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（１）检查高压油管两端小锥体形状是否完好，锥体与油管相交处的台肩是否平整。（２）将高压油管的两端整形，使其和喷油器或喷油泵的接管螺栓相吻合。（３）先拧紧喷油泵一端的油管紧固螺母，这时喷油器一端的锥体应与接管螺栓上的锥穴对正吻合；然后拧紧喷油器一端的油管紧
(1) Check the shape of the small cone at both ends of the high-pressure tubing is intact, cone and tubing at the intersection of the shoulder is smooth. (2) Shape both ends of the high-pressure tubing so that it fits into the spigot of the fuel injector or injection pump. (3) first tighten the fuel pipe fastening nut at one end of the fuel pump, then the cone at one end of the injector should coincide with the conical hole on the take-over bolt; then tighten the tubing tight at the injector