Campbell Hausfeld VT6358, Operating Instructions And Parts Manual

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TROUBLESHOOTING GUIDE (CONTINUED)
MAINTENANCE /
REP
AIR
TROUBLESHOOTING
OPERA
TION
ASSEMBL
Y /
INST
ALLA
TION
SAFETY /
SPECIFICA
TIONS
GETTING ST
AR
TED
13
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Motor hums and runs slowly or
not at all (Continued)
7. Defective unloader valve on pressure
switch
7. Replace unloader valve.
8. Defective motor capacitor(s) 8. Replace capacitor(s).
9. Defective motor 9. Replace motor.
Reset mechanism cuts out
repeatedly or circuit breaker
trips repeatedly 1. Lack of proper
ventilation / room temperature too
high
1. Move compressor to well-ventilated area.
2. Too many devices on same circuit 2. Limit the circuit to the use of only the air
compressor.
3. Restricted air intake 3. Clean or replace filter element.
4. Loose electrical connection 4. Check all electrical connections.
5. Pressure switch shut-off pressure set
too high
5. Replace pressure switch.
6. Malfunctioning check valve 6. Replace check valve.
Risk of Explosion. Do not
disassemble check valve with
air pressure in tank.
7. Defective unloader valve on pressure
switch
7. Replace unloader valve.
8. Defective motor capacitor(s) 8.Replace capacitor(s).
9. Malfunctioning motor 9. Replace motor.
Tank does not hold pressure
when compressor is off and
the shut off valve is closed 1. Air leaks (fittings, tubing on
compressor, or plumbing outside
system)
1. Check all connections with soap and water solution.
Tighten; or remove and apply sealant to threads,
then reassemble.
2. Worn check valve 2. Replace check valve.
Risk of Explosion. Do not
disassemble check valve with
air pressure in tank.
3. Check tank for cracks or pin holes 3. Replace tank. Never repair a damaged tank.
Pressure switch continuously
blows air out the unloader
valve Malfunctioning check valve Replace the check valve if the unloader valve on the
pressure switch bleeds off constantly when unit shuts
off.
Risk of Explosion. Do not
disassemble check valve with
air pressure in tank.
Excessive vibration 1. Loose fasteners on pump or motor 1. Tighten fasteners.
2. Belt needs replaced 2. Replace with correct size.
3. Belt alignment 3. Align flywheel and pulley.
Pressure switch does not
release air when the unit shuts
off Malfunctioning unloader valve on
pressure switch Replace the unloader valve if it does not release the
pressure for a short period of time when the unit shuts
off.
Risk of Explosion. Do not
disassemble unloader valve
with air pressure in tank.