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Production base: 2 xishan road, yongcheng economic and technological development zone, henan province
The hydraulic system of the grab loader is one of its core components, and its maintenance method is crucial. Here are some key maintenance steps and precautions:
One, Preparation Before Maintenance
Ensure Safety: Before maintenance of the hydraulic system, ensure that the grab machine has stopped and the engine has been turned off. At the same time, operate the control lever several times to release the residual pressure in the system.
Cooling System: Wait for the hydraulic oil and lubricating oil to cool before maintenance to prevent hot parts or oil from suddenly flying out or spraying out and causing injury.

II. Cleaning and Inspection of Hydraulic System
Clean Surfaces: Use cleaning solutions to wash hoses, tubes, and the interior of the oil tank, and wipe them clean before connecting them to maintain cleanliness of sealing surfaces.
Check for Leaks: Regularly inspect the hydraulic system for any leaks and promptly address them. Leaks can cause equipment malfunctions and even lead to safety incidents.
Replace Seals: When disassembling hydraulic components, ensure that you use seals that are undamaged and free of defects, and avoid damaging the mating surfaces.
III. Changing and Replenishing Hydraulic Oil
Use the Same Oil Brand: When adding hydraulic oil, it must be the same oil brand. Do not mix other oil brands. If you need to replace the recommended hydraulic oil with another brand, make sure to replace all the oil in the system.
Avoid Starting Without Oil: Do not start the engine without oil in the hydraulic oil tank, otherwise, it may damage the hydraulic system.
IV. Inspection of Fasteners and Electrical Components
Inspect Fasteners: Regularly inspect the fasteners of the hydraulic system to ensure that all connections are secure and prevent damage to the equipment due to looseness.
Inspect Electrical Components: Ensure that electrical components are functioning properly to prevent equipment shutdown due to electrical malfunctions.
Five. Other Precautions
Avoid slope maintenance: Avoid checking and maintaining the walking and rotating motor circuits on slopes, as they will be subjected to gravity pressure.
Maintain seal: Pay attention to maintaining the seal when connecting hydraulic soft tubes and pipes, and avoid damaging the sealing surface.
Avoid arbitrary adjustment: The safety valves and overload valves of the hydraulic system are adjusted at the factory and cannot be arbitrarily changed to avoid accidents.
In conclusion, regular maintenance and servicing of the hydraulic system of the grab crane can ensure its normal operation, prolong the service life of the equipment, and improve work efficiency. At the same time, it can also reduce the failure rate and reduce maintenance costs.






