Bevel-helical gear Reduction Box B4 ide Dual radial shaft sealSide Sp ecial seal or B4-DH15A

Flender/Flender Gear Units/Bevel-helical gear Reduction Box B4

turer. 1.2.2 Changing the oil The instructions in item 7.1 must be observed! Drain the oil while it is still warm, .. immediately after shutting down the machinery. When changing the oil, always refill the gear unit with the same type of oil. Never mix different types of oil or oils made by different manufacturers. Never mixsynthetic oils with mineralbased oils or with other synthetic oils. When changing from mineralbased oil to synthetic oil or from one type of synthetic oil to another, flush the gear unit well with the new type of oil beforehand. If during the oil change oil deposits are found in the gear unit, the housing must likewise be flushed out with oil to completely clear it of oil sludge, abraded material and usedoil residues. Use the same type of oil asis used for normal operation. Highviscosity oils must be heated beforehand. Ensure that all residues havebeen removed before filling with fresh oil. Place suitable container under the oil drain plug of the gearunit housing or fit an oil drain hose. Unscrew the breather screw on the top of the housing. Unscrew the oil drain plug and allow the oil to drain into the container. There is danger of scalding from the hot oil emerging from the housing. Wear protective gloves.Remove any oil spillage immediately with an oilbinding agent. Clean the permanent magnet of the oil drain plug thoroughly. Screw in the oil drain plug. Note: Check the condition of the sealing ring (the sealing ring is vulcanised onto the oil drain plug). If necessary, use new oil drain plug. Fill with lubricant according to item 7.2. 1.2.3 Cleaning the fan and gear unit The instructions in item 5.7 must be observed! Remove the fan cowl. Using stiff brush, remove any dirt adhering to the fan wheel, cowl and safety grid. Remove any corrosion. Screw safety grid back onto the fan cowl. It must be ensured that the fan cowl is correctly fastened. The fan must not come into contact with the fan cowl. To prevent the buildup of dust on