Air Motor Service
Actuator Valve Service
Disassembly
1.
Remove the actuator valve plug (11) from the top
cap (3). 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.
2.
Pull the pin (12*) out of the top cap (3). Remove
the two o-rings (23*) from the pin.
3.
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.
4.
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 (3). 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 (3). 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 (3) and torque to 60 to 80
in-lb (6.8 to 9.0 N-m).
4.
Repeat for the bottom cylinder cap (4).