INSTALL
CAUTION
Ensure that the drive tire and notch of the lower
pinion shaft are aligned in the steer swivel (con-
trol handle) are aligned in the "straight ahead" po-
sition.
Ensure that the steer swivel (control handle) and
notch of the upper pinion shaft are aligned in the
"straight ahead" position.
1.
Align the notch of the upper and lower articulated shaft
pinions in the "straight ahead" position.
2.
Install the articulated shaft onto the lower pinion shaft.
Install the capscrew into the lower clevis of the articu-
lated shaft next to the flat of the pinion to secure. In-
stall the lock nut and torque to 14 to 20 N•m (10 to
15 lbf ft).
3.
Lift the steer support (control arm end) up so that it
pivots on the two upper capscrews. Position the articu-
lated shaft to the pinion.
4.
Lower the steer support (control arm end) while guid-
ing the articulated shaft onto the pinion shaft.
5.
Install the remaining two lower capscrews, washers,
and nuts securing the steer support to the frame.
Tighten all four capscrews to 41 to 47 N•m (30 to
35 lbf ft). Remove the sling and lifting device.
6.
Install the capscrew into the clevis of the articulated
shaft next to the flat of the pinion to secure. Install the
lock nut and torque to 14 to 20 N•m (10 to 15 lbf ft).
7.
Install the dash to the steer support as removed. Secure
using two screws. Refer to
Electrical System
2200SRM1640.
8.
Replace the drive unit compartment covers as re-
moved. Reconnect the battery and turn the key switch
to the
ON
position. Test for proper operation.
Steer Motor Assembly
REPAIR
The steer motor assembly consists of three primary sec-
tions: the electric motor, the gearbox, and the steer motor
gear. Repair procedures vary greatly depending on what
components are being serviced. If only the electric motor or
the steer motor gear is to be replaced, they may simply be
replaced on the assembly while installed to the drive unit.
See Steer Motor, Replace and Steer Motor Gear, Replace.
However if the gearbox or total assembly replacement is
necessary, the steer motor assembly and lower articulating
shaft bracket and gear must be removed from the drive unit.
This requires very specific alignment when reinstalling. See
Gearbox/Complete Assembly, Replace. Remove only com-
ponents necessary to safely complete repairs. In some in-
stances, total replacement may be preferred over compo-
nent repair. Discuss repair options with your supervisor.
Begin all repairs to the steer motor assembly with the fol-
lowing procedures:
1.
Turn the key switch to the
OFF
position and discon-
nect battery. Remove the drive unit compartment cov-
ers. See GeneralGeneral.
2.
Discharge the capacitor. See Special Precautions in
this section.
Steer Motor, Replace
Refer to Figure 14 for the following procedures.
1.
Tag and disconnect all power cables and wiring from
the steer motor.
2.
Remove the two capscrews and washers securing the
motor to the gearbox. Lift the motor from the gearbox
and remove from the lift truck.
3.
Position the new steer motor on to the gearbox as re-
moved.
4.
Install two screws and washers securing electric motor
to gearbox.
NOTE:
Refer to tags on cables for proper reinstallation.
5.
Install wiring and cables to steer motor as removed.
6.
Calibrate the power assist steering sensor. See Calibra-
tion in this section.
Steer Motor Gear, Replace
Refer to Figure 15 for the following procedures.
Steer Motor Assembly
1600 SRM 1637
14
