The links are connected from the shift lever (4) to the shift forks (1), (2) as shown in the figure. Each speed from the 1st to 4th can be changed by a single shift lever (5).
When the shift lever (5) is moved to the left, the shift lever (5) is engaged with the 1-2 shift fork (1), allowing the operator to change the 1st or the 2nd speed.
When the shift lever (5) is moved to the right, the shift lever (5) is engaged with the 3-4 shift fork (2), allowing
the operator to change the 3rd or the 4th speed.
