5.2.1. Stabiliser system and ground conditions
Always:
• Make sure that the ground can support the load that the
stabiliser leg imposes on the ground. (*)
• Make sure that the ground is not undermined.
• If the ground is not sufficiently compact and resistant,
add an extra support plate under the stabiliser legs.
• Use the extra support plates that are large and firm
enough for your crane model.
The maximum permitted ground inclination under
the stabiliser leg plate is 5º.
(*) The maximum load that the stabiliser leg can apply to the ground is:
Crane
model
Max. reaction
(Rmax)
[daN]
Pressure (*1)
[MPa]
Plate area
[m
2
]
Standard plate
dimensions (*2) (*3)
[m]
175.2 7100 3.13 Disk: 0.0227
NOT NECESSARY
215 11900 3.78 Disk: 0.0314
265 14800 1.65
0.09 0.3 x 0.3
315 14800 1.65
395 19000 2.11
525 18945 2.10
685 23000 2.55
955 25500 2.83
1000 32000 3.55
1255 27000 3.00
1405 28000 3.11
1855 33500 3.72
2055 36500 1.01
0.36 0.6 x 0.6
2255 42000 1.17
2655 48000 3.1 Disk: 0.15 NOT NECESSARY
(*1) Pressure on the ground surface.
(*2) Plate dimensions according to the standard EN 12999-2011 (P<4 MPa). Standard supply.
Starting crane operation
82 EFFER 265-315-395-525 Progress 2.0 CE
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