Iveco Daily Euro 4. Manual — part 127

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REAR AXLE NDA RS

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TOOL NO.

DESCRIPTION

99374092

Punch to fit external races of bearings (diameter 69

÷ 91 mm use

with 99370007)

99389819

Dynamometric wrench (0

÷ 10 Nm) with 1/4” square connection

99395728

Dial gauge with mounting to be used with the tools to determine
the thickness of adjustment of the bevel pinion

Figure 5

525010

REAR AXLE NDA - RS REMOVAL -
REFITTING

Removal

Refitting

For refitting, carry out the operations described for removal in
reverse order, taking the following precautions:

- Check the thread of the brackets joining the leaf springs to

the axle. If there are any irregularities, rectify the thread
(operation 500412) or replace the brackets.

- Bleed the air from the brake hydraulic system as described

under the relevant heading (operation 784010).

- Adjust the handbrake control ties as described under the

relevant heading (operation 502710).

- Lock the nuts or screws to the required tightening torque.

- The self-locking nuts must not be reused.

- The lubricating oil in the axle housing should be at the right

level.

- Check the state of the flexible pads (19) and replace them

if they have deteriorated (operation 500417).

108434

Position the vehicle on level ground and stop front wheels.
Loosen rear wheels securing screws.
Lift the vehicle from its rear side and position it on support
stands.
Position hydraulic truck under rear wheels. Remove wheels
securing screws and take them off the vehicle.
Unscrew nut (2) adjusting hand brake linkage. Release the
cables from the chassis by uncoupling check springs (1).
Unscrew screws (7) securing transmission shaft (8).
Disconnect electrical cables (15) of the sensors of brake pad
wear and phonic wheel rpm’s (6).
Unscrew nuts (12) securing shock absorbers (11).
Take hydraulic pipes (16) of brake system off the fitting on the
chassis. Such pipes will be removed together with real axle in
the end step of the disconnection from the vehicle.

!

In disconnecting the hydraulic pipes of brake circuit
and vapours breather, pay attention to any oil losses.
Prearrange suitable collectors in such a way that
brake liquid is not spread out into environment.
Avoid contact of liquid with skin and eyes. In case of
contact, wash abundantly with water.

Unscrew screws (3) securing rods (4) supporting stabilising bar
(5).
Disconnect rear axle oil vapours breather pipe (20).
Properly position a hydraulic jack provided with support
99370617 under rear axle.
Unscrew nut (17) securing leaf spring (9) to rod (18).
Unscrew nuts (13) of brackets (14) securing rear axle to leaf
springs (9).
Lower hydraulic jack and take out rear axle.

REAR AXLE NDA RS

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REAR AXLE NDA RS

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Check that the air breather (1) is not clogged; otherwise,
disassemble and clean it thoroughly before refitting.

Set the entire rear axle assembly on stand 99322215.

107854

107853

107985

107855

Figure 6

Figure 7

Figure 8

Figure 9

Take out the screws (1) and remove the brake caliper (2)
with its brake linings from the mounting.

Remove pin (1) centering/securing brake disk (2) to half shaft
(3). Take off brake disk (2).

Before positioning the rear axle assembly on the stand for
overhauling, drain off the oil by unscrewing the side plug of
the axle housing.

525010

OVERHAULING THE REAR AXLE
ASSEMBLY

!

The drive shafts, brake disc and calipers, air breather
and differential can all be removed and refitted even
with the unit mounted on the vehicle.

!

The identification data of the rear axle unit are given
on the plate (1) fixed near to the leaf spring
attachment support.

525013

Air breather disassembly - assembly

525030

Wheel hub overhaul

Disassembly

!

The caliper must not be violently knocked or
dropped.

Prevent the rubber caps coming into contact with
sharp metal tools.

Do not dirty or wet the rubber caps with mineral grease or
oil.

Do not dirty the pads with liquids or grease.

Do not operate the parking brake lever before mounting on
the disc: this makes the piston come out, decreasing the gap
between the two brake linings and jeopardizing wearability on
the disc.

Should this be done unexpectedly, it is necessary to take
down the brake linings and move the piston back with tool
99372236, taking the precautions given in the BRAKES
section.

Check brake disk as described in Brakes section. On
putting away the brake disk, do not damage phonic
wheel toothing.

NOTE

REAR AXLE NDA RS

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