Makita MAC5500G Manuel D'utilisation page 11

PRObLEM POSSIbLE CAuSE
Insufficient Clogged inlet filter.
output, low
discharge Leaks in air lines, air valves,
pressure fittings, etc...
Drive belts slipping.
Drain valve left open.
Defective pressure gauge.
Leaking head gasket.
Dirty or plugged inter cooler
tubes.
Unloader pilot adjusted too
low, or defective.
Worn or defective compressor
valves.
Worn piston, worn out rings.
Restrictive check valve.
Compressor incorrectly sized. Upgrade to larger compressor.
Engine stalls. Faulty unloader / check valve.
Low oil in engine
Compressor not level.
Water in Cycle too short; compressor
crankcase does not operate long enough
oil gets dirty, to vaporize condensed mois-
rusty valves ture during compression.
or cylinders
Compressor operating out-
side in cold conditions or inlet
filter not protected against
weather.
tROubLE ShOOtInG
CORRECtIvE ACtIOn
Clean or replace as necessary.
Replace worn components as
necessary.
Tension V-belts.
Close drain valve.
Replace pressure gauge.
Replace head gasket.
Remove and clean inter cooler
tubes.
Make necessary adjustments.
Replace valves.
Replace worn parts.
Clean check valve and replace
if necessary.
Replace unloader check valve.
Add oil to engine
Level compressor.
Allow for longer operating
cycle.
Provide adequate protec-
tion against extreme weather
conditions.
11