When the valve body is installed so that the lever of the variable-ratio-control valve misses the drive-pulley-follower pocket, the valve is unable to respond to the movement of the ratio-control motor, preventing ratio changes by the pulleys and keeping the transmission in low range. As a result of this action, it becomes a mechanical sensor influencing the variable-ratio-control valve, tailoring the feed fluid into the drive-pulley piston. With one end of the lever being in the ratio-control motor and the other end being in the drive-pulley follower (refer to Figure 5), the follower acts as a movable pivot point for the lever. This spring-loaded follower rides on the movable drive-pulley half as shown in Figure 4 and reacts to the movement of the drive pulley as it changes ratios. The opposite end of this lever then sits inside a pocket of the drive-pulley follower, as shown in Figure 3 from the valve-body side of the case with the valve body removed. The ratio-control motor indexes with a lever that is attached to the variable-ratio-control valve in the valve body (see Figure 2).
The ratio-control motor (stepper motor) is a bi-directional device situated on top of the valve body (see Figure 1).
The variable-ratio-control-valve lever has not been indexed correctly into the drive-pulley-follower pocket, or the ratio-control-motor lever has been wedged between the pintle and the housing.
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