Operation
309457G
21
Operation
Fluid Voltage Discharge and
Grounding Procedure
NOTE: An accessory grounding rod, part No. 210084, is
available to discharge any voltage remaining on a sys-
tem component. Contact your Graco distributor to order.
1.
Turn off the turbine air to all spray guns connected
to the isolated fluid supply.
2.
Discharge the voltage at the voltage isolation sys-
tem by following the procedure specified in the volt-
age isolation system instruction manual.
3.
Touch the electrode of the gun with a grounded rod
to make sure the voltage has been discharged. If
you see an arc, verify that the electrostatics are
turned off or see Electrical Troubleshooting on
page 38 or the voltage isolation system manual for
other possible problems. Resolve the problem
before proceeding.
Pressure Relief Procedure
1.
Follow the Fluid Voltage Discharge and Ground-
ing Procedure, on page 21.
2.
Relieve fluid pressure in the fluid supply and voltage
isolation system as instructed in their instruction
manuals.
3.
Turn off all the air to the spray gun except the cylin-
der air, which triggers the gun. If an air pilot fluid
regulator is used in the system, air pressure is also
needed at the regulator air inlet.
NOTE: The air shut-off device must bleed the air out of
the system.
4.
Trigger the gun into a grounded metal waste con-
tainer to relieve the fluid pressure.
5.
Turn off all remaining air supplies to the gun.
6.
Turn off the main air supply by closing the
bleed-type master air valve on the main air supply
line. Leave the valve closed until you are ready to
spray again.
WARNING
Electric Shock Hazard
The high voltage fluid supply is charged
with high voltage until the voltage is dis-
charged. Contact with the charged compo-
nents of the isolation system or spray gun
electrode will cause an electric shock. To avoid an
electric shock, follow the Fluid Voltage Discharge
and Grounding Procedure:
•
when instructed to discharge the voltage
•
before cleaning, flushing, or servicing the system
equipment
•
before approaching the front of the gun
•
or before opening the safety fence or enclosure
for the isolated fluid supply.
WARNING
Pressurized Equipment Hazard
The system pressure must be manually
relieved to prevent the system from starting
or spraying accidentally. To reduce the risk
of an injury from electric shock, accidental spray from
the gun, splashing fluid, or moving parts, follow the
Pressure Relief Procedure whenever you:
•
are instructed to relieve the pressure
•
stop spraying
•
check or service any of the system equipment
•
or install or clean the fluid nozzle.
Summary of Contents for PRO Auto Xs
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