Flush Gun - Graco GX-8 Operation, Parts, Service, Repair

4. Attach service block of gun service kit to
spray gun, and then tighten using 5/16 in.
nut driver.
5. Pressurize service kit container up to 100
psi. DO NOT EXCEED 100 psi (0.7 MPa, 7
bar).
6. Clean gun:
a. Set safety stop to OPEN.
b. Open either manual valve on service
block.
c. Trigger gun and gun service kit simulta-
neously with gun aimed into waste con-
tainer.
d. Release both triggers and close manual
valves on service block.
e. Repeat procedure for other side of gun.
f. After initial cleaning, remove air cap,
PCD retainer, and PCD. Flush a second
time to ensure thorough cleaning.
7. CLOSE safety stop.
8. Disconnect air supply from gun.
9. Remove service block of gun service kit
from gun.
16
10. Clean screens, check valves and screen
screw (see Service Screen Screw, page
17.
Inspect air cap, PCD, mixing module, and
gun block for build up of material and clean
as required.
Do not use metal cleaning devices to clean
plastic components.

Flush Gun

To avoid static sparking that may result in fire
or explosion, ensure all equipment in flushing
procedure is grounded. Do not flush on or
near foamed or coated surfaces.
1. CLOSE safety stop.
2. Close both manual valves.
3. Loosen B-Screen screw and then remove
by hand.
4. Use flush can to thoroughly flush screen
screw and screen screw cavity.
5. Loosen A-Screen screw and then remove
by hand.
6. Use flush can to thoroughly flush screen
screw and screen screw cavity.
7. Service gun, see Maintenance proce-
dures, page 15.
Maintenance
311338B