HOIST MOTOR ASSEMBLY
EQUIPMENT CONDITIONS: Hoist motor removed. (Refer to page 15-50.)
1. PREPARE HOIST MOTOR.
lifting the cam ring assembly, lightly
a. Match mark end cap (2) and body (21).
tap the outside of body while lifting
This will help in
b. Drain all fluid from the motor and thoroughly
removing the cam ring, rotor, vanes,
clean all exterior surfaces.
and springs as a unit.
Prepare a clean, lint-free surface on which to lay
Remove cam ring assembly (6) as unit (7), (8),
internal parts of hoist motor.
(9), and (10).
2. REMOVE END CAP (2).
4. DISASSEMBLE CAM RING ASSEMBLY.
a. Remove screws (1) and end cap (2) from body
The vanes are held against the cam
b. Remove and discard rubber seal ring (3) from
ring by tension from the springs in
end cap (2).
the rotor. If the rotor is pulled from
the cam ring with no protection,
Check needle bearing (4) in end cap (2). If worn
tension from the springs will throw
or damaged, replace it.
the vanes out in all directions. The
following procedure must be followed
3. REMOVE CAM RING ASSEMBLY (6).
when dis-assembling the rotor and
vanes from the cam ring.
a. Remove dowel pin (5) from cam ring assembly
b. Thread two 1/4-20 screws in two tapped holes
provided as puller holes in cam ring (7).