Graco Fusion CS Series Instructions Manual page 42

Repair
5. Push piston shaft to remove piston (4b).
Inspect piston o-ring (4c) and shaft o-rings
(4a).
F . 60
IG
6. Remove dosing piston.
a. Use supplied screw driver to remove
spiral retaining ring (4g).
b. Use screw driver to push dosing piston
(4e) out back of piston (4b) through
access hole on front side.
7. Clean and inspect o-rings on dosing piston
(4e). Clean dosing bore in piston (4b) with
a nylon brush and compatible solvent.
8. Lubricate dosing piston (4e) o-rings with
ClearShot Liquid prior to reassembly.
9. Liberally lubricate piston o-ring (4c) and
lightly lubricate shaft o-rings (4a).
10. Reinstall retaining ring (4g). Press it into
groove of dosing piston (4e).
42
11. Reinstall piston. Shaft is keyed for proper
assembly. Push firmly to seat piston.
4b
4c
4a
TI12101a
F . 61
IG
12. Install variable flow adjustment knob (X).
F . 62
IG
13. Attach Front End, page 36.
14. Attach fluid manifold (M).
15. Install ClearShot Liquid cartridge. See
ClearShot Liquid Cartridge
Installation/Removal, page 22.
16. Connect air. Return gun to service.
TI12102a
X
TI12100a
312666W