Reduction Timing Valve

Reduction Timing Valve

Outline
^ The reduction timing valve switches the oil passage according to the operation of the reduction timing solenoid. By this valve, the reduction reducing valve pressure adjustment point changes.

Operation
^ Spring force is applied to the bottom end of the valve and pushes the valve upward. Conversely, reduction timing solenoid pressure (15) is applied to the top end of the valve and pushes the valve downward.
^ When the reduction timing solenoid is in the OFF condition, the reduction timing valve is positioned on the upper side by spring force, and back pressure of accumulator control valve B (22) is applied to oil passage (39) of the reduction reducing valve.
^ When the reduction timing solenoid is in the ON condition, the reduction timing valve is positioned on the lower side below and oil pressure is not applied to the reduction reducing valve.