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973履带装载机静液压传动系统中由以下具有各自功能的系统组成。（1）供油泵和滤清器系统（2）降速和超速系统（3）运行一制动滑阀系统（4）伺服控制系统（5）杜塞泵、驱动马达和主安全阀系统（6）传动油冷却系统问）双速双达换档系统该机液压系统中，供汕泵为系统提供压力油，
The 973 Track Loader Hydrostatic Drive consists of the following systems with their own respective functions. (1) Fuel Supply and Filter Systems (2) Deceleration and Overspeed Systems (3) Operation of a Brake Piston System (4) Servo Control System (5) Düsseldorf Pump, Drive Motor and Main Safety Valve System ) Transmission oil cooling system Q) Two-speed double up shift system The aircraft hydraulic system for Shantou pump system to provide pressure oil,