3) OPERATION OF TRANSMISSION OPERATION OF TRANSMISSION (4 speed transmission) (1) Η Forward Forward Forward 1st Forward 1st In 1st forward, forward clutch (KV) and 1st clutch (K1) are engaged. Forward clutch and 1st clutch are actuated by the hydraulic pressure applied to the clutch piston. OUTPUT 7577APT04 F1 3-7 KR KV IN K4 K2 INPUT K3 K1 OUT GEAR PATTERN K1 K3 K4 OUTPUT KR KV K2