Trouble shooting

Compressor is not

Prolonged excessive use of

Decrease amount of air usage.

supplying enough

 

air

Check the accessory air requirement. If

air to operate

Compressor is not large

 

it is higher than the SCFM or pressure

accessories

 

enough for accessory

 

supplied by your air compressor, a larger

 

 

 

 

compressor is needed to operate acces-

 

 

 

 

sory.

 

Hole in air hose

Replace air hose.

 

Check valve restricted

Remove, clean or replace

 

Air leaks

Tighten fittings.

 

Restricted air intake filter

Clean or replace air intake filter.

 

 

 

 

 

Regulator knob

Regulator is damaged

Replace.

has continuous air

 

 

 

 

leak

 

 

 

 

 

 

 

 

 

Regulator will not

Regulator is damaged

Replace.

shut off air outlet

 

 

 

 

Moisture in pump

Unit operating in damp or

Move unit to a dry well-ventilated area.

crankcase

 

humid conditions

 

 

 

Detergent type oil being used

Drain oil and refill with non detergent oil.

 

 

in pump

 

 

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Bosch Power Tools CET4-20W, CET3-10 manual Trouble shooting