Graco 249881 User Manual

1.

Turn off the power supply to the pump.

2.

Trigger the dispense valve into a waste container to 
relieve pressure.

3.

Open any bleed-type master air valves and fluid 
drain valves in the system.

4.

Leave the drain valve open until you are ready to 
pressurize the system.

.

•

Pump: Follow the manufacturer's recommendations.

•

Air and Fluid hoses: Use only grounded hoses.

•

Air compressor: Follow the manufacturer's recom-
mendations. 

•

Fluid supply container: Follow the local code.

•

To maintain grounding continuity when flushing or 
relieving pressure, always hold a metal part of the 
valve firmly to the side of a grounded metal pail, 
then trigger the valve.

1.

Relieve the pressure. Follow the Pressure Relief 
Procedure on page 8.

2.

Close the shut-off valve (J). See F

. 4.

3.

Ground the hose and reel or console. See Ground-
ing. 

4.

If this is a new installation or if the fluid in the lines is 
contaminated, flush the lines before you install the 
metered valve.

Read warnings, page 3, and follow the Pressure 
Relief Procedure whenever you:
•

are instructed to relieve pressure

•

stop operation

•

check, clean, or service any of the equipment

The Matrix meter must be powered, nozzle open 
(counter clockwise), and in dispense mode for fluid 
pressure to be relieved.

The system must be properly grounded. Read warn-
ings, page 3. Refer to the user manuals for the pump 
and other system components, and ground the follow-
ing:

Contaminated lines could cause the valve to leak. 
Failure to flush may result in warranty coverage being 
denied. See CleanLine Filtration System, Instruction 
Manual 310652.