Sling length
Always attach the load using the shortest possible sling.
The angle between the legs of the sling must not exceed
120°. The maximum working load, (usually known as the
working load limit (WLL) in standards) of a multi-legged
sling for general purposes, is calculated by multiplying the
WLL of a single leg by a mode factor (refer to the table).
Max angle to the vertical of any
sling leg (degrees)
Mode factor two
legged sling
Mode factor three and
four legged sling
0-45 1.4 2.1
45-60 1.0 1.5
If the angle between the legs of the sling is more than 90°, do not hang the slings directly on the
hook. Use a ring hanging from the hook to attach the sling.
NOTE
These instructions do not replace the instructions provided by the chain
manufacturer.
Working close to the load
Always try to lift the load with the extension boom retracted,
however not completely. The crane then has the greatest
lifting capacity. Place the vehicle as close as possible to the
load.
Working below ground level
If you have to load or unload below the level of the ground:
keep the 1st boom angle to about 10º to 30° above the
horizontal plane.
Safety precautions and warnings
32 EFFER 265-315-395-525 Progress 2.0 CE
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