译文：
屏蔽泵的检修方法是：将屏蔽泵进行解体：对各零件先进行清理，再对它们作表观检查，是否有异常。然后对关键部位的尺寸进行测量，对电机绕组作电气检查。 屏蔽泵机械检查 一、机械检查 1、测量石墨轴承的孔径和轴套的轴径，并察看它们配合面的光洁度。如石墨轴承和轴套的配合间隙超过检修标准的规定（0.55—11kw配合间隙，直径差为0.4㎜，15—45kw配合间隙，直径差为0.5㎜）或配合面光洁度不良时，需根据情况更换轴承、轴套或推力板。 2、测量检查叶轮的上、下外止口和与它们相配合的扣环及泵座内径的尺寸，这两个配合间隙是否在检修标准规定的范围内，超差时需更换零件或采取其它措施（如：堆焊、镶套）使配合间隙达到规定要求。否则将影响泵的性能、流量、扬程、轴向平衡力等。 3、观察检查定、转子屏蔽套的表观情况，尤其要注意焊缝处有无异常情况，必要时应作探伤、检漏检查。 4、经过长期运行后，转动部分的平衡情况可能有变化。因此，有必要将转子连同叶轮等旋转零件组装在一起做动平衡试验。 二、电气检查 1、直流电阻检查：三相电阻的不平衡度不得超过2%。 2、绝缘电阻检查：屏蔽泵电机绕组的绝缘电阻一般能达到100MΩ以上。如低于5MΩ时需分析原因，绝缘是否受潮，或屏蔽套是否有泄漏点等，如经定子屏蔽套检漏无问题，则纯属绝缘受潮，需进行干燥处理，如定子屏蔽套有问题，则需更换屏蔽套。

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原文：
Shielding pump repair methods are: the disintegration of the shield pump: clean up the various parts first, then check them to make apparent whether there are abnormal. Then measured the size of key parts, the motor windings for electrical inspection. Shielding pump mechanical inspections A mechanical inspection 1, measurement of graphite bearings and bushings the shaft diameter, and look at them with the surface finish. Such as bearings and bushings with graphite clearance than the standard maintenance requirements (0.55-11kw with the gap, 0.4 mm diameter difference ,15-45kw with the gap difference of 0.5 mm in diameter) or with poor surface finish, the need to change according to circumstances bearings, bushings or thrust plate. 2, measurement check the impeller, the next stop outside the mouth and with their matching ring and pump diameter seat size, both with the space provided whether the maintenance of standards within the required replacement parts when the ultra-poor or take other measures (such as: welding, set set) to meet the required clearance requirements. Otherwise affect the pump performance, flow, head, axial balancing, etc.. 3, observation check the stator and rotor set of the apparent shielding situation, with particular attention to weld with or without exceptions, where necessary, for testing, leak checking. 4, after a long run, the rotating part of the balance may have changed. Therefore, it is necessary to rotate the rotor with the impeller and other parts assembled together, doing dynamic balance test. Second, electrical inspection 1, the DC resistance of examination: three-phase unbalanced degree of resistance should not exceed 2%. 2, insulation resistance check: canned pump motor winding insulation resistance of 100MΩ or more generally to achieve. Less than the time required to analyze the causes 5MΩ, insulation is wet, or isolating leaks spots, such as leak detection by Stator Shield no problem, is entirely insulated wet, dry and in need of treatment, such as Stator Shield problems need to replace screen sets.