Measure gear backlash between ring gear and pinion, correct if necessary - AR35.31-P-0550-25C
| Number | Designation | Model 124 | Model 129 | Model 170 | |
|---|---|---|---|---|---|
| BE35.31-P-1002-03A | Gear backlash between ring gear and pinion | mm | 0,08-0,14 | 0,08-0,14 | 0,08-0,14 |
| Number | Designation | Model 201 | Model 202 | Model 203 | |
|---|---|---|---|---|---|
| BE35.31-P-1002-03A | Gear backlash between ring gear and pinion | mm | 0,08-0,14 | 0,08-0,14 | 0,10-0,16 |
| Number | Designation | Model 208 | Model 209 | Model 210 | |
|---|---|---|---|---|---|
| BE35.31-P-1002-03A | Gear backlash between ring gear and pinion | mm | 0,08-0,14 | 0,10-0,16 | 0,08-0,14 |
Insert and clamp backlash measuring instrument (037) with dial indicator in left-hand bore in differential case.
- Set dial indicator to "0" with 3 mm preload.
- Hold drive pinion at joint flange and move dial indicator holder alternately to left and right using handle (arrow) while reading off gear backlash.
- Carry out measurement 4 times. Turn ring gear approx. 90° further each time.
The adjustment of the tapered roller bearings and gear set is OK if the spread dimension (expansion) of the rear axle housing and the gear backlash are within the range of the specifications. If these values are not achieved, the adjustment must be repeated using thinner or thicker circlips as appropriate.
1st example
Measurement: The gear backlash is correct but the spread dimension of the rear axle housing is too low, e.g. 0.05 mm measured spread dimension value.
Correction: Mount a 0.05 mm thicker circlip on both sides, in the process the gear backlash can change slightly!
2nd example
Measurement: The spread dimension is correct, but the gear backlash is too large.
Correction: On the left assembly side a circlip should be installed which is thinner by the missing amount.
Install a thicker circlip on the right-hand side (ring gear side).
If the gear backlash is too low, proceed in the opposite manner.