Non-Steering Axle Components; Drive Motor; Torque Hub - Genie S-80 Service Manual

Service Manual - First Edition

Non-steering Axle Components

17-1

Drive Motor

Component damage hazard.
Repairs to the motor should only
be performed by an authorized
Sundstrand-Sauer dealer.
How to Remove a Drive Motor
A drive motor can only be removed from the inside
of the chassis.
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.
1 Disconnect the hydraulic hoses from the drive
motor and plug them.
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.
2 Remove the drive motor mounting bolts.
3 Slide the drive motor shaft out of the brake and
then remove it.
Torque specifications
Drive motor mounting bolts
Part No. 34032
17-2

Torque Hub

How to Remove a Drive
Torque Hub
1 Remove the drive motor. See 17-1, How to
Remove a Drive Motor.
2 Disconnect the hydraulic hose from the brake
and plug it. Then remove the hydraulic fitting
and the bleed valve.
3 Loosen the wheel lug nuts. Do not
remove them.
4 Center a lifting jack under the non-steering
axle. Raise the machine and place blocks
under the drive chassis to support it.
5 Remove the wheel lug nuts, then the tire and
wheel assembly.
6 Place a second lifting jack under the torque hub
for support.
7 Remove the bolts that attach the torque hub to
the chassis, then remove the torque hub.
Torque specifications
Lug nut (dry)
Lug nut (lubricated)
75 ft-lbs
Drive torque hub mounting bolts
102 Nm
Drive motor mounting bolts
Genie S-80 & Genie S-85
Section 7 - Repair Procedures
Crushing hazard. The torque
hub will fall if it is not properly
supported when the mounting
bolts are removed.
420 ft-lbs
569.5 Nm
320 ft-lbs
433.9 Nm
120 ft-lbs
163 Nm
75 ft-lbs
102 Nm
7 - 55