Iveco Stralis AT/AD. Manual — part 183
Figure 12
Figure 13
71553
Using the drift 99374093 (2), under a press, drive the outer
ring of the front bearing into the hub without going right down
to the bottom. Repeat this operation on the opposite side for
the outer ring of the rear bearing.
Complete driving home the outer rings of the bearings man-
ually with the drift 99374093 (2) and grip 99370007 (1).
40362
Using general tools, remove the following from the wheel hub
(1): seal (2), phonic wheel (3) and bearing (4).
Using a specific drift, drive the outer rings of the bearings out
of the wheel hub.
40363
40364
Figure 14
Figure 15
Lubricate the inner bearing with the oil prescribed for wheel
hubs (1) and place it on the wheel hub.
Using the drift 99374132 (1) and grip 99370006 (2), mount
the seal (3).
Figure 16
The phonic wheel (1) needs to be mounted after heating it to
a temperature of approx. 150ºC, checking after assembly that
the ”phonic” wheel rests on the seat of the hub properly.
40365
!
Check that the seats of the outer rings of the bearings
in the wheel hub are not dented after driving them out.
22
AXLES 5876/4 (F 8021) - 5876/5 (F 8021) - 5886/5 (F 9021) - 5876/2 (F 8021)
S
TRALIS
AT/AD
Base - January 2003
Replacing wheel hub bearings
Figure 17
40369
Using general tools, drive the pins (1) out of the hub (2).
Make sure that the surface supporting the heads of the pins has
no burrs.
Drive in the pins carefully, apply a load no greater than 2500 kg
on their head.
Afterwards, check that the inclination error is no greater than
0.3 mm.
Replacing wheel fixing pins
Figure 18
Using a dial gauge, check that the inclination of the phonic
wheel is no greater than 0.2 mm.
Refitting wheel hubs
40369
Screw tool 99370715 (1) to the steering knuckle pin and lubri-
cate its outer surface with the oil prescribed for wheel hubs.
Carefully key the wheel hub (2) onto the kingpin so as not to
damage the seal (3, Figure 15).
Fit on the spacer (3), inner ring (4) of the tapered roller bearing.
Unscrew the tool 99370715 (1).
Key on the washer (5) and screw down the stop nut (6).
Strike the wheel hub axially a few times with a mallet and turn
it in both directions to free the rollers of the bearings.
Apply the magnetic base (1) with the dial gauge (2) onto the
wheel hub.
Set the pointer of the dial gauge (2) at right angles to the shank
of the stub axle (4).
Reset the dial gauge with a pre-load of 1.5-2 mm.
With the aid of a lever, move the wheel hub axially and measure
the end float that has to be 0.16 mm (maximum value).
Check the required end float, lock the screw (5) holding the ad-
justment ring nut (3) to the required torque.
Checking wheel hub bearing end float
Figure 19
!
If the end float is not as required, replace the bearing
assembly and repeat the check.
40370
40370
60876
Using the wrench 99388001 (1) tighten the nut (6, Figure 18)
to the required torque.
Figure 20
AXLES 5876/4 (F 8021) - 5876/5 (F 8021) - 5886/5 (F 9021) - 5876/2 (F 8021)
23
S
TRALIS
AT/AD
Tighten the nuts fixing the tapered pins to the
required torque.
For refitting, carry out the operations performed for
removal in reverse order.
Using the extractor (1) 99347068, free the swivel head (3)
from the lever (2). Repeat this operation on the opposite side;
fully unscrew the nuts and disconnect the transverse tie rod.
40370
40371
Straighten out and take off the split pin (1).
Free the nut (2) and partly unscrew it so as to prevent the tie
rod falling when it is freed.
!
520635
REMOVING
AND
REFITTING
TRANSVERSE TIE ROD
40367
78322
Fit the tool (1) 99395026 onto the pins of the wheel hub and
using the torque wrench (2) 99389819 check that the rolling
torque of the wheel hub is 5 Nm.
Measuring rolling torque
Check that the position of the notches on the nuts
coincide with the transverse holes of the tapered
pins. If the split pins will not go in, progressively
increase the tightening torque of the nuts till they go
in properly (angle less than 60º).
Figure 21
Figure 22
Figure 23
Figure 24
Tighten to torque the hub cover (1, Figure 22).
Deposit a sealing bead (Loctite type 574) exclusively
on the hub cover ledge surface and protect the
threaded part.
Rotate the wheel hub until when hub cover (1) is positioned
as shown in the figure. Restore the prescribed quantity of oil
into the hub cover (1) through filling hole (2). Tighten the plug
on the hub cover (1) to the set torque.
24
AXLES 5876/4 (F 8021) - 5876/5 (F 8021) - 5886/5 (F 9021) - 5876/2 (F 8021)
S
TRALIS
AT/AD
Base - January 2003
Refit the transverse tie rod.
Check and if necessary adjust the toe-in of the front
wheels as described under the section heading
”Wheel Geometry”.
520635
REPLACING TRANSVERSE TIE
ROD SWIVEL HEADS
40372
Using wrench 99388002 (1), unscrew the screws (2) and re-
move the lever (1). To refit it, carry out the operations in re-
verse order, locking the screws to the required torque.
520611
REMOVING AND REFITTING PIN
FOR STUB AXLE
Removal
36419
Undo the screws (2) and detach the mount (1).
72778
For axles 5876/4 — 5876/2 only
Using specific pliers (1) take out the retaining ring (2) and re-
move the cover (3) with the grease nipple.
For axles 5876/5 - 5886/5 only
Take out the screws (4) and remove the top cover (5) and seal (6).
520632
CROSS TIE ROD LEVER
REMOVAL/REFITTING
Lock the screw (4), loosen the nut (3) and unscrew the
articulation (2) from the transverse tie rod (1).
71755
520631
LONGITUDINAL TIE ROD LEVER
REMOVAL/REFITTING
36418
Using wrench 99388002 (1, Figure 27) unscrew the screws (2)
and remove the lever (1). To refit it, carry out the operations in
reverse order, locking the fixing screws to the required torque.
!
The nut (3) has to be tightened with the clamp (5)
positioned in one of the set-ups shown in the figure.
!
To make it easier to refit the transverse tie rod and
then adjust the wheel toe-in, note down the number
of turns needed to unscrew each single articulation so
as to screw the new ones on with the same number
of turns.
Screw the new articulation into the tie rod and lock it in
position by tightening the locking nut (3) to the required
torque.
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
AXLES 5876/4 (F 8021) - 5876/5 (F 8021) - 5886/5 (F 9021) - 5876/2 (F 8021)
25
S
TRALIS
AT/AD
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