20
309303
Service
Shaft Repair
Tools Required
D
Needlenose pliers
D
O-ring pick
D
Retaining ring removal tool
D
Vise with soft jaws
Disassembly
NOTE:
Shaft Repair Kit 245068 is available. Parts
included in the kit are marked with a star, for example
(2
l
). Use all the parts in the kit for the best results.
1.
Remove the fluid covers. See page 14. Remove
the side cover (31) and felt dampener (29).
2.
Disassemble the air valve. See page 18.
3.
Remove the diaphragms (6). See page 17.
4.
Remove the retaining rings (4) from the shaft (5).
See Fig. 8.
5.
Slide the shaft (5) out of the center housing (1).
Remove the valve carriage (3) from the housing.
6.
Remove the o-rings (2) from the shaft (5).
CAUTION
Do not grip the shaft with tools that can scratch or
damage the shaft, such as wrenches or pliers.
7.
If you could not remove one diaphragm from the
shaft,
place the shaft in a vise with soft jaws.
Unscrew the remaining diaphragm (6) from the
shaft (5) by hand.
8.
Clean all parts and inspect for wear or damage.
Replace parts as needed.
Reassembly
1.
Screw one diaphragm (6) into the shaft (5
l
)
handtight.
2.
Grease the o-rings (2
l
) and install them on the
shaft (5
l
).
3.
Place the valve carriage (3) in the center housing
(1). Grease the shaft (5
l
) and slide it through the
center housing and valve carriage.
4.
Install the retaining rings (4
l
) on the shaft (5
l
).
5.
Screw the second diaphragm (6) into the shaft
(5
l
) handtight.
6.
Reassemble the air valve and carriage (see page
18), using the new o-rings (8
l
, 10
l
, 14
l
, 15
l
)
and gasket (16
l
) included in the shaft repair kit.
7.
Replace the ball check seals (24
l
) with the new
seals in the kit.
8.
Reinstall the fluid covers. See page 14.
