B4-KV-9B g systems OW The cooling is laid out in the bi Bevel-helical speed reduction gearbox B4

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

valueCheck the oil level at room temperature Top up with oil if necessary Check the oil pump If required, replace the oil pump Check the oil filter and coarse filter If required, replace the oil filter or clean the coarse filter Grease escaping at the output shaftDefective rotary shaft sealing rings Inspect the rotary shaft seals and replace if necessary Noise Damage to the gear teeth Contact Customer Services Inspect the toothed components If necessary, replace damaged components The bearing play is excessive. Contact Customer Services Adjust bearing play Defective rolling-contact bearings Contact Customer Services Replace defective rolling-contact bearings Overrunning noises caused by op- eration on frequency converterContact Customer Services Check the closed-loop motor control system Gear unit fastening has worked looseTighten bolts and nuts to the specified tightening torque Replace damaged bolts and nuts Outer surface of gear unit soiled with oilInadequate sealing of the housing cover or jointsSeal housing cover or joints Servicing 8.4 Possible faults B5-0 en Edition 0/2 8Possible faults Causes Possible remedies Outer surface of gear unit soiled with oilLabyrinth seals soiled with oil, in- correct transport positionCheck oil filling Clean the labyrinths Main drive motor does not startMotor direction of rotation incorrect Change polarity of motor Backstop cage with sprags incor- rectly installed or defectiveContact Customer Services Install the backstop cage, rotated through 1 - or re- place Overrunning clutch blocked Contact Customer Services Install new overrunning clutch Overrunning clutch cage with sprags incorrectly installed and/or defectiveContact Customer Services Install the overrunning clutch cage, rotated through 1 - or replace Main drive motor can start while the auxiliary drive is operationalDefective electrical interlocking between the main and auxiliary mo- torCheck the connections If necessary, replace defective devices Defective speed monitori