Campbell Hausfeld VT6315 Mode D'emploi page 7

Operating Instructions
Troubleshooting Chart
Symptom
Large quanity of oil in
the discharge air
nOTe: In an oil lubricated
compressor there will
always be a small amount
of oil in the air stream .
Water in discharge air /
tank
Motor hums and runs
slowly or not at all
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
(Continued)
Possible Cause(s)
1 . Worn piston rings
2 . Compressor air intake restricted
3 . Excessive oil in compressor
4 . Wrong oil viscosity
Normal operation . The amount of
water increases with humid weather
1 . Use of extension cord
2 . Malfunctioning check valve or
unloader valve
3 . Low voltage
4 . Malfunctioning pressure switch -
contacts will not close
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
Malfunctioning check valve
Malfunctioning unloader valve on
pressure switch
1 . Loose fasteners
2 . Belt needs replaced
3 . Belt alignment
VT6315, VT6358, VT6361, VT6367
Corrective Action
1 . Replace with new rings . Maintain oil level and change oil more
frequently .
2 . Clean filter . Check for other restrictions in the intake system .
3 . Drain down to full level .
4 . Use Mobil 1 10W-30 .
®
1 . Drain tank more often . At least daily .
2 . Add a filter to reduce the amount of water in the air line .
1 . Do not use an extension cord . Use longer air hose with larger
diameter .
2 . Replace check valve, unloader valve or pressure switch .
Do not disassemble check
valve with air pressure in tank
3 . Check with voltmeter, check reset switch on motor . If reset switch
trips repeatedly, find and correct the cause . See next item .
4 . Repair or replace pressure switch .
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 .
Replace the check valve if the unloader valve bleeds off constantly .
Do not disassemble check
valve with air pressure in tank
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 check
valve with air pressure in tank
1 . Tighten .
2 . Replace with correct size .
3 . Align flywhell and pulley .
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