Installation - Graco 237-004 Instructions-Parts List Manual

Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 4.
1. Pump: loosen the grounding lug locknut (W) and
washer (X). Insert one end of a 12 ga (1.5 mm
minimum ground wire (Y) into the slot in lug (Z)
and lighten the locknut securely. See Fig. 1. Con-
nect the other end of the wire to a true earth
ground.
2. Air and fluid hoses: use only grounded hoses with
a maximum of 500 ft (150 m) combined hose
length to ensure grounding continuity.
3. Air compressor: follow manufacturer's recommen-
dations.
4. Spray gun: grounding is obtained through connec-
tion to a properly grounded fluid hose and pump.

Installation

5. Object being sprayed: according to your local
code.
6. Fluid supply container: according to your local
code.
7. All solvent pails used when flushing, according to
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.
8. T o maintain grounding continuity when flushing or
2
)
relieving pressure, always hold a metal part of the
spray gun firmly to the side of a grounded metal
pail, then trigger the gun.
Fig. 1
W
Y X
306–694
Z