| Replacing O-rings for fuel return-flow line |
Note | Proceed with utmost care. Avoid damage to the fuel return-flow line. |
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| Carefully remove the old O-rings from the connections of the fuel return-flow line. While doing so, do not work with sharp-edged tools. |
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| When cleaning, do not use any solvent or anything similar which damages the graphite coating on connections of the fuel return-flow line. |
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| Proceed with utmost care in order to avoid damage to the O-rings or the fuel return-flow line. |
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| The O-rings must not be twisted in the slots of the fuel return-flow line. |
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| Clean the seating surfaces for the O-rings on the connections of the fuel return-flow line with great care. |
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| Carefully push new O-rings into the slots on the connections of the fuel return-flow line. |
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