Graco SuperCat 232721, Instructions-Parts List Manual

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Installation
9. Ground the equipment.
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding could cause static
sparking, which could cause a fire or
explosion. To reduce the risk of property
damage or serious injury, follow the
grounding instructions below.
The following grounding instructions are minimum
requirements for a system. Your system may include
other equipment or objects which must be grounded.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Your
system must be connected to a true earth ground.
SuperCat Proportioner:
Loosen the grounding lug locknut (X) and washer
(Y) on the Premier pump. See Fig. 11. Insert one
end of a 12 ga. (1.5 mm
) minimum ground wire
(W) into the slot in grounding lug (Z) and tighten
the locknut securely. Connect the other end of the
ground wire to a true earth ground.
Fig. 11
X
Y
W
Z
0864
KEY
W Ground Wire
X Locknut
Y Washer
Z Grounding
Lug
Fluid Heater (if present): refer to the heater
manual, supplied.
Air hoses: use only electrically conductive hoses
with a maximum of 500 feet (150 m) combined
hose length to ensure grounding continuity.
Fluid hoses: use only electrically conductive fluid
hoses.
Air compressor: follow manufacturer’s recom-
mendations.
Spray gun: ground through connection to a prop-
erly 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 your
local code. Use only metal pails, which are conduc-
tive, placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continuity.
Waste containers placed under the fluid drain
valves:
use only metal pails, which are conductive.
To maintain grounding continuity when flush-
ing or relieving pressure,
always hold a metal
part of the spray gun firmly to the side of a
grounded metal
pail, then trigger the gun.
10. Check grounding continuity.
Have a qualified electrician check the grounding
continuity between the pump and the true earth
ground. The resistance must be less than 25
ohms. If the resistance is greater than 25 ohms,
the pump ground wire may not be properly con-
nected, an internal ground wire connection may be
loose, or a different ground site may be required.
Do not operate the system until the problem is
corrected.