Winterthur Gas X40-B, Руководство по обслуживанию

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Maintenance
0012 − 1/A1
Winterthur Gas & Diesel Ltd.
5/ 5
3. Lifting Equipment − Attach and Remove
WARNING
Danger: Do not go under a load that hangs. If the lifting equipment
has a failure, the load can kill you or cause serious injury.
Read the data that follow:
D A sling with one strand has the total weight of the load ( Fig. 3 ).
D With two strands of equal distance from the center, each strand has half the
weight of the load when the sling is in a middle position.
D With four strands of equal distance from the center , each strand has one quarter
of the load when the sling is in a middle position.
One Strand:
Total Load
Weight
Two Strands:
Half the Load
Weight
Four Strands:
One Quarter of
the Load Weight
Strands have
more Tension
Strands have
less Tension
°
°
Fig. 3: Strand Angles
Note: A large angle between the strands gives more tension. A small angle be-
tween the strands give less tension.
Put a flat piece of softwood between the sling and the component to prevent
movement of the load (e.g. pipes, shafts etc).
Use a wooden pallet or thick cloth to prevent damage to slings, ropes etc. Sharp
edges can cut steel cables.
Make sure that you can always keep control of the load.
When slings or ropes are wound around the load two times, friction increases. This
prevents movement of loads that have oil on their surfaces.
Hemp rope strands wound around the crane hook prevent movement. Do not wind
steel ropes around the hook. As an alternative, cross the steel ropes.
Hold the ropes in the flat of your hands and keep your fingers straight.
Hold the load at the side. Do not hold the load at the bottom.
Always lower the load on to a flat area of sufficient dimensions.
2016
Wire Rope Slings, Span-sets, Eye Bolts, etc.