Connect hydraulic nut to oil pump and screw in dial gauge.

将液压螺母与油泵连接并用千分表拧紧。

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It is an important factor for the perfect matching between the maximal input power of the hydraulic oil pump and the maximum output power of the engine in the design process of the hydraulic shovel.

液压油泵的最大输入功率与发动机的最大输出功率之间的匹配问题是液压挖掘机设计过程中的一个重要内容。

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Fill oil into the oil tank, when the hydraulic pump is full of oil fluid, manually turn the coupling, till there is no bubble in the oil outlet.

向油箱灌油，当油液充满液压泵后，用手转动联轴节，直至泵的出油口出油并不见气泡时为止。

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It is powered by an engine which drives a hydraulic pump to send oil under high pressure around its plumbing in order to animate its limbs.

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