Siemens FLENDER K SH Series - Gear Unit with Oil­supply System - Pre­lubrication Phase; Initial Operation; Gear Unit with Backstop

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BA 5846 en 05/2015
7.2.3 Gear unit with oilsupply system – Prelubrication phase
• Prior to startup, the gear unit should be prelubricated for maximally 3 minutes by means of the
oilsupply system.
During this time, rolling bearings and gear teeth will be adequately supplied with oil for startup.
Note
The prelubrication 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 below 10 °C the oil should be preheated applying suitable
measures, or Siemens should be consulted.
Be sure to observe the operating instructions of the oilsupply system for operation and maintenance.
7.2.3.1 Initial operation
• Observe all required instructions.
• Start operation of the gear unit.
A noload run of the gear unit should be limited to a minimum time. During idling time, the following points
have to be observed:
─ Oil level
After the first run the oil level will fall. As the gear unit continues to heat up, the oil level will rise to the
level of the mark showing the operatingoil level.
If the gear unit does not heat up with too low load, the coolingwater supply should be reduced. This
will reduce foaming of the oil.
─ Oil leakage
Check the screw connections for oil leakage and, if necessary, reseal.
7.2.4 Gear unit with backstop
WARNING
Risk of injury through moving plant parts
After having stopped the motor, there is a danger that the load is not safely held in its position and can
run in reverse direction at high speed.
The slipping torque was set at the correct value at the works; it must not be changed.
Note
Observe details in item 5.7, "Backstop".