Iveco Daily Euro 4. Manual

62674

Check brake jaw conditions and replace if anomalies are
found.
If the brake lining surface is oily, trace the cause and repair
the fault.
The minimum brake seal thickness is 3.5 mm for models 60C
- 65C, and 1.5 mm for models 35C - 40C - 45C - 50C.
If this is not so, even if only slightly above or below the
specified value, replace them.
Check serviceability of shoe return springs.

VIEW OF THE PARKING DRUM BRAKE

Check inner disc diameter to establish whether it can
be reused.
Measure the inner disc diameter with a sliding gauge
without moving the arms to an angle.
Measure the drum diameter in several spots to
determine ovality and wear. Also examine depth of
scoring on the braking surface.
Max permitted ovality and/or eccentricity tolerance
is 0.1 mm.

Replace the disc if wear or evident signs of overheating are
found (see specifications and data table).

VIEW OF THE PARKING DRUM BRAKE

45047

For models 35C - 40C (not including vehicles with NDA R.G. rear axle) - 45C - 50C

For models 60C - 65C

Figure 89

Figure 90

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Figure 91

Loosen the tensioner under the chassis in the middle of the
vehicle.
Reverse disassembly operations to reassemble.
Using a sliding gauge, measure the diameter of the brake seal
(2), check that the values correspond with those indicated on
the specifications and data tables, if not, adjust the device (1)
until the correct values and data are obtained.

lift the rear of the vehicle, resting the chassis frame
on the stands;

loosen the lock nut (3);

take the parking brake lever, in the cab, onto its third
catch;

screw down the tightener screw (2) until the rear
wheels are hard to turn by hand;

operate 3-4 times the lever in the cab to set parts,
then check whether the stroke is of approx. 6 steps;

lock the lock nut (3);

lower the vehicle.

B. For further adjustments, it is necessary to proceed as fol-

lows:

Case 1 — With disk removal

lift the rear of the vehicle, resting the chassis frame
on the stands;

loosen the screw (2) completely;

remove the disc as described in the ”REAR AXLES”
section;

run the checks described on page 61;

use the adjustment device (1, SENZA CODICE) to
obtain the distances given in the ”Specifications and
Data” table;

mount the disc and wheels. Firmly apply the parking
brake a few times to settle the sheaths of the ropes;

take the parking brake lever, in the cab, onto its third
catch;

screw down the tightener until the rear wheels are
hard to turn by hand;

lock the tightener lock nut;

lower the vehicle.

Case 2 — Without removing disks

lift the rear part of the vehicle resting the chassis on
the supporting stands provided for the purpose and
remove wheels;

loosen the lock nut (3);

Assembly

5027

Adjusting parking brake

(vehicles with parking drum brake)

52277

Figure 92

A. Play recovery is not automatic. Minor lever stroke exten-

sion (corresponding to approximately 2 notches in addi-
tion to the normal lever stroke which is 7 notches) by
means of the tensioner (1) as shown below:

Figure 93

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remove the brake upper slot rubber plug (3);

use tool 99372249 (1) to operate the manual ad-
juster internal ring nut (2) and widen the shoes until
the disk can no longer be turned using just the hands;

always with tool 99372249 (1), loosen the above
mentioned adjusting ring nut (2) by 3 notches and
check whether the disk is free to turn;

refit the rubber plug into the slot;

refit rear wheels;

set the lever in the cab to the third position;

screw the tightener screw (2, Figure 81) until wheels
can no longer be turned using just the hands;

operate 3-4 times the lever in the cab to set parts,
then check whether the stroke is of approx. 6 steps;

lock tightener lock nut;

lower the vehicle.

Below is the description of sensor calibration only. As far as steering angle sensor replacement is concerned, refer to the
description on page 24 of the “Steering” section.

Vehicles with parking brake on brake disc
Clearance recovery is automatic, but if the ropes are
removed or replaced it is necessary to adjust their length in
accordance with points A and B.

Should new brakes/disks be replaced at the same
time, drum brakes are not to be adjusted. Only
adjust the main cable tightener since brakes are
adjusted yet to the rated installation value.

Figure 94

STEERING ANGLE SENSOR

Replacing

REPLACING THE ESP COMPONENTS

Some modifications or repairs affecting the ESP system
components require a specific calibration procedure.

The repairs that require such procedure are detailed as
follows:

- replacing the electronic control unit (integrated into the

electrohydraulic modulator) of the system’s braking
apparatus;

- replacing the steering angle sensor fitted inside the

steering wheel;

- replacing the longitudinal acceleration sensor.

Replacing the yaw sensor requires no calibration.

NOTE

Calibration

With both the steering-wheel and the wheels in straight position (after checking toe-in), you will obtain the sensor “zero”
condition through the diagnosis instrument, i.e. you will assign its absolute zero position.
Use a diagnosis instrument to clear the errors.
Carry out a road test, to make the control unit verify whether errors are still found. Drive along a straight road at a constant
speed. Steer to the right and then to the left several times, after making sure you do not endanger other drivers.

Drive back to the service centre, then use a diagnosis instrument to verify that the anomaly is no longer found.

NOTE

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NOTE

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Calibration must be carried out with the vehicle on a flat
ground.
Assign the sensor “zero” position by means of the diagnosis
instrument.
Always clear the errors (if any) found in the control unit
memory by means of the diagnosis instrument.
Carry out a functional road test to verify whether errors are
still found.
This consists of driving the vehicle to a slight slope and
subsequently verifying whether the vehicle is kept braked
over 2.5 seconds.
Drive back to the service centre, then use a diagnosis
instrument to verify that no anomaly is found any longer.

Re-attachment is carried out by reversing the order of
detachment operations. Also follow the advice below:

Figure 94

Removal

- never change the sensor position and fastening points.

The sensor features an offset position compared with
the vehicle centre line, which must not be modified.

- After re-attachment has been completed, follow the

calibration procedure described below.

Calibration

Disconnect electric connection (3).
Unscrew the two sensor (2) fastening screws (1).
Remove sensor (2).

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526741104

LONGITUDINAL ACCELERATION SENSOR

Refitting

Disconnect the battery cables in the engine compartment.
Take off the instrument board covering.

Figure 95

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Iveco Daily Euro 4. Manual - part 218