Shift Linkage: Description and Operation

GENERAL INFORMATION
Movement of gear shift control lever is transmitted to gear shift shaft through gear shift control shaft, and gear shift & select shaft through gear shift arm and gear shift yoke, and then gear shift & select lever to each gear shift yoke, shaft and fork or arm. Gear shift interlock plate is provided to prevent the gear from engaging double.





5TH & REVERSE GEAR SHIFT CAM
5th & reverse gear shift cam, cam guide return spring and 5th to reverse interlock guide bolt are provided to prevent the gear from being directly shifted from 5th to reverse.





1. When gear is shifted to 5th speed, 5th & reverse gear shift cam turns clockwise with gear shift & select shaft and it is pushed up by cam guide return spring to the position where interlock guide bolt prevents the cam from being shifted to reverse straight.





2. Shifting from 5th to neutral is available and further shift to reverse is interrupted.
However, when shift & select shaft is moved to neutral of 3rd-4th position, shift limit cam mechanism is canceled as shown in figure.





3. Selected position in neutral of 5th-REV is shown in figure. While shift & select shaft moves up to allow shift & select lever to shift in 5th or reverse position, shift cam stays because of interference of guide bolt.





4. Now the mechanism is ready to be shifted to reverse without interference of shift cam.