MOTOX gearbox - DS TECH

Service and maintenance8.2 Checking and changing lubricants8.2.6.3 Flushing the gearbox when changing between incompatible oilsCAUTIONPolyglycol oil has a higher density than mineral oil. Therefore, it sinks down towards the oildrain and the mineral oil floats on top.This makes the required complete draining of mineral oil from the gearbox extremelydifficult.CAUTIONA flushing process is required with biodegradable and physiologically safe oils.The residual corrosion protection oil must amount to no more than 1 % of the operating oilvolume.NoteWe recommend that, after the second flush, the quality of the rinse is checked by an expertanalyzer.Observe the symbols in the type of construction diagrams, see Types of construction(Page 85):Ventilation Oil filling Oil drainProcedure1. After the oil has been drained, wipe the gearbox clean of any remaining mineral oil usinga cloth.2. Remove the vent plug or oil filler screw.3. Fill the gearbox with a detergent oil, using a filter (filter mesh max. 25 μm). For thedetergent oil, use either the new oil or one that is compatible with the new oil.4. Allow the gearbox to run for 15 to 30 minutes under a low load.5. Place a suitable and sufficiently large receptacle underneath the oil drain plug.6. Remove the oil drain plug and drain all the oil into the receptacle.7. Seal the gearbox using the sealing elements.8. Repeat this step for the second rinse.You have now flushed the gearbox twice and can pour in the new oil.BA 2010Operating Instructions, 05/2011 67