Iveco Stralis AT/AD. Manual — part 157
39648
71540
40375
40377
39650
40070
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Position the seal ring on the load bearing sleeve. Fit the load
bearing sleeve (3), the brake support plate (4) and dust seal
disk. Smear the screws (2) and tighten to the correct value
with a torque wrench (1).
Smear LOCTITE 573 on the seat (
⇒) of the load bearing
sleeve (3) on the seal rings support ring (2). Heat the ring (2)
with an electric drier and key on the load bearing sleeve (3).
Heat the taper bearing internal ring (1) to 100ºC and fit on the
load bearing sleeve.
Fit the brake shoes as described in the brake air system section.
Lubricate the lip of the seal rings and sleeve.
Fit the hub (1) on the load bearing sleeve (2).
Lubricate the seal ring (3) and fit on the wheel hub.
Using an electric drier, heat the taper roller bearing (1) to
100ºC and fit on the bevel gear support (2) with a punch.
Fit the bevel gear support (3) and the taper roller bearing (2)
on the load bearing sleeve (4).
Apply a thin layer of MOLYKOTE on the contact surface of
the adjusting nut and tighten with wrench 99354207 (1) until
the hub rotates with difficulty. Release the hub with a few
blows from a hammer in the direction of the axis and in both
directions.
78
REAR AXLE 451391
S
TRALIS
AT/AD
Base - January 2003
40071
40072
40069
39636
39653
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
Position tool 99395026 (1) and, using a torque wrench (2),
read the wheel hub rolling torque.
Once the required rolling torque has been achieved, secure
the adjusting nut (2) with a punch in the two grooves on the
load bearing sleeve (1).
Position the spacer ring (2) on the load bearing sleeve.
Using tool 99374451 (1) introduce the drive shaft (2) on the
load bearing sleeve (3).
Position the gear unit (3) on the grooved section of the drive
shaft and the safety ring (1) in the seat. Drive the shoulder pin
(2) into the seat on the drive shaft.
Whilst reading the wheel hub rolling torque, hub
rotation must not exceed 40 rpm.
!
Wheel hub rolling torque values vary according to the
following conditions:
- new bearings with
surface protection
6
÷ 7 + (12 ÷ 16) Nm
- run in bearings and new,
lubricated seals
6
÷ 7 + (5 ÷ 7) Nm
- run in bearings and seals
6
÷ 7 + (2.5 ÷ 4.5) Nm
The double toothed short half shaft is to be fitted in
the bearing shaft on the differential locking side.
!
Assembling the epicycloid reduction gear
REAR AXLE 451391
79
S
TRALIS
AT/AD
39654
39655
26916
39656
40073
Figure 38
Figure 39
Figure 40
Figure 41
Figure 42
Position the bevel gear (1) with the external bevel facing
outwards and then fit on the bevel gear support.
Smear the rollers (1) with grease and position, together with
the three spacer rings (2) on the side pinion (4), as shown in
the drawing.
Position the side pinion (4) and the spacer washer (5) in the
side pinion support.
Introduce the support pin (3) from the cover side, pushing it
fully into position.
Repeat the same operation for the remaining two side pinion
units.
Smear a thin layer of LOCTITE 573, or Reinzoplast, on the
contact surfaces of the side pinion support (2) and the wheel
hub (1).
Smear a thin layer of LOCTITE 510 on the cover (3) and side
pinion 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 a torque of 50
± 5 Nm with a torque
wrench (2).
Push the side pinion support (2) onto the hub by moving the
drive coupling flange in both directions to facilitate toothing
engagement. Make sure that the fixing holes on the side pinion
support and the hub coincide.
Position the three cheese-headed screws (4) and tighten to
a torque of 50
± 5 Nm with a torque wrench (3).
Fit the brake drum (1) on the side pinion support. Secure the
brake drum with the two cheese-headed screws (2) and
tighten to a torque of 50
± 5 Nm with a torque wrench (3).
80
REAR AXLE 451391
S
TRALIS
AT/AD
Base - January 2003
40431
Figure 43
D
IF
FE
REN
TI
A
L
U
N
IT
P
A
RTS
1.
Elect
ric
tr
an
sm
it
te
r
-
2.
S
e
al
an
d
co
u
p
ling
ring
-
3.
C
o
ve
r
-
4.
S
e
al
ring
-
5
.P
is
to
n
-
6.
Fo
rk
-
7
.S
p
ring
s
-
8
.B
ea
ring
-
9
.C
o
ver
-
10.
P
la
te
-
11.
S
crew
-
12
.C
ov
er
-
13.
Wa
sher
-
14.
S
id
e
p
inio
n
-
15.
S
h
o
u
ld
er
wa
sh
er
-
16.
Ha
lf-
h
o
u
sing
-
17.
B
e
aring
-
18.
Ring
-
19.
Ring
nut
-
20.
O
il
b
affle
-
21.
Ring
b
e
ve
l
gea
r
-
22.
S
e
al
ring
-
23.
D
iff
e
re
n
ti
al
u
n
it
-
2
4
.Fl
an
ge
-
25.
D
u
st
se
al
-
26.
S
e
al
ring
-
27.
B
e
ar
ing
-
28.
B
e
ar
ing
-
29.
P
inio
n
su
p
p
o
rt
-
30.
B
e
ar
ing
-
31.
A
d
jus
ting
ring
-
32.
P
inio
n
-
33.
B
e
ar
ing
-
34.
Ho
us
ing
-
35.
S
crew
-
36.
C
rown
w
heel
-
37.
C
ro
ss
p
ins
-
38.
S
crew
-
39.
Ring
nut
-
40.
S
leev
e
-
41.
S
lid
ing
sleev
e
-
42.
S
crew
-
43.
S
crew
-
44.
S
crew
-
45.
B
e
ar
ing
-
46.
Ring
-
47.
N
u
t
REAR AXLE 451391
81
S
TRALIS
AT/AD
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