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Grounding
Grounding
See illustration on next page.
This equipment must be grounded to reduce the
risk of static sparking and electric shock. Electric
or static sparking can cause fumes to ignite or
explode. Improper grounding can cause electric
shock. Grounding provides an escape wire for the
electric current.
Electrical Control Box
The electrical control box has two ground points.
Both connections must be made.
• Connectthegroundwire(Y)tothegroundscrew
on the electrical control box. Connect the clamp
end to a true earth ground.
• The power supply must be grounded according to
local codes. Connect the power supply ground
wire to the Ground terminal in the electrical control
box. See Electrical Connections, page 25.
Figure 15 Ground Screw and Power Switch
Fluid Supply Container
Follow local code.
Color Change
Module
Connect a ground wire from the color change module
to a true earth ground.
Intrinsica
lly safe color change modules located in the
hazardous
area must be connected to a true earth
ground in t
he hazardous area.
Feed Pumps or Pressure Pots
Connect a ground wire and clamp from a true earth
ground to the pumps or pots. See pump or pressure
pot manual.
Air and F
luid Hoses
Use grounded hoses only.
Spray Gun
Follow
the grounding instructions in your gun manual.
• Non-Electrostatic: Ground the spray gun through
connection to a Graco-approved grounded fluid
supply hose.
• Electrostatic: Ground the spray gun through
connection to a Graco-approved grounded air
supply hose. Connect the air hose ground wire to
a true earth ground.
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