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Air or Electric Motor Removal
NOTE: Agitators with hydraulic motors are direct
drive, and do have not reducers. See Hydraulic
Motor Removal and Replacement .
1. Make sure power is disconnected from the unit
(see Power Connection ).
2. Remove the agitator (see Agitator and Shaft
Removal). Place the agitator on a clean, level
surface capable of supporting its weight.
NOTE: The gear housing is filled with grease, which
may be in a liquid state. To prevent spillage, secure
the gear housing in an upright position when removing
the motor from the gear housing.
3. Remove the four socket head cap screws (60)
holding the bearing housing (36) and gear housing
(21) to the motor (101). See Fig. 8.
4. Lift the motor (101), drive coupling (102), and sun
gear (9) off the gear housing (21) and gear carrier
assembly (1).
5. If replacing the motor:
a. Carefully measure and record the dimension
from the motor face to the opposite side of the
sun gear. This dimension is required for
reassembly.
b. Remove the drive coupling (102) and sun gear
(9) as a unit from the old motor shaft. Inspect
the sun gear, and replace if necessary.
c. Unpack the new motor.
d. Inspect the O-ring (23) and replace if neces-
sary (part. no. 51A026).
e. Place the drive coupling and sun gear as a unit
onto the new motor shaft. Set the elevation of
the sun gear and coupler from the motor as
shown in Fig. 7 (use the dimension recorded in
step 5.a, or nominal, as shown).
6. If replacing the gear carrier assembly, continue
with Gear Carrier Assembly Replacement.
Otherwise, see Air or Electric Motor Replace-
ment.
12
310500
Service
3.27–3.28"
(83–83.3mm)
Fig 7
101
61
60
Fig 8
SUN GEAR (9)
DRIVE
COUPLER
(102)
1/16" min.
MOTOR (101)
101
23
21
102
9
36
1
70
72
75
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