Installing The Pipework; Pickling Of Adapted Pipes - Siemens KMS Assembly And Operating Instructions Manual

Once the gear unit is aligned, the pins must be fitted if these are specified in the dimensional drawing.
Lateral stops can also be mounted in addition to prevent the gear unit from shifting.
NOTICE
Property damage
Destruction of the gear unit or gear unit parts from wrong rotation direction is possible.
The gear unit is approved for one direction of rotation only.
The direction of rotation of the motor must correspond to the direction indicated by the arrow on the
gear unit input shaft.
Note
The alignment of the gear unit must be documented.
The record must be kept with these instructions.
6.5

Installing the pipework

Pipework has to be checked for damages and dirt before assembly and be cleaned thoroughly and flushed
with a fluid oil.
The pipework must be screwed on in accordance with the specifications on the drawings. Blank flanges
and plugs must be removed beforehand. The screw connections seal metallically, while the associated
seals must be used for the flanges.
NOTICE
Property damage
Damage to the gear unit from inadequate lubrication because of leakage from deformed pipework.
No forces, moments or vibrations must work on the pipework flange connections during the pipework
installation.
The pipework must be supported with struts according to the drawings of the gear unit documentation.
If the pipework is adapted at the construction site, the pipes must be carefully pickled and neutralised after
welding (see item 6.6 "Pickling of adapted pipes").
6.6

Pickling of adapted pipes

CAUTION
Risk of injury from chemical substances
Chemical burns on face and hands from pickling solution.
Wear protective glasses and gloves, ensure sufficient ventilation.
Observe the manufacturer's instructions for the handling of pickling solutions.
• The lower end of each pipe must be sealed with a plug.
• Pickling solution: 33 % hydrochloric acid (HCl) diluted with the same quantity of water (H
Note
Air bubbles must not under any circumstances be allowed to form on the inside of the pipes.
• The pipes must be filled with the pickling solution (acting time: 1 hour).
• Drain pickling solution completely out of the pipes without residues and dispose of it according to
regulations.
BA 9137 en 12/2015
43 / 89
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