JLG 18RS Service Manual - Manual (Page 46)

SECTION 3 - CHASSIS & TURNTABLE
3-8 – JLG Lift – 3121284
Installation
1. Position the hub onto the axle or spindle.
2. Coat the retaining bolts with JLG Threadlocker P/N
0100019 and secure the hub in place with the bolts.
Torque the bolts to 190 ft.lbs. (260 Nm).
3. Connect the hydraulic lines running to the drive brake as
tagged during Removal.
4. Align the splines of the drive motor shaft with the
splines in the drive brake and secure in place with the
retaining bolts. Torque the bolts to 37 ft.lbs. (51 Nm).
5. Install the Tire and Wheel assembly. Refer to Section 3.1,
Tires and Wheels.
3.6 DRIVE MOTOR
Cleanliness is extremely important when repairing these
motors. Work on clean surface!
Before disassembly, drain the oil from the motor and dry the
work bench.
Removal
1. Place a container under the drive motor to catch hydrau-
lic oil.
2. Tag and disconnect the hydraulic lines running to the
drive motor.
3. Pull the Drive Motor away from the drive brake.
Disassembly
Although not all drawings show the motor in disassembly
devise (vice with soft clamping jaws), it is recommended the
motor to be tightened during disassembly.
1. Unscrew the Drain plug with S6 Allen key and remove
the O-ring.
2. Place the motor in disassembly devise with output shaft
down.
3. Unscrew screws using a S17 torque wrench.
4. Remove end cover assembly.
5. Separate Valve Plate from Channel Plate and remove
Valve Drive.
6. Separate Channel Plate from Roll-gerotor set.
7. Remove O-ring 83x2 (2 pcs.), and balls (2 pcs.) from the
Channel Plate grooves.
8. Remove the roll-gerotor set carefully to prevent drop-
ping of rollers and rotor from stator. Do not dismount!