1. Unscrew the screw plug 1 of the oil filler hole (2 - gearbox).
2. The oil level in the gearbox should be at the lower edge of the oil filler hole. Otherwise, add oil to the gearbox.
3. Screw in the oil filler plug and tighten to 25 Nm.
Filling a new box
1. Unscrew the screw plug 1 of the oil filler hole.
2. Pour gear oil into the box up to the bottom edge of the oil filler hole.
3. Tighten the oil filler plug to 25 Nm.
4. Raise and secure the front of the vehicle. Start the engine, turn on the third speed and let the engine run for about 2 minutes.
5. With the engine stopped, unscrew the oil filler plug and add oil again to the lower edge of the oil filler hole.
6. Tighten the oil filler plug to 25 Nm.