電機正常運轉(zhuǎn)但出水量少或根本不出水。這種情況應首先檢查不銹鋼自吸泵的密封，檢查時應先拔下電源插頭，用手堵住吸水口，把水泵灌滿水，用嘴銜住出口使勁往里吹氣，觀察泵頭是否漏水，漏水之處也是密封損壞之處。常見的故障部位有吸水口墊、出水口墊、葉輪蓋墊,維修時應更換。若無滿水現(xiàn)象，多是葉輪損壞、吸水室和出水室之間的擋水內(nèi)隔蝕穿、泵頭擋水隔磨平、葉輪和泵殼的間隙增大等，應更換葉輪和泵殼。更換趺輪時應注意徹底清除泵內(nèi)殘余的銅葉片，以免再次損壞新葉輪。機殼帶電。多數(shù)是水封損壞，水通過電機軸滲入電機內(nèi)使電機絕緣性能惡化所致，可采用更換水封、烘干電機等方法修復。需要注意的是，因為水泵長期與水接觸和露天工作，極易受潮而造成絕緣性能惡化，為了保證人身安全，電動不銹鋼自吸泵應可靠接地(圖\文www.ds128.cn/)。
中譯英：
Motor normal operation but less water or no water. This situation should first check the stainless steel self-priming pump seal, check should unplug the power plug, hands to block the water inlet of the water pump, filled with water, hold in the mouth of export tried to observe the pump head is blowing, water leakage, water leakage point also is the seal damage. Common fault location with a suction mouth pad pad, outlet, impeller cover pad, repair should be replaced. If there is no water phenomenon, is damaged impeller, water absorbing chamber and outlet chamber between the water retaining internal septum erosion wear, pump water across the flat, impeller and pump shell enlarge the gap, replace the impeller and the pump shell. Replacement: wheel pump should pay attention to the elimination of residual copper leaf, in order to avoid further damage to the new impeller. Shell charged. Most of water damage, water into the motor through a motor shaft within the motor insulation deterioration caused by the replacement of water, drying, motor repair. Note that, because the pump long-term contact with water and opencast working, easy to damp caused deterioration of insulation performance, in order to ensure the safety of the people, electric stainless steel self-priming pump shall be reliably grounded.
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