NOTE
The potentiometer, torque arm, and steer fork
insert cannot be disassembled. The
potentiometer shaft is permanently attached to
the steer fork insert.
Replacement
1.
Make sure the potentiometer is tight on the
torque arm. Thread the hex nut all the way on
the steer fork insert. Insert the hex screw
through the torque arm and thread the hex nut
onto the screw.
2.
Screw the steer fork insert into the steer fork
and the hex screw into the hydraulic motor
mount plate. Leave an 1/8” gap between the
torque arm and the hex screw head to allow
the torque arm to float, then tighten the hex
nut down to the hydraulic motor mount plate.
3.
Connect the 3-pin plug from the steer position
potentiometer. Connect the battery and turn
on the truck. Run Diagnostic Input Test 05.
The display will show the steer position
potentiometer voltage.
4.
If Step 1 of the Removal procedure was
performed, the steer wheel is in the full left
position. If not, rotate the tiller until the steer
wheel is in the full left position (visually
verify). Turn the steer fork insert so that the
voltage display is around 0.50V.
5.
Hold the steer fork insert so that the voltage
reading does not change, and tighten the hex
nut onto the steer fork shaft. Verify that the
voltage display did not change.
6.
Calibrate the steer position potentiometer (see
PROGRAMMING & DIAGNOSTICS).
7.
Install the top cover.
8.
Test the truck for proper operation.
E
lectric
C
ounterbalance
H
igh
O
utput
Steering
REV W1 11/02/99
4.6
