Makita MAC5500G - Manuel (Page 10)

10
tROubLE ShOOtInG
PRObLEM POSSIbLE CAuSE CORRECtIvE ACtIOn
Will not start Please refer to Honda manual
included
Low pressure Safety valve leaks. Replace safety valve.
Drain cock open. Close drain cock.
Loose tubes or fittings. Tighten fittings.
Dirty or plugged air filter. Clean or replace as necessary.
Defective unloader valve. Replace unloader valve.
Oil in
discharge
Too much oil in the crank-
case.
Drain oil and fill to proper level.
Improper oil viscosity. drain and replace oil
Compressor overheated. Air pressure regulated too
high.
Restricted air filter. Clean or replace air filter.
Worn piston rings. Replace piston rings.
Compressor
overheats
Dirty compressor head, cylin-
der or intercooler.
Clean with compressed air.
Clogged inlet filter. Clean or replace as necessary.
Operating pressure too high. Reduce operating pressure.
Low oil or wrong oil being
used.
Drain and replace oil.
Compressor cycle too long.
Proper cycle is 50-60% on
Stop/Start operation.
Allow for longer rest between
cycles.
Compressor
loads & un-
loads or idols
up & down
excessively
Pilot valve differential adjust-
ed too close.
Leaks in air system.
Replace worn components as
necessary.
Make necessary adjustments.
Check for leaks.
Worn or loose drive belts Tighten V-belts or replace
Defective compressor valves. Replace valves.
Compressor too small for
intended use.
Upgrade to larger compressor.