 500 CUMMINS

Page 30

D-1

MAINTENANCE

D-1

SAFETY PRECAUTIONS

WARNING

•Have a qualified technician do the maintenance and troubleshooting work.

•Turn the engine off before working inside the machine.

•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.

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

Read the Safety Precautions in front of this manual and the engine instruction manual before working on this machine.

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 the equipment.

ROUTINE AND PERIODIC MAINTENANCE

DAILY

a. Check the crankcase oil level . b. Refill the fuel tank to minimize moisture condensa-

tion in the tank.

c. Open the water drain valve located on the bottom of

the water separator element 1 or 2 turns and allow to drain into a container suitable for diesel fuel for 2 to 3 seconds. Repeat the above drainage procedure until diesel fuel is detected in the container.

d. Check coolant level.

ENGINE MAINTENANCE

Refer to the “Periodic Checks” section of the Engine Operator’s Manual for the recommended maintenance schedule of the following:

a) Engine Oil and Filter b) Air Cleaner c) Fuel Filter - and Delivery System d) Alternator Belt e) Battery f) Cooling System

Refer to Table D.1 at the end of this section for various engine maintenance components.

AIR FILTER

CAUTION

EXCESSIVE AIR FILTER RESTRICTION WILL RESULT IN REDUCED ENGINE LIFE.

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

The air filter element is a dry cartridge type. It can be cleaned and reused; however, damaged elements should not be reused. Stop engine after 100 hours of running time and clean filter element , replace the filter if necessary . Service air cleaner regularly according to Engine Operator’s Manual.

1. Locate the air filter canister located behind the engine door on the top of the engine.

2. Remove air filter element.

3. Remove loose dirt from element with compressed air or water hose directed from inside out.

Compressed Air: 100 psi maximum with nozzles at

least one inch away from element.

Water Hose: 40 psi maximum without nozzle.

4. Soak element in a mild detergent solution for 15 minutes. Do not soak more than 24 hours. Swish element around in the solution to help remove dirt.

WEEKLY

Blow out the machine with low pressure air periodically. In particularly dirty locations, this may be required once a week.

COMMANDER 500 CUMMINS

5. Rinse elements from inside out with a gentle stream of water (less than 40 psi) to remove all suds and dirt.

6. Dry element before reuse with warm air at less than

F (71oC). Do not use a light bulb to dry the ele-

160 ment.

Page 31

D-2

MAINTENANCE

D-2

7. Inspect for holes and tears by looking through the element toward a bright light. Check for damaged gaskets or dented metal parts. Do not reuse damaged elements. Protect element from dust and damage during drying and storage.

8. Reinstall air filter element. After six cleanings replace air filter. A cleaned filter will

have approximately 70% of the life of a new filter element. Arestricted filter element may not appear excessively dirty.

FUEL FILTERS

WARNING

When working on the fuel system

• Keep naked lights away, do not smoke !

• Do not spill fuel !

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

BATTERY HANDLING

WARNING

GASES FROM BATTERY can explode.

• Keep sparks, flame and cigarettes away from battery.

To prevent EXPLOSION when:

• INSTALLING A NEW BATTERY- disconnect negative cable from old battery first and connect to new battery last.

• 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 engine foot.

The COMMANDER 500 CUMMINS is equipped with a Fuel Filter located after the lift pump and before fuel injectors.The procedure for changing the filter is as follows.

1. Close the fuel shutoff valve.

2. Clean the area around the fuel filter head. Remove the filter. Clean the gasket surface of the filter head and replace the o-ring.

3. Fill the clean filter with clean fuel, and lubricate the o-ring seal with clean lubricating oil.

4. Install the filter as specified by the filter manufacturer.

CAUTION

Mechanical overtightening will distort the threads, filter element seal or filter can.

COOLING SYSTEM

BATTERY ACID CAN BURN EYES AND SKIN.

• Wear gloves and eye protection and be careful when working near battery. Follow instructions printed on battery.

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

PREVENTING ELECTRICAL DAMAGE

1. When replacing, jumping, or otherwise connecting the battery to the battery cables, the proper polarity must be observed. Failure to observe the proper polarity could result in damage to the charging circuit. The positive (+) battery cable has a red terminal cover.

2. If the battery requires charging from an external charger, disconnect the negative battery cable first and then the positive battery cable before attaching the charger leads. Failure to do so can result in damage to the internal charger components. When reconnecting the cables, connect the positive cable first and the negative cable last.

PREVENTING BATTERY DISCHARGE

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

The COMMANDER 500 CUMMINS is equipped with a pressure radiator. Keep the radiator cap tight to prevent loss of coolant. Clean and flush the coolant system periodically to prevent clogging the passage and overheating the engine. When antifreeze is needed, always use the permanent type.

COMMANDER 500 CUMMINS

PREVENTING BATTERY BUCKLING

Tighten nuts on battery clamp until snug.

Page 32

D-3

MAINTENANCE

D-3

CHARGING THE BATTERY

When you charge, jump, replace, or otherwise connect battery cables to the battery , be sure the polarity is correct. Improper polarity can damage the charging circuit. The Commander positive (+) battery terminal has a red terminal cover.

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 co can result in damage to the internal charger components.

Follow the instructions of the battery charger manufacturer for proper charger settings and charging time.

NAMEPLATES / WARNING DECALS MAINTENANCE

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.

Table D.1 Engine Maintenance Components

WELDER / GENERATOR MAINTENANCE

STORAGE

Store the Commander in clean, dry protected areas.

CLEANING

Blow out the generator and controls periodically with low pressure air. do this at least once a week in particularly dirty areas.

BRUSH REMOVAL AND REPLACEMENT

It is normal for the brushes and slip rings to wear and darken slightly. Inspect the brushes when a generator overhaul is necessary.

WARNING

Do not attempt to polish slip rings while the engine is running.

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

ITEM

Air Cleaner Element

Oil Filter

Fan Belt

Fuel Strainer

Fuel Filter /

Water Separator

Battery

Engine Oil Change

MAKE

Donaldson

Fleetguard

Cummins

Fleetguard

Cummins

Fleetguard

Cummins

Fleetguard

-––––––

See Manual

PART NUMBER

P181052

A302C

AF437K

C6002112110

LF3855

C0412021748

3826094

FF5079

C6003112120

FS19594

BCI GROUP 34

–––––––––

SERVICE INTERVAL

Replace every 200 hours. (Replace more

often when used in dusty and / or

high ambient temperature conditions).

Replace every 750 hours or 3 months,

whichever is less.

Inspect every 1000 hours or 12 months,

whichever is less.

Inspect and replace monthly, as

required. Replace annually.

Replace every 500 hours or 6 months,

whichever is less.

Inspect every 500 hours.

Change every 750 hours or 3 months,

whichever is less. Check daily.

COMMANDER 500 CUMMINS

Page 33

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.

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.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

COMMANDER 500 CUMMINS

Page 34

E-2

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-2

PROBLEMS

(SYMPTOMS)

Major Physical or Electrical Damage is Evident.

Engine will not “crank”.

Engine will “crank” but not start.

POSSIBLE AREAS OF

MISADJUSTMENT(S)

ENGINE PROBLEMS

1. Contact your Local Lincoln Authorized Field Service Facility.

1. Battery is low. Charge Battery.

2. Loose battery cable connections. Inspect, clean and tighten.

1. Out of fuel. Fill fuel tank.

2. Fuel shut off valve is in off

position.

3. High coolant temperature (Indicator light lit. Check engine cooling system.

RECOMMENDED

COURSE OF ACTION

Engine shuts down shortly after starting.

Battery does not stay charged.

4. Low battery voltage.

1. Low fuel. (Indicator light lit K1846-2 only) Add fuel.

2. Low output of battery charging alternator. (Indicator light lit) Check Replace if necessary.

3. High coolant temperature (Indicator light lit). Check engine cooling system.

1. Faulty battery. Replace.

cooling blower belt.

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

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

COMMANDER 500 CUMMINS

Page 35

E-3

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-3

PROBLEMS

(SYMPTOMS)

Engine will not idle down to low speed.

Engine will not go to high idle when attempting to weld.

POSSIBLE AREAS OF

MISADJUSTMENT(S)

FUNCTION PROBLEMS

1. Idler switch in High idle position. Set switch to Auto.

2. External load on welder or auxiliary power. Remove all external loads.

1. Poor work lead connection to work. Make sure work clamp is tightly connected to clean base metal.

2. ”Welding Terminals” switch is in wrong position. Set to “WELD TERMINAL ON” when welding without a welding terminal control cable. Refer to Operations chapter for proper use of this switch.

RECOMMENDED

COURSE OF ACTION

Engine will not go to high idle when using auxiliary power.

1. Auxiliary power load is less than 100 watts. Idler may not respond with less than a 100 watt load. Set Idler to “High”

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

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

COMMANDER 500 CUMMINS

Page 36

E-4

TROUBLESHOOTING

Observe all Safety Guidelines detailed throughout this manual

E-4

PROBLEMS

(SYMPTOMS)

No welding power output.

Welder has output and no control.

No auxiliary power.

POSSIBLE AREAS OF

MISADJUSTMENT(S)

OUTPUT PROBLEMS

1. Welding terminals switch in wrong position. Place switch in “WELD TERMINAL ON” position when welding without welding terminal control cable. Refer to Operation chapter for proper switch function.

1. Poor remote kit connection. Check connections.

2. Faulty remote kit. Replace if necessary.

1. Open circuit breakers. Reset breakers. If breakers keep tripping check connections to auxiliary receptacles. Also make sure load does not exceed receptacles current rating. Refer to Auxiliary Connections in the Installation and Operation chapters.

2. Faulty connections to auxiliary receptacles. Check connections.

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.

3. Faulty auxiliary circuit wiring.

CAUTION

COMMANDER 500 CUMMINS

Page 37

F-1

DIAGRAMS

F-1

AUXILIARY WINDINGS

STATOR

OF CONTROL BOX

120V AUXILIARY POWER

ON BOTTOM LEFT

"INSULATED STUD"

GND-F

GND-C

CONTROL PANEL

GND. SCREW ON

GND-D

AUXILIARY POWER

STICK

TIG

30-575A 2

500A

350A

200A

150

90A

WIRE

W1 & W6

ANDER 500 WIRING DIAGRAM

W2 & W3

COMM

W4 & W5

COM MANDER 500 WIRING DIAGRAM

P50

321

HEATSINK

POS.

WELD LEAD TO PASS

THRU TOROID ONCE

DIRECTIONS

LEADS 3 & 6A

IN OPPOSITE

PASS THROUGH

TOROID TWICE

J10

115/230V

GND-D

CB3

10A

42V WINDING

STATOR

(VIEWED FROM REAR)

987

654

J50

LEFTSIDE

LEAD

WELD

ELECT.

ENGINE HARNESS

J11

SILVER

HOT (GOLD)

20A

50A

CB2

CB4

GND-F

GND-H

GND-G

BOX "LEFT SIDE"

BACK OF CONTROL

AUXILIARY NEUTRAL STUD

42A

CB6

41A

214

215

213

216

217

218

STATOR

222

WELD

220

WINDIN GS

789

456

251

P51

249

TS2

321

J41

234

123

262

241

232S

200A

228

226A

200D

201A

789

123

456

226

228A

241A

262A

232T

200C

201B

200E

201

200D

300V

201B

200C

200E

3200MFD

201A

200A

200B

BRUSH

ROTOR

BRUSH

201

POSITIVE BRUSH CONNECTED

TO THE LAMINATION

TO SLIP RING NEAREST

42A

41A

J42

PCB2

POWER SUPPLY

23A

25A

987

654

J51

300 AMP

MODULE

HEATSINK

PC BOARD TO

HEAT SINK CONN.

D2 DIODE

PCB 6

POS

POS.

NEG.

POS.

NEG.

POWER MODULE

RIGHT SIDE

300 AMP

MODULE

PC BOARD TO

HEAT SINK CONN.

W10

PCB 2

13A

14A

POS.

NEG.

L1 CHOKE

GND-K

WORK

208

206B

BYPASS

FILTER

ASSEMBLY

206A

208A

208B

POLARITY

SWITCH

POSITION

POSITIVE POLARITY

SWITCH SHOWN IN

GND-C

GND-E

J12

SILVER

50A

20A

CB1

GND-E

CORRESPONDING SETTINGS

FOR TAP NUMBERS

(AS VIEWED FROM THE FRONT)

20-250A

EMPTY

14 TO 40V

SELECTOR SWITCH

RECTIFER

BRIDGE

789

456

249

250

TS1

123

D1 DIODE

MODULE

PC BOARD TO

HEAT SINK CONN.

PC BOARD TO

HEAT SINK CONN.

POS

NEG.

261

261A

260

260A

204S

206S

50MV=400AMPS

200B

111213

200

PN 3-02

G4169

233

234

COIL

HOLD

START BUTTON

20A

ON STANDARD MODELS,

AMPHENOL 1

262

224

231

236B

236A

CB5

238A

236C

LEADS 238, 238A & 236C

ARE TO BE BOLTED

TOGETHER AND TAPED.

LEADS 228A & 241A

ARE TO BE TAPED

DENOTES ITEMS

INCLUDED ON DELUXE

MODELS ONLY

45678

AMMETER

SWITCH

SENSOR

OIL PRESSURE SWITCH & SENSOR

228

236

RUN

STOP

SWITCH

RUN/STOP

SHOWN IN

CONTROL BOX

GND. STUD ON BOTTOM OF

FUEL

232C

OIL

TEMP

232B

II I

OIL

PRESS.

238

CHRG.

BATT.

INDIVIDUALLY AND TIED

INTO HARNESS.

M10

METER KIT OPTIONAL

75A

77A

76A

76B

75B

77B

ABCDE

REMOTE

CONTROL

TEMP. SENSOR & SWITCH

232J

232D

"RUN" POS.

GND-G

232R

GOLD

247 246

GOLD

243

GOLD

252

ON STANDARD MODEL

CONTACTOR

SWITCH

SENSOR

241

SENSOR

FUEL LVL.

229

242D

OUTPUT PANEL

GROUND STUD ON

231

236

236C

232

232H

227

232A

265

242D

GND-J

238

232K

242B

242A

229

241A

242C

228A

GAUGES

OPTIONAL ON

STANDARD MODEL

232K

232A

232L

232M

232N

STUD

12VDC

INSULATED

SILVER

TEMP.

232G

SILVER

LOW

PRESS.

232F

SILVER

ALT.

232P

SILVER

TEMP.

WELDER

253

3 TURNS

THRU

TOROID

4 3

220

204S

206S

3 TURNS

THRU

TOROID

GND-B

AMPHENOL 2

GROUND

227

265

SOL.

226A

COIL

HOLD

COIL

PULL

IDLE

239

233

234

224

281

J52

P52

239A

233A

234A

281A

224A

SHOWN IN

"HIGH" POSITION

232D

232T

HIGH

256

IDLER

CONTROL

232W

MULTI-LEAD

HOUR

METER

SHOWN IN

CONTROL SWITCH

WELDING TERMINALS

"ALWAYS ON" POSITION

SHUTDOWN

232L

232S

232M

AUTO

257

262A

262B

232R

279

278

BACK

FROM

10K

VIEWED

PINCH POT

277

CCW

OUTPUT

CONTROL

BACK

FROM

VIEWED

208B

M10

456

M10

M M

VOLTMETER

42A

41A

75B

76B

77B

206A

42VAC

115VAC

GND-A

DCH

EFG

WORK

REMOTE

GROUND

CONTACTOR

CONTROL

LEFT SIDE

MOUNTING FOOT

STUD ON ENGINE

GROUNDING BOLT

ON ENGINE BLOCK

RIGHT SIDE

MOUNTING FOOT

STUD ON ENGINE

12V BATTERY

GND-K

(+)

281

EXC

MOTOR

SENSE

STARTING

STARTER

SOLENOID

239

227

232N

265

PCB4

BATTERY

BOARD

PROGRAMMING

PCB1

PERIPHERAL BD.

75A

J10

76A

AMPHENOL

77A

4 1

M M

VOLT METER

MODE

253

250

J11

252

THERMAL

251

AMMETER

SHUNT

ENGINE GROUND

GND-H

(-)

FRAME

NEG

POS

239

238

ALTERNATOR

GND-J

BACK OF CONTROL BOX

GND STUD ON RIGHT SIDE

242B

GND-A

GND-B

GND-K

PCB8

PULL COIL BD.

403

405

402

404

J65

401

4 1

402

270

401

271

232

J43

281A

200

J30

J32

J31

777675

CONTROL POT

115A

118A

101A

J13

105A

116A

260A

261A

404

J12

232W

226

MISC CONTROL POWER

256

208B

257

277

1 3

279

278

HOT START PINCH

gram for your particular machine is pasted inside the machine on one of the enclosure panels.

PCB3

WELD BOAR D

PROGRAMMING MACHINE SELECT

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific dia-

COMMANDER 500 CUMMINS

Page 38

F-2 CONNECTION DIAGRAM:

DIAGRAMS

F-2

COMMANDER 500 CUMMINS

Page 39

F-3 CONNECTION DIAGRAM:

LN-7

WIRE

DIAGRAMS

FEEDER

K291 OR K404

INPUT CABLE

K775 OPTIONAL

REMOTE CONTROL

F-3

7-2000

S23983

Only qualified personnel should install,use

Keep guards in place.

or service this equipment.

Keep away from moving parts.

WARNING

Do not operate with panels open.

Disconnect NEGATIVE (-) BATTERY LEAD

before servicing.

Do not touch electrically live parts.

N.D.

81424131313232

SPARE

}

224

K867 UNIVERSAL

GREEN

GND

ADAPTER PLUG

757677

TO WORK

}

N.E.

COMMANDER / K867 / K775 / LN-7 CONNECTION DIAGRAM

14 PIN

AMPHENOL

TO WORK

ELECTRODE

COMMANDER 500 CUMMINS

TO WIRE FEED UNIT

ELECTRODE CABLE

ANY INCREASE OF THE HIGH IDLE ENGINE RPM BY CHANGING THE GOVERNOR SETTING OR OVERRIDING THE THROTTLE LINKAGE WILL CAUSE

CAUTION :

N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE

APPILICATIONS. SEE OPERATING MANUAL.

AN INCREASE IN THE THE AC AUXILIARY VOLTAGE. IF THIS VOLTAGE GOES OVER 140 VOLTS, WIRE FEEDER CONTROL CIRCUITS MAY BE

THE ENGINE WELDER OPERATING MANUAL.

DAMAGED. THE ENGINE GOVERNOR SETTING IS PRE-SET AT THE FACTORY - DO NOT ADJUST ABOVE RPM SPECIFICATIONS LISTED IN

PLACE WIRE FEEDER SWITCH TO "WIRE FEEDER WITH CONTROL CABLE POSITION. N.B. USE VOLTMETER SWITCH TO SELECT DESIRED ELECTRODE POLARITY. POSITION THE "SELECTOR" SWITCH TO "WIRE WELDING CV".

N.C. IF OPTIONAL REMOTE OUTPUT CONTROL IS USED,CONTROL IS AUTOMATICALLY SWITCHED TO REMOTE CONTROL.

N.D. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

N.E. SPLICE LEADS AND INSULATE.

Page 40

F-4 CONNECTION DIAGRAM:

DIAGRAMS

F-4

COMMANDER 500 CUMMINS

Page 41

F-5 CONNECTION DIAGRAM:

DIAGRAMS

F-5

COMMANDER 500 CUMMINS

Page 42

F-6 CONNECTION DIAGRAM:

or service this equipment.

Only qualified personnel should install,use

Keep away from moving parts.

Keep guards in place.

LN-8

WIRE

N.C.

FEEDER

}

DIAGRAMS

K196

INPUT CABLE

GND

F-6

7-2000

S23989

N.D.

}

COMMANDER / K867 / LN-8 CONNECTION DIAGRAM

WARNING

Do not operate with panels open.

before servicing.

Disconnect NEGATIVE (-) BATTERY LEAD

Do not touch electrically live parts.

SPARE

14 PIN

AMPHENOL

K867 UNIVERSAL

TO WORK

GND

ADAPTER PLUG

TO WORK

ELECTRODE CABLE

TO WIRE FEED UNIT

ELECTRODE

COMMANDER 500 CUMMINS

ANY INCREASE OF THE HIGH IDLE ENGINE RPM BY CHANGING THE GOVERNOR SETTING OR OVERRIDING THE THROTTLE LINKAGE WILL CAUSE

CAUTION :

N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE

THE ENGINE WELDER OPERATING MANUAL.

AN INCREASE IN THE THE AC AUXILIARY VOLTAGE. IF THIS VOLTAGE GOES OVER 140 VOLTS, WIRE FEEDER CONTROL CIRCUITS MAY BE

DAMAGED. THE ENGINE GOVERNOR SETTING IS PRE-SET AT THE FACTORY - DO NOT ADJUST ABOVE RPM SPECIFICATIONS LISTED IN

APPICATIONS. SEE OPERATING MANUAL.

N.B. USE VOLTMETER SWITCH TO SELECT DESIRED ELECTRODE POLARITY. POSITION THE SELECTOR SWITCH TO "WIRE WELDING CV".

N.C. INSULATE EACH UNUSED LEAD INDIVIDUALLY.

N.D. SPLICE LEADS AND INSULATE.

Page 43

F-7 CONNECTION DIAGRAM:

DIAGRAMS

F-7

COMMANDER 500 CUMMINS

Page 44

F-8 CONNECTION DIAGRAM:

DIAGRAMS

F-8

COMMANDER 500 CUMMINS

Page 45

F-9 CONNECTION DIAGRAM:

DIAGRAMS

TO WORK

F-9

4-14-2000

S24787-6

ENGINE WELDERS /LN-8 CONNECTION DIAGRAM

MOVING PARTS can injure

WARNING

ELECTRIC SHOCK can kill

Keep away from moving parts.

Keep guards in place.

Do not operate with panels open.

Disconnect NEGATIVE (-) Battery lead

or service this equipment.

Only qualified personnel should install,use

CABLE PLUG

TO LN-8 INPUT

K595 CONTROL CABLE

ELECTRODE CABLE

TO WIRE FEED UNIT

before servicing.

Do not touch electrically live parts.

14 PIN

AMPHENOL

COMMANDER 500 CUMMINS

CAUTION:

ANY INCREASE OF THE HIGH IDLE ENGINE RPM BY CHANGING THE GOVERNOR SETTING OR OVERRIDING THE THROTTLE LINKAGE WILL CAUSE

AN INCREASE IN THE AC WIRE FEEDER VOLTAGE, WHICH CAN DAMAGE THE CONTROL CIRCUIT. THE ENGINE GOVERNOR SETTING IS PRE-SET

AT THE FACTORY – DO NOT ADJUST ABOVE RPM SPECIFICATIONS LISTED IN THE ENGINE WELDER OPERATING MANUAL.

N.A. WELDING CABLES MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE

APPLICATIONS. SEE OPERATING MANUAL.

N.B. CONNECT WELDING CABLES TO OUTPUT STUDS FOR DESIRED POLARITY. POSITION THE WIRE FEEDER VOLTMETER SWITCH TO

MATCH THE POLARITY OF THE ELECTRODE CABLE.

N.C. PLACE IDLER SWITCH IN “HIGH” POSITION.

Page 46

F-10 CONNECTION DIAGRAM:

DIAGRAMS

ELECTRODE CABLE

F-10

10-27-2000

S24787-3

TO WIRE FEED UNIT

CONTROL MODULE CONNECTION DIAGRAM

MOVING PARTS can injure

WARNING

ELECTRIC SHOCK can kill

Keep away from moving parts.

Keep guards in place.

Do not operate with panels open.

Disconnect NEGATIVE (-) Battery lead

or service this equipment.

Only qualified personnel should install,use

CABLE PLUG

TO LN-25 INPUT

K626-XX INPUT CABLE ASSEMBLY

TO WORK

before servicing.

Do not touch electrically live parts.

ENGINE WELDERS /LN-25 WITH K624-1 42 VOLT REMOTE OUTPUT

14 PIN

AMPHENOL

COMMANDER 500 CUMMINS

CAUTION:

ANY INCREASE OF THE HIGH IDLE ENGINE RPM BY CHANGING THE GOVERNOR SETTING OR OVERRIDING THE THROTTLE LINKAGE WILL CAUSE

AN INCREASE IN THE AC WIRE FEEDER VOLTAGE, WHICH CAN DAMAGE THE CONTROL CIRCUIT. THE ENGINE GOVERNOR SETTING IS PRE-SET

AT THE FACTORY – DO NOT ADJUST ABOVE RPM SPECIFICATIONS LISTED IN THE ENGINE WELDER OPERATING MANUAL.

N.A. PLACE THE MODE SWITCH IN THE “CV-WIRE” POSITION. PLACE WELDER TERMINALS SWITCH TO “REMOTELY

CONTROLLED” POSITION.

N.B. CONNECT WELDING CABLES TO OUTPUT STUDS FOR DESIRED POLARITY. POSITION THE WIRE FEEDER VOLTMETER SWITCH TO

MATCH THE POLARITY OF THE ELECTRODE CABLE.

N.C. WELDING CABLES MUST BE OF PROPER CAPACITY FOR THE CURRENT AND DUTY CYCLE OF IMMEDIATE AND FUTURE

APPLICATIONS. SEE OPERATING MANUAL.

N.D. PLACE IDLER SWITCH IN “AUTO” OR “HIGH” IDLE POSITION AS DESIRED.

Page 47

F-11 CONNECTION DIAGRAM:

DIAGRAMS

F-11

COMMANDER 500 CUMMINS

Page 48

F-12 CONNECTION DIAGRAM:

DIAGRAMS

F-12

COMMANDER 500 CUMMINS

Page 49

F-13 CONNECTION DIAGRAM:

DIAGRAMS

F-13

COMMANDER 500 CUMMINS

Page 50

F-14

2.24

5.86

DIAGRAMS

F-14

DIMENSION PRINT

3-02

M18962 REF

31.50

45.67

50.15

42.35

N.A.B. CENTER OF GRAVITY WITH OIL IN ENGINE, EMPTY FUEL TANK AND COOLANT IN RADIATOR.

NOTES PER TABLE:

50.81

46.35

42.00

6.55

14.63

37.30

45.38

63.10 6.56

32.08

32.88

TRAILER MOUNTING HOLE LOCATIONS.

24.97

6.53

54.44

50.38

23.69

N.A.B.

16.50

COMMANDER 500 CUMMINS

28.99

1.26 19.63

BOTTOM VIEW OF WELDER BASE.

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 51

NOTES

COMMANDER 500 CUMMINS

Page 52

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 53

● 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 54

• 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 IM765 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual