9.4.1. Half shafts, bearings and epiploons


Order of dismantling of a half shaft of the back bridge (except the car of 1992-98)

N – is subject to replacement
1. Drum
2. Bolt of fastening of a cable of the emergency brake
3. Tip of a cable of the emergency brake
4. Brake tubes
5. Nuts
6. Half shaft assembled
7. Adjusting washers
8. Ring
9. Lock-nut
10. Kitrovochny washer
11. Washer
12. Half shaft
13. Internal holder
14. Case
15, 17. Epiploon
16. External holder

Order of dismantling of a half shaft of the back bridge (1992-98)

N – is subject to replacement
1. Brake tubes
2. Back brake
3. Disk
4. Bolt of a cable of the emergency brake
5. Tip of a cable of the emergency brake
6. Emergency brake assembled
7. Speed sensor
8. Half shaft assembled
9. Lock ring
10. Locking ring of the bearing
12. 1st internal holder of the bearing
13. 2nd internal holder of the bearing
14, 23. Epiploon
15. A mud-reflector (on the car without ABS system)
16. A rotor (on the car with ABS system)
17. Half shaft
18. Brake board
19. Speed sensor arm
20. External holder of the bearing
21. Case
22. Ring

Removal and installation
CARS OF 1983-91.

PERFORMANCE ORDER
1. Remove brake drums.
2. Disconnect a cable of the emergency brake.
3. Turn off 4 nuts of a board of a brake and remove a half shaft assembled with a board, the case and the bearing.


4. Remove a ring and adjusting washers (for adjustment of a preliminary tightness of bearings), having tracked their safety.
5. Vypressuyte an epiploon from the back bridge.


6. Turn off a nut, remove washers and press the bearing by means of a stripper (a plate with 4 openings opposite to hairpins of the case of bearings).


7. Beat out from the case an external holder the bearing and remove an epiploon.
8. Assembly is carried out upside-down.
9. Put lubricant in the bearing, tighten nuts and bolts according to the required moments.


10. Press holders of the bearing by means of a special mandrel (1 – the case, 2 – an emphasis).


11. Press an epiploon by means of a special mandrel (1 – the bearing case, 2 – an emphasis).
12. Check an axial side play of a half shaft which has to be 0,05–0,20 mm, if necessary adjust (see subsection 9.4.2).

CARS OF 1992-98.

PERFORMANCE ORDER
1. Remove a support of a brake and a disk, disconnect a cable of the emergency brake.
2. On cars with ABS system remove the speed sensor.
3. Get a half shaft from the back bridge (if necessary use a shock stripper).
4. Remove a lock ring, beat out a bolt of fastening of a board of a brake.


5. For cutting of a locking ring it is necessary to remove one of hairpins (1 – a brake board).


6. Clamp a half shaft in a vice and carefully cut a manual emery circle a locking ring of the bearing to thickness of 1-2 mm (1 – a manual sandpaper, 2 – the bearing case, 3 – a locking ring).


7. After that bring down a ring a chisel.
8. Process MB990861 adaptation plate corner a sandpaper and fix adaptation on a half shaft, having picked up washers and having wrapped nuts.
9. Vypressuyte a half shaft from the bearing case.


10. By means of MB990861 adaptation and a press remove from a half shaft a bearing holder (1 – the processed edge of a plate, 2 – a plate, 3, 5 – a washer, 4 – the case, 6 – a bolt, 7 – a nut).
11. On cars with ABS system remove an epiploon and a dustproof cover.


12. On cars without ABS system press a rotor, having laid between a rotor and a half shaft an auxiliary plate 1 mm thick (1, 2 – a plate, 3 – a support).

Prevention
Not to bend a rotor plate at a vypressovyvaniye as a support use a mandrel which diameter corresponds to diameter of a flange of a half shaft.

13. Remove other details from a half shaft.
14. Remove a brake board.


15. Establish a remote internal holder and by means of MB990799-01 adaptation press an external holder (1).


16. Fix the bearing the MV device 990560 for knocking-out of a half shaft.
17. Remove the bearing case.
18. Remove a ring and a vypressuyta an epiploon from the back bridge.
19. Replace worn-out details. Also those details which are designated by N letter are subject to replacement.
20. Assembly is carried out upside-down taking into account the following.
21. Press a half shaft epiploon prisposobleny MB990932-01 and MV990938-01, or equivalent.
22. Grease and press an external holder of the bearing MB990890-01 adaptation.
23. Napressuyte a rotor on a half shaft MB991388 adaptation.
24. Press an epiploon of the case of the bearing prisposobleny MB990936-01 and MV990938-01, previously having greased and having established an internal holder of the N1 bearing.
25. Press an internal holder of the N2 bearing on a half shaft MB990799 adaptation.

Prevention
Both holders of the bearing have to be napressovana closely to each other. Half shafts of the back bridge with self-locking differential have different length (the right half shaft longer).

26. A locking ring of the bearing press on a half shaft MB990799-01 adaptation with initial effort 5 CU and the final 10–11 CU.

Prevention
If the final effort is less specified, then replace a half shaft.


27. After installation of a lock ring check a gap And between lock (1) and locking (2) rings which should not exceed 0,166 mm.
28. Otherwise pick up a lock ring for thickness, being guided by the following color marking of thickness: 2,17 mm – are absent, 2,01 – yellow, 1,85 – blue, 1,69 – pink, 1,53 – red.
29. Delay all connections according to the required moments.