PROBLEM

CAUSE

CORRECTION

Pressure reading

It is normal for "some"

If there is an excessive

on the regulated

pressure drop to occur.

amount of pressure drop

pressure gauge

 

when the accessory is used,

drops when an

 

adjust the regulator following

accessory is

 

the instructions in the

used.

 

"Description of Operation"

 

 

paragraph in the "Operation

 

 

Section".

 

 

NOTE: Adjust the regulated

 

 

pressure under flow

 

 

conditions (while accessory

 

 

is being used).

Knocking Noise.

Possible defect in safety

Operate safety valve

 

valve.

manually by pulling on ring.

 

 

If valve still leaks, it should

 

 

be replaced.

 

Defective check valve.

Remove and clean, or

 

 

replace.

 

 

 

Compressor is

Prolonged excessive use of

Decrease amount of air

not supplying

air.

usage.

enough air to

Compressor is not large

Check the accessory air

operate

accessories.

enough for air requirement.

requirement. If it is higher

 

 

than the SCFM or pressure

 

 

supplied by your air

 

 

compressor, you need a

 

 

larger compressor.

 

Hole in hose.

Check and replace if

 

 

required.

 

Check valve restricted.

Remove and clean, or

 

 

replace.

 

Air leaks.

Tighten fittings.

 

Restricted air intake filter.

Clean or replace air intake

 

 

filter. Do not operate the air

 

 

compressor with the filter

 

 

removed. Refer to the "Air

 

 

Filter" paragraph in the

 

 

Maintenance" section.

 

 

 

Regulator knob

Damaged regulator.

Replace.

has continuous

 

 

air leak.

 

 

 

 

 

D26700

22- ENG

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Craftsman 919.7243 owner manual Pressure reading