Patent ID: 8240779

Claim:
A control for use in a hydraulic circuit having a spring applied-pressure released brake and a hydraulic motor, the control comprising: a manifold housing; a movable valve member disposed in the housing and movable between operating positions to selectively control fluid communication between the brake and a primary pressure source and to selectively control fluid communication between the motor and the primary pressure source, wherein the valve member includes a bore; a movable pump member disposed in the bore, the pump member being moveable to change the volume of an auxiliary fluid pressure source when the brake is not pressurized by the primary pressure source, the valve member being moveable to provide for selective communication between the auxiliary pressure source and the brake, wherein the bore defines a pump chamber for the auxiliary fluid pressure source; and a handle operatively connected to the valve member and to the pump member so that movement of the handle results in selective movement of the valve member and the pump member; wherein the housing includes a first passage in communication with the brake and a second passage in communication with the primary pressure source, the valve member being movable between a first operating position and a second operating position, wherein when in the first position the valve member being positioned to allow fluid communication between the primary pressure source and the brake.