Iveco EuroCargo (12 to 26 t). Manual — part 128
Figure 22
Figure 23
The upright angle of inclination and the clearance
angle are fixed values which cannot be adjusted.
Therefore, if different values are detected, remove
and dismantle the axle, make the appropriate in-
vestigations and possible replacements.
Turn the wheels outwards by 20
° and push again the upright
inclination button (2), the digital indicator (1) will display the
value of the upright angle of inclination (King Pin) which must
be 7
°.
32984
32985
!
Figure 24
With the wheels in upright direction, set to zero the grad-
uated sectors (5) on the index (2) of the swinging plates (4).
If the steering angles which must be detected are bigger than
30
°, it is necessary to use as “0°” reference indexes the 20°
sign (1) placed on the swinging plate and the corresponding
one on the graduated sector.
Turn the inside wheel according to the prescribed value and
check that the outside wheel’s angle corresponds to the pre-
scribed value, considering that to make the survey it is necess-
ary to use as “0
°” reference indexes the 20° sign (3) placed
on the swinging plate and the corresponding one on the
graduated sector.
Repeat the same operations and check steering of the oppo-
site wheel.
32986
Without moving the wheel, push the clearance angle button
(3). The led will be switched on (1) and the digital indicator
(2) will display the value of the clearance angle (Caster) which
must be 2
°30’.
E
URO
C
ARGO
T
ECTOR
12-26 t
56
FRONT AXLES 5842/5 - 5851/5
Base - February 2003
520610
OVERHAUL OF THE FRONT
AXLE ASSY
Figure 25
Figure 26
520620
Removal and refitting of wheel hubs
Use a lifter to place and clamp the axle assy (1) on stand
99322215 (2) in order to make overhaul.
32990
78421
Figure 27
Sealing ring replacement
With generic tools, extract sealing ring (3).
Moisten the edges with oil.
With keyer 99374233 (2) and handle (1), assemble the seal-
ing ring into its own wheel hub seat.
32997
Figure 28
Use reaction lever 99370317(3) to stop the wheel hub rota-
tion and use wrench 99354207 (1) to release the cover (2).
32995
Figure 29
Rotate wheel hub in order to set the screw plug (1) down;
unscrew plug and drain oil into a special container. Take off
the brake calipers.
Loosen screw (1), unscrew adjusting ring (2) by means of
wrench 99355038 (4), take out washer (3), the tapered-
roller bearing and the spacer, then take off the wheel hub in
the proper way.
60872
E
URO
C
ARGO
T
ECTOR
12-26 t
FRONT AXLES 5842/5 - 5851/5
57
Base - February 2003
Figure 30
60875
Figure 31
Figure 32
Figure 33
Check that the surfaces of all elements inside the hub
are accurately cleaned, without slag and burrs.
Wheel hubs refitting
Screw on the steering knuckle pin the tool 99370714 (3) and
lubricate its outside surface using oil TUTELA W 140/M-DA.
Secure with a rope (1) the wheel hub (2) and support it with
the lifter. Key the wheel hub (2) carefully on the steering
knuckle pin in order not to damage the sealing ring.
Mount spacer (4) and tapered-roller bearing (5).
Release tool 99370714 (3).
Key the washer (6) and screw the check ring (7) with the re-
quested torque.
Hit the wheel hub in axial direction with a mallet and rotate
it in both directions in order to release the bearings’ rolls.
Set the magnetic base (1) fitted with a gauge (2) on the wheel
hub.
Place the gauge pointer (3) perpendicular to the steering
knuckle shank (4).
Set the gauge to zero with a preload corresponding to 1.52
mm.
Move the wheel hub in axial direction by means of a lever and
detect the end play which must be 0.16 mm (maximum
value).
If the detected value does not correspond to the prescribed
one, replace the bearing unit and make a new survey.
32998
End play adjustment of wheel hub bearings
Once the requested end play has been reached, clamp the
adjusting ring (2) check screw (1) with the requested torque.
32999
Rolling torque survey
Place tool (1) 99395026 on the wheel hub stud bolts and use
dynamometer 99389819 (2) to check that the wheel hub
rolling torque is 3.0 Nm.
34541
Screw the hub cover with the requested torque.
Place some sealer (Loctite type 574) only on the sur-
face touched by the hub cover, protecting the
threaded part.
Reset hubs in the wheels and the prescribed (0.2
litres) quantity of oil (Tutela W 140/MDA).
E
URO
C
ARGO
T
ECTOR
12-26 t
58
FRONT AXLES 5842/5 - 5851/5
Base - February 2003
Figure 34
Figure 35
Place outer bearing outer race (3) into its seat, then proceed
to ramming by means of beater (2) 99374093 and handle
99370007 (1).
33001
33002
Put the inside bearing’s outside ring (3) in its place and use
beater 99374093 (2) and handle (1) 99370007 to settle it
down.
Lubricate the inside bearing with oil SAE W
140/MDA and place it in the wheel hub.
Set the sealing ring.
Reattach the wheel hub.
Adjust the wheel hub end play.
Check the rolling torque.
520621
REPLACEMENT OF WHEEL HUB
BEARINGS
Remove the wheel hub.
Take off the sealing ring and the bearing from the
location inside the wheel hub.
Use a beater to pull out the bearing’s outside rings
from the wheel hub.
Check that the bearing’s outside ring locations in
the wheel hub are not dented as a result of the pull
out operation.
E
URO
C
ARGO
T
ECTOR
12-26 t
FRONT AXLES 5842/5 - 5851/5
59
Base - February 2003
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