How To Clean The Custom Hydraulic System?

How to clean the custom hydraulic system?

The disassembly, cleaning and testing of hydraulic components. The hydraulic components are prone to rusting and contamination during transportation or storage. Even new hydraulic components cannot completely eliminate all residual dirt. Uncontaminated hydraulic components should not be disassembled, but they need to undergo functional testing and quality inspection. After the hydraulic system is cleaned, the installation of the hydraulic system is completed. Try to move the system before confirming the pipelines. Perform a cycle of cleaning. The normal operation of the hydraulic system requires extremely strict cleanliness standards. Ensure that the hydraulic pipelines, pipes, valve groups and tanks are clean and free of dirt. Also ensure that the cleanliness of the hydraulic oil meets the requirements.

Hydraulic system debugging: After confirming that it meets the purification standards, join the charter of the medium-sized tank association. The oil medium must be filtered, and the precision of the filter should meet the requirements. Check whether all the hydraulic system installations are correct and can be debugged. Idle operation: Loosen the pressure adjustment knob of the overflow valve, the electromagnetic valve has high power, then start the motor, the motor runs, check whether the motor rotation is accurate. If it is accurate and continuous, then connect the power supply, the oil in the oil pump discharges through the overflow valve back to the oil tank.

Pressure adjustment: Adjust the pressure regulating knob of the relief valve to gradually increase the pressure. Once the pressure reaches the set value, maintain it for a while. Check if there is any leakage in all hydraulic systems. If leakage is found, it should be dealt with promptly.

Debugging: Start the ignition motor pump. Press the left or right button to adjust the rotational speed of the transformer cylinder to the required level. Debugging note: Do not adjust the system for the labor pressure of the moving parts of the actuator.

What aspects should be paid attention to when repairing the hydraulic system?

After the repair of the hydraulic system, the installation of the gear pump. The focus is on the following matters: the method of removing burrs from each part using deburring tools. The cutting edges of the gears in the hydraulic system are dull due to natural oilstones, but they must not touch the rounded corners. After demagnetization, the parts are ground on the flat surface. The hydraulic system should be carefully cleaned with kerosene for all components before they can be put into use.

When the hydraulic system is equipped and the axial spacing of the pipes is measured, the axial spacing of the gear pump is 5 = the thickness of the pump body is 10 - the gear width L1. Usually, the pipe is 0.02 - 0.03 mm in diameter, and the relevant dimensions and accuracy are measured simultaneously. When the rest of the pump is installed with the hydraulic system, some gear pumps have a positioning pin hole. Gear pumps without a positioning hole are advanced diagonally from the operator's side and the screw is tightened, and the pump shaft is rotated. There are no multiple phenomena, and multiple installation screws are fully tightened.

In the positioning hole pump (such as type CB B) and the pin hole processing process of the hydraulic system, the key point to use is that without a positioning reference, therefore, finally the pin holes are drilled and reamed, and two dozen pins are made. Regarding the upward target part, be careful not to mistake it for an incorrect target; it is to confirm the forward-reverse pump.

The issue of using a paper pad to solve the problem between the pump body and the pump cover was rejected. There is at least a 0.06 to 0.1 millimeter thick paper layer, which will spread to the axial clearance, cause internal leakage, and prevent the gear pump from being filled with oil, etc. Under these conditions, a bench test can be conducted according to the standard JB/t7041-93, and then the gear can be used in the custom hydraulic system of the main machine.