HiP T Series, Instructions - Parts Manual, Page: 17 / 36

Repair - Pneumatic Motor
3A6823A 17
Repair - Pneumatic Motor
Pneumatic Valve
Replace Complete Pneumatic Valve
1. Stop the pump and perform the Pressure Relief
Procedure , page 10.
2. Disconnect the pneumatic line to the motor.
3. See the figure on page 26. Use a 10 mm socket
wrench to remove four screws (218). Remove the
pneumatic valve (217) and gasket (216*

).
4. To repair the pneumatic valve, go to Disassemble
the Pneumatic Valve, page 17. To install a replace-
ment pneumatic valve (217), continue with step 5.
5. Align the new pneumatic valve gasket (216*

) on
the manifold, then attach the pneumatic valve (217).
Torque screws (218) to 95-105 in-lb (11-12 N•m).
6. Reconnect the pneumatic line to the motor.
Replace Seals or Rebuild Pneumatic Valve
Inspect and replace seals and worn parts while disas-
sembling and reassembling the pneumatic valve on the
following pages.
Use F
IG
. 6 and the following table to identify the kits
needed for replacements:
Disassemble the Pneumatic Valve
1. Perform steps 1-3 under Replace Complete Pneu-
matic Valve, page 17.
2. See F
IG
. 6. Use a T10 star screwdriver to remove
two screws (309†

). Remove the valve plate
(305

), cup (312

), and spring (311

).
3. See F
IG
. 6. Remove the snap ring (310

) from
each end. Use the piston (302

) to push the end
caps (307

) out of the ends. Remove end cap
o-rings (306†

).
4. Remove the piston (302

). Remove the u-cup seals
(308†

) from each end, and the detent assembly
(303

) and detent cam (304

) from the center.
Symbol Kit Description
† Pneumatic Valve Seal Kits. See page 29.

Pneumatic Valve Repair Kits. See page 29.

Pneumatic Valve End Cap Kits. See
page 29.