长臂挖掘机

省时 省力 省财富

加长臂挖掘机租赁时如何分辨机器的好坏？这个问题大家应该都遇到过，下面小编就来为您进行解答。

How to distinguish the quality of the machine when leasing the extended boom excavator? You should have met this problem before, and the following editor will answer it for you.

观察大、小臂和铲斗的卸压情况了，如果大、小臂和铲斗同时卸压，而且用肉眼都能看出来卸压卸得很快，那么可以断定整个液压系统都磨损严重了，没有修复的价值了。如果是单独的卸压，而且还不是太快，那就可能是油缸油封或控制阀内泄的问题，二手机也算正常。如果没有一个卸压的，几乎就能考虑入手了。

The pressure relief of the boom, jib and bucket has been observed. If the boom, jib and bucket are depressurized at the same time and it can be seen with the naked eye that the pressure relief is fast, then it can be concluded that the entire hydraulic system is seriously worn and has no repair value. If it is a separate pressure relief, and it is not too fast, it may be the problem of internal leakage of the oil cylinder oil seal or the control valve. The second mobile phone is also normal. If there is no one to relieve the pressure, we can almost start with.

接下来就是试行走马达和回转马达了，两个行走马达是液压系统的两个流量计，首先在怠速下看行走马达是否可以原地转圈，如果可以轻松转圈发动机也没有要熄火的现象，说明车的性能还不错。加大油门，分别支起两边的履带，耳朵靠近听行走马达有无异响，看1分钟内两边的履带转动的圈数是否一致，工作泵有无异响。

Next is the trial running of the walking motor and the rotary motor. The two walking motors are the two flow meters of the hydraulic system. First, check whether the walking motor can rotate in place at idle speed. If it can rotate easily, the engine does not need to shut down, indicating that the car's performance is good. Increase the accelerator, support the tracks on both sides respectively, listen to whether the traveling motor makes abnormal noise when your ears are close to it, check whether the number of turns of the tracks on both sides is consistent within one minute, and check whether the working pump makes abnormal noise.

再就是看回转马达了，分别向左右单做回转动作，听回转马达有无异响，在回转手柄到很大量时，忽然松开看回转马达刹车是否正常。这些都试完后，看销轴磨损情况。如果条件允许的情况下，工作几个小时试试整机的整体性能，动作的连惯性，灵活性能。通过上述试机，对整机的综合性能做出评估。

Then look at the slewing motor, swing left and right separately, listen to the slewing motor for abnormal noise, and when the slewing handle reaches a large amount, suddenly release it to see if the brake of the slewing motor is normal. After these tests, check the wear of the pin shaft. If conditions permit, work for a few hours to test the overall performance of the whole machine, its inertia and flexibility. Through the above test run, the comprehensive performance of the whole machine is evaluated.

此外试机前一定要检查机油和水，然后着车，看启动是否正常，听发动机声音有无异常，把大臂提到很高位，小臂伸到很高位，铲斗翻到位，这时下车不要熄火，看发动机是否下喘气严重，如果下喘气严重，就意味着发动机到大修的时候了。

In addition, the engine oil and water must be checked before the test run, and then you must get off the vehicle to see whether the starting is normal. Listen to the engine sound for abnormalities. Raise the boom to a very high position, extend the jib to a very high position, and turn the bucket to the right position. At this time, do not stop the engine. Check whether the engine is panting seriously. If the panting is serious, it means that the engine is time for major repair.

在租赁挖掘机的时候，认真仔细的观察，亲自试机，不放过任何一个有可疑地方的零部件，才能很大程度保护自己的权益。更多相关内容的了解就来我们网站http://www.dybocheng.com咨询了。

When leasing an excavator, you should carefully observe it, test it in person, and never let go of any suspicious parts to protect your rights and interests. For more information, please come to our website http://www.dybocheng.com I consulted.