Maintenance
107
C3M2-OM-EN-02
Note
Do not attempt to start the engine until the priming procedure has been
completed.
11. Clean the sealing surfaces on a new filter element and the sealing surfaces on
the filter mount.
12. Apply a thin film of diesel to the sealing surfaces of the new filter element and
screw onto the filter mount. (Torque to: 17-18Nm).
13. Refit the drain plug and water sensor.
14. Reconnect the plug to the water sensor connector.
15. Prime the fuel system.
To change the second fuel filter element:
1. Park the truck in a designated service area.
2. Extend the mast reach to allow access to the diesel fuel filters.
3. Lower the forks fully and tilt the mast forward fully.
4. Turn the ignition key switch to the ‘0’ position, then remove the key.
5. Enter the area between the left-hand and right-hand platforms behind the mast.
Ensure all surfaces are clean and dry and take great care to avoid slipping!
6. Thoroughly clean and dry the filter assembly and the surrounding area to
prevent dirt and debris from contaminating the fuel system.
7. Unscrew and remove the used filter element.
8. Clean the sealing surfaces on a new filter element and the sealing surfaces on
the filter mount.
9. Apply a thin film of diesel to the gasket on the new filter element and screw onto
the filter head (torque to: 10-12Nm).
10. Prime the fuel system.
6.9.3 Priming The Diesel Fuel System
The fuel system is primed via the electric fuel supply pump. In order to ensure that no
error messages are generated and that no damage to the high-pressure pump may
occur, no attempt to start the system may be made during the priming procedure.
To prime the fuel system:
1. Turn the ignition key switch to position 1 (operating voltage) to activate the
electric fuel pump. Do not turn the ignition to the start position as damage
to the fuel pump may occur.
2. The electric fuel supply pump switches on for 20 seconds in order to prime the
fuel system and to build up the required fuel pressure.
3. Wait until the fuel supply pump cuts out.
4. Turn the ignition key switch to the ‘0’ off position.
5. Repeat steps 1-4 above two more times to fully prime the fuel system.
6. The engine may only be started following this.
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