Graco Inc. UNICARB Pro AA4500 - Manual (Page 18)

18 308936
Daily Gun Care, Flushing, and Cleaning
General System Maintenance
1. Clean the fluid and air line filters daily.
2. Check all of the work hangers for material build-up;
clean them if necessary.
3. Check for any fluid leakage from the gun and fluid
hoses. Tighten fittings or replace equipment as
needed.
4. Flush the gun before changing colors and when-
ever you are done operating the gun.
WARNING
ELECTRIC SHOCK HAZARD
To reduce the risk of fire, explosion, or
electric shock, be sure the ES ON-OFF
lever is turned to OFF before flushing
the gun.
1. Follow the Pressure Relief Procedure
Warning on page 10.
2. Make sure the ES ON-OFF lever is
turned to OFF and the trigger safety
latch is locked before proceeding.
Fig. 2 02002A
ES
OFF locked
3. Pointing the gun down, unscrew and
remove the retaining nut (8), tip guard
(2), air cap (1) and fluid tip (9).
You may have to turn the air cap with the tip guard
to remove the air cap from the gun. Set these
parts aside.
Fig. 3 02004A
8
2
1
9
4. Make sure the air and coating supply is
turned off. Turn on the solvent supply.
Fig. 4
01999A
5. Flush the Spray Gun.
Unlock the trigger safety latch, point the gun down
into a grounded metal container, and flush the gun
with solvent until it is clean. Use the lowest pos-
sible fluid pressure when flushing.
Fig. 5 02005A