Clean Passages; Clean Muffler; Inspect The Piston - Graco Fusion A Series Instructions Manual

Maintenance

Clean Passages

If necessary, clean out passages in fluid housing and
handle with drill bits. Refer to T
diameter and location of passages. All drill bits are
available in an accessory kit see Accessories, page 42.
Table 3: Passage Diameters
Passage Description
Optional Air Inlet
Purge Air
Piston Air
Air Exhaust
Air Valve Bore
Cleanoff Air
Grease
Fluid Housing Purge Air
F . 2 Gun Handle Passages
IG
F . 3 Fluid Housing Passages
IG
28
3 and to F
ABLE IG
Diameter
Ref. Letter
in. (mm)
7/16, 1/8 (11.0, 3.1)
ZB
1/8 (3.1)
ZC
1/8 (3.1)
ZD, ZE
11/32, 1/8 (8.7, 3.1)
ZF
9/32 (7.1)
ZG
3/32 (2.35)
ZH
3/32 (2.35)
ZJ
5/32 (3.97)
ZK
ZE
ZD
ZC
ZG
ZF
ZB

Clean Muffler

Remove and clean muffler (E) with compatible solvent.
. 2 for

Inspect the Piston

1. Follow the Pressure Relief Procedure, page 19.
2. Disconnect air line (D) and remove fluid manifold
(M).
Fo
M
3. Follow the Remove Front End procedure, page 30.
4. Unscrew cylinder cap (5) and inspect o-ring (14).
5. Push piston shaft to remove piston (15).
6. Inspect piston o-ring (16) and shaft o-ring (17).
Replace o-rings if worn or damaged.
D
TI2554A
5
14
TI2430A
15
16
17
TI2431A
3A7314B