Jet JCP-601 Operating Instructions And Parts Manual page 15

TROUBLESHOOTING GUIDE (CONTINUED)
SYMPTOM
Reset mechanism cuts out
repeatedly or fuses blow
repeatedly
Tank does not hold pressure
when compressors off and the
shut off valve is closed
Pressure switch continuously
blows air out the unloader valve
Pressure switch does not release
air when the unit shuts off
Excessive vibration
POSSIBLE CAUSE(S)
1. Too many devices on same circuit
2. Incorrect fuse size or circuit breaker
3. Malfunctioning check valve
4. Pressure switch set too high
5. Loose wiring
6. Malfunctioning motor
1. Worn check valve
2. Check all connections and fittings for
leaks
3. Check tank for cracks or pin holes
1. Malfunctioning check valve
1. Malfunctioning unloader valve on
pressure switch
1. Loose fasteners
2. Belt needs replaced
3. Belt alignment
13
CORRECTIVE ACTION
1. Limit the circuit to the use of only the air compressor.
2. Be sure that fuses or circuit breakers are rated properly.
3. Replace check valve.
Do not disassemble check valve
with air pressure in tank
4. Adjust or replace.
5. Check all electrical connections.
6. Replace motor.
1. Replace check valve.
Do not disassemble check valve
with air pressure in tank
2. Tighten.
3. Replace tank. Never repair a damaged tank.
1. Replace the check valve if the unloader valve bleeds off
constantly.
Do not disassemble check valve
with air pressure in tank
1. Replace the pressure switch if it does not release the
pressure for a short period of time when the unit shuts
off.
Do not disassemble pressure
switch with air pressure in tank
1. Tighten.
2. Replace with correct size.
3. Align flywheel and pulley.