DAILY MCA2014 4x4 ‒ BODYBUILDER INSTRUCTIONS
APPLICATIONS OF SUPERSTRUCTURES
3.9 INSTALLATION OF TAIL LIFTS
25
– Printed 603.95.994 – 1 Ed. - Base 05/2015
M [Nm] = W
L
• C + W
TL
• D for tail lifts with stabilisers
To compensate for frame flexing, which is inevitable when the tail lift is in operation, the bodybuilder may use reinforcement struc-
tures with larger dimensions than those indicated in Table 3.8.
This consideration applies even more in the case of high and non-standard overhangs; in this case the necessity to adopt the stabil-
isers must also be verified.
Table 3.8 - Installation of tail lifts
Models Wheelbase [mm]
Tail lift capacity in kN (kg)
3
(300)
5
(500)
7.5
(750)
10
(1000)
Minimum value of the section modulus of the counter chassis section W
x
[cm
3
]
(1)
with yield point of the material equal to 360 N/mm
2
35S15/17, 55S15/17 3050, 3400 21 21 26 + S E
E = To check on a case by case basis (send the technical documentation with stress and stability checks).
S = Application of stabilisers necessary.
Note
For the dimensions of the profiles see Table 3.2.
The possibility of using materials with superior mechanical characteristics requires verification of the total moment of resistance of
the chassis plus counter chassis.
▶ Carefully assess any variations in the stability and attitude of the vehicle caused by suspension
compression and chassis flexing during all stages in the operation of the tail lift. Always evaluate
whether using stabilisers is advisable even if their use is not rendered necessary by the stresses
sustained by the chassis.
The stabilisers must be attached to the support structure of the tail lift, and should be preferably hydraulically operated.
▶ The stabilisers must be put into operation in all tail lift loading conditions.
When installing electro-hydraulic tail lifts, ensure that the capacity of the batteries and the power of the alternator are adequate
(see Chapter 5.4 ).
The bodybuilder is also responsible for:
● any modifications to the underrun cross member or the arrangement of another new type (see Chapter 2.20 ( ➠ Page 34));
● the observance of the visibility of the rear lights,
● the observance of the overhang angles,
● the positioning of the tow hook,
based on the various national legislation.
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