Fig. 3.67. Installing the primary shaft and differential shaft
Install the main gear housing and tighten the primary shaft fasteners to the rated tightening torque (Fig. 3.67).
Tightening torque: 37.3–52.0 Nm.
Fig. 3.68. Measuring the differential shaft load using a torque wrench
Install a special device and a dynamometer or torque wrench (Fig. 3.68).
Make sure the preload is within normal limits.
If this is not the case, repeat the operations, starting with adjusting the bearing tension.
- Preload: 1.4–1.9 Nm.
- Dynamometer readings: 14–19 N.
Remove the special device.
Fig. 3.69. Measuring the primary shaft load using a torque wrench
Install the gearbox in the block with the main gear, as shown in Figure 3.69, install the special device on the input shaft.
Make sure the preload is within normal limits.
If this is not the case, repeat the operations, starting with adjusting the bearing tension.
- Preload: 0.12–0.39 Nm.
- Dynamometer readings: 1.2–3.9 N.
Remove the special tool, final drive housing, input shaft and differential.
Install the secondary shaft and final drive housing, tighten the fasteners to the rated tightening torque.
Tightening torque: 37.3–52.0 Nm.
Fig. 3.70. Measuring the secondary shaft load using a torque wrench
Install a special device and a dynamometer or torque wrench (Fig. 3.70).
Make sure the preload is within normal limits.
If this is not the case, repeat the operations starting with adjusting the tension in the bearings.
- Preload: 0.2–0.3 Nm.
- Dynamometer readings: 2–3 N.
Remove the special tool and the final drive housing.