Drive Hub; Oscillating Axle - Genie GS-3390 Service Manual

July 2007
REV B
10-2

Drive Hub

How to Remove a Drive Hub
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Section Two, Hydraulic Hose
and Fitting Torque Specifications.
1 Remove the drive motor. See 10-1, How to
Remove a Drive Motor and Brake .
2 Block the steer wheels and center a lifting jack
of ample capacity under the drive chassis at the
steer end of the machine.
3 Loosen the wheel lug nuts. Do not remove
them.
4 Raise the machine approximately
2 inches / 5 cm. Place blocks under the chassis
for support.
Crushing hazard. The chassis will
fall if it is not properly supported.
5 Remove the wheel lug nuts. Remove the tire
and wheel assembly.
6 Place a second lifting jack under the drive hub
for support and secure the drive hub to the
lifting jack.
7 Remove the drive hub mounting bolts that
attach the drive hub to the axle. Remove the
drive hub.
Crushing hazard. The drive
hub may become unbalanced and
fall if it is not properly supported
and secured to the lifting jack.
Torque specifications
Drive hub mounting bolts, dry
Drive hub mounting bolts, lubricated
Part No. 72863
10-3

Oscillating Axle

See 9-4, Oscillating Axle Option (after serial
number GS9004-41618)
120 ft-lbs
163 Nm
90 ft-lbs
122 Nm
GS-3390 • GS-4390 • GS-5390
Section 4 • Repair Procedures
NON-STEER AXLE COMPONENTS
4 - 121