Non-Steer Axle Components; Drive Motor And Brake - Genie GS-3390 Service Manual

Section 4 • Repair Procedures

Non-steer Axle Components

10-1

Drive Motor and Brake

How to Remove a Drive Motor
and Brake
Component damage hazard.
Repairs to the motor should only
be performed by an authorized
Sundstrand-Sauer dealer.
Component damage hazard. The
work area and surfaces where this
procedure will be performed must
be clean and free of debris that
could get into the hydraulic system
and cause severe component
damage. Dealer service is
recommended.
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 2, Hydraulic Hose and
Fitting Torque Specifications.
1 Block the steer wheels.
2 Tag, disconnect and plug the hydraulic hoses
from the drive motor and brake. Cap the fittings
on the drive motor and brake.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
4 - 120
3 Remove the drive motor mounting fasteners.
4 Slide the drive motor shaft out of the brake and
remove the drive motor from the machine.
5 Remove the brake from the drive hub.
Note: There are two O-rings on the drive motor
and brake assembly. One is installed between the
brake and drive hub and another between the
brake and drive motor. Be sure that both O-rings
are in place when installing the brake and drive
motor onto the machine.
Torque specifications
Drive motor mounting bolts, dry
Drive motor mounting bolts, lubricated
GS-3390 • GS-4390 • GS-5390
July 2007
REV B
75 ft-lbs
102 Nm
56 ft-lbs
76 Nm
Part No. 72863