Terex TS14G, Maintenance Manual

Page: 92 / 376

2
SM 1780 4-99
Rear Axle - Differential
Section 160-0020
which are bolted to ring gear (13). Thus, ring gear
(13), plain case (4) and flanged case (14) rotate as
an assembly when driven by input pinion gear (28).
However, side gears (6 & 10), into which each axle
shaft is inserted, are free to rotate independently
about spider pinion gears (8) with which they are
meshed. Therefore, as each drive wheel travels
through a different arc as the truck makes a turn,
side gears (6 & 10) rotate about spider pinion gears
(8) to provide the required differential action.
REMOVAL
WARNINGS
To prevent personal injury and property
damage, be sure wheel chocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
A come-a-long or chain fall with a
minimum capacity of one ton is required for
removal and installation of a differential
assembly.
1. Position the vehicle in a level work area, apply the
parking brake and switch off the engine. Operate the
steering in both directions several times to relieve
any pressure in the steering system.
2. Block all road wheels and place the battery master
switch in the 'Off' position.
3. Drain the lubricant from the differential banjo
housing and planetary assemblies.
Note: When the differential is removed from the rear
drive axle housing, it may be necessary to raise the
frame above the drive axle housing to ensure proper
clearance between the differential carrier housing and
the frame crossmember. When the differential is
removed from the front axle housing, it will be
necessary to remove the main hydraulic valve
mounting bolts and raise the control valve (with
hoses connected) out of the way.
4. If required, use suitable lifting equipment to lift the
frame off the drive axle housing far enough to
facilitate removal of the differential without
interference, and block the frame securely in this
position.
5. Remove the driving flange cover from each wheel.
Refer to Section 160-0040, PLANETARY GEARING.
6. Pull the axle shaft and sun pinion gear assembly of
each driving wheel at least 305 mm (12 in) out of the
wheel housing so that the inner axle shaft splines will
be disengaged from the splines of the differential side
gears (6 & 10). See Fig. 2.
7. Identify the relationship of the differential pinion
yoke flange (33) with that of the driveline companion
flange using punch marks.
8. Uncouple driveline at differential yoke flange (33),
then lower the driveline.
9. Install a suitable chain fall or come-a-long to the
differential assembly.
10. Support the weight of the differential assembly
with suitable lifting device.
11. Remove mounting hardware which secures the
differential carrier housing (26) to the axle banjo
housing.
12. Pull the differential assembly away from the banjo
until it clears the studs of the axle banjo housing, then
carefully lower the differential assembly.
SM - 2176
Fig. 2 - Typical Axle Shaft Removal
Courtesy of Machine.Market