Iveco Daily Euro 4. Manual — part 136

51858

Figure 1

DESCRIPTION

The rear axle is the load-bearing type with a single reduction
using a hypoid crown wheel and pinion.

The axle housing is made of pressed sheet steel with hot
pressed arms.

The bevel pinion is supported by two pre-lapped tapered
roller bearings to hold the bearing pre-load better.

The rolling torque of the bearings of the bevel pinion is
adjusted by changing the thickness of the adjustment ring
between the two tapered roller bearings.

In addition, it is possible to adjust the position of the bevel
pinion with respect to the ring bevel gear by changing the
thickness of the ring between the axle housing and the bevel
pinion rear bearing external ring.

The gear housing is supported by two tapered roller bearings.

The rolling torque of the bearings is adjusted with adjustment
rings between the spacer rings and the external rings of the
bearings.

The clearance between pinion and crown wheel is adjusted
by changing the thickness and/or position of the adjustment
rings, though the total thickness must be the same as that of
the adjustment rings removed.

The gear housing is composed of two half-housings.

It may be of two different sizes depending on the ratio of the
crown wheel and pinion.

The gearing of the differential is composed of four planetary
gears and two crown wheels.

The wheel hubs are keyed, with UNIT BEARINGS lubricated
for life, onto the arms of the axle housing.

The bearings need no adjustment.

The brakes are disc brakes with floating brake calipers.

The disc brakes are keyed onto the wheel hubs.

The brake calipers are secured with flanges fixed onto the
arms of the axle housing.

The parking brake is the drum type, built into the brake disc.

REAR AXLE 450511

55

D

AILY

E

URO