51 71... Removing and installing/replacing sound insulation for bulkhead upper part

Necessary preliminary tasks:

Fig 1: Identifying Rubber Seal And Screws

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Remove rubber seal (1).

Release screws (3).

Tightening torque 51 71 3AZ .

Unfasten screws (2).

NOTE:

Screws (2) are partly behind side sound insulation.

Remove side sound insulation.

Release screws (4).

Tightening torque 51 71 3AZ .

NOTE:

Screws (4) are behind central sound insulation.

(Refer to the following operation.)

Remove middle sound insulation.

NOTE:

Arrows mark bolting points of middle sound insulation.

Fig 2: Locating Middle Sound Insulation Bolting Points

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Installation note:

Make sure line feed-through (1) is correctly seated.

Fig 3: Identifying Line Feed-Through

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