Graco 333492B important safety instructions Troubleshooting, Problem Cause Solution

Troubleshooting

Troubleshooting

Relieve pressure, page 8, before you check or repair the meter. Be sure all other valves, controls and pump are operating properly.

Problem	Cause	Solution
		1. Relieve pressure, page 8.
		2. Remove meter from hose.
		3. Clean or replace strainer (3a).
	Strainer (3a) is clogged.	4. Install meter to hose (See Installing
		Meter, page 10).
		5. If the problem remains, contact your
		Graco distributor for repair or
		replacement.
Slow or no fluid flow.	Pump pressure is low.	Increase pump pressure.
	Twist lock nozzle not fully open.	Aim nozzle into bucket. Fully open noz-
		zle.
		Do not trigger meter when nozzle is
		closed! If you do accidentally trigger
		the meter with the nozzle closed, point
		nozzle into a waste bucket and slowly
		open the nozzle to relieve pressure and
		expel built up fluid.
	Fluid shut-off valve (J or L) is not fully open	Fully open fluid shut-off valve (J or L).
	(page 9).
	Foreign material is wedged in the meter	Contact your Graco distributor for repair
	housing.	or replacement.
Meter leaks from twist lock nozzle.	Twist lock nozzle has a damaged seal.	Replace nozzle. See Step a in Installa-
• It is important to distinguish		tion Procedure, page 11.
between the two causes of this	Valve has damaged or obstructed seals.	Clean valve assembly or replace.
problem. A new nozzle will NOT
correct a fluid leak caused by a
faulty valve.
	Poor swivel/hose connection.	Apply PTFE tape (leave a minimum 2
		engaged threads uncovered for electri-
		cal continuity) or sealant to threads of
		hose and tighten the connection. See
Meter leaks from swivel.		Step 2 in Installation Procedure, page
		10.
	Poor swivel/meter housing connection.	Torque the fitting to 20-25 ft.-lbs.
	Swivel seals have deteriorated and leak.	Replace swivel.

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