Makita MAC5500G operating instructions Trouble Shooting

TROUBLE SHOOTING

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

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