Range Shifting Mechanism - Belarus 1822.3 Operator's Manual

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.
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 gear-
box 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.
Figure 3.3.4 – Speed shifting mechanism
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