Spur Gear 2 Needle Bearing

Spur Gear 2 Needle Bearing

Special tools, testers and auxiliary items required

• Thrust plate (VW402)

• Punch (VW408A)

• Press sleeve for sleeve (2080A)

• Item 1 Kukko 21/4 extractor

• Item 3 Kukko 22/1 support

• Hot air blower (VAG1416)

Removing

- Remove center differential. Refer to => [ Center Differential ] .

- Unbolt rear output flange/driveshaft while securing output flange/driveshaft against turning.





- Pull tension nut - A - out of spur gear shaft.





- Remove bolts (arrows).

- Remove guide plate - B - and shim - C -.

- Remove securing ring for securing grooved ball bearing in center differential housing

- Attach support - A - at internal extractor - B - as shown and insert spur gear shaft - 2 -.





A - Support, e.g. 22/1 Kukko

B- extractor, e.g. 21/2 Kukko

- Support retainer - A - using thrust plate (VW402) and pre-tension at nut - 1 - of retainer.

- Pull out spur gear and carefully remove upward.

- Remove needle bearing securing ring.

• The upper part of the illustration shows how the pulling hooks of extractor - B - must be inserted into needle bearing.





- Slide centering sleeve - 2 - of extractor - B - approx. 4 mm into direction of arrow in order to be able to open pulling hooks of extractor far enough.

A - Support, e.g. 22/1 Kukko

B- extractor, e.g. 21/2 Kukko

- Spread extractor - B - into upper lip of needle bearing - 1 - and secure extractor at nut.





- Install retainer - A - on extractor - B - as illustrated.

- Support retainer - A - using thrust plate (VW402) and pre-tension at nut - 3 - of retainer.

- Using hot air blower, e.g. VAG141, quickly heat up outside of transfer housing in vicinity of needle bearing seat to approx. 80 to 100 °C.

CAUTION!
Wear protective gloves!

- Quickly pull out needle bearing.

Installing

Installation is the reverse of removal. Also carry out the following procedure.

- Check needle bearing seat in transfer housing for damage, rework if necessary.

- Using hot air blower, e.g. VAG 141, quickly heat up outside of transfer housing in vicinity of needle bearing seat to approx. 80 to 100 °C.

CAUTION!
Wear protective gloves!

- Insert new needle bearing and set sleeve (2080A ) onto new needle bearing - 1 -.





sleeve (2080A) must be centered when set onto sleeve.

- Drive needle bearing into transfer housing up to stop using punch (VW408A).