Cleaning installation and adjustment of excavator hydraulic system (1)

Preparation for the installation of the hydraulic system:

The Komatsu excavator spare parts hydraulic system is composed of hydraulic components. Each hydraulic component is arranged in the vicinity or partial concentration of each execution part of the equipment. The hydraulic components are connected by pipes, joints and oil pipelines into a complete hydraulic pressure. system.

Before the hydraulic installation is installed, it should be prepared according to the relevant technical information.

I. Preparation of drawing technical data (hydraulic system schematic, piping layout, component list, pipe fittings list, relevant samples)

Second, material preparation

Quality inspection of hydraulic components:

Whether the performance of the Komatsu spare parts used meets the requirements is directly related to the reliability and stability of the work of the system. Therefore, the maintenance personnel must strictly control the quality. (Quality of purchased components: the sand, rust and seal aging in the inventory , manufacturing accuracy is not high, etc.) · What to check:

l, the types and specifications of the various types of hydraulic components used must be consistent with the list of components.

2, check whether the storage period is too long, too long must pay attention to whether the seal is aging or replaced.

3. The adjusting screw, hand wheel and lock nut on each component must be intact.

4. Check whether the quality of the seal attached to the test meets the requirements. If it is abnormal, it is not allowed to be used and must be replaced.

5. There should be no defects in the contact surface and the mounting ring of the plate component.

6. The interface thread of the connecting component is not allowed to be defective.

7. Open the blockage of each port and check if the inside is clean.

8, the valve electromagnet is not allowed to be abnormal, the valve is matched with accessories

Component removal and testing:

Wash and wash

When disassembling the hydraulic excavator spare parts, first familiarize themselves with the structure, function and principle of the components, carefully carry out the disassembly and assembly and assembly. Do not damage or lose parts when removing and disassembling. Do not scrub the parts with fibers such as cotton cloth. Use the material to block the sealing. When assembling, assemble according to the drawing. Do not install the parts and seals correctly. The tightening torque of the fastening screws should be even. Do not hit with a hammer.

Test

The test is to carry out the reliability test on the disassembled hydraulic components or the new components used. It must be tested before the conditional installation.

(Test content is omitted) Each tested component must meet the main specifications specified by the product. If it is not reached, it cannot be loaded into the equipment, and the tested parts are sealed and protected. https://jnjmzm.wixsite.com/sdjygcjx