原文：
叉车齿轮泵主要零件的维修方法： 1、 叉车齿轮：齿轮外圆磨损及胶合，使径向间隙增大，轻者对使用无明显影响，可不比修理；严重者应予更换齿轮。 2、齿轮两侧端面磨损，轻者起线，可用 研磨将毛刺痕迹研磨掉；磨损严重时，可在磨床上磨平。但只要一只齿轮端面磨损，另一只齿轮也需同时磨削，以保证两只齿轮的厚度差在0.005mm以内。磨削时还应注意端面与孔、端面与端面的精度要高。磨削后应用油石磨去锐边毛刺，但不宜倒角。 3、油泵齿轮都是单方向工作，因而齿面都是单面磨损。可将齿面磨损的齿轮用油石去掉毛刺，调换齿轮啮合方位，可恢复油泵的工作性能。 4、叉车齿轮轴承架：端面磨损或起线拉毛时，可将四只轴承架在平面磨床上，以非齿轮接触面为基准，一次将端面磨出。 5、内孔一般磨损较小，若磨损严重时，可用研磨或将孔径磨大至修理尺寸、选配滚针。 6、装有侧板或轴向浮动的轴套磨损、划伤和沟痕时，可将损伤的表面进行抛光。方法是在平滑表面上放上no400-600的研磨膏，加上洗油或蜡在侧板表面上轻轻转动，进行抛光。 7、叉车齿轮泵体：泵体磨损一般发生在吸油腔，某些油泵从构造上可用换位法进行修理，即将泵体绕本身轴线180°，使吸油腔变成压油腔以恢复其工作能力。 8、不能用换位法修理的油泵体，可用镶铜套法修复。 9、当齿轮因端面磨损而进行磨削后，为保持轴向间隙，需将泵体后端面磨至适当厚度。

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译文：
Major parts forklift gear pump maintenance methods: 1, forklift gear: cylindrical gear wear and glue, so that the radial clearance increases, the light had no effect on the use, from time to repair than that; serious gear should be replaced. 2, gear wear and tear on both sides of face, the light from the line, can be signs of grinding out grinding burrs; wear serious, can be polished in the grinder. But as long as a gear face wear, while the other gear grinding also need to ensure that the thickness difference of two gears within 0.005mm. Grinding should also pay attention to face with the hole and face and the face of higher precision. Grinding sharp edges wore off after the application of Whetstone glitch, but not chamfered. 3, oil pump gears are working at one direction, which are single tooth wear. Can wear the gear tooth surface to remove oil stone burr, swap gear meshing position, restore the pump performance. 4, forklift bearing rack gear: face wear or scuffing from the line, can be four planes in the plane grinding machine bearings, non-gear contact surface as the base, one will face milled. 5, the hole usually wear small, if the wear serious, grinding or aperture can be used to repair large mill size, matching needle. 6, equipped with side or axial float of shaft wear and tear, scratches and grooves, it can damage the surface will be polished. Is placed in the smooth surface grinding paste no400-600, together with wash oil or wax in the side surface rotate gently polishing. 7, forklift gear pump: pump wear generally occurs in the suction chamber, some of the oil pump from the structure conversion method available for repairs, will pump around its axis 180 °, so that the oil suction chamber into a pressure chamber to resume its work capacity. 8, can not repair the pump body conversion method can be used set of copper cuff repair. 9, when the gear face wear due to grinding, in order to maintain the axial clearance is required after the end mill will pump to the appropriate thickness.