Installation
8
312376A
Installation
Grounding
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
Pump: use a ground wire and clamp. Loosen the
grounding lug locknut and washer. Insert one end of a
1.5 mm
2
(12 ga) minimum ground wire into the slot in
lug and tighten the locknut securely. Connect the other
end of the wire to a true earth ground. Order Part
237569 Ground Wire and Clamp.
Air and fluid hoses: use only electrically conductive
hoses.
Air compressor: follow manufacturer's recommenda-
tions.
Spray gun/dispense valve: ground through connection
to a properly grounded fluid hose and pump.
Fluid supply container: follow your local code.
Object being sprayed: follow your local code.
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive sur-
face, such as paper or cardboard, which interrupts
grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the spray
gun/dispense valve firmly to the side of a grounded
metal pail, then trigger the gun/valve.
System Accessories
Be sure all air lines (T) and fluid lines (S) are properly
sized and pressure-rated for your system. Use only
electrically conductive hoses. Fluid hoses must have
spring guards on both ends.
Mounting Accessories
Mount the pump package to suit the type of installation
planned. Pump dimensions are shown on page 25.
Refer to Check-Mate Displacement Pump manual
312375 for mounting hole layout.
Air Line Accessories
Install the following accessories as listed. Refer to F
to see air line accessories represented in a typical sup-
ply unit installation.
•
Main air shutoff valve (W) isolates the air line
accessories for servicing. Locate upstream from all
other air line accessories.
F
IG
. 3
ti8250a
A main air bleed valve and pump bleed valve (P) are
required. These accessories help reduce the risk of
serious injury, including fluid injection and splashing of
fluid in the eyes or on the skin, and injury from moving
parts if you are adjusting or repairing the pump.
The main air shutoff valve shuts off the air to the pump
and ram. The air motor valve relieves air trapped
between this valve and the pump after the air is shut
off. Trapped air can cause the pump to cycle unexpect-
edly. Locate the valve close to the pump.
The pump bleed valve assists in relieving fluid pressure
in the displacement pump, hose, and gun/valve. Trig-
gering the gun/valve to relieve pressure may not be
sufficient.
If using Check-Mate pump with Graco Supply Sys-
tems, refer to Supply Systems Operation manual
312371 for system accessory installation instruc-
tions.
For use with all other systems, use this section for
accessory installation instructions.
