Columbia ParCar Expediter EX21-24A, Service Manual

Page: 65 / 94

Section 7 - Rear Wheels,
Rear Suspension & Axle Assembly
21. Remove fill plug (19) in cover plate (18). Fill axle assembly
with 12 ounces (360 ml) of Light Weight Gear Lubricant, SAE
30. Install fill plug. If it is a threaded plug, torque to 25-40 ft.
lbs. (6-14 Nm).
3. See Figure 7-5. Connect brake strips to brake assemblies
using new cotter pins and clevis pins.
4. Install U-bolt securing rear axle to traction drive motor
mounting plate.
5. Install the traction motor as described in Section
10Traction Drive System .
6. Install rear shock absorbers and springs as described
previously in this section.
7. Install washer and new axle nut. Engage brake and
tighten axle nut to a minimum 65 ft. lbs. (62 Nm). Install
new cotter pin. Install rear brake drum (Figure 7-5).
Repeat for other side.
8. Install spacers and wheel assemblies as described
previously in this section.
9. Drive the vehicle and test axle operation.
Figure 7-31
REAR AXLE DIFFERENTIAL OIL CHANGING
DIFFERENTIAL OIL
Differential oil must be changed at least once a year under
normal vehicle usage. If vehicle is operated under extreme
conditions, or for more than 8 hours a day, oil should be
changed twice a year.
It is not necessary to remove the axle to change the differential
oil.
22 . Apply Anti-Seize compound to the splines before
installing the drum/hub.
INSTALLING REAR AXLE
Rear axle is heavy and awkward to move. Get help
lifting and removing axle to prevent possible personal
injury.
NOTICE : Make sure rear axle has oil in the differential
before installing. See Checking Differential Oil in this
section before installing.
Carefully position axle into place. . 1
Secure axle to frame with four bolts, washers and nuts. . 2
Torque nuts to 45 ft. lbs. (16 Nm).
Figure 7 - 29
Figure 7 - 30