E2AK11K1 - 307 DW10TD ENGINE
CONDITIONS FOR WORKING ON THE DIESEL CIRCUIT (SIEMENS)
1 - RECOMMENDATIONS
WARNING : the addition of additives such as fuel circuit cleaner/remetalliser, is prohibited .
2 - SAFETY PRECAUTIONS, WHEN CARRYING OUT WORK
2 - 1 - FOREWORD
All operations on the injection system must be carried out in conformity with the following instructions and regulations :
The operations must be carried out by specialist personnel informed of the safety advice and the precautions to be taken .
2 - 2 - SAFETY PRECAUTIONS
Bearing in mind the high pressures (1500 bars) which may exist in the fuel circuit, follow the instructions below :
NOTE : the waiting time is necessary to allow the high pressure fuel circuit to return to normal atmospheric pressure .
Engine running :
IMPERATIVE : do not disconnect the electrical connection of the injectors or of the ecu, this could cause serious damage to the engine .
2 - 3 - WORK AREA
The working area (ground etc.) must be clean and free from clutter; parts being repaired must be stored away from dust .
2 - 4 - PRELIMINARY OPERATIONS
BEFORE CARRYING OUT ANY OPERATIONS ON THE SYSTEM, IT MAY BE NECESSARY TO CLEAN THE CIRCUIT CONCERNED .
Sensitive components of the circuit :
IMPERATIVE : advice on cleanliness: the operator must wear clean overalls .
IMPERATIVE : following removal immediately plug the high pressure circuit unions to prevent entry of impurities into the high pressure circuit .
IMPERATIVE : safety torques: always observe the high pressure circuit tightening torques (pipes, injector holder clips), using a regularly checked torque wrench .
3 - REPLACEMENT OF PART(S), OPERATION(S) TO BE CARRIED OUT
WARNING : before carrying out any operations on the engine, read the injection ECU memories .
3 - 1 - PROHIBITED OPERATIONS
Do not detach the high pressure fuel pump (1) from the following components :
Do not separate the high pressure sensor (7) from the supply rail (8) .
Do not turn the nut (11) (Malfunction) .
Do not detach the fuel high pressure inlet union (10) .
Do not separate the components of the injector-carrier .
WARNING : cleaning of the carbon deposits on the diesel injector nozzle and cleaning with diesel and ultrasound are PROHIBITED .
WARNING : all work on the high pressure pipes (12) requires systematic replacement of these pipes .
3 - 2 - REPLACEMENT OF PART(S)
When an injection ECU is replaced, the engine immobiliser system must be relearned .
To carry out the operation, the following conditions are necessary :
3 - 3 - DOWN-LOADING OF THE CONTROL UNIT
This operation is carried out using the diagnostic equipment .
The ECU software is updated by downloading using the DIAG 2000 .
3 - 4 - REPLACEMENT OF THE INJECTION ECU
WARNING : exchanging the injection ECU between two vehicles results in it being impossible to start the vehicle .
4 - NEUTRALISATION, PACKING FOR WARRANTY RETURN
4 - 1 - INJECTION SYSTEM PARTS RETURN
Before return to the technical inspection centre, the following components must be plugged, placed in a plastic bag and packed in the original packaging of the replacement parts :
4 - 2 - INJECTION CONTROL UNIT
WARNING : if a part is returned under warranty, be sure to return the injection ECU unlocked .
Unlocking procedure, Operation(s) to be carried out :