像总泵、车轮、转向液压缸、微动阀、连杆、门架滚轮、转向桥等部位，只要靠紧固进行调整就能修理的故障。
Failures which can be solved by minor adjustment on brake pump, wheel, steering hydraulic cylinder, and micro-valve, connect level, mast roller, steering axle, etc. are excluded.
其 滚轮是装在与泵轴联接的滚轮架上，泵轴和泵体的内缘是同心的。
The rollers are installed on a roller shelf which is connected with a pump shaft, and the pump shaft is homocentric with the inner rim of a pump body.
该蠕动泵是 由几个滚轮滚动连续不断地压迫弹性软管，将流体按滚轮运动的方向输送。
In the peristaltic pump, a plurality of rollers roll to press an elastic hose continuously, so that liquid is transported in accordance with the movement direction of the rollers.
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