three different reasons lead to slowly excavate movement

　　Professional famous brands komatsu bucket teeth pins production supplier said the first reason is due to the stop position of excavator rotary operation handle shaft is exist in middle position, so the rotary brake would lose its original effects and function, but lead to the slowly excavate movement and weaken excavate power force.

　　Professional famous brands komatsu bucket teeth pins design and production manufacturer said the second reason is because of the excavator rotary brake device is not fully loosen, so the rotary movement would be finished with the weakness way and the movement speed is slower than before too.

　　Professional famous brands komatsu bucket teeth pins production supplier said the last reason is because of the excavator rotary circuit over flow valve is lost of its original functions or the single way valve has oil leakage problem, and professional famous brands komatsu bucket teeth pins production and design manufacturer said the solve method is replace a new over flow valve or single way valve in time.