Iveco EUROCARGO, Инструкция по эксплуатации

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8
EUROCARGO Euro 6
–
CHASSIS INTERVENTIONS
CHASSIS INTERVENTIONS
2.2
DRILLS ON THE CHASSIS
–
Printed 603.95.747
–
1st Ed. - Base 12/2013
Hole position and size
The new holes must not be drilled into the areas subjected to greater stresses (such as spring supports) or where the side member
section varies.
Hole diameter must be suited to sheet metal thickness but cannot exceed 15 mm (unless otherwise stated). The distance of the
hole axle from the edge of the side member must never fall below 40 mm (for chassis with thickness of 7.7 mm) or 39 mm (for
chassis with thickness of 6.7 mm), likewise, the hole axes must not be at a distance of less than 45 mm from each other, or from
the axes of existing holes.
The holes must be offset as in Figure 2.2.
The original hole layout must be maintained when moving spring supports or crossbars.
192342
Figure 2
(*)
valid with chassis thickness 7.7 mm, with chassis thickness 6.7 mm the measurement is equal to 39 mm.
Screws and nuts
We generally recommend the use of the same type and class of screws and nuts as those employed for similar anchorages on the
original vehicle (see Table 2.3).
Table 2.3 - Screws resistance classes
Resistance class Use
Breaking strength
[N/mm
2
]
Yield stress
[N/mm
2
]
8.8
Intermediate resistance screws (crossbars, shear
resistant plates, brackets)
800 640
10.9
High resistance screws (springs supports, stabiliser
bars and shock absorbers)
1000 900
Screws classed 8.8 and 10.9 must be well cleaned and, for applications using a screw with a diameter of
≤
6 mm; we recommend
protection FeZnNi 7 IV.
Screw treatment allowed is Geomet or zinc coating. Geomet treated screws are discouraged when using them in welding opera-
tions.
Use flange headed screws and nuts if there is sufficient space.
Use nuts with an anti-unscrewing system and keep in mind that the tightening torque must be applied to the nut.