Installation manual | QuadroLift
10
Use the following formula to calculate the height of the extension pipe:
4.2 Placement of extension pipe with connection openings
4.2.1 Calculation of the required height
Height
of cone
11 cm
H
ei
gh
t o
f e
xt
en
si
on p
ip
e
D
ep
th o
f c
ov
er
1.
20 t
o 4
.0 m p
os
si
bl
e c
ov
er
Height of
shaft cover
4.2.2 Cutting the extension pipe (without extension)
Top edge
of terrain
Temporary construction site cover
To cut the extension pipe to length, measure the height from
the top (temporary construction site cover) downwards.
NB
Cut the extension pipe under no
circumstances to length at the top
(frost protection depth).
You must always cut the pipe in the
corrugation trough.
H
ei
gh
t o
f e
xt
en
si
on p
ip
e
ap
pr
ox
. 8
0 c
m
2 c
or
ru
ga
tion
s
re
qu
ire
d
✓
✗
✓
Height of extension pipe =
height of cover – height of shaft cover – height of cone (11 cm)
