EWIKON L2X, Руководство по эксплуатации

Страница: 23 / 88

23 HPS-III-Heißkanalsystem_Vorspann_BA_V-2-0_EN
Installation
z362-06 z362-04 z362-05
Picture 13: Lifting a load using one single
attachment point
(example: hot half in vertical position)
Picture 14: Lifting a load using 2 attach-
ment points, distributed between two evenly
stressed but sloping legs
(example: hot half in horizontal position)
Picture 15: Lifting a load using 2 attach-
ment points, distributed between two evenly
stressed but vertically stretched legs
(example: hot half in horizontal position)
z362-08 z362-09
Picture 16: How to lift a load correctly using
spacer bolts for attachment swivels
(L2X system)
Picture 17: How to lift a load incorrectly
using spacer bolts for attachment swivels
(L2X system)
RIGHT WRONG
F F
RISK OF
BREAKAGE
M M
3.
Is one single attachment point sufficient to lift the load vertically stretched or is more than one attachment point
necessary to lift the load?
•
Only for the transport of hot halves, nozzle sides or individual mould plates usually one single attachment point is suffici
-
ent (see Picture 13) as the gravity centre usually coincides with the attachment point! In this case the lifting capacity is
100 %. (see Chart 8)
• At least 2 attachment points are necessary to lift manifolds or L2X systems as otherwise it will not be possible to lift the
load in a directed way. This is often absolutely necessary when carrying out installation work. When 2 attachment points
are used to lift loads the following situations have to be distinguished:
- The load is distributed between two evenly stressed but sloping legs (see Picture 14). The maximum load has to
be reduced corresponding to the angle of inclination α (see Chart 8)
- The load is distributed between two evenly stressed but vertically stretched legs (angle of inclination α = 0°)
(see Picture 15). To apply force correctly the use of a lifting beam is absolutely necessary.
- If the centre of gravity is asymmetric loads should be lifted using more than 2 attachment points.
It can be helpful to use a lifting beam.
- If spacer bolts for attachment swivels are used it is absolutely necessary to use a lifting beam to enable a correct
application of force via vertically stretched legs (see Picture 16).
If the load is lifted using sloping legs, a force F will be generated causing a side load M in the screw-in thread.
Breakage risk arises (see Picture 17).
4. Are the lifting accessories and slings approved for the respective modes of assembly?
• Is the allowed maximum weight respected?
•
Is the load capacity reduced due to the specific lifting arrangement?