Lincoln Electric SP-100 Items Requiring no Maintenance, Routine and Periodic Maintenance

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D-1	MAINTENANCE
	SAFETY PRECAUTIONS	AFTER EACH SPOOL OF WIRE
		FEED
	WARNING
		• Remove contact tip and clean inside diam-
	ELECTRIC SHOCK can	eter with short piece of wire
	kill.	• Clean cable liner – when rough and erratic
	• Disconnect input power	wire feeding occur.
	by removing plug from
	receptacle before work-	AFTER FEEDING 50# OF FLUX
	ing inside SP-100.Use	CORED WIRE OR 300# OF SOLID
	only grounded recepta-	WIRE
	cle. Do not touch electri-	• Unplug machine or turn power switch to
	cally “hot” parts inside
	SP-1 00.	OFF – “O” position. Remove gun and
		cable from machine.
	• Have qualified person-	• Remove gas nozzle and contact tip from
	nel do the maintenance
		gun
	and trouble shooting
		• Lay cable out straight - blow out gently
	work.
		with compressed air. Bend cable back and

forth – blow out again – Repeat until clean.

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ITEMS REQUIRING NO MAINTENANCE

•Drive Motor and Gearbox – Lifetime lubrication

•Fan Motor- Lifetime lubrication.

•Wire Reel Spindle – Do NOT lubricate shaft.

ROUTINE AND PERIODIC MAINTENANCE

BEFORE EACH USE

•Check over machine and accessories for any obvious condition that may prevent safe performance or operation, repair or replace items as necessary to correct any abnormal condition.

AFTER 5 MINUTES OF WELDING or when spatter accumulates in nozzle

•Clean nozzle to avoid bridging between nozzle and contact tip which results in shorted nozzle, poor welds and overheat- ed gun. Hint: Anti-stick spray or gel avail- able from a welding supply distributor may reduce buildup and aid in spatter removal.

CAUTION

Excessive pressure at start may cause the dirt to form a plug.

PERIODICALLY AS REQUIRED

•Unplug machine or turn power switch to OFF – “O” position.

•Blow dirt out of the welder with low pres- sure air to eliminate excessive dirt and dust buildup that could cause welder to run hot.

•Blow dirt out of: Rectifier & Fan Motor Assembly; PC Board located on Case Side Assembly; and Center Assembly components. Refer to Figure D.4.

•Vacuum accumulated dirt from gear- box and wire feed section. Refer to

Figure D.4

•Inspect the incoming guide tube and clean inside diameter if necessary. Replace when excessively worn.

•Replace Contact Tip – when hole is enlarged or elongated (refer to Changing Contact Tip, below).

SP-100