Iveco Stralis AT/AD. Manual — part 224
77089
Figure 63
64
SUSPENSIONS
S
TRALIS
AT/AD
Base - January 2003
PART
TORQUE
Nm
kgm
1
M18 screw fixing triangular arm to rear axle housing
330 to 270
33 to 27
2
M20 flanged nut fixing stabilizer bar on air spring mounting and fixing link rod on chassis frame bracket
685 to 560
68.5 to 56
3
Nut for bolt fixing flexible anchoring to link rod
200 to 165
20 to 16.5
4
Nut fixing air spring to mounting
101 to 83
10.1 to 8.3
5
M20 nut with collar
900 to 750
90 to 75
6
M24 nut with collar for brackets fixing rear axle to suspension mounting
704 to 576
70.4 to 57.6
7
M20 nut fixing top and bottom shock absorber for rear axle
250 to 210
25 to 21
8
M18 x 1.5 nut fixing longitudinal rods
460 to 375
46 to 37.5
9
M18 screw fixing triangular arm to bracket
385 to 320
38.5 to 32
71519
Figure 64
Removal
!
If the screw (21) is fitted with its head on the outer
side of the vehicle, it will first be necessary to re-
move the side access step — air filter assembly (de-
tail B) used to help remove the front suspension.
Proceed as described below:
Remove the bolts (6) and (7) located inside the
battery compartment.
Take out the screws (24) fixing the handrail and
the bottom (4) and top (10) screws fixing the
handrail and the steps to the vehicle.
Remove the access steps and the handrail.
Disconnect the batteries and remove them from
the battery compartment.
Remove the bolt (5) and nuts (8).
Take out the screw (1) fixing the air pipe.
Disconnect the air sensor (9).
Remove the bracket bolts (3) and loosen the air
hose retaining strap (2) (detail A).
Remove the air cleaner complete with its hoses.
Remove the fastening (11) from the front mount-
ing (14).
Unscrew the four nuts (17) and extract the U-
bolts (18).
Disengage the shock absorber (23) front the sus-
pension via the fastening (19).
Remove the leaf spring (20).
Park the vehicle on level ground and chock the rear wheels.
Loosen the front wheel nuts.
Using a hydraulic jack, raise the front of the vehicle and support
it on two stands.
Unscrew the wheel nuts and using hydraulic trolley 99321024,
remove the wheels.
Position a hydraulic jack to support the axle when the leaf
spring is detached.
Then, lower the hydraulic jack supporting the axle until the
tension on the leaf spring is relieved.
Remove the lower access step (15) as follows:
Working from underneath the vehicle, remove the bolts (12)
securing the U-bolts (13) to the bracket.
At the side, remove the screw and the nut (16) with the front
bumper and extract the access step assembly (15).
Take out the screw (21) fixing the leaf spring (20) to the rear
shackle (22).
Carry out the removal operations in reverse order,
observing the prescribed torque settings.
Refitting
!
To secure the leaf spring on two connections to the
chassis frame it is necessary to load it so as to
stretch it to align the holes, using appropriate tools
and with the opposition of the load of the vehicle
and the hydraulic lifts.
SUSPENSIONS
65
S
TRALIS
AT/AD
500410
REMOVAL-REFITTING OF FRONT LEAF SPRING
73839
Figure 65
Removing longitudinal bars
Park the vehicle on level ground and chock the rear wheels.
Loosen the front wheel nuts.
Put a hydraulic jack equipped with mount 99370628 under the
axle.
Lift the vehicle at the front, rest it on two stands and, with the
hydraulic jack and mount 9937628, support the axle so that
the longitudinal bars (3) and (8) are parallel to the chassis
frame.
Remove the cab access steps. Take out the bolts (6) and
remove the access step mount (7).
Take out the screws (5) and disconnect the bottom bar (8)
from the mount (4). Repeat these operations for the top bar
(3).
Repeat the above for the opposite side.
For refitting, perform the operations described for removal in
reverse order, keeping to the following instructions:
the swivel head shanks (14) and (15) of the longitudinal bars
(3) and (8) need to be connected to the mountings (4) and
(12) when there is a distance X = 154 mm between the
mountings (12) and the structural members (13);
the swivel head shanks (11) of the transverse bar (1) need to
be connected when there is a distance X = 224.5 mm
between the mountings (12) and structural members (11);
Refitting
Removing transverse bar
Take out the screws (9) and remove the transverse bar (1)
from the mounts (2) and (10).
- tighten the nuts or screws to the required tightening
torque;
- the self-locking nuts must not be reused;
- check the state of the flexible pads and replace them if
deteriorated (operation 500417).
66
SUSPENSIONS
S
TRALIS
AT/AD
Base - January 2003
72895
Figure 66
Park the vehicle on level ground.
Raise the vehicle at the rear and place two stands under the
chassis frame.
Remove the wheels, unscrew the screws (13) and disconnect
the linkage (3) of the level sensor (1).
Unscrew the nuts (10) and disconnect the reaction bar (11).
Unscrew the nuts (2) and (8) and remove the shock absorber
(4).
Unscrew the nuts (5) fastening the air springs.
Unscrew the nuts (9), take out the associated U-bolts and
remove the arm (12) supporting the air springs.
!
The following operations have been performed on
a 4x2 T/P vehicle, but they are to be considered
good for the other vehicles too.
Refitting
Unscrew the screw (7) and remove the stabilizer bar (6) from
the air spring mounting (12).
For refitting, perform the operations described for
removal in reverse order, keeping to the following
instructions:
Removal
SUSPENSIONS
67
S
TRALIS
AT/AD
500730
REAR SUSPENSIONS
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