Transmission input shaft assembly: 1 – a nut of a primary shaft; 2 – a gear wheel of the 4th transfer; 3 – a gear wheel of the 3rd transfer; 4 – a gear wheel of transfer of a backing; 5 - the inner ring of the front bearing; 6 - input shaft; 7 - gear wheel of the 1st gear; 8 - gear wheel of the 2nd gear; 9 - rear bearing input shaft
You will need:
- key "at 32"
- bearing press mandrel
- two screwdrivers
- goatee
- hammer
Thoroughly clean, rinse and dry the input shaft.
The input shaft is a block of drive gears, one part of which is made on the shaft, and the second is pressed on it with a large interference fit. Therefore, the design of the input shaft is non-separable and only bearings can be replaced on the shaft.
Troubleshooting the input shaft, its gears and bearings is similar to troubleshooting the output shaft (see subsection 11.1.3.).
1. Loosen the input shaft nut (see subsection 11.1.3., operations 1–6).
2. Clamp the shaft in a soft metal vise and compress the rear bearing with two screwdrivers.
3. Using a suitable mandrel, press the rear bearing onto the shaft until it stops, applying force only to the inner race of the bearing.
4. Turn the shaft over and compress the front bearing inner race.
5. Using a suitable mandrel, press the inner race of the front bearing onto the shaft as far as it will go.