A2f28w2z8 Rotary motor 803000233

The oil discharge amount is not zero at the middle position: when the swash plate inclination angle of the variable axial piston pump is zero, it is called the middle position, and the output flow rate of the pump should be zero at this time.  However, sometimes the median deviates from the midpoint of the adjustment mechanism, and there is still flow output at the midpoint.  The reason is that the position of the controller is deviated, loose or damaged, which requires re-zeroing, tightening or replacement.  This phenomenon can also be caused by insufficient angle maintenance force of the pump and abrasion of the tilt angle trunnion.