The recent two times no turn, cleaning electromagnetic valve work for 10 hours or so is not normal, there is no obvious foreign body in the hydraulic oil filter, the boss is angry to replace the hydraulic oil.
There is no obvious foreign body in the hydraulic oil. When the oil filter element is opened, a large amount of oily mud is found at the bottom of the tank. It began to think that it was entering the sand. Because the filter core was too small to wash, a large amount of diesel oil was washed without effect. After testing the oily sludge, it was found that it was salt.
N can not be cleaned and cleaned, and suddenly it is thought that salt can be contained in water. After adding a few barrels of water, the fuel tank is clean. Retest the hydraulic oil, all OK. The boss is very good at touching people at ordinary times, he offends people.
Second days of corrosion of the tools, the boss called the whole car no action, this is cancer and various kinds of washing, change from the pressure relief valve OK, the ticket is earned in the bag, but in the end the excavator saved the living
