Iveco EuroCargo (12 to 26 t). Manual — part 137

Figure 47

Figure 48

Figure 49

Figure 50

Use tool 99347047 (1) and part (2) to unlock swivel axle pin
(3). Remove the tool and withdraw the pin.

36422

36423

Fit stub axle (1) to axle (4) and insert the pin into its housing.
Apply tool 99374405 (2) to the stub axle and secure by
means of the lower cover retaining screws. Tighten to a
suitable torque.
Press-fit the pin into the taper seating in the axle, tightening
pressure screw (3) to a torque of 15 to 16 daNm.
Remove tool 99374405 from the stub axle.

36420

36424

Position lower cover (3) complete with thrust bearing (1)
and adjustment shims (2). Tighten screws (4) to the specified
torque.
Repeat the same operations for the opposite axle.

Insert upper cover (2) complete with seal into its housing;
position grease nipple as shown in the figure, then insert
retainer circlip (1) making sure that the circlip expands
correctly.

Refitting

Before installing the pin, make sure that the taper
seating in the axle and the surface of the pin are
completely clean and dry to avoid oil films which
would facilitate rotation of the pin in its seating during
the installing operation.

Before assembling, lubricate the lower cover thrust
bearing with Tutela MR2 grease.

!

!

Checking and adjusting play between stub axle
and axle

Figure 51

Lift the swivel axle to bring it into contact with the lower axle
facing. Use feeler gauge (1) to check clearance between upper
facing of swivel axle and axle. This should be between 0.10
and 0.35 mm.

36425

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12-26 t

92

FRONT AXLE 5871/5

Base - February 2003

When the clearance between the upper facing of the swivel
axle and the axle has been checked, confirm by means of a
feeler gauge (1) that there is a clearance between the lower
facing of the swivel axle and that of the axle of not less than 0.25
mm.

Figure 52

36426

Adjustment of the clearance, if any, is obtained by
replacing the adjustment shims with others supplied
as spares having suitable thicknesses.

For spare shim thicknesses, see “CHARACTERIS-
TICS AND DATA” table on page

Grease the lower and upper joint assembly with MR2
grease making sure that the grease escapes through
the deflector lips of the seals.

Figure 53

60887

Steering knuckle bearing replacement (5) is made using for
their disassembly and assembly beater’s elements (1-2-3)
99374527 and handle 99370007 (4).

Use element (1) and handle (4) to disassemble the sealing
ring (8) and the roller bearings (6-7) on the upper side.

Use element (3) and handle (4) to disassemble the sealing
ring (9) and the roller bearings (10-11) on the lower side.

520615

STEERING KNUCKLE PIN
BEARING REPLACEMENT

60890

With beater 99374173 (4) and handle 99370007 (3),
assemble sealing rings (2 and 5) in stub axle (1).

60889

Roller bearing assembly (7):
use element (1 and 2) and handle (4).
Roller bearing assembly (6):
use element (2) and handle (4).
Roller bearing assembly (8):
use elements (3 and 2) and handle (4).
Roller bearing assembly (9):
use element (2) and handle (4).

Figure 54

Figure 55

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12-26 t

FRONT AXLE 5871/5

93

Base - February 2003

520618

CHECKS AND MEASUREMENTS
ON AXLE BODY

Apply two rods (as shown in Figure 56, ref. 1) complete with
cones (3) in the holes for knuckle pins; press the cones and
lock them in position on the rods using relevant screws.
Insert the two locating dowels (2) into the housings in the
leaf spring seating surface.

Checking surface flatness of leaf spring seating
with respect to holes for kingpins.

Apply bases (5, Figure 57) to planes (6) using protractors and
fit into centring dowels.

!

Fit sliding bar (2) to protractor rods (4), adjusting the length
so that the shaped ends come into contact with rods (1).
Lock screw of clamp (7) and screws (3) securing the
protractors to the rods (4).

Before fitting the bases with protractors, make sure
that the seating faces have no traces of paint or
roughness.

Figure 56

Figure 57

Figure 58

Check the angle of distortion, if any, on the graduated sectors
of the protractors shown by the arrows.
Obviously the protractor pointers do not record any angular
deviation when the flatness of the leaf spring seating surfaces

is correct with respect to the holes for the kingpins. Remove
the sliding bar and the bases with protractors used for the
inspection.

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12-26 t

94

FRONT AXLE 5871/5

Base - February 2003

Figure 59

Figure 60

Checking inclination of holes for kingpins

Fit supports (3) with protractors to rods (1) and screw up
screws (2) without tightening them.
Insert transverse link rod (4) and fully screw up screws (2)
which secure the supports in contact with rods (1).

The value for inclination of the holes for the kingpins should
be 7

o

.

Read off the value of the angle of kingpin inclination from the
relevant graduated sectors (2) in line with the pointers (1).

E

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12-26 t

FRONT AXLE 5871/5

95

Base - February 2003