27 21 020 Replacing Radial Shaft Seal for Output Flange (ATC 700)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

IMPORTANT: After completing work, check gear oil level and top up if necessary.
Use only approved gear oil. See27 00 ... Replenishing /Changing Transfer Case Oil (ATC 700) in this transfer box.

Necessary preliminary tasks:

Release retaining ring (1).

Fig 1: Identifying Retaining Ring

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Installation:

Replace O-ring in output flange.

Check that O-ring is in correct position.

Fig 2: Identifying O-Ring In Output Flange

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IMPORTANT: The propeller shaft may move when the output flange is pushed on. The retaining ring can thus no longer be fitted.

Installation:

Push on output flange
Using 2 screwdrivers, press output flange downwards or output shaft (2) upwards until groove for retaining ring is completely visible.
Fit retaining ring.

Fig 3: Pressing Output Flange Downwards Or Output Shaft Upwards
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Drive a hole into radial shaft seal (1) using a center punch (2).

IMPORTANT: Do not use a drill as drillings may result in transmission malfunction.

Fig 4: Identifying Radial Shaft Seal And Centre Punch

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Screw in special tool 23 0 490 .

Drive out radial shaft seal (1) with impact weight (2).

Fig 5: Identifying Radial Shaft Seal And Impact Weight With Special Tool (23 0 490)

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Drive in radial shaft seal with special tool 27 1 480 DRIFT .

Fig 6: Identifying Radial Shaft Seal With Special Tool

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Add final details to vehicle.

Check oil level.

Check transmission for leaks.