8.2.4. Dismantling of a primary shaft

The left-hand side of a primary shaft is in картере couplings, right — in картере transmissions.

For dismantling of a primary shaft it is necessary to make the following:

Fig. 183. Выпрессовка the conic roller bearing with sliding муфтой and a gear wheel of inclusion of the fourth transfer

- To establish the end of a primary shaft with corresponding press plates under a press, and corresponding press plates — in a flute sliding муфты, as is shown in fig. 183. To press a shaft end face. Thus an internal ring (fig. 182 see) the conic roller bearing, sliding муфта and a gear wheel 15 fourth transfers downwards fall. To remove a synchronizer ring;

Fig. 182. Details of a primary shaft: 1 — screw Torx with head М8; 2 — a spring lock ring; 3 — a gear wheel running, fifth transfer; 4 — an adjusting persistent ring of the conic roller bearing; 5 — an internal ring of the conic roller bearing; 6 — картер transmissions; 7 — a primary shaft; 8 — the needle bearing; 9 — a gear wheel of the third transfer; 10 — a ring of the synchronizer of the third transfer; 11, 13 — persistent rings; 12 — муфта a free wheeling with a switching nave; 15 — a gear wheel of the fourth transfer; 16 — the needle bearing; 17 — an adjusting washer; 18 — an internal ring of the conic roller bearing; 19 — a compensatory washer; 20 — an external ring of the conic roller bearing; 21 — картер couplings; 22, 26 — springs of synchronizers; 23 — a switching clamp; 24 — муфта a free wheeling; 25 — a synchronizer nave

- To remove a tension from a persistent ring 13. It is great enough. At its removal to operate very cautiously. The ring is pushed out by special flat-nose pliers, as is shown in fig. 184. That it thus did not jump aside, to substitute a hand. It is possible to protect a palm a thick layer of rags;

Fig. 184. Removal of a tension from a persistent ring over a nave of the synchronizer and under it

- Again to establish a shaft under a press and выпрессовать switching nave;

- To remove a tension from a persistent ring 11, to remove a ring 10 synchronizers and a gear wheel 9 for inclusion of the third transfer from a shaft. To remove from a shaft 7 needle bearing 8;

- If it is necessary, to take out from a nave of 25 springs of the synchronizer 22 and 26, and then to take out three stoppers 23. The nave and sliding муфту should be established in the complete set.