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First Edition • Third Printing
9-1
Drive Brake
How to Remove a Drive Brake
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 Block the steer wheels and center a lifting jack
under the drive chassis at the non-steer end.
2 Remove the cotter pin on the wheel castle nut.
Always use a new cotter pin when
installing a castle nut.
3 Loosen the wheel castle nut. Do not remove it.
4 Raise the machine 2 inches (5 cm) and place
blocks under the drive chassis for support.
Crushing hazard. The chassis will
fall if it is not properly supported.
5 Remove the wheel castle nut then remove the
wheel.
Part No. 41314
Non-steering Axle Components
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Section 7 • Repair Procedures
6 Disconnect the hydraulic hose from the brake
and plug it. Cap the fitting on the 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.
7 Support and secure the brake to a lifting jack.
8 Remove the brake mounting fasteners, then
remove the brake.
Crushing hazard. The brake may
fall if it is not properly supported
and secured to the lifting jack
when the brake mounting
fasteners are removed.
During assembly, be sure to use
anti-sieze or lightly grease the
brake shaft when installing the
wheel.
Castle Nut torque specifications
Castle nut torque, dry
Castle nut torque, lubricated
300 ft-lbs
406.7 Nm
225 ft-lbs
305 Nm
7 - 37
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