Sears 919.17632 - Manual (Page 15)

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PROBLEM CAUSE
Air Le^s (Cont'd) Leak at welds.
Air leak in safety valve.
CORRECTION
V/ARNING
DO NOT DRILL INTO. WELD OR
OTHERWISE MODFV AIR TANIC OP
TANK V/ILL BE WEAKENED. TANK
MUST BE REPLACED.
Operate safety valve manually pulling on
ring. If valve still leaks, it siKHJid be replaced.
Restricted Air Intake Dirty air filler. Clean or replace with new.
Squealing Sound Belt too loose.
No oil in compressor.
Tightei wing nut on motor mount.
Add oil to top of fill hole in base.
Low Discharge Pressure Prolonged excessive use of air.
Restricted air Intake filter.
Belt too loose.
Hole in hose.
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.
I Knocking
Excessive Belt Wear
Loose pulley.
Low oil level.
Flywheel loose.
Compressor bolts loose.
Loose belt.
Carbon build up.
Belt too loose.
Belt too tight. Adjust tension using wing nut on motor
mount.
Pulley wobble.
Check for worn keyway or pulley bore resuli-
ing from running the compressor with loose
pulley. Also check for bent motor shaft.
Tighten puH^ set screw.
Check oil level and m«ntain at prescribed
level.
Make sure flywheel is tight by tightening
screw-
Check all bolts 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 torque screws to
26-30 ft.-lbs.
Adjust tension using wing nut on motor
mount.
15