differ from these, or for OFF ROAD use, please consult customer services
beforehand. When using several coupling devices and components, the
one with the lowest D-value should be observed.
Calculation example
The fifth wheel kingpin should be mounted on an articulated trailer with a
permitted total weight of 31 t, which is pulled by a tractor with a
permitted total weight of 21 t. The fifth wheel vertical load has a weight
of 14 t.
Sought: D-value:
The calculated D-value is 100.8 kN. The
fifth wheel kingpin to be used must
therefore have a D-value of at least 100.8
kN.
5.3 Welding the flange
Careful!
•
The welding work must only be carried out by
authorised trained personnel.
•
The fifth wheel kingpins must be installed flat and in
the centre, the angled seat must also be checked.
•
The pins must be protected against welding splatter.
Welding procedure
When welding the mounting flange, the following welding procedures
and weld materials are permitted:
• Welding procedure
– MAG C (135)
• Protective gas
– M21 or 92%Ar + 8% CO
2
• Weld material
– according to EN ISO 14341: 2008
KP-0008
Fig. 5
· D-value calculation example
5 Installation
19
XL-KP11695BM-en-DE Rev. A · 02.2015 · Errors and changes excluded · © SAF–HOLLAND
en
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