Grizzly H4517, H4518 instruction manual Turn compressor off, unplug from power Valve Stays

PROBLEM			CAUSE				ACTION
Motor runs hot		3.	Compressor		is	3.	Do not allow the compressor to run over
			exceeding	its duty-			its recommended duty cycle.
			cycle.
Pressure relief		1.	Faulty	pressure		1.	Turn compressor off, unplug from power
valve	stays		switch, unit	is trying			supply, drain tank. DO NOT USE until
open	and		to overpressure		the		switch is repaired or replaced.
motor	won’t		tank.			2.	Relief valve is relieving pressure too
stop running.		2.	Faulty	pressure			early, test pressure relief and repair or
			relief valve.				replace.
Air leaks from		1.	Faulty check valves.			1.	Clean dirt or debris from rubber mem-
p r e s s u r e							brane of check valve after removing top
switch							nut.
		2. faulty		pressure		2.	Repair or replace pressure switch.
			switch.
Air is	dirty or	1. Tank is not drained.				1. Open drain cocks on both tanks and make
has excessive							certain all condensation water is drained
moisture.		2.	Delivery pipes		are		out.
						2.	Remove delivery pipes, clean out and
			dirty.				replace.

-16- Model H4517/H4518Air Compressors