Campbell Hausfeld Air compressor Operating Instructions Manual page 7

Operating Instructions
Vertical Models
Troubleshooting Chart (Continued)
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Excessive noise 6 Noisy check valve in 6 Replace
(knocking) compressor system
Do not disassemble check valve with
r !1 el." l_'L_] -q L4 air pressure in tank Continued
Larg_equanityofoilinthe 1 Wornpistonrings 1 Replacewithnewrings. Maintain oil level and change oil
discharge air more frequently.
NO[E: In an oil 2 Compressor air intake 2 Clean filter Check for other restrictions in the intake system
lubricated compressor there restricted
will always be a small 3 Excessive oil in 3 Drain down to full level
amount of oil in the all complessol
stleam 4 Wlong oil viscosity 4 Use Mobil 1 low-30
Water in discharge air/tank 1 Normal operation The 1 Drain tank more often At least daily.
amount of watel
increases with humid 2 Add a filter to reduce the amount of water in the air line
weather
Motor hums and runs slowly 1 Use of extension cord 1 Do not use an extension cord Use longer air hose with
or not at all larger diameter.
2 Malfunctioning check 2 Replace check valve, unloader valve or pressure switch.
valve ol unloader valve , . _ , Do not disassemble check valve with
air pressure in tank
3 Low voltage 3 Check with voltmeteh check leset switch on motol. It leset
switch trips repeatedly, find and correct the cause See next
item.
4 Malfunctioning pressure 4 Repair or replace pressure switch
switch - contacts will not
close
Reset mechanism cuts out
repeatedly or fuses blow
repeatedly
1 Too many devices on
same circuit
2 Incorrect fuse size or
circuit breaker
3 Malfunctioning check
valve
1 Limit the circuit to the use of only the air complessol.
2 Be sure that fuses or cilcuit breakers ale lated properly
3 Replace check valve.
DO not disassemble check valve with
air pressure in tank
4 Pressure switch set too 4 Adjust or replace
high
5 Loose wiring 5. Check all electrical connections
6 Malfunctioning motor 6 Replace motor
Tank does not hold pressure 1 Worn check valve 1 Replace check valve.
when corn ressors off and
the shut o_t valve is closed _ Do not disassemble check valve with
air pressure in tank
2 Check all connections and 2 Tighten
fittings for leaks
3 Check tank for cracks or 3 Replace tank Never repair a damaged tank
pin holes
Pressure switch 1 Malfunctioning check 1 Replace the check valve if the unloader valve bleeds oft
continuously blows air out valve constantly
the unloader valve _ Do not disassemble check valve with
air pressure in tank
Plessule switch does not 1 Malfunctioning unloadel 1 Replace the plessule switch if it does not lelease the
lelease air when the unit valve on pressule switch pressure for a sholt peliod of time when the unit shuts off.
shuts off If_-_f_r_F'_-4_ Do not disassemble pressure switch with
air pressure in tank
Excessive vibration 1. Loose fastenels I Tighten.
2. Belt needs replaced 2 Replace with correct size.
3 Belt alignment 3 Align Nywhelland pulley
7