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。
The governing behavior of hydraulic coupling has been expounded, and the causes resulting in unstability of outlet flow rate of the said pump being analysed.
阐述了液力联轴器的调节性能，分析了水泵出水流量不稳定的原因。
The delivery pipe (1) has a double-layer pipe body (2) which has in each case a coupling collar (7, 8) at the inlet-side pipe end (5) and at the outlet-side pipe end (6).
输送管（1）具有一 个双层的管身（2），该管身在入口侧的管端（5）上并且在出口侧的管端（6）上分别设置一个联接凸肩（7、8）。
The delivery pipe (1) has a double-layer pipe body (2) which has in each case a coupling collar (7, 8) at the inlet-side pipe end (5) and at the outlet-side pipe end (6).
输送管（1）具有一 个双层的管身（2），该管身在入口侧的管端（5）上并且在出口侧的管端（6）上分别设置一个联接凸肩（7、8）。
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