Fuel filters
left - Roto Diesel,
right - Bosch,
2 - hand pump,
3 - deaerator,
4 - water drain screw
1. Every 7,500 km or when the water presence warning light comes on, the water in the fuel filter must be drained.
2. A vessel or piece of material should be placed under the fuel pump.
Roto Diesel filter
3. Loosen the water drain screw (4).
4. To remove water and dirt, press the button (2) hand pump.
5. Screw in the water drain screw.
6. Press the hand pump button until resistance appears.
Bosch filter
7. Open deaerator (3) filter.
8. Loosen the water drain screw (4).
9. Drain water and dirt.
10. Tighten the water drain screw (4).
11. push button (2) hand pump until fuel flows out of the deaerator free of air bubbles.
12. Spin the deaerator (3).
13. Then press the button until resistance appears.