Grounding - Graco PRO Auto Xs Instructions-Parts List Manual

Installation

Grounding

WARNING
Fire, Explosion, and Electric Shock Hazard
When operating the electrostatic gun, any
ungrounded objects in the spray area (peo-
ple, containers, tools, etc.) can become
electrically charged. Improper grounding
can result in static sparking, which can
cause a fire, explosion, or electric shock.
Follow the grounding instructions below.
The following are minimum grounding requirements for
a basic electrostatic waterborne system. Your system
may include other equipment or objects which must be
grounded. Check your local electrical code for detailed
grounding instructions. Your system must be connected
to a true earth ground.
• Electrostatic Air Spray Gun: ground the gun by con-
necting the red-colored Graco Grounded Air Hose
to the turbine air inlet and connecting the air hose
ground wire to a true earth ground. See Check
Electrical Grounding, page 19.
• Graco Waterborne Fluid Hose: the hose is grounded
through the conductive layer. Install the hose as
instructed on page 14.
• Voltage Isolation System: electrically connect to a
true earth ground.
• Air compressors and hydraulic power supplies:
ground the equipment according to the manufac-
turer's recommendations.
• All air and fluid lines must be properly grounded.
• All electrical cables must be properly grounded.
• All persons entering the spray area: shoes must
have conductive soles, such as leather, or personal
grounding straps must be worn. Do not wear shoes
with non-conductive soles such as rubber or plastic.
• Object being sprayed: keep the workpiece hangers
clean and grounded at all times. Resistance must
not exceed 1 megohm.
18
• The floor of the spray area: must be electrically con-
ductive and grounded. Do not cover the floor with
cardboard or any non-conductive material which
would interrupt grounding continuity.
• Flammable liquids in the spray area: must be kept in
approved, grounded containers. Do not use plastic
containers. Do not store more than the quantity
needed for one shift.
• All electrically conductive objects or devices in the
spray area: including fluid containers and wash
cans, must be properly grounded.
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