How to clean the iron powder left in the excavator

[BONOVO]

The welding point of the excavator's middle arm cylinder leaked oil. After welding, the excavator's middle arm got stuck after about an hour of work. After inspection, it was found that there was a lot of iron powder in the excavator engine cylinder. How to remove these iron powders?

There are iron powders inside the excavator, including iron powders in the excavator hydraulic oil, in the hydraulic oil tank, in the oil circuit, radiator, pump, motor, cylinder, etc.

Methods for removing iron powder inside the excavator:

Method 1: Filter the hydraulic oil and put a magnet in the hydraulic oil tank to absorb the iron powder;

Method 2: Clean all hydraulic oil circuits, clean the control valve, replace the hydraulic filter, etc.;

Method 3: Drain the hydraulic oil, use a magnet to absorb the iron powder in the hydraulic oil tank, then add diesel, work for about ten minutes, drain the diesel, and clean all the main control valve cores;

Method 4: In addition to the above three methods, there is also a way to change the hydraulic oil several times to remove the iron powder in the hydraulic oil pipe of the entire excavator;

Method 5: First clean the return oil part of the hydraulic oil tank, then clean the middle arm oil tank, then clean the pipeline that controls the middle arm oil tank, then the main control valve controls the valve group of the middle arm, and then drain the hydraulic oil, put it in a barrel and wait for it to settle before continuing to use it.

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