Fuel Filter: Service and Repair

Fuel Filter, Assembly Overview

The flow direction is marked by arrows on the fuel hose, the preheat valve and the fuel filter.







1. Return hose
- To fuel cooler/fuel tank
- Open lower spring-type clamp
- Blue or with blue marking
- Check for secure seating
2. Supply line
- From fuel tank
- White or with white marking
- Check for secure seating
3. O-ring
4. Securing clip
- Replace if damaged
5. Protective plate
- Note installed position
6. Preheat valve
- Installed position: Arrow points toward fuel tank
- When replacing filter, remove retaining clip and protective plate and take off preheat valve with hoses connected. Replace O-ring and coat with fuel before installing.
- Below + 15 degrees C:
Passageway to filter open
- Above + 31 degrees C:
Passageway to filter closed
7. Return hose
- From injection pump
- Open lower spring-type clamp
- Check for secure seating
8. Supply line
- To injection pump
- Check for secure seating
9. Fuel filter
- Fill with diesel fuel before installing
- Do not interchange connections
- Replace if damaged
10. Tensioning bolt, 2 Nm
11. Bracket
- Slide onto upper stop of fuel filter
12. Water drain plug
- To bleed, remove retaining clip and protective plate and take off preheat valve with hoses connected
- Loosen and allow approx. 100 cu.cm fluid to drain
13. Seal
- Replace if damaged
14. 10 Nm