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Operation
Pressure Relief Procedure
WARNING
SKIN INJECTION HAZARD
Fluid under high pressure can be in-
jected 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:
D
are instructed to relieve the pressure,
D
stop spraying,
D
check or service any of the system equipment,
D
or install or clean the spray tips.
1.
Shut off the air to the pump. Disconnect the air
hose to be sure pressure is relieved in the air
motor.
2.
If the pump or hose is not clogged and the hose is
not closed off, fluid pressure will be relieved.
3.
If the pump or hose is clogged, wrap a heavy cloth
around the hose coupling at the pump outlet.
Slowly unscrew the hose to relieve pressure
gradually and reduce splashing.
4.
If the clog does not appear to be in the hose,
clamp the pump outlet housing in a vise, and
hammer the intake valve lug nut to unscrew it. This
should relieve pressurized material trapped in the
pump.
