I am in the process of building a branch trimmer attachment to a loader bucket. I consists of a hydraulic motor coupled to a shaft via a belt to increase the circular blade speed. I want to run the blade CW viewed from the shaft. I understand that I can change the rotation by changing position of the hoses to the motor port. Once the rotation is established, will the rotation possibly change just by turning the tractor on-off, or do I need another device to insure the rotation is always CW? The motor is driven by a speed control valve.