Usage:
Introduction
New 9W4119 and 9W4120 Rotary Actuator Groups are available from the Parts Department as replacements for 9W4033 and 9W4034 Rotary Actuator Groups, respectively, (which replaced 9G9437 and 6T3654, respectively). Installation of the new actuator group will increase the actuator shift capacity. Individual parts are also available for modification of the existing actuator.
Reference: Service Manual; Parts Book.
Modification Procedure
1. If equipped with Type A:
a). If actuator is leaking and there is no other damage, install a 9W3715 Spacer in the cover and body assembly at the dimensions shown - Type B.
b). If the cover only needs replacing, install new cover, spacer and bearing. Install a spacer in the body.
c). If the body needs replacing, install new actuator group - Type C.
2. If equipped with Type B:
a). If actuator is leaking, install new actuator assembly - Type C.
b). If cover only needs replacing, install new cover, spacer and bearing - Type B.
c). If body assembly needs replacing, install new actuator group - Type C.
NOTE: Dry ice must be used to shrink the spacer before installation.
NOTE: Do not tighten bolts (1) until cover assembly (2) is assembled and bolts (3) are tightened. Rotor must turn freely by hand.
3. Tighten bolts (3) to a torque of 30 ± 4 N·m (22 ± 3 lb ft). Tighten bolts (1) to a torque of 15 ± 3 N·m (11 ± 2 lb ft).