2022.3-0000010 OM
1 – fork; 2 – hood; 3 – sphere; 4 – spring; 5, 7 – pins; 6 – case; 8 – cover; 9 – shaft; 10 – spring; 11 – bolt; 12 – bushing; 13 – cover; 14 – key; 15, 20 – levers; 16 – switch; 17 – screw; 18 – bushing; 19 – lock ring. Figure 3.3.4 – Speed shifting mechanism In supports of the cover 13 (figure 3.3.4) and the case 6 the shaft 9 is mounted, to which the lever 15 and the bushing 12 are attached; two bushings 18 and the spring 10 are mounted between the lock rings 19. The bushings rest against the screw 17 and the end of the case 6 with their end surfaces. This system serves to set the lever into a neutral position. By means of pins 5 and 7, the lever 20 the shaft 9 is connected with the fork 1, to which the speed shifting lever is attached. The fork 1 is mounted in the case 6 in the sphere 3 and is supported by the spring 4. The switch 16 is mounted in the orifice of the control cover and is meant to prevent the synchronizer on the second shaft from engaging (passes “L=H” of the reduction unit) when the gearbox speed is engaged. ATTENTION: TO ADJUST THE SWITCH 16 (FIGURE 3.3.4) IT IS NECESSARY TO MOUNT A REQUIRED NUMBER OF ADJUSTING SHIMS. IF THE ADJUSTMENT IS NOT EFFECTED BY MOUNTING A REQUIRED NUMBER OF SHIMS, THEN IT IS NEEDED TO REPLACE THE SWITCH AND REPEAT THE ADJUSTMENT. 3.3.3.3 Range shifting mechanism The range shifting mechanism is installed in the case 54 (figure 3.3.2) of the gearbox and in the control mechanism case 1. In the control mechanism in supports of the cover 12 (figure 3.3.5) and the case 18 the shaft 9 is mounted, to which the levers 10 are attached by means of keys. The shaft 9 is secured by the ball lock 14 and by means of the pins 5 and 7 and the laver 6 the shaft is connected with the fork 1, to which the range shifting lever is attached. The fork 1 is mounted in the case 18 in the sphere 3 and is supported by the spring 4. 88
