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Grounding
In a low pressure air spray system, static sparking is
generally not a problem. However, some simple pre-
cautions should be taken to reduce the risk. Check you
local electrical code for detailed grounding instructions
for your area and type of equipment, and be sure to
ground all of this spray/dispensing equipment.
1. Pump: Air Motor Model 204464 –
loosen the grounding lug locknut (W) and washer
(X). Insert one end of a 12 ga. (1.5 mm
ground wire (Y) into the slot in lug (Z) and tighten
the locknut securely. See Fig. 1. Connect the other
end of the wire to a true earth ground.
Air Motor Models 204722 and 223953 –
use a ground wire and clamp as instructed in your
separate pump manual.
2. Air compressor: follow manufacturer's recommen-
dations.
3. Fluid hoses: use only grounded hoses with a
maximum of 500 ft (150 m) combined hose length
to ensure grounding continuity.
4. Spray gun or dispensing valve: grounding is ob-
tained through connection to a properly grounded
fluid hose and pump.
5. Object being sprayed: according to your local
code.
4
307851
Installation
6. Fluid supply containers: 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.
2
) minimum
8. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
spray gun/dispensing valve firmly to the side of a
grounded metal pail, then trigger the gun/valve.
Fig. 1
Z
X
Y
W
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