backstops G see page onwards Backstop Extend B3SV-18-C Bevel-helical speed reduction gearboxes B3

Flender/Flender Gear Units/Bevel-helical speed reduction gearboxes B3

oils Examine the oil Change the oil if necessary Oil escaping from the gear unitInadequate sealing of the housing cover or jointsCheck the seals and replace if necessary Seal housing cover or joints Check the compression seals and retighten screws if ne- cessary Leaking pipes Check the pipes, and replace or seal if necessary Oil supply system mal- function- Follow the operating instructions for the oil supply sys- tem Elevated temperature during operationOil level in the gear unit housing too highCheck the oil level Correct the oil level if necessary Oil is too old Find out when the last oil change was done Change the oil if necessary Oil is severely contaminated Change the oil Oil supply system or cooling coil defectiveCheck the oil supply system or cooling coil Replace defective components if necessary Follow the operating instructions for the oil supply sys- tem Gear unit with water-oil cooler: Coolant flow too low or too highAdjust the valves at the supply and return lines Check the water-oil cooler for free flow Gear unit with air-oil cooler: Inad- equate air flowClean the air-oil cooler Gear unit with air-oil cooler: Cooler block soiledClean the cooler block Servicing 8.4 Possible faults B5-0 en Edition 0/2 8Possible faults Causes Possible remedies Elevated temperature during operationGear unit with oil cooling system: Inadequate oil flow through the oil coolerCheck the oil filter and coarse filter If required, replace the oil filter or clean the coarse filter Gear units with cooling coil: Depos- its in the cooling coilClean, or if necessary, replace the cooling coil Gear unit with fan: Air intake open- ing in air guide cover or gear unit housing is soiledClean the air guide cover and gear unit housing Coolant temperature is too high Check the temperature; correct if necessary Defective oil pump Check the oil pump function Repair or replace oil pump if required Elevated temperature at bearing pointsOil level in the gear unit housing too low or too highCheck t