Makita MAC5500G Manuel D'utilisation page 12

PRObLEM POSSIbLE CAuSE
System pressure leaking back
through check valve when
compressor is stopped.
Wrong oil being used.
Excessive Loose compressor, engine or
vibration engine guard.
Compressor not level.
Leg bolts over tightened to
floor.
Excessive discharge pres-
sure.
Wrong oil being used.
Loose flywheel, drive, pulley
or drive belts.
Worn connector rods, wrist
pin or main bearings.
Compressor Compressor valves loose or
Knocks broken.
Check valve knocks at low
pressure.
Compressor Clogged inlet filter.
uses too
much oil
Wrong oil being used, wrong
viscosity.
Oil level too high.
Crankcase breather valve
malfunction.
Compressor runs unloaded
too long
12
tROubLE ShOOtInG
CORRECtIvE ACtIOn
Check and replace check
valve if necessary.
Drain and replace with proper
oil
Tighten components.
Level compressor
Loosen leg bolts.
Reduce operating pressure.
Drain and replace with proper
oil.
Tighten loose components and
check belts.
Check and replace worn parts.
Check and replace worn or
broken valves..
Remove and clean check
valve.
Clean inlet filter or replace as
necessary.
Drain and replace oil.
Fill compressor with oil to
proper level.
Replace crankcase breather.
Increase load or stop compres-
sor when not needed. Check
for air leaks.