TROUBLESHOOTING

Risk of Unsafe Operation. Unit cycles automatically when power is on. When performing maintenance, you

may be exposed to voltage sources, compressed air, or moving parts. Personal injuries can occur. Before performing any maintenance or repair, disconnect power source from the compressor and bleed off all air pressure.

 

PROBLEM

CAUSE

CORRECTION

 

Excessive

Pressure switch does

Move On/Auto/Off lever to

 

tank pressure

not shut off motor when

the "Off" position, if the unit

 

- safety valve

compressor reaches "cut-

does not shut off contact a

 

pops off.

out" pressure.

Trained Service Technician.

 

 

Pressure switch "cut-out"

Contact a Trained Service

 

 

too high.

Technician.

 

 

 

 

 

 

Air leaks at

Tube fittings are not tight

Tighten fittings where air can

 

fittings.

enough.

be heard escaping. Check

 

 

 

fittings with soapy water

 

 

 

solution. DO NOT OVER

 

 

 

TIGHTEN.

 

 

 

 

 

Air leaks at or

Check valve seat damaged.

A defective check valve

 

inside check

 

results in a constant air leak

 

valve.

 

at the pressure release valve

 

 

 

when there is pressure in the

 

 

 

tank and the compressor

 

 

 

is shut off. Replace check

 

 

 

valve. Refer the "To Replace

 

 

 

or Clean Check Valve" in the

 

 

 

"Service and Adjustments"

 

 

 

section.

 

 

 

 

 

 

Air leaks at

Defective pressure switch

Contact a Trained Service

 

pressure switch

release valve.

Technician.

 

release valve.

 

 

 

 

 

 

 

 

 

Air leaks in air

Defective air tank.

Air tank must be replaced.

 

tank or at air

 

Do not repair the leak.

 

tank welds.

 

Risk of

 

 

 

Bursting.

 

 

 

Do not drill into, weld or

 

 

 

otherwise modify air tank

 

 

 

or it will weaken. The tank

 

 

 

can rupture or explode.

 

 

 

 

 

 

Air leaks

Leaking seal.

Contact a Trained Service

 

between head

 

Technician.

 

and valve plate.

 

 

 

 

 

 

 

 

 

 

 

 

 

A10260

24- ENG

Page 24
Image 24
Oki C5510 instruction manual Troubleshooting, Problem Cause Correction