Through investigation, there are some problems encountered in the maintenance of mini excavators on the market, such as the mini excavator losing control. Now let's take a look at the causes of the out-of-control situation.
1. The inertial oil bath air filter oil contains too much oil. It is sucked into the cylinder and extinguished. This is equivalent to increasing the fuel supply and also accelerating, causing the speed.
2. Due to misalignment or fuel blockage, the plunger of the fuel radiation pump may rotate and the speed adjustment frame may be lost. In particular, the multi-cylinder oil pump is in a load-limited state and the fuel supply cannot be changed to trigger the operation.
3. The single-cylinder diesel engine single injection pump governor transmission sleeve is blocked, resulting in poor speed regulation.
4. The oil inlet hole and the oil return hole in the injection pump plunger sleeve are on the same plane. If the piston sleeve screw is too long and blocks the oil return hole, the oil return is poor and the oil supply will be supplied.
5. Because the fuel pump regulator is blocked in the oil supply position or the rack and governor rod are loose and out of control.
If the small excavator is out of control, it should be stopped immediately, which may cause serious consequences. Learn to make appropriate adjustments to reduce excavator damage
