巧拆与巧断●明诚１．拆装巧用车上件当遇上专用修理工具比较缺乏，特别是机车在野外作业发生故障时，往往使人束手无策。这时机手若会巧妙地利用机车上的某些零件或部位帮助拆装，有时能够收到满意的效果。举例如下：（１）用气门推杆拆装气门锁夹将发动机活塞摇至上止点... Cleverly split and clever ● Ming Cheng 1. Disassembly clever use of the car when the case of special repair tools are relatively lacking, especially locomotives in the field when the operation fails, often make people helpless. At this time, if the clever use of locomotives will be some of the parts or parts to help disassembly, and sometimes be able to receive satisfactory results. Examples are as follows: (1) Removal and assembly of the valve with the valve lever lock lever to the engine piston to the top dead center ...