Siemens SIWAREX WL230 BB-S SA Instrukcja obsługi sprzętu - Strona 32
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Installation
5.2 Installing the compact installation unit
5.2.7
Lowering the load bearing implement onto the load cells
Procedure
NOTICE
Damaging the compact mounting unit
When individual hexagon nuts are overloaded, the compact mounting unit can be damaged.
By loosening a hexagon nut, the weight of the load bearing implement is distributed among
the other hexagon nuts and is partially increased.
• Loosen the hexagon nuts in turn in small steps bracket by bracket.
1. Loosen the top hexagon nuts in several cycles.
2. Slowly lower the load bearing implement and the top plate.
3. Rotate the top hexagon nuts downward.
4. To prevent the top hexagon nuts from turning upward in case of vibrations, fasten the top
hexagon nuts against the lower hexagon nuts.
Result
All top plates are resting on the load cells by means of the pendulum bolt. The load cells are
loaded.
5.2.8
Compensation of height with four or more support points
Introduction
Check during the installation whether compensation of the height on the brackets is necessary
and meaningful.
Compensation of the height does not make any sense when the load bearing implement and/or
the foundation are elastic. With a rigid load bearing implement and rigid foundation, a bearing
with four or more points is considered as statically undefined. In such cases it is meaningful to
check the load on the individual load cells.
Compensation of the height is necessary in the following cases:
• A load cell is not loaded.
• Two diagonally opposite load cells are overloaded by a full scale.
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Equipment Manual, 12/2020, A5E02390707B-03
SB-S SA