6.2.4. Dismantling of a main shaft

Fig. 4.15. Details of a main shaft: 1 — the sliding coupling; 2 — a synchronizer nave; 3 — the blocking synchronizer ring; 4 — a gear wheel of the V transfer; 5 — the needle bearing; 6 — a main shaft

Details of a main shaft are represented in fig. 4.15.

Fig. 4.16. Removal of the bearing of a main shaft

Fig. 4.17. Removal of a persistent washer of the synchronizer V of transfer

Fig. 4.18. Removal of a nave of the synchronizer V of transfer

Fig. 4.19. Check of a gap between the blocking ring of the synchronizer and a cone of a gear wheel

Fig. 4.20. Measurement of a gap of a lock ring of the synchronizer V of transfer

Fig. 4.21. Measurement of a gap of a lock ring from the bearing

Remove a lock ring of a main shaft from coupling and take a washer. Press the bearing from a main shaft (fig. 4.16). Uncover the bearing case. Turn a shaft and remove a lock ring and a persistent washer of the synchronizer V of transfer (fig. 4.17). Press a nave of the synchronizer V of transfer (fig. 4.18). Remove an intermediate gear wheel of transfer of a backing and its needle bearing. Check a condition of details, in particular, the gap between the blocking ring of the synchronizer and a cone of a gear wheel has to be not less than 0,7 mm (fig. 4.19), a gap of a lock ring synchronizer of the V transfer — 0,1 mm (fig. 4.20) and a gap of a lock ring from the bearing — 0,1 mm (fig. 4.21).