Graco HydroShield WABH00, Instructions - Parts Manual

Page: 30 / 142

Operation
Pressure Pressure Pressure Relief Relief Relief Procedure Procedure Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until pressure
is manually relieved. To help prevent serious
injury from pressurized fluid, such as skin injection,
splashing fluid, and moving parts, follow the
Pressure
Pressure Pressure Relief Relief Relief Procedure Procedure Procedure when you stop spraying
and before cleaning, checking, or servicing the
equipment.
1. Release the gun trigger and turn off electrostatics
by disabling the electrostatic request signal.
2. Follow the Fluid Voltage Discharge and
Grounding Procedure, page 29 .
3. Push the Stop button on the control
interface to change to Off mode. See
Control Interface, page 36 .
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 fluid pump in the
isolation system
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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