1. Check if the surface of the unit is clean and tidy

地脚螺帽、飞轮螺钉和其它的运动机件螺帽是否有松动的现象，发现问题立马把它紧固。

Check if there is any looseness in the nuts of the foundation bolts, flywheel screws, and other moving parts. If any problems are found, tighten them immediately.

2、检查各部分间隙是否正确

2. Check if the gaps between each part are correct

要仔细的检查各个进排气门的间隙和减压机构间隙是不是达到要求。

Carefully check whether the clearance of each intake and exhaust valve and the clearance of the pressure reducing mechanism meet the requirements.

3、将各气缸置于减压位置

3. Place each cylinder in the reduced pressure position

转动曲轴检听各缸机件运转声音是否有异常的声响，曲轴可不可以运转自如，同时把机油泵进个摩擦面然后关上减压机构摇动曲轴。
 

Rotate the crankshaft to check if there is any abnormal sound during the operation of each cylinder's components, and check if the crankshaft can operate freely. At the same time, insert the oil pump into the friction surface and close the pressure reducing mechanism to shake the crankshaft.

4、检查燃油供给系统的情况

4. Check the condition of the fuel supply system

检查燃油箱盖上的通气孔顺畅不顺畅，如果孔里有污物要及时清除清洁加进的燃气是不是合适要求的牌号，油量充不充沛并打开油路开关。

Check whether the ventilation hole on the fuel tank cap is smooth or not. If there is any dirt in the hole, clean it in a timely manner and ensure that the added gas is of the appropriate grade. If the fuel level is insufficient, turn on the fuel circuit switch.

5、检查水冷却系统的情况

5. Check the condition of the water cooling system

检查水箱里的冷却水量充沛不充沛，如果水量不够要加满清洁的软水，检查接头水管是否有漏水的情况，发现问题立刻进行解决，检查冷却水泵的叶轮转动灵活程度，传动带松紧是否适当。

Check if the cooling water in the water tank is sufficient or not. If the water is not sufficient, fill it with clean soft water. Check if there is any leakage in the joint water pipe. If any problems are found, immediately solve them. Check the flexibility of the impeller rotation of the cooling water pump and whether the tightness of the transmission belt is appropriate.

6、检查润滑系统的情况

6. Check the condition of the lubrication system

检查机油管及管接头处有没有漏油现象，发现问题立刻进行解决，需要人工加油的油孔应加注机油做用油枪加注润滑脂。

Check for oil leakage at the oil pipe and pipe joints. If any problems are found, immediately solve them. Oil holes that require manual refueling should be filled with engine oil and lubricated with grease using an oil gun.