Drive Axle, Speed Reducer, and Differential Repair
1400 SRM 575
1.
BEARING CAP
2.
ALIGNMENT MARKS
Figure 14. Bearing Caps Installation
Figure 15. New O-Rings Installation
19. Install the capscrew, washer, isolators, and
spacer between the right-hand axle mount
and the speed reducer housing. See Figure 6.
Tighten the capscrew to 165 N•m (122 lbf ft).
20. Install a new O-ring on the flange of the motor.
Use a sling to lift the traction motor. Align the
traction motor with the pinion in the speed re-
ducer.
21. Align the holes in the speed reducer and the mo-
tor housing. Install the capscrews that hold the
traction motor to the speed reducer. Tighten the
capscrews to 38 N•m (28 lbf ft).
22. Install the bolt and nuts at the support on the
bottom of the speed reducer housing. Adjust the
bolt until it touches the motor housing. Turn the
bolt an additional 1/2 turn counterclockwise to
push on the traction motor. Tighten the upper
nut. Tighten the lower nut to 33 N•m (24 lbf ft)
without moving the bolt.
INSTALL
1.
Use a floor jack to slide the drive unit assembly
in position under the lift truck.
2.
Align the bolt holes in the axle mounts and the
frame. Lubricate the alignment pins with Never-
Seez and install them. The alignment pins can
be a tight fit. See the procedures in Figure 4 and
Figure 5. Install the bolts that fasten the axle
mounts to the frame. Tighten the nuts and bolts
as follows:
a. If the torque wrench is on the head of the bolt,
tighten the bolt to 780 N•m (575 lbf ft).
b. If the torque wrench is on the nut, tighten
the nut to 715 N•m (528 lbf ft).
3.
Assemble the brake assembly to the axle mount
as described in Brake System 1800 SRM 566.
NOTE:
The outer wheel bearing is lubricated by gear
oil from the differential housing. The inner wheel
bearing is lubricated by wheel bearing grease. Do
not use too much grease to lubricate the inner wheel
bearing so that grease is pushed past the seal into
the area for the brakes.
4.
Install a new oil seal in each hub. Install the oil
seal with the lip toward the outer bearing. Install
the inner bearing and seal. Put wheel bearing
grease on the inner bearing.
5.
Install hub on the axle spindle. Be careful that
the seals are not damaged during installation.
Install the outer bearing, lock plate, and lock
nut. Tighten the lock nut to 205 N•m (151 lbf ft)
while rotating the hub. Loosen the lock nut un-
til the hub turns freely. The torque must be less
than 27 N•m (20 lbf ft). Tighten the lock nut
to 34 N•m (25 lbf ft) or until the first alignment
position after 34 N•m (25 lbf ft). Bend the lock
plate over the lock nut. See Figure 16.
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