維修保養是恢復工程機械性能，延長其使用壽命的有效手段。對機械定期進行保養能夠使機械經常處于完好狀態,隨時可以啟動運轉或出車,不致因中途損壞而停機，在使用過程中不致因機件事故而影響安全或行駛，因此一定要對機械定期進行檢查保養。

1、目視檢查：起動機車前應進行目視檢查。檢查是否有機油、燃油和冷卻液泄漏，是否有松動的螺栓和螺母，電氣線路中是否有電線斷裂、短路和電瓶接頭松動，是否有油污，是否有民物積聚。
Visual inspection: Before starter car should be visually inspected. Check for oil, fuel and coolant leaks, if there are loose bolts and nuts, electrical lines if there is wire breakage, short circuit and battery connector is loose, if there is oil, whether China buildup.
2、起動發動機后檢查鳴笛與所有的儀表是否完好，發動機的起動狀態、噪聲與尾氣顏色及是否有機油、燃油和冷卻液泄漏。
After starting the engine check the whistle with all the instrumentation is intact, the starting state of the engine, exhaust noise and color and whether there is oil, fuel and coolant leaks.
3、機油在柴油機的使用中是必不可少的，主要起潤滑、冷卻、清潔等作用。因此，要注意檢查潤滑油的油量并按標準添加。
In the use of diesel oil is essential, mainly from lubrication, cooling, cleaning and so on. Therefore, we should pay attention to check the oil in the oil according to the standard addition.
4、為了容易擰緊螺母和防止銹蝕，不少修理工在輪胎的螺栓螺母上涂油。實際上這是一種錯誤做法。因為輪胎螺母擰緊后，螺紋間就具有自鎖的特征。
In order to easily tighten the nut and prevent corrosion, a lot of the tire repairman oiled bolt nuts. In fact this is a wrong approach. Because the rear tire tighten the nut, it has a self-locking threaded between the features.
5、測量汽缸間隙時，應在活塞裙部垂直于活塞銷孔的方向測量。
When measuring cylinder gap should be measured in the direction perpendicular to the piston skirt piston pin hole.

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