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7.2.1
Oil level
•
Check the oil level in the gearunit housing. To do so, the gear unit must be shut down.
Depending on the type the following oil levels apply:
─ Middle of the oilsight glass.
─ Top mark on the oil dipstick.
When the oil is cool, the level should be at the upper mark on the oil dipstick. When the oil is warm it may
slightly exceed this mark.
It must in no case be allowed to fall below the mark. If necessary, top up to the correct
level.
7.2.2
Gear unit with cooling coil or water oilcooler
The permissible pressure and temperature values must not be exceeded.
This is to be checked before the startup of the gear unit.
•
Fully open the stop valves in the coolant in and outflow pipes of the cooling system.
•
Check that connecting lines are correctly fastened and tight.
7.2.3
Gear unit with cooling coil or external oilsupply system
Fully open the stop valves in the coolant in and outflow pipes.
After starting up the external oilsupply system for the first time the oil level must be
once more checked in accordance with item 7.2.1.
7.2.3.1 Prelubrication phase of the oilsupply system
•
Prior to startup, the gear unit should be prelubricated for approx. 3 minutes by means of the oilsupply
system.
•
During this time, rolling bearings and gear teeth will be adequately supplied with oil for startup.
The prelubrication phase must not take longer than 3 minutes since there will be heavy foaming
of the oil at low temperatures. If the oil temperature is < 10 °C the oil should be heated up
applying suitable measures or Siemens should be consulted.
Be sure to observe the operating instructions of the oilsupply system for operation and
maintenance.
BA 5200 EN 08/2010
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