Operation; Pressure Relief Procedure; Operating Checklist - Graco PRO Xs Instructions - Parts Manual

Operation

Pressure Relief Procedure

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.
1. 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, the air pressure is
needed at the regulator air inlet.
2. Turn off the fluid supply to the gun.
3. Trigger the gun into a grounded metal waste con-
tainer to relieve the fluid pressure.
4. If an air pilot fluid regulator is used, turn off the air
pressure at the regulator air inlet.
5. Relieve fluid pressure in the fluid supply equipment
as instructed in its instruction manual.
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.
313227E

Operating Checklist

Check the following list daily, before starting to operate
the system, to help ensure you of safe, efficient opera-
tion.
All operators are properly trained to safely
operate an automatic electrostatic air spray
system as instructed in this manual.
All operators are trained in the Pressure
Relief Procedure on page 15.
The warning sign provided with the gun is
mounted in the spray area where it can be
easily seen and read by all operators.
The system is thoroughly grounded and the
operator and all persons entering the spray
area are properly grounded. See Grounding
on page 12.
The condition of the gun's electrical compo-
nents has been checked as instructed in Elec-
trical Tests on page 22.
Ventilation fans are operating properly.
Workpiece hangers are clean and grounded.
All debris, including flammable fluids and rags,
is removed from the spray area.
All flammable fluids in the spray booth are in
approved, grounded containers.
All conductive objects in the spray area are
electrically grounded and the floor of the spray
area is electrically conductive and grounded.
The manifold exhaust tubes have been
checked for the presence of any fluid as
instructed in Check for Fluid Leakage on
page 21.
Operation
15