单体式喷油泵齿杆不灵活的原因及修理方法上思县农机校谭影航一、使用安装不当所致１．漏装柱塞套定位螺钉的小钢垫；或者随意做一个纸垫垫上，致使垫片过薄；或者是新更换的定位螺钉过长。排除方法：增加适当厚度铜垫；可自制几个纸垫代用；或将过长的定位螺钉在砂轮上磨... Single fuel injection pump rack rod inflexible reasons and repair methods Shangsi County Agricultural Machinery School Tan Ying Hang First, the use of improper installation 1. Leakage of the plunger sleeve set screw small steel pad; or arbitrarily make a mat pad, resulting in the gasket is too thin; or the new replacement of the screw is too long. Remedy: increase the appropriate thickness of the copper pad; can be made of several paper pad alternative; or will be too long set screws on the grinding wheel ...