Iveco Stralis MY 2016, Инструкция для тренажера

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NEW STRALIS MY2016
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GUIDELINES FOR BODYBUILDERS
APPLICATIONS OF SUPERSTRUCTURES
3.3 CONNECTION BETWEEN CHASSIS AND SUBFRAME
15
–
Printed 692.68.697
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5 Ed. - Base 03/2019
Connections with greater elasticity
When the connection needs greater flexibility (e.g. vehicles with high stiffness of the superstructure such as vans, tanks, etc., used
on winding roads or in poor conditions, vehicles for special use, etc.), hardware of the type indicated in Figure 11 should be adop-
ted in the area behind the driver's cab. Brackets accompanied by rubber plugs (1) or coil springs (2) should be used.
193872
Figure 11
1. Rubber block 2. Coil spring
In the case of superstructures that generate high bending and twisting moments (e.g. a crane behind the cab), the subframe must
be properly sized to support them.
The elastic element characteristics should be suited to the stiffness of the superstructure, the wheelbase and the type vehicle use
(irregular road conditions).
Using rubber plugs, use materials that ensure good elasticity over time; provide adequate instructions for the periodic control and
eventual restoration of the torque.
If necessary, the total capacity of the connection can be restored by installing cut-resistant hardware in the rear suspension area.
In versions where the vehicle is lifted by hydraulic stabilisers (e.g. cranes, aerial work platforms), limit the collapse of the elastic ele-
ment (30
–
40 mm) to ensure sufficient cooperation of the subframe and avoid excessive bending moments on the original chassis.
Connections with clevis fasteners or clamps
Figure 12 shows the main constructions of this type.
In this case the Bodybuilder must interpose a spacer (preferably metal) between the wings of the two side members and in corres-
pondence to the clevis fasteners, in order to avoid the bending of the wings under the pull of the clevis fasteners.
In order to drive and better contain the transverse direction of the structure added to the chassis, this type of fixing can be com-
pleted with the addition of plates welded to the subframe as shown in Figure 13.
The characteristics of this connection advise against a general integral use on the vehicle; in any case, to give the added structure the
suitable containment in the longitudinal direction as well as adequate stiffness, it is necessary to integrate the fastening to the rear
part with longitudinal and transverse sealing plates.
For this purpose, it is also possible to use connections by means of screws at the rear end of the chassis as shown in Figure 14.