Section 4 • Repair Procedures
REV A
September 2016
Part No. 227123 GRC 4 - 25
How to Remove a Drive Motor
1 Block the wheels at the non-steer end of the
machine.
2 Remove the cotter pin from the wheel castle nut
of the motor to be removed at the steer end of
the machine.
Note: Always replace the cotter pin with a new one
when removing the castle nut.
3 Loosen the wheel castle nut. Do not remove it.
4 Center a lifting jack under the drive chassis at
the steer end of the machine.
5 Raise the machine approximately
2 inches / 5 cm. Place blocks under the chassis
for support.
Crushing hazard. The chassis
could fall if not properly supported.
6 Remove the wheel castle nut. Remove the
wheel.
7 Tag, disconnect and plug the hydraulic hoses
on the drive motor. Cap the fittings on the drive
motor.
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.
Component damage hazard.
Hoses can be damaged if they are
kinked or pinched.
8 Remove the drive motor mounting fasteners.
Remove the motor.
Torque specifications
Drive motor mounting fasteners, dry 75 ft-lbs
101.7 Nm
Drive motor mounting fasteners, lubricated 56 ft-lbs
76.3 Nm
STEER AXLE COMPONENTS
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