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309224
Air Motor Service
Actuator Valve Service
Disassembly
1.
Remove the air motor cover (69).
2.
Remove the actuator valve plug (11) from the top
cap (5). Inspect the sealing gasket (15*) and
spring (16*) in place on the plug. If the gasket
needs replacement, thread it off the plug (11). See
Fig. 11.
3.
Pull the pin (12*) out of the top cap (5). Remove
the two o-rings (23*) from the pin.
4.
If it is necessary to remove the o-ring (24*) from
the actuator valve cavity, you must first remove the
top cap. See
Cylinder and Piston Service.
5.
Repeat for the bottom cylinder cap (4).
Reassembly
1.
If the o-ring (24*) was removed, it must be
installed from the inside of the top cap (5). Lubri-
cate the o-ring. See Fig. 11. Reinstall the top cap.
See
Cylinder and Piston Service.
2.
Install the two o-rings (23*) on the pin (12*).
Grease the pin and insert it in the top cap (5). The
long end must point toward the inside of the motor.
3.
Thread the gasket (15*) onto the plug (11). Grease
the spring (16*) and install it in the plug. Screw the
plug into the top cap (5) and torque to 60 to 80
in-lb (6.8 to 9.0 N-m).
4.
Repeat for the bottom cylinder cap (4).
5.
Replace the air motor cover (69).
