Renewal Of The Gear Unit Interior Preservation On Gear Units Having Already Been In Operation; Renewal Of The Interior Preservation Of The Gear Unit Using The Oil- Supply System - Siemens KMS Assembly And Operating Instructions Manual

If it is taken out of service for > 7 days, the lubricating system has to be taken into operation once a week
for 1 hour. At the same time, the gear unit has to be turned every 2 weeks (at least one rotation on the output
flange).
Note
Before restarting the gear unit, the measures according to section 7.1 and 7.2 have to be carried out.
If it is not possible to start up the lubricating system once a week and to turn the gear unit every 2 weeks
at the same time, or if the gear unit is taken out of service for longer than 7 days, the gear unit must be
preserved according to items 7.3.1 and 7.3.2.
7.3.1

Renewal of the gear unit interior preservation on gear units having already been in operation

Depending on the specific application, the following measures for renewing the interior preservation of the
gear unit can be taken in case it is taken out of service for a longer period (> 7 days).
The durability period of this preservation kind depends on the measure for renewing the interior
preservation of the gear unit, the packaging type, and the setup and/or storage place (see Table 12 or
Table 13 in item 7.3.1.1).
Definition of climatic zones:

7.3.1.1 Renewal of the interior preservation of the gear unit using the oil- supply system

The prerequisite for this is that the gear unit is still below the mill and connected to the oil-supply system.
"Castrol Alpha SP 220 S" or "Tribol1390" can be used as preservative agent. The oil level must never be
below the MIN mark on the oil level indicator of the main gear unit, the tilting pad thrust bearing chamber
and/or the oil-supply system (if the model has a tank). See also operating instructions of the oil-supply
system. For this purpose, turn on the oil-supply system and turn the gear unit without load (at least
1 rotation on the output). Drain the oil, close, mask and seal the gear unit and oil-supply system airtight.
Replace air filters for sealing caps and be seal them. Seal the gear unit airtight with a round cord hollow
profile between the gear unit housing and the output flange. Mask the labyrinth seals on the input shaft and
on the output flange airtight within 1 hour.
Note
Clean the air filters thoroughly (see item 10.3) and keep it in a safe place (these will be required when
starting up again).
North Pole 90°N
Arctic Circle 66.5°N
A
B
A
Antarctic Circle 66.5°S
South Pole 90°S
BA 9137 en 12/2015
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Northern Tropic 23.5°N
Equator 0°
Southern Tropic 23.5°S