Pressure Relief Procedure - Graco WB3000 Instructions - Parts Manual

Operation

Pressure Relief Procedure

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 Relief Procedure when you stop spraying
and before cleaning, checking, or servicing the
equipment.
1. Turn OFF (O) the ES On/Off switch.
2. Follow the Fluid Voltage Discharge and
Grounding Procedure, page
3. Engage the trigger lock.
4. Turn off the air bleed valves to the fluid source
and to the gun.
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25.
5. Disengage the trigger lock.
6. Trigger the gun into a grounded metal waste
container to relieve the fluid pressure.
7. Engage the trigger lock.
8. Open the pump drain valve, having a waste
container ready to catch the drainage. Leave
the pump drain valve open until you are ready
to spray again.
9. If the spray tip or hose is completely clogged or
pressure is not fully relieved, slowly loosen the
hose end coupling. Now clear the spray tip or
hose.
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