Lincoln Electric 10912, 10659 Welder Operation, Starting the Classic 300G GM 3.0L Gasoline Engine

B-2 OPERATION B-2

Air Cleaner - Heavy duty two stage dry type.

Muffler-A Muffler and stainless steel exhaust outlet elbow are standard.

Engine Hour Meter - A meter to record hours of oper- ation.

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

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

STARTING THE CLASSIC 300G GM 3.0L GASOLINE ENGINE

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

2.Turn the “IGNITION” switch to “ON”.

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

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

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

WARNING

Under NO conditions should ether or other starting fluids be used!

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STOPPING THE ENGINE

•Turn the “IGNITION” switch to “OFF”

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

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

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

REFER TO THE ENGINE

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

WELDER OPERATION

WARNING

ELECTRIC SHOCK can kill.

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

•Insulate yourself from work and ground.

FUMES & GASES can be dangerous.

• Keep your head out of the fumes.

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

WELDING SPARKS can cause fire or explosion.

• Keep flammable material away.

ARC RAYS can burn.

• Wear eye, ear, and body protection.

DUTY CYCLE

The NEMA output rating of the Classic 300G is 300 amperes at 32 arc volts on a 60% duty cycle (consult Specifications in this manual for alternate ratings). 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.

CLASSIC 300G