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1st Speed in
Position
At
position, hydraulic pressure is applied to the 1st clutch and to the 1st-hold clutch.
The power flow when accelerating is as follows;
1.
Hydraulic pressure is applied to the 1st clutch on the mainshaft, and power is transmitted via the 1st clutch to the
mainshaft 1st gear.
2.
Power transmitted to the mainshaft 1st gear is conveyed via the countershaft 1st gear to the one-way clutch on the
inside of the countershaft 1st gear. The one-way clutch is used to drive the countershaft.
3.
Power is transmitted to the final drive gear and drives the final driven gear.
Hydraulic pressure is applied to the 1st-hold clutch, but the countershaft is rotated by the one-way clutch.
The power flow when decelerating is as follows;
1.
Rolling resistance from the road surface through the rear wheels to the final drive gear, then to the countershaft 1st
gear via the 1st-hold clutch, which is applied during deceleration.
2.
The one-way clutch becomes free because the countershaft is rotating in reverse.
3.
The counterforce conveyed to the countershaft 1st gear turns the mainshaft 1st gear. Since hydraulic pressure is also
applied to the 1st clutch, counterforce is also transmitted to the mainshaft. As a result, engine braking can be
obtained with 1st gear.
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