工程机械经常是在恶劣的环境中长时间、持续地施工作业，人们除了希望它作业能力强外，还希望它经久耐用、少出故障，一旦有了故障易于修理，并且有良好、配套的技术服务。这就要求在研制工程机械时就要很好地关注其保障性问题，使其具有良好的保障性特性。下面从工程机械保障 Construction machinery is often in a harsh environment for a long time, continuous construction operations, people in addition to its ability to operate outside, but also hope it is durable and less faulty, once the fault is easy to repair, and there are good, supporting technology service. This requires that in the development of construction machinery should pay very good attention to its protection problems, so that it has good protection features. The following protection from the construction machinery