Trouble Shooting - Makita MAC5501G Operating Instructions Manual

PROBLEM POSSIBLE CAUSE
Will not start
Low pressure Safety valve leaks
Drain cock open
Loose tubes or fittings
Dirty or plugged air filter
Defective unloader valve
Oil in Too much oil in the crank-
Discharge case
Improper oil viscosity
Compressor overheated
Restricted air filter
Worn piston rings
Compressor Dirty compressor head, cylin-
Overheats der or intercooler
Clogged inlet filter
Operating pressure too high
Low oil or wrong oil being used
Compressor cycle too long.
Proper cycle is 50-60% on
Stop/Start operation
Compressor Pilot valve differential adjust-
loads & un- ed too close.
loads or idols
up & down Leaks in air system
excessively Worn or loose drive belts
Defective compressor valves
Compressor too small for
intended use

TROUBLE SHOOTING

CORRECTIVE ACTION
Please refer to Honda manual
included
Replace safety valve
Close drain cock
Tighten fittings
Clean or replace as necessary
Replace unloader valve
Drain oil and fill to proper level
Drain and replace oil
Air pressure regulated too
high
Clean or replace air filter
Replace piston rings
Clean with compressed air
Clean or replace as necessary
Reduce operating pressure
Drain and replace oil
Allow for longer rest between
Cycles
Replace worn components as
necessary
Make necessary adjustments
Check for leaks
Tighten V-belts or replace
Replace valves
Upgrade to larger compressor
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