Lincoln Electric SVM138-A service manual Routine Maintenance, Periodic Maintenance

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D-2		D-2
		MAINTENANCE
	SAFETY PRECAUTIONS	WIRE REEL MOUNTING - 50 AND 60 LB.
		COILS WITH 1” SPINDLE

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WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this maintenance.

•Turn the input supply power OFF at the disconnect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

To prolong the life of the reel shaft, periodically coat it with a thin layer of grease. No maintenance of the two- position adjustable brake is needed. If the brake shoe wears through to metal, replace the brake assembly.

WIRE REEL MOUNTING - READI-REELS AND 10 THROUGH 44 LB. SPOOLS AND

50AND 60 LB. COILS WITH K1504-1

ADAPTER

No routine maintenance required. Do not lubricate the 2" spindle.

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ROUTINE MAINTENANCE

DRIVE ROLLS AND GUIDE TUBES

After feeding any coil of wire, inspect the drive roll sec- tion. Clean it as necessary. Do not use a solvent for cleaning the idle rolls(s) because it may wash the lubri- cant out of the bearing. The drive roll(s) and guide tubes are stamped with the wire sizes they will feed. If you use a wire size other than that stamped on the rolls, the roll(s) and guide tubes must be changed.

The drive rolls for 0.035 and 0.052 cored electrode and 1/16 through 7/64 electrode have a double set of teeth so they can be reversed for additional life. Drive rolls for 0.023 through 0.052 solid electrodes and aluminum sizes have no teeth, but use two grooves so they also can be reversed for additional life.

See the Operation Section for drive roll installation instructions.

See Table C.2 in the Accessories section for drive roll and guide tube kits.

PERIODIC MAINTENANCE

CONTROL BOX

Every six months open and inspect the control section. The accumulated dirt should be gently blown off all of the electrical components. Be sure the air that is being used is dry. Check the contacts of the large plug-in relay.

A spatter resistant shield protects the digital meter. This shield must always be installed. If it breaks or becomes damaged, replace it by removing the two screws securing its frame, installing a new shield, and reattaching the frame.

WIRE DRIVE MOTOR AND GEAR BOX

Every year examine the gearbox. Paint the gear teeth with molydisulfide-filled grease (Lincoln specification E2322). Do not use a graphite grease.

Check the motor brushes. Replace if they are worn down to 1/4" or less. When ordering feed motor brush- es, give all information from the motor nameplate.

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LN-9 GMA Wire Feeder