84
(XV) Malfunctioned Air Compressor
Fault Characteristics & Causes
Elimination Approaches
1. No inflating
a) Relief valve of air compressor is seized.
b) Valve sheet is deformed or broken.
c) There is excessive coke at air inlet/outlet or
inside the chamber.
d) Small washer for exhaust valve sheet of air
compressor is missed.
a) Check the relief valve components, clean or
replace failure ones.
b) Take down and check the cylinder head, check
the valve sheet. Replace the deformed or broken
one.
c) Take down and check the cylinder head, clean up
the valve base plate and valve sheet.
d) Check whether any part is missed and confirm
the parts are all in place.
2. Air pressure is insufficient.
a) Driving belt of air compressor is too loose
causing skid.
b) Oil-water separator or air filter is clogged.
c) Air compressor
’
s cylinder block, piston and
piston ring are worn causing air leakage.
d) Valve sheet of air compressor performs
incomplete sealing, the spring thereof is soft
a) Adjust the belt tensity or replace the belt.
b) Check and clean the dirt in the oil-water
separator, air filter and the pipes thereof.
c) Replace or repair the cylinder block, piston or
piston ring.
d) Replace the valve sheet or spring.
e) Tighten the bolt on cylinder head or replace the
