Iveco EuroCargo (12 to 26 t). Manual

Figure 14

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
excursion 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
inclination led (2) is switched on and on the digital indicator
(1) 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
maladjustment

Figure 15

Push the brake pedal and leave it in this position using the
appropriate tool (1) set against the seat, thus keeping the
vehicle braked during the whole measurement.

32978

Figure 16

Figure 17

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
released by the detector and write the indicated values.

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).

URO

ARGO

ECTOR

12-26 t

FRONT AXLE 5871/5

Base - February 2003

Figure 18

Figure 19

Check of wheel inclination (Camber)

32980

Still having detectors perfectly balanced and the wheels
completely aligned, use a lever (1) to move the lens cover.
Move the lever (2) and point the light signal index to the
ruler’s graph scale (3) corresponding to the rim’s diameter.
Repeat the same operations with the opposite detector and
read the toe-in values expressed in millimetres on the graph
scales.
The algebraic sum of the two detected values must amount
to: 0.5

÷ 1.5 mm with static load.

If the front wheels are aligned with the rear ones and the
detectors are balanced, push the wheel inclination button (3)
and the led (2) will be switched on. The digital indicator (1) will
give the value of the angle of inclination which must be 1

°.

32981

Toe-in adjustment is made affecting the cross tie
rod.

Figure 20

Figure 21

The wheels’ angle of inclination is a fixed value which
cannot be adjusted.
Therefore, if a different value is detected, remove
and dismantle the axle, make the appropriate
investigations and possible replacements.

Check upright angle of inclination (King Pin)
and clearance angle (Caster)

Still having the front wheels aligned with the rear ones, loose
knurled knobs (2) and set to zero the graduated sector (3)
on the swinging plate’s index (1).

32982

Turn the wheels inwards by 20

° and push twice the upright

inclination button (3), the led (2) will be switched on and nine
horizontal lines will appear on the digital indicator (1).

32983

URO

ARGO

ECTOR

12-26 t

FRONT AXLE 5871/5

Base - February 2003

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
investigations 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
graduated 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
prescribed value, considering that to make the survey it is
necessary 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
opposite 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’.

URO

ARGO

ECTOR

12-26 t

FRONT AXLE 5871/5

Base - February 2003

49178

78421

49179

36409

49180

Figure 25

Figure 26

Figure 27

Figure 28

Figure 29

Unscrew the plug (1) and drain the oil into a proper
container.
Take down the brake calipers.

Use reaction lever 99370317 (3) to lock wheel hub rotation
and with wrench 99354207 (2) unscrew the oil cover (1).

Loosen the screw (4), remove the adjusting nut (3) with
wrench 99388001, pull out the washer (2), the outer bearing
(1) and take down the wheel hub with the relactive spacer
and inner bearing.

Using suitable tools remove the seal ring (2), inner bearing
and phonic wheel (3) from the wheel hub. (1)

Using a suitable drift remove the outer rings (1 - 2) of the
bearings from the wheel hub.

520610

OVERHAULING THE FRONT
AXLE ASSEMBLY

Using lifting gear, position and secure the axle assembly (1)
on stand 99322215 (2) for overhaul.

520620

Removing the wheel hubs

520621

Replacing the wheel hub bearings

Make sure that the housings of the outer rings of the
wheel hub bearings have not been dented by the
removal operation.

520610

OVERHAULING THE FRONT
AXLE ASSEMBLY
(Mechanical and pneumatic
suspension)

For front axle disconnection and reconnection, refer to the
procedure described for 5842 and 5851 front axles.

URO

ARGO

ECTOR

12-26 t

FRONT AXLE 5871/5

Base - February 2003

Content .. 133 134 135 136 ..

Iveco EuroCargo (12 to 26 t). Manual - part 135