Pic. 6.5. Gearbox input shaft 084
1 - spring ring; 2 - remote washer; 3 - ball bearing; 4 - input shaft; 5 - needle bearing; 6 - gear wheel of the 3rd speed; 7 - synchronizer ring of the 3rd speed; 8 - spring ring; 9 - remote washer; 10 - 4th speed synchronizer ring; 11 - needle bearing; 12 - gear wheel of the 4th speed; 13 - spring ring; 14 - needle bearing; 15 - a ring supporting crackers; 16 - synchronizer hub; 17 - synchronizer housing; 18- synchronizer crackers; 19 - a ring supporting crackers.
2. Remove the 4th speed gear wheel 12 needle bearing 11.
3. Remove the 4th speed synchronizer ring.
4. Remove the support washer 9, and then, using tongs, remove the safety spring ring 8 of the synchronizer assembly of the 3rd and 4th speeds. Unbend the spring ring is not very strong.
5. While securing the puller under the 3rd speed gear, pull out the gear with the 3rd and 4th speed synchronizer assembly. Then disassemble the assembly and remove the 3rd speed synchronizer ring 7.
6. Remove the needle bearing of the 3rd speed gear 5.
7. Clean the elements in kerosene and check them for wear and damage. Check gear teeth and needle bearing shafts. If necessary, replace the elements with new ones.
8. Synchronizer assembly.
Installation
9. Begin assembly by placing the 3rd speed pinion needle bearing on the input shaft. Lubricate it with gearbox oil.
10. Install 3rd speed gear 6.
11. Install the 3rd speed gear synchronizer ring into the 3rd and 4th speed synchronizer assembly so that the synchronizer pieskis are in the notches of the ring. Then press the synchronizer assembly onto the splines of the shaft. If necessary, a metal tube can be used.
Attention: It is necessary to make sure that the groove on the hub is on the side of the 4th speed gear.
12. Place the safety spring ring 8 into the groove of the shaft, and then put on the spacer 9.
13. Place the 4th speed synchronizer ring on the 3rd and 4th speed synchronizer assembly so that the synchronizer cotters are in the cutouts of the ring.
14. Place the 4th speed needle bearing 11 on the shaft, lubricate it with gear oil, and then put on the 4th speed pinion 12.
15. Place the safety spring ring 13 in the groove and make sure it is seated correctly.
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