Iveco EuroCargo (12 to 26 t). Manual — part 119
Figure 11
520610
AXLE DETACHMENT AND REATTACHMENT
Front axle detachment
60383
Place the vehicle on a flat ground and clamp rear wheels.
Release front wheels’ lock nuts.
Use an hydraulic jack to lift the front part of the vehicle and
place it onto two supporting stands.
Unscrew the lock nuts and remove the wheels using hydraulic
truck 99321024.
Use extractor 99347068 (4) to remove the tie rod steering
knuckle (6) of the lever (5).
Disconnect the air delivery pipe (1) from the membrane brake
cylinders, the wire of the wheel revolution sensor (3) and the
wire (2) of the worn braking washer signaller.
Place under the axle an hydraulic jack fitted with support
99370628.
Unscrew the nuts (8) and remove the brackets (7) connecting
the axle spring bands and the supports (10) clamping the stabi-
lizer bar (9), in order not to make it interfere with the following
operation.
Lower the hydraulic jack and extract the axle underneath the
vehicle.
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Figure 12
36400
Check clearance of articulated joints
Check and adjust front wheel set up.
To lock nuts consider the couples contained in the
appropriate table on page 13.
CHECKS ON THE VEHICLE
Tie rods
Check that screws and stop block lock nuts of tie rods are
not worn and that they are clamped according to the pre-
scribed torque.
Tie rods must not be damaged or worn as well as the
threaded part.
Articulated joints
Clean tie rod articulated joints, both cross and longitudinal.
Such an operation must be made with dry towels or cotton
wool. Do not use solvents.
Check that the articulated joint’s several components are not
corroded for more than 1 mm and, in particular, check the
metal sheet cover next to the rolling.
Check the guard:
- it must be clamped to the joint’s body and pin through
circlips and it must not rotate;
- it must not be worn or damaged;
- press it manually and check if any grease comes out;
- check that the nut and the split pin are not worn.
Figure 13
38654
Place the vehicle on a lift-bridge or a pit and do not lift the
wheels.
Use a gauge to measure the distance between the articulated
joint’s body and its edge making three measurements in the
following conditions:
- straight wheels
dimension X;
- wheels turned on the left
dimension X
1;
- turned wheels
dimension X
2;
(completely on the right)
Calculate clearance A according to the following formula:
A = B - X
where B is the biggest value resulting from measurements X
1
and X
2.
Such clearance must not be over 2 mm.
If an higher clearance or any other fault are detected during
the checks, replace the involved element according to the
procedure described in the related chapter.
Front axle reattachment
Use an hydraulic jack fitted with support 99370628 to lift the
axle, so that spring band connecting pins (4) are introduced
in the holes (5) on the spring supporting plane on the axle.
Make reattachment reversing the order of detachment oper-
ations.
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FRONT WHEEL SET UP
Before checking, it is necessary to make a preliminary investiga-
tion of some vehicle elements which can affect set up. If any
fault is detected, it is important to eliminate it in order to avoid
wrong measurements.
The checks to be made are the following:
- tyre pressure;
- wheel hub bearing clearance;
- clearance between track rod pins and levers on steering
knuckles;
- shock-absorber efficiency;
- wheel rims must not be dramatically distorted.
Make wheel set up check using equipment 99305354.
!
Checks and possible adjustments of wheel set up
must be made with the vehicle having static load.
By and then, check perfect calibration of optical
units.
Figure 14
Place the vehicle with the wheels in upright direction on a flat
surface. Lift the vehicle’s rear part and place the platforms
under the wheels (3). Lower the vehicle, brake the rear
wheels and set the hook (1) with the ruler (2).
32973
Figure 15
Figure 16
Lift the vehicle’s front part and place the swinging plates (1)
under the wheels, clamping them with the appropriate locks
(2).
32974
32975
Place on the wheel rim the self-centring clip (2) fitted with the
right lock pins (1). Use the handle (3) to clamp the clip on
wheel, checking that the wheel itself is well fixed.
Figure 17
Set the detecting system (3) on the clips (1) and clamp it with
the screw (2). Repeat the same operations on the other wheel.
32976
Setting of clips and headlights
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FRONT AXLE 5845
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Figure 18
Balance detectors (3) by using the spirit level (1) and clamp
them in this position by the screw (2).
Move the rulers (4) until they are hit by the light signal re-
leased by the detector and write the indicated values.
Connect detectors’ plugs to the transformer and switch it on.
Release the detector’s lock screw and lift the lens cover.
Push the button “off centre” (3) for at least two seconds, five
lines will be displayed on the digital (1) indicator.
Slowly rotate the wheel by hand and project the light signal
on the corresponding ruler scale (5).
Detect and write down the minimum and maximum excur-
sion of the light signal: e.g. 12 and 8.
Calculate the excursion’s average value: 12 + 8 = 20 : 2 = 10
and place the wheel according to the calculated average value,
marking the new position.
Push again the button “off centre” (3) until the wheel inclina-
tion led (2) is switched on and on the digital indicator a fake
value is displayed.
Repeat the same operations on the other wheel.
32977
!
Be careful that the laser ray does not hit people’s
eyes: it would severely harm their sight.
Electronic compensation for rim maladjust-
ment
Figure 19
Push the brake pedal and leave it in this position using the ap-
propriate tool (1) set against the seat, thus keeping the vehicle
braked during the whole measurement.
32978
Figure 20
Figure 21
32979
If the values are different, turn the wheels until the light signal
indexes reach two equal values (A) and the exact average
value resulting from the two previous detections. In such a
way it is possible to obtain a perfect wheel alignment.
13952
Wheel alignment
Lower the vehicle so that the wheels, being in the marked
position, touch completely the centre of the swinging plates
and release the latter from the related bases by removing the
pins (4).
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FRONT AXLE 5845
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Base - February 2003
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