Iveco Stralis AT/AD. Manual — part 158
39658
39659
71534
39660
39661
Figure 44
Figure 45
Figure 46
Figure 47
Figure 48
Remove the screws (1) fixing the differential housing to the
axle housing.
Position a container under the wheel hub (1); unscrew the
screws (2), remove the cover (3) and drain off the oil.
Fit tool 99374451 (1) in the shoulder pin seat thread, then
extract the drive shaft (2) from the load bearing sleeve.
Using eyebolts, raise the pinion support (1) with a sling and
unscrew the four screws (2) fixing the differential housing.
Using eyebolts (1) and a sling, raise the differential housing (2).
26924
Figure 49
The end float on the drive shaft (1) must be between 0.5 and
1 mm. To carry out this adjustment fully tighten the adjusting
screw (2), then unscrew by half a turn and secure with the hex
nut (3).
!
526210
REMOVING-REFITTING
THE DIFFERENTIAL
The flat face of the hex nut must be positioned
towards the seal ring (4).
82
REAR AXLE 451391
S
TRALIS
AT/AD
Base - January 2003
39662
39664
39663
39665
39666
40073
Figure 50
Figure 51
Figure 52
Figure 53
Figure 54
Figure 55
Fit the sliding sleeve (1) on the drive shaft (2) with double
toothing.
Smear LOCTITE 573 (1) sealing compound on the contact
surface. When assembling the differential housing, make sure
that the differential lock engagement fork is correctly
introduced on the sliding sleeve.
Position the seal ring and assemble the differential housing (1).
Apply LOCTITE 573 on the threads of the external screws (2).
Using a torque wrench, tighten the external (2) and internal
(3) screws to the correct torque.
Smear LOCTITE 573 (1) sealing compound on the contact
surface.
Position the bevel pinion support (1) on the differential
housing (2). Using a torque wrench, tighten the screws (3) to
the correct torque.
Smear a thin layer of LOCTITE 510 on the cover (3) and
crown wheel support (4) contact surfaces. Position the cover
so that the bevels of the support pins coincide with the holes
on the cover. Smear LOCTITE 573 sealing compound on the
screw (1) thread and tighten to the correct torque with a
torque wrench (2).
!
Apply a bead of LOCTITE 510 around the oil passage
holes.
!
Apply LOCTITE 573 on the threads of the screws (3)
that pass through the holes.
REAR AXLE 451391
83
S
TRALIS
AT/AD
39667
39669
39668
39670
39671
39672
Figure 56
Figure 57
Figure 58
Figure 59
Figure 60
Figure 61
Position the differential housing with the gear housing cover
(1) facing upwards, on rotating stand 99322205 (2), together
with support 99322225 and pair of brackets 99371022 (3).
Provisionally fit the bevel pinion support (4).
Unscrew the screws (1) and remove the safety plate (2).
Repeat the same operation on the opposite side.
Heat the points indicated by the arrows with drier 99305121
and unscrew the screws (2) fixing the cover (secured with
LOCTITE).
Raise the gear housing cover (1).
Using hook 99370509 (1), raise the gear housing (2), together
with the taper roller bearings and bearing external rings.
Rotate the differential housing through 90º.
Remove the safety notch on the fixing nut.
Apply reaction lever 993701317 (2) to the drive coupling
flange and, using Allen wrench 99355081 (1), loosen the fixing
nut.
1
2
3
4
84
REAR AXLE 451391
S
TRALIS
AT/AD
Base - January 2003
Disassembly
39673
39675
39674
39676
39677
40086
Figure 62
Figure 63
Figure 64
Figure 65
Figure 66
Figure 67
Unscrew the screws and washers of the differential housing
(3) bevel pinion support (1). Fit the reaction screws (2) and
extract the differential housing support.
Using a universal punch, extract the bevel pinion taper roller
bearing (1) from the seat on the differential housing.
Unscrew the 2 sunken hex screws (1) and remove the
differential locking device control cylinder (2).
Extract the piston (2), together with the seal ring (3), the
engaging fork (1) and the compression spring (4).
Remove the circlip (1) and extract the differential lock
engaging sleeve (3) from the gear housing cover (2).
Using extractor 99348001 (1-2) and reaction block 99345055
(3), extract the taper roller bearing from the gear housing.
Repeat the same operation on the opposite side.
Gear housing disassembly
REAR AXLE 451391
85
S
TRALIS
AT/AD
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