JLG 1230ES Service Manual - Manual (Page 50)

SECTION 4 - BASE COMPONENTS
4-14 – JLG Lift – 3121222
Wheel Drive Motor Assembly - Removal From
Machine
The electric wheel drive assemblies are mounted indepen-
tent of each other on the base frame at the front of the
machine.
The wheel drive assembly consists of an 24V DC electric
motor driving a 45.13:1 ratio gear box, the assembly also
included a friction disk parking brake assembly. This
brake assembly is mounted on the end of the drive motor
assembly.
1. Elevate the machine enough to remove the drive
wheel(s).
2. Before disconnecting machine power at the batter-
ies, power up the machine and turn the steering to
expose the back of the drive motor to be removed.
3. Now disconnect machine power at the quick-discon-
nect (short cable) on the machine right side batter-
ies.
4. Remove the drive wheel mounting lugs and remove
the wheel(s).
5. Disconnect the power/brake harness to the drive
motor to be removed at the power module.
6. Mark the position of and remove the tie straps hold-
ing the drive motor power harness to the steering
linkage. Pull the harness throught the base frame
until free.
7. Before removing the drive motor from the gear box,
remove the pipe plugs on the gear box cover (wheel
side) and drain the oil from the gear box.
8. Remove the two (2) long cap screws attaching the
drive motor to the spindle and gear box.
9. Carefully slide the drive motor assembly out of the
gear box/spindle assembly and place on work-
bench.
Wheel Drive Assembly - Removal
1. Drive Motor Assembly
2. Mounting Bolt Washers 3. Drive Motor Mounting Bolts
NOTE: Removal same for left and right drive motor.