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9.3 精密偶件的检验和修理 9.3.1 柱塞偶件的检验一般检查:在直观检查时,如发现下列情况之一者应予报废:柱塞表面严量磨损、柱塞头端面斜槽及环槽边缘出现剥落或锈蚀、柱塞上出现裂痕,柱塞弯曲或头部变形、柱塞套有裂痕、柱塞套端面和内孔表面有锈蚀或深的刻痕、柱塞下端凸起部分与柱塞体发生松晃或脱落。滑动性能试验:将柱塞偶件在柴油机中浸泡后,用手指拿住柱塞套,倾斜45°,轻轻抽出柱塞三分之一,然后松开,柱塞应在本身重量下自由下滑,落在柱塞套的支承面上。然后再次将柱塞抽出,转动一个角
9.3 Inspection and repair of precision couplings 9.3.1 Inspection of plunger couplings General inspection: If any one of the following conditions is found to be discarded during visual inspection, the plunger surface is severely worn, the head end face chute and Peeling or rusting on the rim of the ring groove, cracks on the plunger, deformation of the plunger or deformation of the head, cracking of the plunger sleeve, corrosion or deep scoring of the end face of the plunger sleeve and the inner hole, Loose or loose with plunger body. Sliding performance test: After immersing the plunger in the diesel engine, hold the plunger sleeve with your fingers, tilt 45 °, gently pull out one third of the plunger and then release, the plunger should slide freely under its own weight , Falling on the bearing surface of the plunger sleeve. Then pull the plunger out again and turn one corner