Pressure Relief Procedure; Operation - Graco 309674M Repair Manual

Operation

Pressure Relief Procedure

To reduce risk of injury from injection, follow this proce-
dure whenever you are instructed to relieve pressure,
stop spraying, service equipment or install or clean
spray tip. Read warnings, page 3.
1. Turn power switch OFF and unplug power cord.
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309674M
2. Turn pressure to lowest setting. Hold gun to side of
grounded metal flushing bucket. Trigger gun to
relieve pressure, turn prime valve down.
-
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3. Engage gun trigger lock if unit is being shut down or
left unattended.
Leave Spray - Prime/Drain valve in the
PRIME/DRAIN position until you are ready to spray
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again.
If you suspect the spray tip or hose is clogged or that
pressure has not been fully relieved after following the
steps above, VERY SLOWLY loosen tip guard retaining
nut or hose end coupling to relieve pressure gradually,
then loosen completely. Clear hose or tip obstruction.
Operation
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FLUSH
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