Pressure Relief Procedure - Graco GX21 Operation, Parts

Pressure Relief Procedure

Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized
fluid, such as skin injection or splashed
fluid, follow the Pressure Relief
Procedure whenever sprayer is stopped
and before sprayer is cleaned or checked,
and before equipment is serviced.
1. Engage the trigger lock. Always engage
the trigger lock when sprayer is stopped
to prevent the gun from being triggered
accidentally.
2. Turn ON/OFF switch to the OFF posi-
tion. Power button is not illuminated
when power is OFF.
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3. Turn pressure control to lowest setting.
4. Hold the gun firmly to a pail, point gun
into pail. Disengage the trigger lock and
trigger the gun to relieve pressure.
5. Engage the trigger lock.
6. Put drain tube into a pail and place
Prime/Spray valve in PRIME position
(drain) to relieve pressure.
7. If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a. VERY SLOWLY loosen the spray tip
guard retaining nut or the hose end
coupling to relieve pressure
gradually.
b. Loosen the nut or coupling
completely.
c. Clear airless hose or spray tip
obstruction.
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