OMCR B01.11, Руководство по эксплуатации и обслуживанию

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4. Use and maintenance manual B01.11
S. Maurizio C.se - 18/12/2020
www.omcr.it
3. USE
Refer to EN818-06 norm to define symmetric and asymmetric sling method: for asymmetric sling, the whole load
should be supported by only two rope/chain wings.
NOTE
Each lifting, handling or overturning operations must be executed by qualified and instructed
worker; the lifting, handling or turnover’ officers must use individual guard equipment.
WARNING
3.1
Before each lifting / handling / overturning officers have to choose the most suitable sling to
ensure a safe suspension with a correct load balance. A wrong sling method can modify the
real capacity load of the ropes and lifting accessories. In the following table you can verify
the reduction of the nominal capacity load related to the sling angles in order to preserve
the minimum safety factor.
WARNING
3.2
ANGLE
REDUCTION FACTOR OF THE
NOMINAL CAPACITY LOAD
0°≤
β
≤40°
1
40°<
β
≤50°
0.6
50°<
β
≤60° 0.4
SYMMETRIC SLING EXAMPLE
(RECOMMENDED CONDITION)
3.2.1 - LIFTING
G
G = Die load center
β
= Rope angle from vertical
NOTE: lifting with
β
>60° is not provided
DIE AXIS
DIE AXIS