i

SAFETY

i

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

The Above For Diesel Engines

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

The Above For Gasoline Engines

FOR ENGINE powered equipment.

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

____________________________________________________

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

____________________________________________________

1.c. Do not add the fuel near an open flame welding arc or when the engine is running.

Stop the engine and allow it to cool before refueling to prevent spilled fuel from vaporizing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated.

____________________________________________________

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

____________________________________________________

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.

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

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 vapors coming from degreasing, cleaning or spraying operations.

The heat and rays of the arc can react with solvent vapors to form phosgene, a highly toxic gas, and other irritating products.

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

5.d. Read and understand the manufacturer???s instructions for this equipment and the consumables to be used, including the material safety data sheet (MSDS) and follow your employer???s safety practices. MSDS forms are available from your welding distributor or from the manufacturer.

5.e. Also see item 1.b.

Mar ???95

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.

Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas. Avoid welding near hydraulic lines. Have a fire extinguisher readily available.

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 though they have been ???cleaned???. For information, purchase ???Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous

Substances???, AWS F4.1 from the American Welding Society

(see address above).

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

6.f. Sparks and spatter are thrown from the welding arc. Wear oil free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes and a cap over your hair. Wear ear plugs when welding out of position or in confined places. Always wear safety glasses with side shields when in a welding area.

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.

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

iv

SAFETY

iv

PR??CAUTIONS DE S??RET??

Pour votre propre protection lire et observer toutes les instructions et les pr??cautions de s??ret?? specifiques qui parraissent dans ce manuel aussi bien que les pr??cautions de s??ret?? g??n??rales suivantes:

S??ret?? Pour Soudage A L???Arc

1.Protegez-vous contre la secousse ??lectrique:

a.Les circuits ?? l?????lectrode et ?? la pi??ce sont sous tension quand la machine ?? souder est en marche. Eviter toujours tout contact entre les parties sous tension et la peau nue ou les v??tements mouill??s. Porter des gants secs et sans trous pour isoler les mains.

b.Faire tr??s 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 couch?? pour lesquelles une grande partie du corps peut ??tre en contact avec la masse.

c.Maintenir le porte-??lectrode, la pince de masse, le c??ble de soudage et la machine ?? souder en bon et s??r ??tat defonctionnement.

d.Ne jamais plonger le porte-??lectrode dans l???eau pour le refroidir.

e.Ne jamais toucher simultan??ment les parties sous tension des porte-??lectrodes connect??s ?? deux machines ?? souder parce que la tension entre les deux pinces peut ??tre le total de la tension ?? vide des deux machines.

f.Si on utilise la machine ?? souder comme une source de courant pour soudage semi-automatique, ces precautions pour le porte-??lectrode s???applicuent aussi au pistolet de soudage.

2.Dans le cas de travail au dessus du niveau du sol, se prot??ger contre les chutes dans le cas ou on recoit un choc. Ne jamais enrouler le c??ble-??lectrode autour de n???importe quelle partie du corps.

3.Un coup d???arc peut ??tre plus s??v??re qu???un coup de soliel, donc:

a.Utiliser un bon masque avec un verre filtrant appropri??

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

b.Porter des v??tements convenables afin de prot??ger la peau de soudeur et des aides contre le rayonnement de l???arc.

c.Prot??ger l???autre personnel travaillant ?? proximit?? au

soudage ?? l???aide d?????crans appropri??s et non-inflammables.

4.Des gouttes de laitier en fusion sont ??mises de l???arc de soudage. Se prot??ger avec des v??tements de protection libres de l???huile, tels que les gants en cuir, chemise ??paisse, pantalons sans revers, et chaussures montantes.

5.Toujours porter des lunettes de s??curit?? dans la zone de soudage. Utiliser des lunettes avec ??crans lateraux dans les

zones o?? l???on pique le laitier.

6.Eloigner les mat??riaux inflammables ou les recouvrir afin de pr??venir tout risque d???incendie d?? aux ??tincelles.

7.Quand on ne soude pas, poser la pince ?? une endroit isol?? de la masse. Un court-circuit accidental peut provoquer un ??chauffement et un risque d???incendie.

8.S???assurer que la masse est connect??e le plus pr??s 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 ??loign??s de la zone de travail, on augmente le risque de voir passer le courant de soudage par les chaines de levage, c??bles de grue, ou autres circuits. Cela peut provoquer des risques d???incendie ou d???echauffement des chaines et des c??bles jusqu????? ce qu???ils se rompent.

9.Assurer une ventilation suffisante dans la zone de soudage.

Ceci est particuli??rement important pour le soudage de t??les galvanis??es plomb??es, ou cadmi??es ou tout autre m??tal qui produit des fume??s toxiques.

10.Ne pas souder en pr??sence de vapeurs de chlore provenant d???op??rations de d??graissage, nettoyage ou pistolage. La chaleur ou les rayons de l???arc peuvent r??agir avec les vapeurs du solvant pour produire du phosg??ne (gas fortement toxique) ou autres produits irritants.

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

PR??CAUTIONS DE S??RET?? POUR

LES MACHINES ?? SOUDER ??

TRANSFORMATEUR ET ??

REDRESSEUR

1.Relier ?? la terre le chassis du poste conformement au code de l?????lectricit?? et aux recommendations du fabricant. Le dispositif de montage ou la piece ?? souder doit ??tre branch?? ?? une bonne mise ?? la terre.

2.Autant que possible, I???installation et l???entretien du poste seront effectu??s par un ??lectricien qualifi??.

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

4.Garder tous les couvercles et dispositifs de s??ret?? ?? leur place.

Mar. ???93

v

Thank You

v

for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product

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

GENERAL DESCRIPTION

The 350-SA is a heavy duty engine-driven DC arc welding power source capable of providing constant current output for stick welding or DC TIG welding. With the addition of the optional Wire Feed Module for K1314-4, the 350-SA will provide constant voltage output for running the LN-25, LN-23P or LN-7 wire feeders. The Wire Feed Module is factory-installed on the K1314-5 350-SA.

The output rating of the 350-SA is 350 amperes at 34* arc volts at 25% duty cycle. Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for 2.5 minutes out of every ten minute period.

* The output rating at 60% duty cycle is 250 amps at 40V.

DESIGN SUMMARY

Control Panel

Both the engine and the welder controls are located on one recessed panel at the exciter end of the machine. The welder controls consist of a five step ???Current Range Selector??? switch and a ???Fine Current Adjustment??? rheostat. Each welder is equipped with a ???Start??? button and an ???Idler Control??? switch. The Perkins diesel uses a ???Thermostart??? button, and has a ???Stop??? control.

On this panel is also mounted an engine temperature gauge, a battery charging ammeter, an oil pressure gauge, and the three prong grounded type auxiliary power receptacle.

Copper Shunt Windings

For long life and dependable operation.

Engine Idler

The 350-SA is equipped with an electric automatic engine idler. It automatically increases and decreases engine speed when starting and stopping welder or using auxiliary power. A built-in time delay permits changing electrodes before the engine slows to its low idle speed. The ???Idler Control Switch??? on the panel locks the idler in full speed position when desired.

Auxiliary Power

3.0 kVA of nominal 115/230V, 60 Hz, AC1. (See Optional Features for Power Plug Kits).

(1)Output voltage is within ?? 10% at all loads up to rated capacity.

Welder Enclosures

The complete welder is rubber mounted on a rugged steel base.

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

Remote Control

K924-1 (for K1314-4, -5 only) - (Field Installed). Provides a receptacle switch and remote control box with 100 ft cord for fine current and OCV adjustment at the welding site.

Cranking System

A 12 volt electric starter is standard.

Air Cleaner

Heavy duty two stage dry type.

Muffler

A muffler to reduce engine noise is standard on the diesel engine units.

Engine Hour Meter

A meter to record the hours of operation.

Diesel Engine Protection

The system shuts the engine down in the event of sudden low oil pressure or high coolant temperature.

Accessory Set (K703)

Includes electrode and work cables, headshield, work clamp, and electrode holder.

Ether Start Kit (K793) for Perkins Engine

When frequent starting is expected below -12??C, (10??F) remove the ???thermostart??? system and install the optional ether start kit to provide maximum cold weather starting assistance. Ether starting should only be used as required since indiscriminate application will contribute to shortened engine life.

(Available for field installation only).

Hi-Freq??? (K799)

Provides high frequency plus gas valve for DC TIG welding. (Request Publication E385).

Optional field installed water valve kit available. Order

K844.

???A power plug kit for the auxiliary power receptacles is available. (Provides a plug for each receptacle).

Trailer (K769)

Two-wheeled trailer for in-plant and yard towing only. (For highway use, consult applicable federal, state, and local laws regarding possible requirements for brakes, lights, fenders, etc.)

Trailer (K913)

Two-wheeled highway trailer with steel, torsion-bar axle, 54??? (137cm) wheel track. Low sway, low center- of-gravity. Sturdy tread plate platform. Choice of 3 hitches. Add on fender & light package. For highway use, consult applicable local laws regarding possible additional requirements.

Order: K913-1 Base Trailer

K913-2 Ball Hitch

K913-3 Lunette Eye Hitch

K913-4 Clevis Pin Hitch

K913-5 Fender & Light Kit

Linc-Thaw??? (L2964-5) Control Unit

Includes meter and fuses to protect welder when thawing frozen water pipes.

WARNING

Pipe Thawing IS NOT a CSA approved procedure. If not done properly, it can result in fire, explosion, damage to wiring which may make it unsafe, damage to pipes, burning up the welder, or other hazards.

Do not use a welder to thaw pipe before reviewing Lincoln Bulletin E695.1 (dated October 1987 or later.)

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Mufflers

Mufflers are standard on the 350-SA Perkins.

Wire Feed Module (K623-1)

The Wire Feed Module is field-installed on the K1314-4 and factory-installed on the K1314-5 to provide CV (constant voltage) output for semiautomatic welding. Output rated at 250 Amps at 35 Volts with a 60% Duty Cycle and 310 Amps at 32 Volts with a 35% Duty Cycle.

DIMENSIONS

See dimension Print M8869-24 at the rear of this manual.

PRE-OPERATION INSTALLATION

Safety Precautions

WARNING

Do not attempt to use this equipment until you have thoroughly read the engine manufacturer???s manual supplied with your welder. It includes important safety precautions, detailed engine starting, operating and maintenance instructions, and parts lists.

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ELECTRIC SHOCK can kill.

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

???Insulate yourself from work and ground

???Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

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MOVING PARTS can injure.

??? Do not operate with doors open or guards off.

??? Stop engine before servicing.

??? Keep away from moving parts.

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

See additional warning information at

front of this operator???s manual.

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Exhaust Spark Arrester

Some federal, state or local laws may require that diesel engines be equipped with exhaust spark arresters when they are operated in certain locations where unarrested sparks may present a fire hazard. The standard mufflers included with these welders do not qualify as a spark arrester. When required by local regulations, suitable spark arresters must be installed and properly maintained.

Machine Grounding

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

Some state, local or other codes or unusual operating circumstances may require the machine frame to be grounded. It is recommended that you determine the extent to which such requirements may apply to your particular situation and follow them explicitly. A machine grounding stud marked with the symbol is provided on the welding generator frame foot. (If an older portable welder does not have a grounding stud, connect the ground wire to an unpainted frame screw or bolt.

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 metal water pipe going into the ground for at least ten feet and having no insulated joints, or to the metal framework of a building which has been effectively grounded. The U.S. National Electrical Code lists a number of alternate means of grounding electrical equipment.

Lift Bail

A lift bail is provided for lifting with a hoist.

WARNING

FALLING EQUIPMENT can cause

injury.

??? Do not lift this machine using lift bail 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.

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

CAUTION

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

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Location / Ventilation

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

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

Trailers (See Optional Features)

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

1.Design capacity of trailer vs. weight of Lincoln equipment and likely additional attachments.

2.Proper support of, and attachment to, the base of the welding equipment so there will be no undue stress to the framework.

PRE-OPERATION SERVICE

CAUTION

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

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WARNING

Fuel can cause fire or explosion.

-

??? Stop engine while fueling.

???Do not smoke when fueling.

???Do not overfill tank.

???Keep sparks and flame away from tank.

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

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Oil

This unit is supplied from the factory with the engine crankcase filled with a high quality 10W30 oil. This oil should be acceptable for most typical ambient temperatures. Consult the engine operation manual for specific engine manufacturer???s recommendations. Upon receipt of the welder, check the engine dipstick to be sure the oil is at the ???full??? mark. DO NOT

OVERFILL.

Fuel

Fill the fuel tank with the grade of fuel recommended in the Engine Operator???s Manual. Make sure the fuel valve on the sediment bowl is in the open position.

Cooling System

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

Battery Charging

WARNING

GASES FROM BATTERY can explode.

??? Keep sparks, flame and cigarettes away.

BATTERY ACID can burn eyes and skin.

??? Wear gloves and eye protection and

be careful when boosting, charging or working near battery.

To prevent EXPLOSION when:

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

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

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

To prevent ELECTRICAL DAMAGE when:

a)Installing a new battery.

b)Using a booster.

Use correct polarity - Negative Ground.

To prevent BATTERY DISCHARGE, if you have an ignition switch, turn it off when engine is not running.

??? To prevent BATTERY BUCKLING, tighten nuts on

battery clamp until snug.

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

The 350-SA is equipped with a wet charged battery. The charging current is automatically regulated when the battery is low (after starting the engine) to a trickle current when the battery is fully charged.

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

ENGINE OPERATION

WARNING

Do not attempt to use this equipment until you have thoroughly read the engine manufacturer???s manual supplied with your welder. It includes important safety precautions, detailed engine starting, operating and maintenance instructions, and parts lists.

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

ELECTRIC SHOCK can kill.

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

???Insulate yourself from work and ground

???Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

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

MOVING PARTS can injure.

??? Do not operate with doors open or guards off.

??? Stop engine before servicing.

??? Keep away from moving parts.

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

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

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

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

Starting the Perkins D3.152 Engine

a)Turn the idler control to ???HIGH???.

b)Turn the ignition control to ???ON???.

c)Push in the ???RESET??? button.

d)Press the ???START??? button. Release button when engine starts.

e)If the engine fails to start in 60 seconds, wait 30 seconds before repeating the above procedure.

f)Allow the engine to run at high idle speed for several minutes to warm up. Cold engines tend to run at a speed too slow to supply the voltage required for proper idler operation.

Cold Weather Starting -- When overnight temperatures are between -12??C (10??F) and freezing, use the standard ???Thermostart??? starting system installed on all engines. Follow the instructions on the nameplate and in the engine manual shipped with the welder. With fully charged batteries and the proper weight oil, the ???Thermostart??? system operates satisfactorily even down to about -18??C (0??F).

If the engine must be frequently started below -12??C (10??F), it may be desirable to remove the ???Thermostart??? and install the optional ether starter kit. Installation and operating instructions are included in the kit. Use ether starting only when required because excessive use shortens engine life.

Stopping the Perkins D3.152 Engine

a) Turn the ignition control to ???OFF???.

At the end of each day???s welding, refill the fuel tank to minimize moisture condensation in the tank. Also, running out of fuel tends to draw dirt into the fuel system.

Check the crankcase oil and radiator water level.

WELDER OPERATION

WARNING

ELECTRIC SHOCK can kill.

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

???Insulate yourself from work and ground.

FUMES & GASES can be dangerous.

??? Keep your head out of the fumes.

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

WELDING SPARKS can cause fire or explosion.

??? Keep flammable material away.

ARC RAYS can burn.

??? Wear eye, ear, and body protection.

Duty Cycle

The NEMA output rating of the 350-SA is 250 amperes at 30(1) arc volts on a 60% duty cycle. Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for six minutes out of every ten minute period.

(1)The Lincoln ???plus output??? rating at 60% duty cycle is 250 amperes at 40 volts.

Control of Welding Current

CAUTION

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

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

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

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

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

CAUTION

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

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

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

Idler Operation

Start the engine with the ???Idler Control??? switch in ???High Idle??? position. Allow it to run at high idle speed for several minutes to warm the engine. The operating speeds are as follows:

The idler is controlled by an ???Idler Control??? toggle switch on the welder control panel. The switch has two positions as follows:

1.In the ???High??? position, the idler is off, and the engine runs at the high speed controlled by the governor.

a.When welding or drawing power for lights or tools (approximately 100-150 watts minimum) from the receptacles, the engine operates at full speed.

b.When welding ceases or the power load is turned off, a preset time delay of about 15 seconds starts. This time delay cannot be adjusted.

c.If the welding or power load is not re-started before the end of the time delay, the idler reduces the engine to low idle speed.

Auxiliary Power

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

With the 3.0 kVA, 115/230V AC auxiliary power, one duplex 115V grounding type receptacle (NEMA configuration 5-15R) is provided. For the 230V AC power, one grounding type duplex receptacle is provided (NEMA configuration 6-15R). The circuit is protected with circuit breakers.

The rating of 3.0 kVA permits a maximum continuous current of 13 amps to be drawn from the 230 volt duplex receptacle. Or a total of 26 amps can be drawn from the 115 volt duplex receptacle. The 115 volt duplex receptacle has a configuration which permits 15 amps to be drawn from either half. Therefore, on this machine, up to 15 amps continuous can be drawn from one half and the balance of 11 amps from the other half. The total combined load of all receptacles is not to exceed 3.0 kVA.

An optional power plug kit is available. When this kit is specified, the customer is supplied with a plug for each receptacle. In this case, he will receive two 15 amp, 115 volt plugs (NEMA configuration 5-15P) and two 15 amp, 230 volt plugs (NEMA configuration 6-15P).

MAINTENANCE

WARNING

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

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

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

ELECTRIC SHOCK can kill.

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

???Insulate yourself from work and ground

???Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

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

MOVING PARTS can injure.

??? Do not operate with doors open or guards off.

??? Stop engine before servicing.

??? Keep away from moving parts.

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

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

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

General Instructions for Diesel Engine Welders

1.Blow out the welder and controls with an air hose at least once every two months. In particularly dirty locations, this cleaning may be necessary once a week. Use low pressure air to avoid driving dirt into the insulation.

2.???Current Range Selector??? contacts should not be greased. To keep the contacts clean, rotate the current control through its entire range frequently. Good practice is to turn the handle from maximum to minimum setting twice each morning before starting to weld.

3.Change the crankcase oil at regular intervals using the proper grade of oil as recommended in the engine operating manual.

4.Change the oil filter in accordance with the instructions in the engine operator???s manual. When the filter is changed, add a quart of oil to the crankcase to replace the oil held in the filter during operation.

5.Inspect the air filter daily - more often in dusty conditions. When necessary, clean or replace. The filter should never be removed while the engine is running.

6.Change the diesel fuel filters every 500 hours of operation.

7.Fan belts tend to loosen after the first 30 or 40 hours of operation. Check and tighten if necessary. DO NOT OVERTIGHTEN.

8.Put a drop of oil on the ???Current Range Selector??? shaft at least once every month.

9.See the engine manufacturer???s Operating Manual for detailed engine maintenance and troubleshooting instructions.

Cooling System

The 350-SA is equipped with a pressure radiator. Keep the radiator cap tight to prevent loss of coolant. Clean and flush the cooling system periodically to prevent clogging the passage and overheating the engine. When antifreeze is needed, always use the permanent type.

Bearings

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

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

Commutator & Brushes

WARNING

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

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

The generator brushes are properly adjusted when the welder is shipped. They require no particular attention. DO NOT SHIFT THE BRUSHES or adjust the rocker setting.

Periodically inspect the commutator, slip rings and brushes by removing the covers. DO NOT remove or replace these covers while the machine is running.

Commutators and slip rings require little attention. However, if they are black or appear uneven, have them cleaned by an experienced maintenance man using fine sandpaper or a commutator stone. Never use emery cloth or paper for this purpose.

Note: If the welder is used in dirty or dusty locations, or if the welder is not used for prolonged periods of time, it may be necessary to clean the commutator and slip rings more often.

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

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

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

Idler Maintenance

CAUTION

Before doing electrical work on the idler printed circuit board, disconnect the battery.

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

1.The solenoid plunger must work freely because binding can cause engine surging. If surging occurs, be sure the plunger is properly lined up with the throttle lever. Dust the plunger about once a year with graphite powder.

2.When any service is done, reassemble the rubber bellows on the solenoid plunger with the vent hole on the lower side.

3.Proper operation of the idler requires good grounding of the printed circuit board (through its mounting), reed switch and battery.

4.If desired, the welder can be used without automatic idling by setting the ???Idler Control??? switch to the ???High Idle??? position.

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

Nameplates

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

TROUBLESHOOTING

WARNING

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

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

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

ELECTRIC SHOCK can kill.

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

???Insulate yourself from work and ground

???Always wear dry insulating gloves.

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

ENGINE EXHAUST can kill.

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

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

MOVING PARTS can injure.

??? Do not operate with doors open or guards off.

??? Stop engine before servicing.

??? Keep away from moving parts.

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

See additional warning information at front of this operator???s manual

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

??? 21 ???

350-SA WIRING DIAGRAM

71.1

(28.00)

55.9 #

(22.00)

57.2 *

(22.50)

62.2

(24.50)

68.9

(27.12)

DIMENSION PRINT

134.5

(52.94)

80.7

(31.75)

53.1

(20.91)

15.2

(6.00)

* 1.5(.59) X 2.8(1.10) SLOTS

# 1.8(.69) DIA. HOLES

MEASUREMENTS ARE IN CM .(IN.)

42.0

(16.53)

20.6

(8.12)

7.6

(3.00)

2.2

(.88)

M8869-24

7-27-90C

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The book contains the latest information and application data on the American Welding Society Standard Welding Symbols. Detailed discussion tells how engineers and draftsmen use the ???short-cut??? language of symbols to pass on assembly and welding information to shop personnel.

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Need Welding Training?

The Lincoln Electric Company operates the oldest and most respected Arc Welding School in the United States at its corporate headquarters in Cleveland, Ohio. Over 100,000 students have graduated. Tuition is low and the training is ???hands on???

and ask for bulletin ED-80 or call 216-383-2259 and ask for the Welding School Registrar.

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5 weeks of fundamentals

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BOOKS OR FREE INFORMATIVE CATALOGS

Telephone: 216-383-2211 or, for fastest service, FAX this completed form to: 216-361-5901.

STATEMENT OF LIMITED WARRANTY

The Lincoln Electric Company (Lincoln) warrants to the end user (purchaser) of all new welding and cutting equipment, electrode and flux (collectively called the ???Goods???) that it will be free of defects in workmanship and material.

This warranty is void if Lincoln or its Authorized Service Facility finds that the equipment has been subjected to improper installation, improper care or abnormal operations.

WARRANTY PERIOD (1) (2) (3)

Lincoln will assume both the parts and labor expense of correcting defects during the full warranty period. All warranty periods date from the date of purchase to the original end user and are as follows:

7 Years

???Main power rectifiers on all non-inverter low frequency (50 and 60 Hz) type welders.

3 Years

???All Lincoln welding machines, wirefeeders and plasma cutting machines unless listed below.

2 Years

???Power Arc 4000, Power Arc 5000 Ranger 10, Ranger 10-LX Weldanpower 125, Weldanpower 150

1 Year

???AC-100

Invertec V100-S, Invertec V130-S, Invertec V200-T Pro-Cut 20

???All water coolers (internal or external models)

???All stick electrode, welding wire and flux.

???Arc welding and cutting robots and robotic controllers

???All Environmental Systems equipment, including portable units, central units, gun and cable assemblies and accessories. (Does not include consumable items listed under 30 day warranty.)

???All welding and cutting accessories including gun and cable assemblies, TIG and plasma torches, spool guns, wire feed modules, undercarriages, field installed options that are sold separately, unattached options, welding supplies, standard accessory sets, replacement parts, and Magnum products. (Does not include expendable parts listed under 30 day warranty)

30 Days

???All consumable items that may be used with the environmental systems described above. This includes hoses, filters, belts and hose adapters.

???Expendable Parts - Lincoln is not responsible for the replacement of any expendable part that is required due to normal wear.

CONDITIONS OF WARRANTY

TO OBTAIN WARRANTY COVERAGE:

The purchaser must contact Lincoln or Lincoln???s Authorized Service Facility about any defect claimed under Lincoln???s warranty.

Determination of warranty on welding and cutting equipment will be made by Lincoln or Lincoln???s Authorized Service Facility.

WARRANTY REPAIR:

If Lincoln or Lincoln???s Authorized Service Facility confirms the existence of a defect covered by this warranty, the defect will be corrected by repair or replacement at Lincoln???s option.

At Lincoln???s request, the purchaser must return, to Lincoln or its Authorized Service Facility, any ???Goods??? claimed defective under Lincoln???s warranty.

FREIGHT COSTS:

The purchaser is responsible for shipment to and from the Lincoln Authorized Service Facility.

WARRANTY LIMITATIONS

Lincoln will not accept responsibility or liability for repairs made outside of a Lincoln Authorized Service Facility.

Lincoln???s liability under this warranty shall not exceed the cost of correcting the defect of the Lincoln product.

Lincoln will not be liable for incidental or consequential damages (such as loss of business, etc.) caused by the defect or the time involved to correct the defect.

This written warranty is the only express warranty provided by Lincoln with respect to its products. Warranties implied by law such as the warranty of merchantability are limited to the duration of this limited warranty for the equipment involved.

This warranty gives the purchaser specific legal rights. The purchaser may also have other rights which vary from state to state.

(1)Equipment manufactured for the Lincoln Electric Company is subject to the warranty period of the original manufacturer.

(2)All engines and engine accessories are warranted by the engine or engine accessory manufacturer and are not covered by this warranty.

(3)SAE400 WELD N??? AIR compressor is warranted by the compressor manufacturer and not covered by this warranty.