Service and Repair Manual June 2021
Steer Axle Components
100 GS
â„¢
-84 • GS
â„¢
-90 Part No. 1306587GT
9-1
Yoke and Drive Motor
How to Remove the Yok e and Drive Motor
How to Remove the Yoke and
Drive Motor
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.
Note: When installing a steer yoke, Loctite® 243™
threadlocker must be applied to the retaining
fasteners securing the king pins. Torque to 44 ft-
lbs / 60 Nm.
1 Chock both sides of the wheels at the non-
steer end of the machine.
2 Center a lifting jack under the drive chassis at
the steer end of the machine.
3 Loosen the wheel lug nuts. Do not remove
them.
4 Raise the machine approximately 2 inches /
5 cm. Place blocks under the chassis for
support.
Crushing hazard. The chassis
will fall if not properly supported.
5 Remove the wheel lug bolts. Remove the tire
and wheel assembly.
6 Remove the hose clamps retaining fasteners
from the drive motor guard. Remove the hose
clamps.
7 Remove the retaining fasteners from the drive
motor guard. Remove the drive motor guard
from the yoke.
8 Tag, disconnect and plug the hoses from the
drive motor. Cap the fittings on the drive
motor.
Bodily injury hazard. Sprayi
ng
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.
9 Support and secure the yoke and drive motor
assembly to a lifting jack.
10 Remove the cotter pin from the tie rod clevis
pin.
Note: Always use a new cotter pin when installing
a clevis pin.
11 Remove the retaining fastener from the steer
cylinder rod end pivot pin. Remove the pivot
pin.
12 Remove the retaining fastener from the lower
yoke pivot pin.
13 Place a rod through the pin and twist to
remove the pin.
14 Repeat steps 11 and 12 for the upper yoke
pivot pin.
15 Remove the yoke and drive motor assembly
from the machine.
Crushing hazard. The yoke and
drive motor assembly may
become
unbalanced and fall if
not properly supported and
secured to the lifting jack when it
is removed from the machine.
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