| For work on the fuel supply/injection system, the following “Cleaning rules” must be rigorously observed: |
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| Thoroughly clean the connections and surrounding area before loosening them. |
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| Place the parts removed on a clean surface and cover them. Do not use cloths that shed fibres! |
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| If repairs are not done immediately, the open components must be covered and stored with great care. |
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| Only install clean components: Remove the replacement parts from their packaging just before assembly. Do not install components that have been stored without packaging (e.g. in the toolbox, etc.). |
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| When the system is open: If possible, avoid using compressed air. If possible, do not move the vehicle. |
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| Avoid spilling diesel fuel on the coolant hoses. If necessary, clean the hoses immediately. The affected hoses must be replaced. |
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