Steer Axle Components; Yoke And Drive Hub - Genie S-80 Service Manual

February 2017
11-1

Yoke and Drive Hub

How to Remove the Yoke and
Drive Hub Assembly
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque
Specifications.
1 Remove the pin retaining fasteners from both
the steer cylinder and the tie rod cylinder pivot
pins. Remove the pins.
2 Tag, disconnect and plug the hydraulic hoses
from 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.
3 Loosen the wheel lug nuts. Do not remove
them.
4 Block the non-steer wheels, and center a
lifting jack of ample capacity under the steer
axle.
5 Raise the machine approximately 6 inches /
15 cm and place blocks under the chassis for
support.
Part No. 1259369GT

Steer Axle Components

6 Remove the lug nuts. Remove the tire and
wheel assembly.
7 Remove the hydraulic hose clamp retaining
fastener from the top of the yoke pivot pin.
8 Remove the drive motor mounting fasteners.
9 Slide the drive motor shaft out of the drive hub
and remove the drive motor from the machine.
10 Remove the pin retaining fasteners from the
upper and lower yoke pivot pins.
11 Support and secure the yoke and drive hub
assembly to a lifting jack.
12 Use a slide hammer to remove the upper yoke
pivot pin. Use a soft metal drift to drive the
lower yoke pivot pin down and out.
13 Place the yoke and drive hub assembly on a
flat surface with the drive hub facing down.
14 Remove the drive hub mounting fasteners that
attach the drive hub to the yoke. Remove the
yoke from the drive hub. Refer to
Specifications, Machine Torque
Specifications.
Note: Replace the thrust washer when installing the
yoke and drive hub assembly onto the axle.
S-80 • S-85 • S-80X
Service Manual
Crushing hazard. The yoke and
drive hub assembly could
become unbalanced and fall
when the yoke pivot pins are
removed if not properly
supported and secured to the
lifting jack.
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