The kingway excavator gear has been engaged, but the loader is running weakly and cannot even move. The reasons are: (1) severe wear of the friction plate and excessive clearance; (2) The automatic reverse valve of the excavator kingway clutch is not tightly sealed, resulting in a decrease in pressure; (3) The shift control valve pipeline is blocked; (4) The sunward sw25uf shut-off valve cannot return to its original position;When mini excavator wheels shifting gears, it is not possible to smoothly enter the gear. The mini excavator gasoline reasons are: (1) the Hightop Group Excavator pressure of the pressure valve is too low; (2) Poor operation and sealing of hydraulic pump; (3) Hydraulic pipeline blockage; (4) Damage or leakage of clutch sealing ring; (5) The gear shift valve stem is not in place.
2. When the gearbox is shifting, the liugong mini excavator gear cannot be disengaged. The reasons are: (1) piston ring swelling and death; (2) The clutch friction plate is burnt out; (3) Clutch return spring failure or damage; (4) The return oil pipeline is blocked. www.haiqinmachinery.com