Lincoln Electric SVM134-A service manual After cleaning or when installing a new spark plug

		D-5			D-5
			MAINTENANCE
TOC	TOC		FAN BELT: Fan belts tend to loosen after the first 50	SPARK PLUGS: Clean or replace the spark plugs
Section	Master		hours of operation. If the fan belt is loose, the engine	after every 250 hours of operation as follows.
			can overheat and the battery can lose its charge.	1. Before removing the plugs, clean the base area to
			Check belt tightness by pressing on the belt midway
				keep dirt from falling into the engine through the
to	to		between the pulleys. The belt should deflect no more
				plug hole.
			than 13 mm (0.5 in.). See Figure D.3.
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			To adjust the fan belt, loosen the alternator bolts, then	2. Remove and inspect the plugs.	Plugs showing
				signs of fouling or electrode	wear should be
			push the alternator outward until the correct belt ten-
				replaced. Do not blast the spark plugs clean with
			sion is achieved. Retighten the alternator bolts. See
				an abrasive cleaning device. Clean the plugs by
			Figure D.3.
				scraping or by using a wire brush. Wash the plugs
			FIGURE D.3 – TIGHTENING THE FAN BELT
				with a commercial solvent.

											3. After cleaning or when installing a new spark plug,
											set the terminal gap with a feeler gauge or gapping
TOC	TOC										tool. See Figure D.4.
											Gap Specifications: 0.032 inch (.8 mm).
Section	Master										4. Tighten plugs to 30 ft-lbs (40 N·m).
		1	2	3	4		6	7	8	9	FIGURE D.4 – SET SPARK PLUG GAP
						5
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	CLASSIC I