If the pressure of the hydraulic system of the drilling rig is insufficient, the pressure of the pressure regulating valve should be adjusted to limit the nut or replace the spring; if the cone of the pressure regulating valve is damaged or stuck, the pressure regulating valve sleeve should be removed for repair;
The rig joint heats up and the elastic ring is excessively worn; the reason is that the coaxiality of the rig power machine and the clutch is poor, and the assembly coaxiality needs to be improved;
After the rig oil pump starts, it will not be oiled or the oil quantity is insufficient. First check whether the oil in the fuel tank is insufficient or no oil. If the oil level to the oil level is not eliminated, check whether the filter is blocked. In addition, look at the fuel tank. Whether the vent hole is blocked, or the suction pipe joint loosens the air intake;
The main reason is that the brake hoist brake is slippery. The main reason is that there is oil on the inner surface of the brake belt. It is necessary to clear the inner surface of the brake. If there is no oil in the brake of the drill, check the gap between the brake belt and the brake wheel. If it is too loose, adjust it properly.
The rig clutch slips, the main reason is that the friction plate is excessively worn or broken or the compression spring is aged or broken, and the rig friction plate should be repaired;
The rig oil pump is hot and worn, and the oil pump must be repaired and replaced. The viscosity of the oil is too high or too low. The oil should be used strictly according to the instructions. At the same time, the transmission of the rig oil pump should be checked to improve the assembly accuracy.
If the hydraulic system oil temperature is too high, the oil in the fuel tank is too small or the oil pump is damaged, it is necessary to refuel or repair the oil pump; the working pump should be selected reasonably, and the working pressure should be recommended according to the instructions.