The deviation of excavator during walking is a common problem during daily construction. In addition to the bumpy and uneven construction conditions, careless drivers can not find out at the first time when abnormal walking occurs. Once we have clearly felt that the excavator is stuck, unresponsive, deviated and other abnormalities during construction, we need to stop for inspection at the first time! Today, let's analyze the reasons for the deviation of Kobelco excavator!
1. Faulty hydraulic pump
In general, excavators use dual pumps, and one pump is usually faulty when running out of direction. The simplest way to judge is to switch the two high-pressure oil outlet pipes of the hydraulic pump. If the original speed is faster, the original speed is slower, which proves that one pump is faulty.
2. Travel motor safety valve
The oil leakage of the safety valve may cause the pressure in the system to be too low and the speed of the travel motor to be insufficient, leading to walking deviation.
Related reading: Method for measuring oil leakage of traveling motor
3. The digging machine deviates to one side
If the spring in the main traveling valve becomes soft or breaks, the oil pressure may be reduced and the traveling deviation may occur. If the travel main valve is damaged, it must be repaired.
Although the excavator traveling is different from that of the engine, many drivers have put aside minor faults such as walking deviation to catch up with the project, and will deal with them after the completion of the project. In fact, this method is very undesirable. A minor exception is a "help" signal sent by the machine and parts to everyone. At this time, we can't make do with hard work, or we will drag a problem that is not very serious into a major failure. It costs less to replace it. Therefore, the time lost due to the shutdown will not be worth the loss!
