Delta 66-651-1 User Manual download pdf (Page 19)

19- ENG

A08184

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving

parts or compressed air sources, moving parts or

compressed air sources. Personal injury may occur. Prior to attempting

any repairs, unplug the air compressor and bleed off all air tank air

pressure.

PROBLEM

CAUSE

CORRECTION

Pressure switch does

not shut off motor when

compressor reaches "cut-

out" pressure.

Pressure switch "cut-out"

too high.

Move On/Auto/Off lever

to the "OFF" position, if

the outfit does not shut off

contact a Trained Service

Technician.

Contact a Trained Service

Technician.

Excessive tank

pressure - safety

valve pops off.

Tube fittings are not tight

enough.

Tighten fittings where air

can be heard escaping.

Check fittings with soapy

water solution. Do Not

Overtighten.

Air leaks at

fittings.

Air leaks at

pressure switch

release valve.

Defective pressure switch

release valve.

Contact a Trained Service

Technician.

Air leaks in air

tank or at air

tank welds.

Defective air tank. Air tank must be replaced.

Do not repair the leak.

Do not

drill into,

weld or otherwise modify

air tank or it will weaken.

The tank can rupture or

explode.

Air leaks

between head

and valve plate.

Leaking seal.

Air leaks at or

inside check

valve

Check valve seat damaged. A defective check valve

results in a constant air leak

at the pressure release valve

when there is pressure in the

tank and the compressor

is shut off. Replace check

valve. Refer to the "To

Replace or Clean Check

Valve" in the "Service and

Adjustment" section.

Contact a Trained Service

Technician.

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Delta 66-651-1 User Manual Page 19

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