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与东方红—75、802拖拉机及铁牛—55拖拉机主发动机配套的起动机,是曲轴箱换气式单缸二冲程汽油机.以往检查点火时间(将磁电机安装于起动机时),是卸下火花塞,插入量尺,顺转飞轮,使活塞上行顶住量尺至上止点后,再逆转飞轮使活塞下行5.8毫米位置,此时磁电机活动触点刚开始张开时所对应曲轴转角为27°,此为正确的点火时间.但在使用过程中此法较麻烦,而且在拆卸火花塞时往往因泥土打扫不干净而落入气缸内,增加不必要的磨损而降低机件的使用寿命.在实践中有一简便方法,其步骤是:打开加油阀,用拇指按住加油口并听声响,顺转飞轮,当拇指有压力感并听到排气声时,说明气缸开始压缩.当压力由大变小至压力消失或排气声由大变小至无,证明活塞已行至上止点.此时应反转飞轮.同时观察磁电机传动齿轮的槽口方向,当拇指稍有吸力感时,当槽口方向与地平面垂直时,停止转动飞轮,磁电机活动触点刚开始张开,此时便是正确的点火时间.更换S195型,S1100型柴油机的主轴瓦和连杆瓦时,一般都要将曲柄在连杆机构和配气机构拆卸后才能进行,比较麻烦费时.为此建议:当遇到柴油机烧瓦抱轴,只需更换主轴瓦和连杆瓦,其他零件不需维修时,可采用以下简便方法进行.1.若曲轴转不动,可先卸下飞轮上的皮带轮,用螺丝刀撬下止退圈锁片,然后用随机?
And Dongfanghong -75,802 tractor and tractor main tractor iron tractor engine supporting the starter, the crankcase ventilation single-cylinder two-stroke gasoline engine. In the past to check the ignition time (magneto installed in the starter), the unloading Under the spark plug, insert the measuring rule, turn the flywheel so that the piston upward to withstand the measuring tape to the top dead center, and then reverse the flywheel so that the piston down 5.8 mm position, this time when the magnetic motor contacts open when the crank angle corresponding to 27 ° , This is the right ignition time.But in the course of this method is more trouble, but also in the removal of spark plugs often clean and dirty due to dirt fall into the cylinder, to increase unnecessary wear and tear to reduce the service life of the parts in practice There is a simple method, the steps are: open the fuel valve, press and hold the filler with your thumb and listen to the sound, turn the flywheel, when the thumb pressure and hear the exhaust sound, the cylinder began to compress .When the pressure changes from large Small to the pressure disappears or exhaust sound from big to small to prove that the piston has been to the top dead center .At this time should flywheel.At the same time observe the magnetic motor drive gear notch direction, when the thumb slightly suction sense, when Notch direction and ground plane Straight, stop turning the flywheel, magneto motor contacts just beginning to open, this time is the correct ignition time.Replace S195, S1100 diesel engine main bearing and connecting rod, the general should be in the connecting rod It is more troublesome and time-consuming to disassemble the mechanism and the valve train, so we suggest that when it comes to the burning of the diesel engine, only the main bearing and the connecting rod shims need to be replaced, and other parts can be repaired by the following simple methods .1. If the crankshaft does not move, remove the pulleys from the flywheel, pry the stop tab with a screwdriver, and then use the random?