Iveco Daily. Manual

Assembly

Figure 82

5027

Adjusting parking brake

(vehicles with parking drum brake)

52277

Figure 83

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:

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, Figure 82) 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);

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.

74991

Figure 84

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HYDRO-PNEUMATIC SYSTEM - BRAKES

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Base - May 2004

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.

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.

REPLACING THE ESP COMPONENTS

Calibration

STEERING ANGLE SENSOR

Replacing

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.

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.

Figure 85

102110

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

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

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

NOTE

Revi - February 2005

HYDRO-PNEUMATIC SYSTEM - BRAKES

AILY

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:

- 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.

Figure 86

Removal

Calibration

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

102315

526741104

LONGITUDINAL ACCELERATION SENSOR

Refitting

Figure 87

102316

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

Revi - February 2005

HYDRO-PNEUMATIC SYSTEM - BRAKES

AILY

Base - May 2004

Figure 88

Removal

Calibration

Disc onnect elec tric connection (2).

102317

526742104

YAW SENSOR

Refitting

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

Figure 89

Replacing the yaw sensor requires no calibration
procedure.

NOTE

Unscrew the two sensor (2) fastening screws (1) by using a
suitable wrench to remove the side right screw, considering that
the latter cannot be accessed easily. Then, remove sensor (2).

Take off glove compartment (1) on the passenger’s
side. If the vehicle is equipped with passenger’s
airbag, follow the safety rules indicated in the
relevant chapter of the “Steering” section.

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

Figure 90

102319

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Iveco Daily. Manual - part 338