Pressure Relief Procedure - Graco 965022 Instructions Manual

Pressure Relief Procedure

This procedure describes how to relieve pressure for
the pistol grip flow gun. Use this procedure whenever
you shut off the flow gun and before checking or
adjusting any part of the gun, to reduce the risk of
serious injury.
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause a serious injury. To reduce the risk
of an injury from injection, splashing fluid, moving
parts, or electric shock follow the Pressure Relief
Procedure whenever you:
D shut off the sprayer,
D are instructed to relieve the pressure,
D stop dispensing,
D check or service any of the system equipment,
D or install or clean the nozzle.
Installation
1. Engage the gun safety latch.
2. Shut off the fluid supply to the flow gun.
3. Disengage the gun safety latch.
4. Place a waste container beneath the nozzle to
catch the drainage.
5. Actuate the flow gun. Wait until the fluid stops
flowing from the hose and gun.
6. Shut off power to the fluid supply system.
If you suspect that the nozzle or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
nozzle or hose end coupling to relieve pressure gradu-
ally, then loosen completely. Now clear the nozzle or
hose.
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