2. Check the appearance of the gearbox for signs of oil leakage, check the oil level in the gearbox by unscrewing the filler plug. If the oil is contaminated, change it.
Pic. 11.1. Checking the oil level in the gearbox: 1 - filler plug; 2 - oil level in the box
3. Oil should be at the level of the lower edge of the filler hole (pic. 11.1).
4. Check that the oil is not visibly dirty and has the correct viscosity.
5. Replace the filler plug and tighten to the specified torque.