Trigger Lock - Graco 390 Instructions Manual

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.
Identify Needle and Flange Bearings in a Housing
MOTOR
SIDE
MOTOR
SIDE
3A5265A

Trigger Lock

Always engage the trigger lock when sprayer is
stopped to prevent the gun from being trig-
gered accidentally by hand or if dropped or
bumped.
NEEDLE BEARINGS
FLANGE BEARINGS
Pressure Relief Procedure
ti24612a
DRIVE
HOUSING
SIDE
DRIVE
HOUSING
SIDE
ti31676a
3