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17
Pressure Relief Procedure
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 serious injury. To reduce the risk of
an injury from injection, 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,
install or clean the spray tip.
1.
Set the operator switch to standby
.
2.
Shut off the control purge
air (J
-1
).
J
-1
7511A
Air Shutoff Valve
3.
Shut off the air at the spray gun.
4.
Relieve fluid and air pressure at the component
and solvent feed pumps or pressure pots, as
explained in their separate instruction manuals.
5.
Set the operator switch to mix
.
6.
Hold a metal part of the
spray gun firmly to the side
of a grounded metal pail,
and trigger the gun to
relieve fluid pressure.
ÄÄÄ
ÄÄÄ
7.
Set the operator switch to standby
.
8.
If you suspect that the spray tip or hose is com-
pletely clogged or that pressure has not been fully
relieved after following the steps above
, v
ery
slowly loosen the hose end coupling and relieve
pressure gradually, then loosen the coupling
completely. Now clear the tip or hose obstruction.
