power shift hydraulic dozer

the performance of the pump system to reduce torque variable speed hydraulic oil is mainly provided by a variable speed pump and reduce pump performance, lack of fuel supply system, power shift hydraulic dozer causing hydraulic oil can not fully play the role of the media, while not adequately lubricate all moving parts, so that the friction between the moving parts increases, a corresponding increase in the mechanical heat, but less than the predetermined number of hydraulic oil in the circulation can not be taken away excessive heat,lower price dozer resulting in high oil temperature.