Figure 62. Gear shift drive:
1 - secondary shaft; 1st and 2nd gear shift fork; 3 - III and IV gear shift turns; 4 - V gear engagement fork; 5 - V gear engagement coil rod; 6 - retainer ball; 7 - retainer spring; 8 - retainer cover; 9 - guide axis of locking brackets; 10 - Reversing light switch; 11 - Three-arm gear selector lever; 12 - plug for locking the reverse gear engagement coil; 13 - reverse gear engagement coil; 14 - gearbox housing; 15 - locking brackets; 16 - gear selection mechanism housing; 17 - gear selector lever axis; 13 - gear selector lever spring; 19 - gear selection rod; 20 - gear selection rod lever; 21 - III and IV gear shift fork rod; 22 - shift fork rod for 1st and 11th gears; 23 - clutch housing; 24 - bushing; 25 - rod seal; 20 - conical screw for fastening the hinge; 27 - sewn hinge cover; 28 - gear shift drive rod hinge housing; 29 - hinge bushing; 30 - hinge axis; 31 - hinge tip; 32 - gear shift rod clamp; 33 - gear shift lever housing; 34 - gear shift drive rod; 35 - traction protective cover; 36 - ball joint of the lever; 37 - spherical lever pin; 38 - gear shift lever; 39 - lever finger; 40 - lever axle bushing; 41 - locking bracket.
The gear shift lever with its ball pin 37 rests on a plastic ball joint 36, which is located in the housing 33 of the lever, fixed to the floor of the body. Two plastic bushings 40 are pressed into the sleeve of the lever 38, through which the pin 39 passes, connecting the lever with the rod 34. The pin is locked with a bracket 41. The other end of the rod 34 is connected by means of splines and a clamp 32 to a hinge consisting of a housing 28 and a tip 31, pivotally connected to each other by an axis 30. The axis is pressed into the hole of the tip 31, and plastic bushings 29 are installed in the holes of the hinge housing. The parts of the hinge are covered with a rubber protective cover 27. The housing of the hinge is fastened to the rod 19 of the gear selection with a conical screw 26.
The gear selection rod 19 is installed in the holes of the clutch housing and rests on the outer end of the bushing 24. At the exit from the clutch housing, the rod is sealed with a seal 25. The gear selection lever 20 is fastened to the inner end of the rod with a conical screw. It interacts with the three-arm lever 11 of the gear selection mechanism. This mechanism is made as a separate unit and is fastened with three bolts to the clutch housing 23. In the housing 3 (figure 63) the gear selection mechanism has two axles. A three-arm gear selection lever 4 and two locking brackets 5 are mounted on axle 6, and axle 7 passes through the brackets 5, fixing them from turning. One arm of gear selection lever 4 is used to engage forward gears, the other is used to engage reverse gear, and the third arm is acted upon by lever 2 of the gear selection rod.
Figure 63. Gear selection mechanism parts:
1 - gear selection rod; 2 - gear selection rod lever; 3 - gear selection mechanism housing; 4 - three-arm gear selector lever; 5 - locking brackets; 6 - gear selector lever axis; 7 - guide axis of locking brackets; 8 - reverse gear fork; 9 - gear selector lever lock; 10 - Thrust washer of gear selector lever; 11 - lever spring.
Under the action of spring 4 (figure 64, II) lever 7 and locking brackets 6 move on their axes until ball 2 stops in the step on axis 5. In this position, the brackets lock fork 1 of the reverse gear with one end, entering its groove, and lock the fork of the first and second gears with the other end (as well as the fifth gear in a five-speed gearbox); the forward gear selection lever is set to the position of engaging III and IV gears.
[The information is published on the website: vazbook]
Figure 64. Gear selection diagram:
I - reverse; II - forward; 1 - reverse gear fork; 2 - retainer ball; 3 - retainer spring; 4 - gear selector lever spring; 5 - gear selector lever axis; 6 - locking brackets; 7 - three-arm gear selector lever; 8 - fork rod for shifting 1st and 2nd gears: 9 - fork rod for shifting 3rd and 4th gears; 10 - V gear engagement fork rod.
When the gearshift lever is moved laterally towards reverse, the force through the rod 34 (see figure 62) is transmitted to the gear selection rod 19, which, turning on its supports, moves the gear selection lever II and the locking brackets on their axes via the lever 20. In this case, the spring 4 (see figure 64, I) is compressed, and the bracket 6 comes out of the groove of the fork 1 of the reverse gear. Instead of the bracket, the shoulder of the lever 7 of the reverse gear selection enters the groove of the fork 1 and when the lever 7 is turned on its axis, the reverse gear is engaged. Thus, when the gear selection lever is moved along its axis, the gears are selected, and when it is turned on the axis, the gears are engaged.
The gear shift drive also includes rods 5 (see figure 62), 21 and 22 with forks fixed to them. The position of the rods is fixed by ball locks 6. Fork 4 enters the groove of the synchronizer clutch of the 5th gear, fork 3 - in the groove of the clutch of the 3rd and 4th gears, fork 2 - in the groove of the clutch of the 1st, 2nd gears and reverse, and fork 13 - in the groove of the intermediate gear of reverse.