GENERAL RULE
S
700+smgr.fm
PAGE 23
S
AF
ETY M
AN
U
AL
DISTANCE
B
DISTANCE
A
THE ONE-TO-ONE RULE:
For every 1 foot of vertical drop, stay back
from the base edge 1 foot. (Distance "B"
must be equal to or greater than distance "A")
Base edge
1to1+.eps
Figure 28
The one-to-one rule
X
Even though the base edge is at a 1-to-1 ratio
with the outrigger
,
this cliff could collapse
.
Outrigger force is transmitted at a 45 degree
angle
,
and there is no material to support the
force at point X
.
WARNING!
Base edge
2.eps
Figure 29
Watch out for this situation
!
DISTANCE
B
DISTANCE
A
Sometimes you need more than 1-to-1:
If the surface is loose rock, wet clay, or other
unstable soil, distance may need to be
increased. Follow manufacturer’s instructions.
2to1+.eps
Base edge
Figure 30
Extra distance may be
required if soil is unstable
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Страница 16: ...16 Introduction SPB Operation Manual...
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Страница 22: ...22 Specifications SPB Operation Manual SPB 35 Working Range Diagram SPB 35 235...
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Страница 122: ...30 Overview S 39 41 SX Operation Manual...
Страница 154: ...62 Operation SPB Operation Manual Lifting Instructions 1 of 3...
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