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Installation
Ground the System
WARNING
FIRE, EXPLOSION, AND
ELECTRIC SHOCK HAZARD
When operating the electrostatic device,
any ungrounded objects in the spray
area (such as people, containers, tools,
etc.) can become electrically charged.
Improper grounding can result in static
sparking, which can cause a fire, explo-
sion, or electric shock. Follow the
grounding instructions below.
The following grounding instructions are minimum re-
quirements 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.
1. Fluid Supply: Ground the fluid supply by connect-
ing a ground wire and clamp between the fluid
supply and a true earth ground. See your fluid
supply instruction manual for grounding instruc-
tions.
2. PRO 3500wb Electrostatic Air Spray Gun:
Install the red-colored Graco electrically conduc-
tive air hose between the gun and air supply line
and connect the air hose ground wire to a true
earth ground. Check the electrical grounding of the
gun as instructed on page 15.
3. Graco Waterborne Fluid Hose: The conductive
layer of the hose must be properly grounded by
correct installation as instructed on pages 12 to 13.
4. Voltage Isolation System: Ground the system
according to the manufacturer’s instructions.
5. All persons entering the spray area: Their
shoes must have conductive soles, such as
leather, or personal grounding straps must be
worn. Rubber or plastic soles are not conductive.
The operator must not wear gloves which insulate
the hand from the spray gun. The gloves must be
conductive or modified as shown on page 17.
6. Object being sprayed: Keep the workpiece
hangers clean and grounded at all times. Contact
points must be sharp points or knife edges.
7. The floor of the spray area: The floor must be
electrically conductive and grounded. Do not cover
the floor with cardboard or any non-conductive
material which would interrupt grounding continu-
ity.
8. All electrically conductive objects or devices
in the spray area: They must be properly
grounded.