Excavators are not new to Jinan and even the whole country. After all, Lanxiang's advertisement is too unpopular. Because of the limitations of the excavator itself, it needs to cooperate with the use of the telescopic arm of the excavator in many scenarios to speed up the construction period, but we still need to pay attention to many operating standards when operating.

1.装置挖掘机伸缩臂之后，挖掘机的操控难度会增加，所以在作业和行走的时分，要确保场地平整坚实，假如是松软空中则应垫以枕木或垫板，沼泽地域则应先作路基处置，或改换湿地专用履带板。开端作业时，除松懈土壤外，其开挖高度和深度上限均不能超越机械自身性能规则。

1. After installing the telescopic arm of excavator, the operation difficulty of excavator will increase. Therefore, during the operation and walking, it is necessary to ensure that the site is smooth and solid. If it is soft in the air, it should be padded with sleepers or mattresses. In the marsh area, roadbed should be disposed of first, or the special Caterpillar board for wetland should be replaced. When starting operation, the upper limit of excavation height and depth can not exceed the mechanical performance rules except for loose soil.

2.由于挖掘机伸缩臂比规范臂更长更重，动作惯性也更大，因而，在操作时要比规范臂的动作轻，各支配过程应平稳，动作不宜过快、过猛，不宜紧急制动。此外，为了确保安 全，装置挖掘机伸缩臂之后，严禁改换运用超出规范容量的大挖斗，而且平整作业场地时，不得用铲斗停止横扫或用铲斗对空中停止夯实。

2. Because the telescopic arm of excavator is longer and heavier than the standard arm, and its action inertia is larger, the movement of the telescopic arm is lighter than that of the standard arm, the control process should be smooth, the action should not be too fast or too violent, and the emergency brake should not be applied. In addition, in order to ensure safety, it is strictly forbidden to change the large excavator bucket beyond the standard capacity after the expansion arm of the excavator is installed, and when leveling the work site, it is forbidden to stop sweeping with the bucket or tamping the air with the bucket.

3.挖掘机伸缩臂在作业前要检查的项目应契合下列请求：照明、信号及报警安装等安装完好无缺；燃油、光滑油、液压油契合规则；各铰接局部衔接牢靠；液压系统无泄露现象。作业时，挖掘机伸缩臂应尽量坚持程度位置，将行走机构制动住，并将履带揳紧，哆嗦升降不得过猛，降落时，不得碰撞车架或履带。

3. The items to be inspected before the excavator telescopic boom is operated should meet the following requirements: lighting, signal and alarm installation are intact; fuel, smooth oil and hydraulic oil fit rules; local articulation is reliable; hydraulic system is not leaked. When working, the telescopic arm of excavator should adhere to the degree position as far as possible, brake the walking mechanism, tighten the track, shiver up and down too fast, and collide with the frame or track when landing.

以上就是挖掘机伸缩臂操作是所需求关注的几个点，停止标准作业既能加快工作效率，又能防止不测发作可为是一箭双雕，以上几点内容我们要谨记！

Above all, the telescopic arm operation of excavator is a few points that need attention. Stopping the standard operation can not only speed up work efficiency, but also prevent unexpected attacks. We should bear in mind the above points!