Operation
W9215-8135-1 109
06/2021
Maintenance
Refuelling the excavator
Stop the engine.
Open the engine hood (page 112).
Remove the filler cap (1) by turning it anticlockwise.
Fill diesel fuel up to the base of the filler tube.
Clean the air filter (2) inside the filler cap.
Screw on the filler cap.
Close the engine compartment cover and secure it with a pad-
lock.
Bleeding the fuel system
Ensure that there is sufficient diesel fuel in the fuel tank. Otherwise, refuel the excavator.
To bleed the fuel system, move the starter switch to the RUN position.
The electrical fuel pump will bleed the fuel system automatically within approx. 60 s.
If the bleeding was insufficient, the engine will stop again. In this case repeat the procedure.
When refuelling the excavator, smoking, an open flame, or other sources of ignition are not allowed.
The danger zone has to be clearly marked with signs. A fire extinguisher must be kept at hand in the
danger zone.
Spilled fuel must be bound immediately with an oil binding agent. The contaminated oil binding agent
must be disposed of in accordance with the applicable environmental regulations.
If no pumping station is available, the diesel fuel may only be stored in approved canisters.
Refuel the machine in time so that the fuel tank is not running empty. Air in the fuel system can dam-
age the fuel injection pump.
Mud at the air filter causes a depression inside the fuel
reservoir.
If the fuel tank was run empty or if work was performed on the fuel system, then the fuel system has
to be bled.
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