Repair of hydraulic systems of special equipment: the most common problems and solutions
Repair of hydraulic systems of special equipment: the most common problems and solutions
Hydraulic systems are used in many types of special equipment: excavators, loaders, cranes, graders, bulldozers and other machines. Maintenance and repair of the hydraulic system is an indispensable part of the work for special equipment owners, to keep the machines in working condition and their work efficiency.
Understanding the most common problems and possible solutions is key to proper operation.
Let's look at some of the most common possible problems in hydraulic systems:
- Problems with the hydraulic pump
Reasons:Damage to internal pump components may occur due to wear or contamination of the hydraulic fluid.
Decision:Regularly assess the condition of the hydraulic pump. Clean or replace filters. Replace parts or the pump as necessary.
- Insufficient pressure in the hydraulic system, or its decrease
Reasons:Low hydraulic fluid level in the system. Possible problems with the hydraulic pump. Worn sealing elements or connections. Leaks in hoses or seals.
Decision:Check the hydraulic fluid level in the system. Replace damaged parts or seals. Repair the hydraulic pump.
- Noise or vibrations in the hydraulic system
Reasons:Incorrect adjustment of the pump or valves. Air entering the hydraulic system. Wear of some system elements.
Decision:Replace worn parts and elements of the hydraulic system. Check the settings of the pump and valves. Bleed the system to remove air.
- Hydraulic fluid contamination
Reasons:Defects in the filtration system. Ingress of foreign elements, water, dust or other contaminants.
Decision:Thorough inspection of the filtration system. Cleaning and replacing filters. Replacing the hydraulic fluid in the system
- Loss of tightness or deterioration of hydraulic cylinders
Reasons:Partial wear. Corrosion or mechanical damage to the cylinders
Decision:Checking the seals for mechanical damage. Replacing the seals to fully restore tightness
- Fluid overheating in the hydraulic system
Reasons:Contamination of filter elements. Pump operation at high loads. Incorrect adjustment of the cooling system. Insufficient amount of fluid in the system
Decision:Inspect the pump for overheating. Assess for possible contamination and replace filters. Thoroughly inspect the cooling system
- Reduced hydraulic system performance
Reasons:Malfunction in the hydraulic pump. Leaks or contamination of the hydraulic fluid. Low pressure in the system. Malfunction or damage to the valves
Decision:Cleaning or replacing filters. Adjusting or replacing damaged components. Checking the fluid level in the system. Checking the tightness of the connecting elements.
Like any other, the hydraulic system requires regular diagnostics and maintenance. It is important not to ignore the first signs of possible malfunctions of the hydraulic system. Scheduled maintenance will help identify possible problems before they become critical or even completely disable the equipment. It is important to use oils according to the instructions of the special equipment manufacturer. Replace filters and seals in a timely manner.
You can find a wide range of spare parts for special equipment on our website, and choose everything you need for the proper and productive operation of equipment and construction machines.
If you still have questions regarding the operation of the hydraulic system, please contact our specialists in the Contacts section.
Always happy to help!