Iveco EUROCARGO, Instructions Manual

Page: 68 / 226

40
EUROCARGO Euro 6
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CHASSIS INTERVENTIONS
CHASSIS INTERVENTIONS
2.8
GEARBOX MODIFICATION
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Printed 603.95.747
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1st Ed. - Base 12/2013
Note Usually, the fork universal joints of the same shaft must not be rotated.
Pipe thickness
Valid tube thickness is usually not possible.
In fact, pipe thickness depends on the torque that the original shaft must transmit, as well as on the specifications of the transmis-
sion line (torque, power train ratio, axle loads or drive axles).
If using a pipe with a greater diameter than the original, thickness should in theory be reduced until reaching the same torsional
capacity; nevertheless, the dimensions of the fork male-end, need for adaptor rings, and the dimensions of pipes on the market
must also be taken into account.
Hence, the pipe thickness must be established on a case to case basis in relation to the dimensions of the driver shaft (e.g. cardan
joint size), in concert with the drive shaft Manufacturer authorised shops.
Minimum operating length (from flange to flange) must be at least 800 mm for sliding shafts and 700 mm for intermediate shafts.
Table 2.13 - Maximum possible lengths
Dimensions
of the
hook
outer diameter
x thickness
[mm]
Maximum propeller shaft speed [rpm]
2500 2700 2900 3300 3800
Maximum possible lengths LG to LZ [mm]
2030 90 x 3 2060 1960 1900 1760 1635
2035 100 x 3 2170 2100 2000 1850 1710
2040 120 x 3 2420 2350 2220 2070 1850
2045 120 x 4 2420 2360 2220 2070 1900
▶
The maximum lengths obtainable that are indicated above refer to original shafts; plan for
shorter lengths (-10%) for sections obtained after machining.
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 2.21) 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
25 mm between minimum operating length and maximum sealing length; in opening, a covering must be guaranteed between the
shaft and the sleeve of approx. 2 times the diameter of the spline shaft.