Rules for cleanliness

When working on the fuel supply/injection system, pay careful attention to the following rules:

• Thoroughly clean all unions and adjacent areas before disconnecting.
• Place parts that have been removed on a clean surface and cover. Do not use fluffy cloths!
• Carefully cover opened components or seal, if the repair cannot be carried out immediately.
• 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.).

• When the system is open: Do not work with compressed air if it can be avoided. Do not move the vehicle unless absolutely necessary.
• Make sure that no Diesel fuel contacts the coolant hoses. Clean or replace affected hoses immediately.