ax Ra Ra LSS Material of driven machine shaft B4-CV-8-A Bevel-helical speed reduction gearboxes B4

Flender/Flender Gear Units/Bevel-helical speed reduction gearboxes B4

the middle of the oil sight glass or in the middle between the MIN and MAX marking on the oil dipstick. Hot oil may rise slightly above the middle on the oil sight glass or the MAX marking on the oil dipstick. NOTICE Property damage Deficient lubrication by oil level too low is possible. Notice the oil level. In no case may the visible bottom edge on the oil sight glass or the MIN marking on the oil dipstick be fallen short of. Fill up oil if necessary. 4 / 7BA 5 en 0/2.2.2 Gear unit with oil supply system 7.2.2.1 Pre-lubrication phase Prior to start-up, the gear unit should be prelubricated for maximum of 5 minutes by means of the oil-supply system. During this time, rolling bearings and gear teeth are adequately supplied with oil for start-up. Note The pre-lubrication phase must not take longer than 5 minutes since there will be heavy foaming of the oil at low temperatures. If the oil temperature is below 1 , the oil should be pre-heated by suitable measures, or Siemens should be consulted. Be sure to observe the operating instructions of the oil supply system for operation and maintenance. 7.2.2.2 Initial operation Observe all necessary instructions. Start the gear unit. Operation of the gear unit without load must be limited to minimum. During the no-load running, the following points have to be observed: Oil level After the first run the oil level will drop. As the gear unit continues to heat up, the oil level will rise to the level of the mark showing the operating oil level. Oil leak Screw joints should be checked for oil leakages and, if necessary, resealed! 7.2.3 Gear unit with auxiliary drive unit NOTICE Property damage Damage to the gear unit is possible. Before start-up, check whether the overrunning clutch can be turned manually in the free-wheeling direction without exerting undue force. Observe the arrows on the housing for the direction of rotation. Note The overrunning clutch is in free-wheeling operation if the motor shaft of the auxiliary dr