WARNING | When doing any repair work, especially in the engine compartment, pay attention to the following due to the cramped conditions: |
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| Route all the various lines (e.g. for fuel, hydraulics, active carbon filter system, coolant, refrigerant, brake fluid and vacuum pipes and hoses) and electrical wiring so that the original positions are restored. |
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| Ensure that there is sufficient clearance to all moving or hot components. |
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| To prevent injuries to persons and/or damage to the pre-heating and ignition system, the following must be noted: |
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| The ignition must be switched off before connecting or disconnecting injection or pre-heating system wiring or tester cables. |
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| If the engine has to be operated at the starting speed without actually starting, e.g. to test compression pressure, detach the multi-pin connector for unit injectors and glow plugs on the cylinder head. |
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