ASSEMBLY INSTRUCTIONS, USE AND MAINTENANCE — technical document
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www.palicampion.it – prescrizioni assemblaggio tronchi ad incastro – rev130616 – Pag. 1 di 2
INSTRUCTION FOR OVERLAPPING POLYGONAL CROSS
SECTION ELEMENTS
IMPORTANT: The prescription listed below concern the operation to be done for the overlapping
of the polygonal sections. IN ADDITION TO THE FOLLOWING INSTRUCTION YOU
HAVE ALWAYS TO REFER TO THE WORKSHOP DRAWING GIVEN WITH THE
ORDER WHICH MAY CONTAIN MORE INFO ACCORDING TH THE SPECIFIC CASE
Put the masts on wooden edges in such a
way that the longitudinal welding line of
each shaft coincides with that of the next
one. Before proceeding with the
assembly You need to be sure that the
overlapping areas are free from gravel
pebbles or dirt (which may be enter
during unloading / handling / storage
phases) that can cause problems during
the forced overlapping phases.
The assembly of the masts is made by using 2-
tir-for (pull and lifting machines) hooking at
d
the end of the section ( as mentioned in the
figure) or on the purpose made brackets welded
D along the shafts, starting, in the case of mast in
3 or more elements, to assemble the base
section with the next one and proceeding
gradually up to the top section.
The overlapping must be forced up to refusal,
Nominal but with a strength sufficient bu not bigger than
overlapping
see drawing
the maximum overlapping force mentioned in
the drawings and verification reports.
The maximum overalapping force can be
calculated approximately with the following
simplified formulas.
Fmax(kg) < 43 x (D-d) x th. female section
www.palicampion.it – prescrizioni assemblaggio tronchi ad incastro – rev130616 – Pag. 2 di 2
For masts having big diameters or big thickness the overlapping must be done using hydraulic TIR-
FOR welded to the purpose made brackets welded on the shaft itself:. Overlapping must be done up
to refusal respecting the overlapping length mentioned in the workshop drawings.
D d
Nominal
overlapping
see drawing
The overlapping must be forced up to refusal, but with a strength sufficient bu not bigger than
the maximum overlapping force mentioned in the drawings and verification reports.
The maximum overlapping force can be calculated approximately with the following
simplified formulas.
Fmax(kg) < 43 x (D-d) x th. female section