Operation
Pressure Relief Procedure
WARNING
INJECTION
HAZARD
T
o reduce the risk of serious injury
,
including fluid injection, splashing in the
eyes or on the skin, or injury from mov
-
ing parts or electric shock, always follow this proce
-
dure whenever you:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
install or clean the spray tips,
or shut off the pump.
1.
Engage the spray gun safety latch.
2. T
urn of
f the air to the pump.
3.
Close the bleed-type master air valve (required in
your system).
4.
Disengage the gun safety latch. Hold a metal part
of the gun or valve firmly to a grounded metal
waste container and trigger it to relieve the fluid
pressure. Engage the safety latch.
5.
Open the pump drain valve (required in your
system), having a container ready to catch the
drainage.
6.
Leave the drain valve open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above,
very slowly
loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually
, then loosen completely
. Now clear
the tip or hose.
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