Use and Care Manual
CA / CT SERIES CAP600
Page 28 of 30 REV E JULY 2014
Problem
Cause
Remedy
7
Low discharge
pressure
Manual drain not fully closed
(standard model)
Automatic drain not fully closed (if
applicable)
Clogged air filter / intake
Leaks in air distribution system
Clogged air distribution system
Worn out pressure switch
Belt slipping
Worn piston rings
Worn head gasket
Worn valves
Close the drain cock
Clean or replace automatic drain
Replace the filter
Check fittings, bushings and
connections for leaks
Clean air distribution system
Replace pressure switch
See 6
Replace with ring kit
Replace with gasket kit
Replace with valve kit
8
Excessive belt
wear
Belt too tight or too loose
Incorrect belt
Exposure to abrasive dust
Working pressure too high
Worn or misaligned pulley
Adjust belt tension
Use correct belt
Eliminate dust or relocate unit
Lower working pressure
Replace or realign pulley
9
Lubricant appears
milky
Water in the crankcase
Incorrect oil
Water contaminated oil
Water leaking back through
discharge valve
Compressor not running long enough to
prevent condensation
Use correct oil
Replace oil
Re-pipe with drip legs and pitch piping
away from the compressor
10
Excessive oil in
compressed air
Oil level too high
Incorrect oil
Piston ring not fully seated
Worn piston ring
Bleed excess oil
Use correct oil
Allow 100 hours to break in rings
Replace with ring kit
11
Motor overloads
Working pressure too high
Incorrect voltage
Lower working pressure
Contact distributor
If your problem is not resolved after performing troubleshooting, or not listed above, please
contact your local distributor for more assistance.