Sears 919.17632, 919.17633, 919.17621, 311 Loose pulley, Check all belts and tighten as required

.... _ wx vv_l_

PROBLEMCAUSE

ii

	Air Leaks	(Cont'd)		Leak at welds.
				Air leak in safety valve.
	Restricted	Air	Intake	Dirty air filter.
lln i	,,_				,mini	,..i.,	pill	il II
	Squealing	Souncl		Belt too loose.
				No oil in compressor,
		ii i	i ,,	ii
Low Discharge			Pressure	Prolonged excess v,. use of air.
					tit		it,l	ilillli
				Restricted	air intake filter.
				Belt too loose.
				Hole in hose.
				Ill	",1111111111
iKnocking				Loose pulley.
				Low oil level.
				Flywheel loose.
				Compressor bolts loose.
				Loose belt.
				Carbon build up.
			iiiiiiii
Excessive		Belt Wear		Belt too loose.

Belt too tight.

Pulley wobble.

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CORRECTION

DO NOT DRILL IKT_. WELD OF. OTHERWISE MO,:::)I_='_AIR. TANI'. OF

TANK WILL BE WEAK=-.NED, TANK MUST 5-- RF.PLA3_E:.

Operate safety valve manually by pulling on ring. If valve still leaks, itshould be replaced.

Clean or replace with new.

,,.,, iiiii iii iiiii __

"lighten wing nut on motor mount.

Add oil to top of fill hole in base.

,i i ii

Decrease amount of air usage, compressor is not large enough for air requirement. See specification chart, page 5.

Clean or replace air intake filter.

Tighten wing nut on motor mount.

Check and replace if required.

Tighten pulley sat screw.

Check oil level and maintain at prescribed level,

Make sure flywheel is tight by tightening screw.

Check all belts and tighten as required.

Adjust wing nut on motor mount,

Remove head and valve plate, Clean top of piston and bottom of valve plate. Reassem- ble using new gasket and torque screws to 25-30 ft.-tbs,

,,,ll,lllll

Adjust tension using wing nut on motor mount.

Adjust tension using wing nut on motor mount.

Check for worn keyway or pulley bore result- ing from running the compressor with loose pulleys. Also check for bent motor shaft.

15