6 306556
Installation
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
NOTE: Always use Genuine Graco Parts and
Accessories, available from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE OR EXPLOSION HAZ-
ARD on page 4.
Pump: Use a ground wire and clamp as shown in
Fig.1.
Air, and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow manufacturer’s
recommendations.
Spray gun and dispensing valve: Ground through
connection to a properly grounded fluid hose and
pump.
Fluid supply container: Follow your local code.
Truck bed or platform: Follow your local code.
Solvent pails used when flushing: Follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the pail
on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding
continuity.
To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the
dispensing valve firmly to the side of a grounded
metal pail, then trigger the valve.
To ground the pump, remove the ground screw (Z)
and insert through the eye of the ring terminal at the
end of ground wire (Y). Fasten the ground screw back
onto the pump and tighten securely. Connect the other
end of the ground wire to a true earth ground. See Fig.
1. To order a ground wire and clamp, order Part No.
222011.
Fig. 1 TI1052
Y
Z
Pressure Relief Procedure
WARNING
SKIN INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause
serious injury. To reduce the risk of an
injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you
Are instructed to relieve the pressure
Shut off the pump
Check or service any of the system equipment
1. Close the pump’s air regulator
2. Close the supply pump’s bleed-type master air
valve (required in this system).
3. Hold a metal part of the dispensing valve firmly to
a grounded metal waste container and open the
dispensing valve until pressure is fully relieved.
If you suspect that the dispensing valve, extension, or
grease fitting coupler is clogged, or that pressure has
not been fully relieved after following the steps above,
VERY SLOWLY loosen the coupler or hose end
coupling and relieve pressure gradually, then loosen
completely, then clear the clog.
