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



56822268



Dismantling and assembly of a reducer of the main transfer and adjustment of gaps of gear wheels

Dismantling

Design of a reducer of the main transfer (model 140.02/03 since 01.06.94 вып. and diameter of differential of 198 mm)

11a, 43e, 46b — External rings of the bearing
11b, 43d, 46a — Internal a bearing ring
13 — the differential Case
13a — Bolts
29, 30 — Lock rings
32a — the Radial epiploon
33 — the Flange of a power shaft
40 — the Nut
41 — the Flange

42 — the Radial epiploon
44 — the Plug
45, 48 — Laying
47 — the Leading gear wheel
47a — the Conducted gear wheel
50 — the reducer Case
54 — the Back cover
55 — Sapun


 PERFORMANCE ORDER

1. Remove the case of a reducer (50).Слейте oil from a reducer.
2. Fix a reducer in a vice.
3. Disconnect a back cover (54).
4. Remove a lock ring (30) from both flanges of power shafts (33).
5. Remove flanges of power shafts (33).
6. Vypressuyte left and right radial epiploons (32a).
7. Remove lock rings (29).
8. Insert a pin (046) for differential gear wheels on the right side and press differential so that it on the left side concerned the reducer case. Take both external rings (11a) roller bearings from the reducer case.
9. Take the case of differential (13) of a reducer.
10. Take both internal rings (11b) conic roller the bearing from the differential case.
11. Weaken and unscrew bolts (13a) fastenings of a conducted gear wheel of the main transfer.
12. Remove a conducted gear wheel of the main transfer (47a) from differential (13).
13. Weaken and unscrew a nut (40) fastenings of a flange (41).
14. Remove a flange (41).
15. Take a leading gear wheel of the main transfer (47) of a reducer.
16. Vypressuyte an epiploon (42) from a reducer.
17. Remove an internal ring of the bearing (43d).
18. Remove external rings of bearings (46b), (43e) from a reducer.
19. Remove laying (45).
20. Remove the plug (44) with laying (48) from a leading gear wheel.

Check

 PERFORMANCE ORDER

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

Assembly and adjustment

 PERFORMANCE ORDER

1. Press an internal ring of the bearing (46a) on a leading gear wheel (47).
2. Count up thickness of laying (45) and establish it in the reducer case.
3. Establish external rings of bearings (46b), (43e) in the reducer case.
4. Establish the plug (44) with laying (48) from both parties on a leading gear wheel.
5. Establish a leading gear wheel (47) in a reducer (50).
6. Establish an internal ring of the bearing (43d) on a leading gear wheel and press them together with a radial epiploon (42).
7. Establish a flange (41) on a leading gear wheel.
8. Tighten a nut (40).
9. Adjust the friction moment in the bearing of a leading gear wheel.
10. Check a gap of a leading gear wheel.
11. Establish a conducted gear wheel (47a) on differential (13). For this purpose it is necessary to heat up a conducted gear wheel to temperature 75-85°C.
12. Press an internal ring of the bearing (11b) on differential.
13. Further assembly is carried out as it should be, the return to dismantling.
14. Check and adjust an axial gap of a flange.
15. Fix a back cover (54).
16. Remove a reducer from a vice.

Installation

 PERFORMANCE ORDER

1. Establish a reducer (50).
2. Fill in oil (about 1.2 l)
3. Replace сапун (55) on a back cover (54).

Specifications

 PERFORMANCE ORDER

1. The friction moment in the bearing of a leading gear wheel (new conic roller bearings): 215-245 Nanometers.
2. A tolerance from adjusting parameter on the end of a leading gear wheel:-0.02/+ 0.01 mm.
3. A gap between the leader and the main transfer conducted by gear wheels 0.08 - 0.014 mm.
4. Axial люфт a differential flange concerning the case of the last 0.03 - 0.3 mm.