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Removing and installing parts of fuel supply system
Rules for cleanliness
When working on the fuel supply/injection system, pay careful attention to the following "6 rules" regarding cleanliness:
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◆ Thoroughly clean all unions and the adjacent areas before disconnecting.
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◆ Place parts that have been removed on a clean surface and cover. Do not use fluffy cloths!
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◆ Carefully cover opened components or seal, if the repair cannot be carried out immediately.
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◆ Only install clean components:
Only unpack replacement parts immediately prior to installation.
Do not use parts that have been stored loose (e.g. in tool boxes etc.).
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◆ When the system is open:
Do not work with compressed air if this can be avoided.
Do not move vehicle unless absolutely necessary.
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◆ Also ensure that no diesel fuel runs onto the coolant hoses. Hoses coming in contact with fuel must be cleaned immediately. Damaged hoses must be replaced.
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