Graco 3A4442B, Operation Manual

Page: 10 / 52

Preparation
10 3A4442B
Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
1. Turn ON/OFF switch to the OFF
position. Wait 7 seconds for power to
dissipate.
2. Engage trigger lock. Always engage the
trigger lock when sprayer is stopped to
prevent the gun from being triggered
accidentally by hand or if dropped or
bumped.
3. Turn pressure control to lowest setting.
Disengage the trigger lock.
4. Trigger the gun to relieve pressure.
5. Engage trigger lock.
6. Put drain tube in a pail. Turn prime valve
down. Leave prime valve in the down
(drain) position until you are ready to
spray again.
7. If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a. VERY SLOWLY loosen the tip
guard retaining nut or the hose end
coupling to relieve pressure
gradually.
b. Loosen the nut or coupling
completely.
c. Clear hose or tip obstruction.
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized
fluid, such as skin injection, splashed fluid
and moving parts, follow the
Pressure
Relief Procedure whenever sprayer is
stopped and before sprayer is cleaned or
checked, and before equipment is
serviced.
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