Iveco NEW DAILY, Instructions Manual

Page: 112 / 240

26
NEW DAILY
–
APPLICATIONS OF SUPERSTRUCTURES
APPLICATIONS OF SUPERSTRUCTURES
3.8
INSTALLING A CRANE
–
Printed 603.95.789
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1 Ed. - Base 02/2014
Table 3.8 - Crane behind driver's cab (counter chassis secured with shelves or flanges)
Model
Frame section
[mm]
Total torque M
G
max [kNm]
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
Minimum value of the modulus of resistance of the counter chassis section W
x
[cm 3 ] (1)
with yield point of the material equal to 360 N/mm 2
35C, 40C 174x70x4 21 36 57 89 E
45C, 50C 174x70x4 21 36 57 89 105 E
60C, 65C, 70C 174x69x5 19 21 46 57 89 105 E
Table 3.9 - Cranes mounted behind driver's cab (counter chassis secured with shear resistant plates)
Model
Frame section
[mm]
Total torque M
G
max [kNm]
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
Minimum value of the modulus of resistance of the counter chassis section W
x
[cm 3 ] (1)
with yield point of the material equal to 360 N/mm 2
35C, 40C 174x70x4 19 21 31 57 E
45C, 50C 174x70x4 19 21 31 27 89 E
60C, 65C, 70C 174x69x5 19 19 21 46 57 89 E
Close the reinforcement section in the crane assembly area.
E = To be checked case-by-case. Send IVECO technical documentation with verification of stress and stability.
(1)
When a higher modulus of resistance is required for the superstructure also use the latter for the crane.
Note
For the dimensions of the profiles see Table 3.2.
Crane at rear overhang
The counter chassis should extend for the entire length of the vehicle to the rear part of the cab; The dimensions of the longitud-
inal sections are shown in Table 3.10.
Considering the particular distribution of weights on the vehicle (load concentrated on overhang) and to ensure the necessary tor-
sional stiffness for good performance on the road and during the working phase of the crane, the counter chassis must be suitably
stiffened in relation to the crane capacity. Boxed sections and bracing must be used (see Chapter 3.2 (
➠
Page 8)) in correspond-
ence with the rear suspension and for the entire rear overhang (distance L
V
) - see Figure 22. The passage between box section s
and open sections must be well fitted as shown in Figure 3.
Shear resistant connections (a sufficient number of plates spaced at a maximum distance of 400 mm) must be used in the box
section for fastening to the chassis, given that elastic fastenings are used on the front end. Check that the ratio between the front
axle and rear axle weight respects the limit defined for each vehicle under any load condition (see Chapter 1.15 (
➠
Page 11)).
Considering that the necessary counter chassis rigidity depends on various factors (e.g. crane capacity, resting surface dimensioning,
vehicle tare weight, chassis overhang), instructions valid for all situations cannot be given. For this reason body builders shall, if ne-
cessary, proceed also by testing the vehicle's stability. If the test results show that rigidity is insufficient, the body builder will adopt
suitable precautions so as to obtain correct realisation.
The rear crane overhang (distance L
k
see Figure 22) must be as limited as possible (not exceeding 40% of the wheelbase) in order
to ensure good vehicle handling characteristics and acceptable levels of chassis stress.