why excavator has a slowly movement?

　　During the normal operation period, as long as the excavator excavate movement had to finished with the slowing speed or the rotary movement is lack of power force, professional famous brands komatsu bucket teeth pins production and design factory said both of them are indicate there are something wrong with the excavator machine.

　　Professional famous brands komatsu bucket teeth pins design and manufacturing factory indicate that as long as the excavator shuttle valve has the leakage problem, the rotary direction changing valve core would can’t move to the needed position within complete way, so the entirety excavator machine would lack of rotary power force but lead to the slowly movement phenomenon at the same time.

　　If the another functions and uses of excavator machine is as same as before, professional famous brands komatsu bucket teeth pins production and design manufacturer said it maybe some dirt substances has block the rotary direction changing valve core part yet.