Campbell Hausfeld EZ5000 Series Troubleshooting Chart, Symptom Possible Causes Corrective Action

EZ5000 Series

Troubleshooting Chart

Symptom Possible Cause(s) Corrective Action

Motor runs but won't	1. Inlet or outlet valve stuck.
prime material
	2.	Suction tube connection loose.
	3.	Control lever in spray or roll posi-
		tion.
	4.	Air in hydraulic system causing
		loss of suction and no diaphragm
		movement.
	5.	Suction tube filter clogged.
	6.	Inlet or outlet valves dirty or
		worn.
	7.	Material is too thick or not
		strained properly.

1.Push the spring inside the inlet valve & push on outlet valve ball.

2.Tighten clamp.

3.Turn control to prime position.

4.Rebleed pressure valve: Turn control between ON/OFF posi- tion and PRIME/CLEAN PUMP position and allow motor to run for a few minutes. Then turn lever to prime position.

5.Clean or replace suction tube filter.

6.Remove and clean or replace inlet and outlet valve.

7.Thin, mix and strain all materi- al to be sprayed.

Sprayer builds pressure	1. Inlet and/or outlet valves are		1.	Remove and replace valves as
but pressure drops		worn.		needed.
when gun is triggered	2. Suction tube connection loose.		2.	Tighten clamp.
	3.	Suction tube or suction filter	3.	Replace suction filter.
		clogged.
	4.	Clogged gun filter or worn tip.	4.	Replace filter or tip.
	5.	Tip is too large for material	5.	Replace with smaller size tip.
		being sprayed.
	6.	Suction hose assembly is dam-	6.	Replace suction hose assembly.
		aged.
Unit primes but will	1. *Dirty or worn inlet valve.		1.	Remove and replace valves as
not build pressure	2.	Pressure not turned up high		needed.
			2.	Turn control to higher setting.
		enough.
	3.	*Oil level in the hydraulic hous-	3.	Check oil level. If low, fill to
		ing is too low.		1/4” from top of housing with
				10W hydraulic oil (CH #
	4.	Material is too thick or not prop-		AL1702).
			4.	Thin and/or strain material.
		erly strained.
	5.	*Dirty, stuck or worn	5.	Remove and clean or replace
		prime/spray valve causing fluid to		valve (SCR).
		come through bypass tube while
		unit is in spray position.

Gun continues to spray	1. Paint build up inside gun valve
when trigger is		or gun valve is dirty.
released	2.	Gun valve is worn.
	3.	Gun trigger is not properly
		adjusted.
	4.	Filter housing is tightened down
		too much.

1.Clean or replace gun valve.

2.Replace gun valve or replace entire gun.

3.Adjust trigger by adjusting nut behind trigger. Move nut towards handle if trigger does not move. Tighten nut by turn- ing towards spray tip if trigger moves too much.

4.Turn filter housing bolts about 1/2 turn counterclockwise.

*= Service Center Recommended

www.chpower.com

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