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D85型推土机采用液力传动、液压操纵，操作方便省力，工作效率高。但有时会出现“掉缸”现象，给正常工作带来较大影响。所谓“掉缸”，是指铲刀提升到一定高度后，发动机熄火，在不做任何操作的情况下，铲刀液压缸的活塞杆在铲刀自重作用下的伸出量。为方便测量，一般将此伸出
The D85 bulldozer adopts hydraulic transmission and hydraulic control, which is easy to operate and labor-saving and has high work efficiency. However, the phenomenon of “dropping cylinders” sometimes occurs, which has a great impact on normal work. The so-called “drop cylinder” refers to the amount of sticking of the piston rod of the hydraulic cylinder of the blade under the action of the weight of the blade when the blade is lifted to a certain height and the engine is turned off without any operation. For convenience of measurement, generally extend this