Mercedes S-Class W-140

1991-1999 of release

Repair and car operation

Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
- Coupling
   + Coupling
   Driveshaft
   + Power shafts
   - Differential
      Dismantling, assembly and differential check
      Dismantling and assembly of a reducer of the main transfer and adjustment of gaps of gear wheels
      Determination of thickness of adjusting laying and its installation in the reducer case
      Check and adjustment of a gap of a flange
      Dismantling and assembly of a reducer of the main transfer and adjustment of gaps of gear wheels (model 140.28/032/O33 till 31.05.94 вып., 140.042/043/063/1 and diameter of differential of 210 mm)
      Dismantling and differential assembly with automatic blocking
      Replacement of the cylinder of differential with automatic blocking (models 140.028/032/033 till 31.05.94 вып. and 140.1 with a code 211a)
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Dismantling and assembly of a reducer of the main transfer and adjustment of gaps of gear wheels (model 140.28/032/O33 till 31.05.94 вып., 140.042/043/063/1 and diameter of differential of 210 mm)

Design of a reducer of the main transfer (model 140 28/032/033 till 31.05.94 вып., 140.042/043/063/1 and diameter of differential of 210 mm)

A — the Standard version
In — the Version with ASR
With — the Version with ASD
11a, 43e, 46b — External rings of the conic roller bearing
11b, 43d, 46a — Internal rings of the conic roller bearing
13 — Differential
13a, 27a, 56, 56b — Bolts
25, 42 — Sealing rings
26, 45, 48 — Laying
27b, 27c, 27d — Covers of bearings
30 — the Lock ring
31 b — Rings
33, 33a, 33b — Flanges of a power shaft

40 — the Nut
41, 41a — Flanges of a leading gear wheel of a reducer
43a — the Clamping plate
44 — the Plug
47 — the Leading gear wheel
47a — the Conducted gear wheel
49 — ABS Rotor
50 — the Reducer
54 — the Back cover of a reducer
55 — Sapun
32, 32a, 70j — Epiploons
70l — the Hydraulic tube

Dismantling

PERFORMANCE ORDER

1. Remove a reducer (50). Fix it in a vice.
2. Remove a back cover (54).
3. Remove a lock ring (30) from both flanges of power shafts (33) (/33a) (/33b).
4. Remove flanges of power shafts.
5. On models from ASD/ASR remove ball bearings from flanges.
6. On models without ASD remove rings (31b).
7. On models from ASD remove a hydraulic tube (70l).
8. Remove covers of bearings (27b)/(27c) (/27d), mark them together with laying (260).
9. Remove differential (13) from a reducer.
10. Take the left and right epiploons (32) (/32a), (70j) from covers of bearings.
11. Vypressuyte both external rings (11a) bearings from covers of bearings.
12. Vypressuyte both internal rings (11b) bearings from covers of bearings.
13. Weaken and unscrew bolts (13a) fastenings of a conducted gear wheel (47a).
14. Carefully remove a conducted gear wheel from differential (13).
15. Weaken and unscrew a nut (40) fastenings of a flange (41) (/41a).
16. Remove a flange (41) (/41a).
17. Vypressuyte a leading gear wheel (47) from a reducer.
18. Vypressuyte a radial sealing ring (42) from a reducer.
19. Remove an internal ring of the conic roller bearing (43d) with a clamping plate (43a).
20. Remove an external ring of the conic roller bearing (46b), (43e) and laying (45) of a reducer.
21. Remove the plug (44) with laying (48) from a leading gear wheel.
22. Remove ABS (49) rotor from a leading gear wheel (47).

Check

PERFORMANCE ORDER

1. Check all details of a reducer on lack of wear and, if necessary, replace them.
2. Check leading (47) and conducted (47a) gear wheels on correctness of digital numbering.

Assembly and adjustment

PERFORMANCE ORDER

1. Press an internal ring of the bearing (46a) on a leading gear wheel (47).
2. Press ABS (49) rotor on a leading gear wheel (47).
3. Count up thickness of laying (45) and establish it in a reducer.
4. Establish external rings (46b), (43e) in a reducer.
5. Establish the plug (44) with laying (48) from both parties of a leading gear wheel.
6. Insert a leading gear wheel (47) into a reducer (50).
7. Fix a clamping plate (43a) on an internal ring of the conic roller bearing (43d).
8. Insert an internal ring of the conic roller bearing (43d) on a leading gear wheel and press it together with a sealing ring (42).
9. Establish a flange (41) (/41a) on a leading gear wheel and wrap a nut (40).
10. Adjust the friction moment in the bearing of a leading gear wheel.
11. Check adjusting distance of a leading gear wheel.
12. Tighten a nut (40).
13. Fix a conducted gear wheel (47a) on differential (13).
14. Press an internal ring of the conic roller bearing (11b) on differential.
15. Press an external ring of the conic roller bearing (11a) on differential.
16. Press epiploons (32) (/32a), (70j) into a reducer (50) and insert differential (13).
17. Establish a lock ring (30) on a flange.
18. Check and adjust a flange gap.
19. Attach a cover (54).
20. Replace сапун (55) on the case of a reducer (50).
21. Further assembly and installation are carried out as it should be the return to dismantling and removal.

Specifications:

PERFORMANCE ORDER

1. A tolerance from adjusting distance on the end of a leading gear wheel-0.02 / + 0.01 mm.
2. A gap between a flange and the case of a reducer 0.03 - 0.3 mm.
3. Volume of filled-in oil of 1.3 l.
4. The friction moment in the bearing of a leading gear wheel of 125-150 Nanometers.