Idler Control Maintenance, Nameplates | Lincoln Electric 10912

D-2	MAINTENANCE	D-2

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

To seat slip ring brushes, position the brushes in place. Then slide one end of a piece of fine sandpaper between slip rings and brushes with the coarse side against the brushes. With slight additional finger pres- sure 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 CONTROL MAINTENANCE

CAUTION

Before doing electrical work, disconnect the bat- tery.

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

•Proper operation of the idle control requires good grounding of the TBI controller, and battery.

•If desired, the welder can be used without automatic idling by setting the “Idler” switch to the “High” position.

NAMEPLATES

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

PURGING AIR FROM FUEL SYSTEM ( GM 3.0L ENGINE)

WARNING

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

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

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

ENGINE MAINTENANCE

Refer to the engine operation and maintenance man- ual for additional information on the engine.

CLASSIC 300G

IM659-B, 11135, 10659, 10912 specifications

Lincoln Electric is a prominent name in the welding and cutting industry, recognized for its commitment to innovation and high-quality products. Among its extensive product lineup, models such as Lincoln Electric 10912, 10659, 11135, and IM659-B stand out for their advanced features, reliable performance, and versatility.

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In conclusion, Lincoln Electric's 10912, 10659, 11135, and IM659-B models exemplify the company's dedication to quality and innovation. Each model incorporates unique features and technologies that cater to specific welding needs, ensuring that professionals and hobbyists alike can find the perfect machine for their projects. With Lincoln Electric, users can expect reliable performance and impressive results, making it a top choice in the welding market.