Iveco DAILY M.Y. 2012, Body Builder Instructions

Page: 57 / 252

CHASSIS MODIFICATIONS
2-31
D
AILY
Printed 603.95.241 Base — 02/2012
Application of a supplementary axle
Pipe thickness
It is normally not possible to indicate a valid pipe thickness.
In fact, the thickness of the pipe depends on the torque to be transmitted by the original shaft, as well as on the constructive setting
of the transmission line (driving torque, ratios in the kinematic chain, load on the driving axle or axles).
If using a pipe with a larger diameter than the original one, the thickness must be reduced in theory until reaching the same torsional
capacity; however also the dimensions of the fork male must be taken into consideration as well as the need for adaptor rings or
the dimensions of commercially available pipes.
The thickness of the pipe must be agreed upon on a case by case basis, depending on the dimensions of the propeller shaft (e.g.
dimensions of the universal joint), with the authorised workshops of the propeller shaft manufacturers.
The minimum operating length (between flanges) must not be less than 600 mm for sliding shafts and 300 mm for intermediate
shafts.
Table 2.16 - Implementable transmission characteristics
CRITICAL TRANSMISSION SPEED 1410 - PIPE
∅
76.2 x 2.4 mm
Max
p
e
rm
itte
d
rotati
on
sp
e
e
d
(r
p
m
)
Distance between LV universal joint centres (mm)
CRITICAL TRANSMISSION SPEED 1310 - PIPE
∅
88.9 x 1.65 mm
Max
p
e
rm
itte
d
rotati
on
sp
e
e
d
(r
p
m
)
Distance between LV universal joint centres (mm)
CRITICAL TRANSMISSION SPEED 1310 - PIPE
∅
76.2 x 2.11 mm
Max
p
e
rm
itte
d
rotati
on
sp
e
e
d
(r
p
m
)
Distance between LV universal joint centres (mm)
117798
!
The maximum reachable lengths indicated above refer to the original shafts; foresee smaller lengths
(-10%) for the segments obtained by conversion.