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CLEANING THE AIR FILTER
A dirty air filter will
reduce the compressor's
performance and life. To
avoid any internal
contamination of the pump,
the filter should be cleaned
frequently, and replaced on
a regular basis. Paper
filters should be replaced
when dirty. Do not allow
the filter 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
200-2994
A = Wing nut
B = Metal cover
C = Filter element
A
B
C
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
Perform the following
maintenance at the
intervals indicated
below.
Inspect air filter
(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.
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.
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
•
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