2.
Jack the rear of the truck just until the steer
wheel can turn. Rotate the steer fork so the
axle nut is visible.
3.
Remove the axle nut. Rotate the steer fork
180° and remove the axle.
4.
Raise the truck until the wheel can be
removed.
NOTE
Inspect the steering axle, bearings, and seals
for wear or damage. Replace all worn or
damaged parts prior to replacing the steer
wheel assembly into the steer fork.
Replacement
1.
Rotate the steer fork so that the larger hole
with the lock bar above is visible.
2.
Position the steer wheel assembly in the steer
fork. Lower the truck to align the center hole
of the steer wheel assembly with the axle
holes in the steer fork.
3.
Install the steer axle through the steer fork
and the steer wheel assembly.
4.
Rotate the steer fork 180° to install the axle
nut.
NOTE
Do not over tighten the axle nut on the
steering axle. This nut serves as a bearing
tightening adjustment. The nut should be
tightened enough to remove any lateral play
yet allow the steer wheel assembly to turn
freely. If the nut is over tightened or under
tightened, the bearings and the steer axle may
be damaged.
7.
Tighten the axle nut and install the cotter pin.
8.
Using a grease gun, fill the cavity of the steer
wheel with grease. The grease fitting is in the
end of the axle.
9.
Lower the truck completely, connect the
battery and test the truck for proper operation.
Changing Steer Tires
1.
Remove the steer wheel assembly.
NOTE
The capacity of the press must be
approximately 40 tons.
2.
Remove the seals and bearings.
3.
Align the old wheel and tire on top of the new
tire. Press the wheel out of the old rim and
tire into the new one.
4.
Install the bearings and seals.
5.
Install the steer wheel assembly.
Steer Position Potentiometer
Removal
1.
Go into Diagnostic Output Test 05 (refer to
Programming & Diagnostics). Rotate the tiller
so that the voltage reading decreases until the
steer fork hits the stop.
2.
Disconnect the battery and discharge the
capacitors.
3.
Remove the top cover.
4.
Disconnect the 3-pin connector between the
steer position potentiometer and the wiring
harness.
5.
Loosen the nut (Item 23 Fig 4.1) and remove
the hex screw holding the potentiometer
mounting bracket to the hydraulic motor
mounting bracket.
6.
Loosen the hex nut (Item 44 Fig 4.1) on the
steer fork insert, and unscrew the insert to
remove the steer position potentiometer
assembly.
E
lectric
C
ounterbalance
H
igh
O
utput
Steering
REV W1 11/02/99
4.5
Figure 4.1 - Steer Position Potentiometer
