Clean Mixing Module - Graco GX-8 Operation, Parts, Service, Repair

17. Use screw and locknut to reinstall trigger
lever.

Clean Mixing Module

1. Flush gun (see Clean Spray Gun Proce-
dure, page 15).
2. Connect air supply to gun. OPEN safety
stop.
3. Remove air cap by hand.
F . 19: Unthread Cap from PCD Body
IG
4. Trigger gun and hold it to relieve pressure
on PCD retainer.
5. Turn PCD retainer counterclockwise and
remove.
6. Remove PCD from mixing module retainer.
To remove PCD that is stuck, set safety
stop to OPEN, depress and release gun
trigger to unseat it. CLOSE safety stop.
7. Remove mixing module retainer.
8. OPEN safety stop. Depress and release
gun trigger to unseat it. Remove mixing
311338B
module from end of valving rod. CLOSE
safety stop.
9. Inspect valving rod for damage and replace
as required. Use cloth soaked in gun
cleaner or steel wool to clean and remove
buildup of mixed material from rod.
If valving rod is replaced, reset forward
stop.
10. Clean mixing module.
Ensure cleanout tool size matches
module size used.
a. Insert cleanout tool into pin vise.
b. Use cleanout tool to clean module
ports. Make sure not to insert tool too
far, it will damage inside bore of module.
Use cotton swab soaked in gun cleaner
to clean bore of module.
F . 20: Clean Module Ports
IG
Repair
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