Adjusting friction torque of drive pinion bearing - AR35.31-P-0550-17A
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
FRICTION TORQUE FOR REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Models 129.058/063 as of 01.06.94, Models 129.059/064 |
Model 140.02/03 as of 01.06.94 |
Model 170.465/466 |
| BE35.31-P-1001-02A |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
215-245 |
215-245 |
215-245 |
FRICTION TORQUE FOR REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Models 202.133/193, Model 202.085 with 5-speed manual transmission model 202.134/194 with (code 450) |
Model 202.033/093 |
Model 203.006/064/20 6/264/706, model 203.004/204 with code 450 |
| BE35.31-P-1001-02A |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
215-245 |
215-245 |
215-245 |
FRICTION TORQUE FOR REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Model 208.365/370/465/470 |
Model 210.006/015/017/ 025/045/053/055/063/ 065/08/206/215/217/ 225/245/263/265/28/ 606/663 Model 210.007 with code 450 |
Models 220.063/ 065/067/ 083/ 084/087/165/ 167/183/184/ 187 |
| BE35.31-P-1001-02A |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
215-245 |
215-245 |
215-245 |
TEST VALUES FOR FRICTION TORQUE OF REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Models 209.365/ 465 |
| BE35.31-P-1001-02G |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
215...245 |
TEST VALUES FOR FRICTION TORQUE OF REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Model 209.316/375/ 376/475/476 |
| BE35.31-P-1001-02D |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
- |
TEST VALUES FOR FRICTION TORQUE OF REAR AXLE CENTER ASSEMBLY
| Number |
Designation |
Model 209.342/343/ 361/442/461 |
| BE35.31-P-1001-02E |
Friction torque of drive pinion bearing (new tapered roller bearings) |
Ncm |
- |
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. COMMERCIALLY AVAILABLE TOOLS
| Number |
Designation |
| WH58.30-Z-1013-06A |
Wrench bit 41 mm hexagon 3 /4 inch four-point |
- Push pin wrench (040) and socket wrench bit 41 mm (040a) onto joint flange (41) and carefully tighten hexagon collar nut until specified friction torque is achieved.
When tightening the hexagon collar nut, rotate the drive pinion several times and by applying some light blows to the rear axle housing, ensure that the tapered rollers are correctly positioned in the bearing track.
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
- To check, fit the torque meter (040b) with connection piece (040c) on the 41 mm socket wrench bit (040a) and spin the drive pinion at approx. 60 rpm and read off the friction torque.
If the friction torque exceeds the specified torque, remove the drive pinion again and insert a new spacer sleeve.
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Under no circumstances may the friction torque be reduced by loosening the hexagon collar nut as otherwise the preload of the tapered roller bearings (43, 46) would be too low. The consequence would be play in the drive pinion while driving (47) and with it rear axle drive noise.
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
The tapered roller bearings (43, 46) of the drive pinion (47) must be installed with a certain pre-tension. This permanent preload is achieved by the spacer sleeve (44) located between the taper roller inner race and the drive pinion (47) being compressed when the hexagon collar nut (40) is tightened.
If the friction torque when cranking the drive pinion (47), i.e., if the pretension of the tapered roller bearing (43, 46) is too small, then the hexagon-collar nut (40) has to be slightly retightened. If the prescribed friction torque has been exceeded, then the drive pinion (47) has to be removed again and a new spacer sleeve (44) inserted.