Setup
6
306817N
Setup
Grounding
Although water generally provides a natural electrical
ground, the following equipment must be grounded if the
cleaning chemical are volatile.
1.
When cleaning in enclosed areas, such as
storage tanks, locate the pump and air compressor
outside the area and well away from it. Provide
adequate ventilation. If the area you are cleaning
has stored flammable materials. take appropriate
precautions to avoid static sparking. Consul your
local codes.
2.
Pump: use a ground wire and clamp. See F
Loosen the grounding lug locknut (W) and washer
(X). Insert one end of a 1.5 mm
2
(12 ga) minimum
ground wire (Y) into the slot in lug (Z) and tighten
the locknut securely. Connect the other end of the
wire to a true earth ground. Order Part No. 237569
Ground Wire and Clamp.
F
IG
. 1
3.
Air and fluid hoses: use only electrically
conductive hoses.
4.
Air compressor: follow manufacturer’s
recommendations.
5.
Spray gun: ground through connection to a
properly grounded fluid hose and pump.
6.
Fluid supply container: follow your local code.
7.
Object being sprayed: follow your local code.
8.
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.
9.
To maintain grounding continuity when flushing
or relieving pressure, hold a metal part of the
spray gun firmly to the side of a grounded metal pail,
then trigger the gun.
General Information
selecting and installing required and optional
components. For assistance in designing a system to
suit your needs, contact your Graco distributor. Refer to
F
. 2 for callouts in parentheses.
Before operating the pump, ground the system as
explained below. Also read the section FIREAND
EXPLOSION HAZARD on page 5.
Y
W
X
Z
