Iveco EuroCargo (12 to 26 t). Manual — part 96
E
URO
C
ARGO
T
ECTOR
12-26 t
AXLE IN TANDEM
3
Base - February 2003
Page
PD 145 E (R 2468) (INTERMEDIATE)
5
. . . . . . . . . . . .
PR 140 E (R 0868) (REAR)
53
. . . . . . . . . . . . . . . . . . . . .
E
URO
C
ARGO
T
ECTOR
12-26 t
AXLES IN TANDEM (INTERMEDIATE)
5
Base - February 2003
Page
DESCRIPTION
7
. . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS AND DATA
7
. . . . . . . . . . . . .
TIGHTENING TORQUES
9
. . . . . . . . . . . . . . . . .
TOOLS
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXPERIMENTAL TOOLS
18
. . . . . . . . . . . . . . . . . .
INTERMEDIATE AXLE DISCONNECTION/
RECONNECTION
(with Hendrickson suspensions)
21
. . . . . . . . . . .
-
Disconnection
21
. . . . . . . . . . . . . . . . . . . . . . . . .
-
Reconnection
21
. . . . . . . . . . . . . . . . . . . . . . . . .
SERVICING INTERMEDIATE AXLE ASSEMBLY
PD 145 E (R 2468)
23
. . . . . . . . . . . . . . . . . . . . .
AIR BREATHER REMOVAL-REFITTING
23
. . . . . . .
SERVICING WHEEL HUBS
23
. . . . . . . . . . . . . . . . .
-
Checking wheel hub components
24
. . . . . . . . . .
ASSEMBLING WHEEL HUBS
25
. . . . . . . . . . . . . . .
REMOVING DIFFERENTIAL GEAR - TRANSFER
BOX (with rear axle on stand 99322215)
28
. . . .
REFITTING DIFFERENTIAL GEAR - TRANSFER
BOX (with rear axle on stand 99322215)
28
. . . .
REPAIRING INTER-AXLE UNIT
29
. . . . . . . . . . . . .
-
Dismantling inter-axle unit
29
. . . . . . . . . . . . . . . .
-
Checking inter-axle unit components
31
. . . . . . . .
-
Fitting inter-axle unit
31
. . . . . . . . . . . . . . . . . . . .
-
Adjusting drive input shaft bearing end float
33
. . .
-
Adjusting differential lock and inter-axle
control pin end-stop
34
. . . . . . . . . . . . . . . . . . . .
REPAIRING MAIN DIFFERENTIAL-DISMANTLING
DIFFERENTIAL CASING
34
. . . . . . . . . . . . . . . .
-
Dismantling gear cage
38
. . . . . . . . . . . . . . . . . . .
-
Checking differential components
38
. . . . . . . . . .
-
Assembling gear cage
39
. . . . . . . . . . . . . . . . . . . .
E
URO
C
ARGO
T
ECTOR
12-26 t
6
AXLES IN TANDEM (INTERMEDIATE)
Base - February 2003
ASSEMBLING DIFFERENTIAL CASING
40
. . . . . . . . .
- Calculating bevel pinion position in differential
casing
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPUTATIONAL EXAMPLES
41
. . . . . . . . . . . . . .
- Adjusting the cap gap
44
. . . . . . . . . . . . . . . . . . . .
CORRECTING THE CROWN WHEEL AND
PINION CONTACTS (AFTER ASSEMBLY)
46
. .
REMOVING-SERVICING-REFITTING
INTER-AXLE OUTPUT SHAFT
49
. . . . . . . . . . .
E
URO
C
ARGO
T
ECTOR
12-26 t
AXLES IN TANDEM (INTERMEDIATE)
7
Base - February 2003
SPECIFICATIONS AND DATA
Axle type:
PD 145 E (R 2468)
Bearing axle with simple reduction,
with
a
pneumatic
control
differential locking device
MAIN DIFFERENTIAL ASSEMBLY
Crown wheel and pinion assembly
reduction ratio (pinion/ring gear
teeth number)
1/5.86 (7/41)
1/5.29 (7/37)
1/4.63 (8/37)
Bevel pinion bearings
2 taper roller bearings
Bevel pinion bearing rolling torque
New bearings
Nm
kgm
Reused bearings
Nm
kgm
1.12 to 5.08
0.112 to 0.508
1.68 to 3.39
0.168 to 0.339
Bevel pinion bearing pre-load
adjustment
through shims
Thickness of bevel pinion bearing
pre-load adjusting rings
5.30-5.33-5.35-5.38-5.40-5.50-5.60
5.70-5.80-5.90-6.00-6.10-6.13-6.15-6.18-6.20
Clearance between pinion and ring
gear
mm
new gears
reused gears
recover working conditions
0.20 to 0.46
Clearance adjustment between
pinion and ring gear
Through ring nuts
The intermediate axle is a bearing axle type with a simple re-
duction; it consists of a box made in metal sheet, housing a re-
duction differential and a main differential. Drive transmission
from the reduction to main differential is achieved through a
helical gear pair. The reduction differential is made up by a drive
input shaft keying: the front support, the oil pump, the driving
gear housing the front crown wheel and side pinion assembly;
the rear crown gear is housed on the axle box and keyed on
the drive output shaft.
A sliding sleeve is mounted on the rear crown wheel to lock
the differential; the sliding sleeve is driven by a pneumatic de-
vice through a fork.
Taper roller bearing axial clearance is adjusted by inserting
shims between front and wheelwork support; the main differ-
ential is made up by a pair of bevel reduction gears with helical
toothing (pinion — ring gear assembly) and a wheelwork box
(side pinion — crown wheel assembly).
The adjustment of the bevel pinion assembly is made through
adjusting rings placed between the two taper roller bearings.
You can also adjust the bevel pinion position with reference to
the ring bevel gear by changing the thickness of the pack of the
rings, which are inserted between the taper bearing under the
head and the bevel pinion support.
The wheelwork box is supported by two taper roller bearings
and can be adjusted axially through two threaded ring nuts.
The axle is provided with a pneumatic control differential lock-
ing device.
The wheel hubs are supported by two tapered-roller bearings
floating on a post and adjustable by means of a threaded nut.
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