Iveco NEW DAILY, Instructions Manual

Page: 53 / 240

NEW DAILY
–
CHASSIS INTERVENTIONS
CHASSIS INTERVENTIONS
2.8 GEARBOX MODIFICATION
29
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Printed 603.95.789
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1 Ed. - Base 02/2014
Positioning the sections
The transmissions that comprise several sections, each axle must be of approximately the same length. Generally speaking, the
distance between an intermediate shaft and sliding shaft (see Figure 18) must be no greater than 600 mm, while between two
intermediate shafts this difference must not be greater than 400 mm. As regards sliding shafts, there must be a minimum margin
of 20 mm between minimum operating length and maximum sealing length.
In compliance with effective travel, position the static set-up as close as possible to the central zone.
173260
Figure 18
1. Drive shaft, clutch, gearbox
2. Cardan shaft with sliding
3.
Shaft support
4. Cardan shaft
5. Rear axle casing tilt (static load)
6. Rear axle casing tilt (max compression)
7. Rear axle casing tilt (no load on vehicle)
8.
The cardan shaft (sliding) and rear axle casing axis must
have the same angle x
°
compared to horizontal
The intermediate shaft and the axle casing axle must be aligned.
Angle may vary by a maximum of 1
°
compared to the engine-clutch-gearbox axis and this may be achieved by inserting a wedge
between the rear axle casing and the spring.
The maximum angle of the rear axle casing must in any case be between 4
°
and 6
°
(5
°
nominal) compared to horizontal.
Note For vehicles equipped with the "antibooming" solution (with a flexible coupling on gearbox output), the following geometric restric-
tion must be considered: the relative angle between the gearbox axis and the section of shaft on gearbox output must not exceed
1
°
. If it is between 1
°
and 1
°
30' it must be authorised by IVECO. If it is more than 1
°
30' it should be assumed as not authorised.
When wheelbase lengthening is substantial, it may be necessary to mount an additional intermediate section, as indicated in Figure
19. In this case, make sure that the engine-gearbox axle, the second intermediate shaft and the axle casing axis when in static load
are all aligned with the same tilt.
173261
Figure 19
1. Drive shaft, clutch, gearbox
2. Intermediate shaft
3. Intermediate shaft bearing
4. Cardan shaft (sliding)
5. Cardan shaft (fixed part)
6. Rear axle casing tilt (static load)