Abstract: A brake condition warning system for liquid cooled brakes that includes an indicator showing whether pressure in the cooling liquid passing through the erodable brake members has exceeded an acceptable valve which corresponds to an excessive amount of brake wear. Also, there may be included temperature sensitive means for sensing the temperature of the liquid in the chamber preventing the pressure indication until the cooling liquid has reached a predetermined operating temperature thus preventing false indications of excessive wear due to the viscosity of cold cooling liquid.

Abstract: The transmission control for a vehicle hydraulic transmission includes a sequence control valve that includes a shuttle valve and an interconnected sequence valve which are connected with speed and direction clutches of the transmission. The shuttle valve senses the drop in pressure in the direction clutches when they are shifted to actuate the sequence control valve to initially dump the speed clutch and then to keep that clutch disengaged until the direction clutch has fully re-engaged.