33 21 071 Replacing both gaiters on left and right of output shaft

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Necessary preliminary tasks

Remove output shaft . See 3321001 REMOVING AND INSTALLING OR REPLACING LEFT OUTPUT SHAFT or 3321002 REMOVING AND INSTALLING/REPLACING RIGHT OUTPUT SHAFT

Removing inner gaiter

Clean output shaft and clamp with a cloth in vice.

Unfasten hose clip (1).

Using a suitable tool, force gaiter cap (2) off joint or sealing cover.

Fig 1: Pushing Gaiter Cap Off Joint Using Tool

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Push back gaiter with cap.

IMPORTANT: Risk of damage!
Make sure that joint does not fall apart.

Clamp joint (1) in vice.

Using a suitable tool, force sealing cover (2) off joint (1).

Fig 2: Removing Sealing Cover Off Joint Using Tool

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IMPORTANT: Mark positions in relation to each other of ball hub, ball cage and joint at ends.

NOTE: If the joint falls apart, it can only be reassembled correctly with the aid of the markings.

Fig 3: Identifying Marking On Ball Hub, Ball Cage And Joint

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Remove circlip (1).

Fig 4: Identifying Circlip

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Grip output shaft.

Using special tool 26 1 110 and a suitable tool (for hollow shaft 21 2 120), press output shaft out of joint (1).

Clean joint (1) carefully.

NOTE: All traces off old grease must be removed.

Detach gaiter from output shaft.

Fig 5: Pressing Output Shaft Out Of Joint Using Special Tool

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Removing and installing outer gaiter

Release hose clamps (1, 3) and detach gaiter (2) from output shaft.

Clean joint and output shaft carefully.

NOTE: All traces off old grease must be removed.

Check joint for damage; if necessary, replace output shaft . See 3321001 REMOVING AND INSTALLING OR REPLACING LEFT OUTPUT SHAFT or 3321002 REMOVING AND INSTALLING/REPLACING RIGHT OUTPUT SHAFT .

Fill joint with propeller shaft grease.

Fit gaiter (2) on bellows and secure with hose clamps (1, 3).

Fig 6: Identifying Hose Clamps And Gaiter On Output Shaft

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Installing inner gaiter

Push gaiter with cap onto output shaft (1).

Mount special tool 33 2 100 corresponding shell inserts on output shaft (1).

Press joint (2) over bearing inner race onto output shaft.

Fig 7: Mounting Special Tool (33 2 100) On Shell

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Install new circlip (1).

Fig 8: Identifying Circlip

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IMPORTANT: Keep sealing faces of cap and joint (on both sides) clean and free from grease.

Fill joint at both ends with high-temperature grease.

Fig 9: Filling High-Temperature Grease On Joints Ends

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IMPORTANT: Risk of damage!
Do not install gaiter with cap and sealing cover on joint without shims.

Apply a thin coating of sealing compound to sealing faces of sealing cover and cap.

Install sealing cover (1) with two bolts, shims and nuts on joint.

Fig 10: Identifying Sealing Cover

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Install cap (1) with two bolts, shims and nuts on joint.

Fit hose clamp (2).

Fig 11: Identifying Cap And Hose Clamp

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