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CLEANING THE AIR FILTERS
A dirty air filter will
reduce the compressor's
performance and life. To
avoid any internal
contamination of the pump,
the filters should be
cleaned frequently, and
replaced on a regular
basis. Felt filters (A) should
be cleaned in warm, soapy
water, rinsed, and allowed
to air dry before
reinstallation. Paper filters should be replaced when dirty. Do not allow the
filters to become filled with dirt or paint. If the filter becomes filled with
paint, it should be replaced. Direct exposure to dirty conditions or painting
areas will void your warranty.
Note: Troubleshooting problems may have similar causes and solutions.
PROBLEM
Excessive current draw
trips circuit breaker or
motor reset switch
Compressor stalls
Low discharge pressure
Compressor pump
knocking
Oil in discharge air
Overheating
Excessive belt wear
200-2982
A
TROUBLESHOOTING
POSSIBLE CAUSE
Low voltage/motor overload
Drive belt tension too tight
Restricted air passages
Low voltage to motor
Air leaks
Leaking valves
Restricted air intake
Blown gaskets
Loose motor pulley or pump
flywheel
Low oil level in pump crankcase
Restricted air intake
Oil level too high
Poor ventilation
Dirty cooling surfaces
Restricted air passages
Pulley out of alignment
Improper belt tension
Pulley wobbles
MAINTENANCE
Fig. 5
Perform the following
maintenance at the
intervals indicated
below.
Inspect air filters
(clean or replace as
necessary)
Check pump oil level
Change pump oil
(Use synthetic blend,
non detergent air
compressor oil.)
Check belt tension
Check and tighten
all bolts (do not over
tighten)
SOLUTION
Check that power supply is adequate and that compressor is on a
dedicated circuit.
Readjust belt tension.
Inspect and replace transfer tubes or the check valve.
Furnish adequate power.
Tighten or replace leaking fittings or connections. Do not overtighten.
Contact a qualified service center.
Clean or replace air filter element(s).
Contact a qualified service center.
Retighten pulley and flywheel. Check alignment.
Keep oil at proper level at all times.
Clean or replace the air filter element(s).
Reduce to proper level.
Relocate compressor to an area with cool, dry, well circulated air, at
least 12 in. from nearest wall.
Clean all cooling surfaces thoroughly.
Inspect and replace transfer tubes or the check valve.
Realign pulley with compressor flywheel.
Readjust.
Replace the pulley and check for a damaged crankshaft or flywheel.
SERVICE INTERVAL
Daily or
Every 100
after each
operating
use
hours
•
•
•
•
After first 8
hours and
then every
100 operating
hours
•
5
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