
4.7.3.13 Checking the fuel system prefilter and sediment bowl
Check the fuel system prefilter and sediment bowl regularly.
IMPORTANT: Water in the injection system destroys the system in a very short
time. Always service the water trap and filters according to the specified amount
of running hours.
2
1
GUID-72D1C958-EA41-4D00-B789-D90969028666
1. Tap at the bottom of the main fuel filter
2. Tap at the bottom of the prefilter
1. Check the cleanliness of the sediment bowl.
If there are impurities or water in the sediment bowl, empty the prefilter.
2. Open the tap at the bottom of the prefilter to empty it.
3. Drain the fuel from the prefilter into a container.
If there is water in the prefilter, also empty the main fuel filter by opening the
tap below it.
IMPORTANT: Water in the fluid can damage the pump and the nozzles.
IMPORTANT: Do not drain fuel on the ground!
4. Close the tap when the filter is empty.
Both the main fuel filter and prefilter are emptied in the same way.
5. If there was water in the filters, clean the fuel tank.
6. Bleed the fuel system, if needed.
The fuel system must always be bled when the main fuel filter is emptied.
NOTE: Drain the water traps more often, if required.
4. Maintenance
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