在做很多事情的时候，我们都想着要节省成本，为了更多的利润，我们更想成本是能低就低。有些人节省成本是盲目来的，这种盲目来的节省会让人感觉不舒服，就好像为了节省生活成本而不买新衣服一样，都是一种自己欲望的做法，有效但是自己不够快乐；还有一些人节省是凭靠技巧的，所以在实操起来没让自己感到不舒服，所以这就是知道技巧的好处。在工程机械行业，如果我们想要在操作机械的时候节省成本，我们应该怎样做呢？操作挖机加长臂的这个技巧，你未必知道。
When doing many things, we all want to save costs. In order to make more profits, we want to keep costs low. Some people save money blindly. This kind of blind saving will make people feel uncomfortable, just like not buying new clothes in order to save living costs. It is a practice of their own desire. It is effective, but they are not happy enough; Some people rely on skills to save money, so they don't feel uncomfortable in practice, so this is the advantage of knowing skills. In the construction machinery industry, if we want to save costs when operating machinery, what should we do? You may not know the skill of operating the lengthening arm of the excavator.
虽然说挖机加长臂看起来是一种很大型的机械，但用它来干一些比较细致的活也是可以的，就是在操作的时候，我们需要注意一下细节。而且将这些细节注意好我们在操作挖机加长臂的时候还可以达到省油的目的。这些细节指的就是以下几个方面了。
Although the excavator lengthening arm looks like a very large machine, it is also possible to use it to do some detailed work, that is, we need to pay attention to the details during operation. And pay attention to these details. We can also achieve the goal of fuel saving when operating the lengthening arm of the excavator. These details refer to the following aspects.
一是操作挖机加长臂的时候，没有必要将操作手柄行程弄到较大的位置，应该先由操纵手柄的小行程过度到大行程，中间应该有一个小的缓冲，这样挖掘机工作时动作才会顺畅、平稳。二是挖土的时候要熟悉一些小技巧。例如以斗杆油缸为主，以动臂油缸为辅，斗齿的角度根据斗杆的行进轨迹来调整。斗齿像刀切菜一样“插”入土中，而不是“拍”入土中。插到一定深度时，再完成勾斗，提臂。就是一个很好的挖土动作。
First, when operating the lengthening arm of the excavator, it is not necessary to make the stroke of the operating handle to a larger position. The small stroke of the operating handle should be transferred to the large stroke first, and there should be a small buffer in the middle, so that the excavator can operate smoothly and stably. The second is to be familiar with some skills when digging. For example, the stick cylinder is the main part, and the boom cylinder is the auxiliary part. The angle of the bucket teeth is adjusted according to the travel path of the stick. Bucket teeth are "inserted" into the soil like cutting vegetables with a knife, rather than "patted" into the soil. When it is inserted to a certain depth, the bucket is hooked and the arm is lifted. It is a good digging action.
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