Determining Shim Thickness
The specified bearing preload is reached by adding a constant preload figure 0.10 to 0.15 mm to the reading obtained and the thickness of the installed shim.
Example:
| Inserted adjusting shim | 0.65 mm |
| + measured value | 0.20 mm |
| + Preload (constant value) | 0.15 mm |
| Adjusting shim thickness | 1.00 mm |
Example:
| Bearing Play = (adjustment shim 0.65 mm plus the measured value) | Adjustment Shim Thickness According to the Table |
|---|---|
| 0.850 mm | 1.000 mm |
-- Remove the output shaft and then remove the small taper roller bearing outer race, refer to Removing the Small Outer Race/Tapered Roller Bearing .
Adjustment Shim Table
| Bearing Play = (adjustment shim 0.65 mm plus the measured value) | Adjustment Shim Thickness (mm) |
|---|---|
| 0.650 0.660 to 0.689 | 0.750 0.800 |
| 0.690 to 0.739 0.740 to 0.789 0.790 to 0.839 | 0.850 0.900 0.950 |
| 0.840 to 0.889 0.890 to 0.939 0.940 to 0.989 | 1.000 1.050 1.100 |
| 0.990 to 1.039 1.040 to 1.089 1.090 to 1.139 | 1.150 1.200 1.250 |
| 1.140 to 1.189 1.190 to 1.239 1.240 to 1.289 | 1.300 1.350 1.400 |
| 1.290 to 1.339 1.340 to 1.389 1.390 to 1.429 | 1.450 1.500 1.550 |
-- Install the shim with the correct thickness, thickest shim first.
- If the previous 0.65 mm adjustment shim will be inserted again, check it for damage.
If the measured shim thickness is larger than those listed in the table, then install two shims that add up to the necessary thickness.
Tolerance variations make it possible to find the exact shim thickness required.
-- Install the small tapered roller bearing outer race with the shim (1.00 mm in the example), refer to Installing the Small Outer Race/Tapered Roller Bearing and then install the output shaft. Tighten the bearing mount nuts in the clutch housing to 25 Nm + 90° (1/4) additional turn.