Fuel Filter: Testing and Inspection

1. Return line
- From Diesel injection pump
2. Supply line
- To Diesel injection pump
3. O-ring
- Replace
4. Control valve
- Installation position: arrow points towards fuel tank
- When changing filter, remove retaining clip and control valve complete with fuel lines
- Below + 15°C: Passageway to filter open
- Over + 31°C: Passageway to filter closed
5. Retaining clip
6. Return line
- To fuel tank
7. Supply line
- From fuel tank
8. Fuel filter
- Arrow marks direction of flow
- Do not interchange connections
- Replace if damaged
9. Gasket
- Replace if damaged
10. Water drain plug
- To bleed, remove mounting clip and control valve as an assembly (with fuel lines attached)
- Loosen and allow approx. 100 cc's fluid to drain