It is recommended to replace the rubber
covers always when the rubber covers are
removed.
13.
Install the fuel overflow pipe and the high-
pressure pipes (tightening torque 30 Nm).
(6) Injector flange
(7) Frame mounting screw
(8) Fastener
3.13.4 High-pressure pump
The function of the high-pressure pump can be
tested using the service tool (so-called “High-
pressure test”). For more detailed information,
please see the service tool manual.
Fig. 108
3.13.4.1 Removing the high-pressure pump
WARNING:
Do not make any work at the common rail high pressure fuel system when the engine is
running. Wait at least 30 seconds after stopping the engine .The first high pressure
component has to be loosened slowly, so that the pressure inside the fuel system can
adjust to ambient pressure. If the jet of high pressure fuel contacts your skin, fuel
penetrates the skin causing severe injuries. Get medical help immediately!
Procedure
1.
Disconnect the electric main switch.
2.
Clean the high-pressure pump and surroundings.
3.
Open the inspection plug on the timing gear front cover.
4.
Rotate the engine so that timing mark on the high pressure pump gear is visible.
5.
Mark the pump gear position on the idler
gear (arrowed).
6.
Detach the wire connector.
7.
Disconnect the fuel delivery pipes and insert
protective plugs in the connections.
8.
Unscrew the retaining screws and remove
the high-pressure pump.
9.
Remove the guide ring from the high-
pressure pump.
10.
Remove the gear with the appropriate tool.
11.
Take the high-pressure pump to the Bosch
Diesel agent or the service department of
AGCO power Inc. to be reconditioned.
Fig. 109
3. Maintenance
4th Generation Engines 3-65
8370 79492
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