Pressure Relief Procedure - Graco HydroShield WMBL00 Instructions - Parts Manual

Operation
Pressure Relief Relief Procedure Procedure
Pressure Pressure Relief Procedure
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as splashing in the
eyes or on skin or from moving parts, follow the
Pressure Relief Relief Procedure Procedure when you stop spraying
Pressure Pressure Relief Procedure
and before cleaning, checking, or servicing the
equipment.
1. Release the gun trigger and turn off electrostatics
by turning the ES ON/OFF valve on the back of
the handle to the OFF position.
2. Follow the Fluid Voltage Discharge and
Grounding Procedure, page
3. Push the Stop button
interface to change to Off mode. See
Control Interface, page
4. Turn off the air supply and fluid supply to the
system.
5. Trigger the gun into a grounded metal waste
container to relieve the fluid pressure in the gun,
the gun fluid hose, and the isolation fluid pump
(K).
30
29.
on the control
36.
6. Relieve fluid pressure in the fluid supply unit as
instructed in your fluid supply unit manual.
7. If the objective is to shut down and then service
the system, relieve any residual pressure in the
two flexible fluid lines between the inlet valves (J)
and the isolation fluid pump (K).
Note
The contents of the isolation fluid pump
(K) may spill into the cabinet at this
point. If the pump has been emptied, the
volume of fluid in the lines is small and
only a small amount of fluid may spill out.
a. To relieve the fluid pressure between the
fluid valve (J) and the isolation valve (G),
carefully loosen one of the swivel fittings.
b. To relieve the fluid pressure between the
isolation valve (G) and the isolation fluid
pump (K), carefully loosen one of the swivel
fittings.
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