One, arm lift slowly or weak
1, like when the excavator work, arm lift slowly.
2, the reasons for the analysis of the excavator arm lift, is the oil pump output pressure along the pipeline through the valve into the rear arm of the arm, the cylinder piston under the action of the hydraulic pressure to move through the piston rod will arm lift. In view of this, the speed of the arm lift and into the cylinder oil pressure and flow related. According to the input cylinder power equal to the output power of the cylinder, and then according to the input hydraulic cylinder power P is equal to the working pressure of the hydraulic cylinder and into the hydraulic cylinder flow of the product, then the arm lift slowly due to the input hydraulic cylinder Power reduction, that is, the input cylinder due to reduced power.
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