If you have difficulty in shifting gears during the operation of the milling machine, find out the reasons and eliminate them quickly.
1, check the fork qualification.
2, the pump pressure is in line with the requirements, in the upper end of the shift valve has a pressure gauge pressure gauge bolt loose, if there is no pressure, and pump
The adjusting nut does not have a margin to insert a gasket.
3, check the temperature, temperature drop, resulting in hydraulic oil viscosity, the proposed replacement of hydraulic oil.
4, check the lining wear.