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How to systematically diagnose hydraulic system failures? What are the effective methods?

2025-04-28

Systematic hydraulic fault diagnosis should follow the following steps: Phenomenon observation - record all abnormal performance, such as noise changes, slow movement, pressure fluctuations, etc. Parameter measurement - use pressure gauges, flow meters, etc. to detect key point parameters and compare them with normal values. Gradual isolation - narrow the scope of the fault by operating each control valve or isolating in sections. Sensory inspection - judge abnormal vibration, temperature rise or leakage by listening, touching and watching. Oil analysis - detect oil cleanliness, viscosity, moisture and particle contamination, and judge internal wear. Component exchange - replace suspicious components with normal components to verify the judgment. Fault tree analysis - list all potential causes by probability and eliminate them one by one. Common diagnostic tools include: infrared thermometer to detect abnormal temperature rise, ultrasonic detector to locate internal leakage, and oil quality analyzer to evaluate oil status. Diagnosis should be from simple to complex, first check the oil level, filter element and other easy-to-handle items, and then analyze the internal problems of the components in depth.

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Rexroth Axial Piston Motor

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Construction Machinery Piston Motor

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Rexroth Piston Pump

Rexroth Piston Motor

Rexroth Axial Piston Pump

Rexroth Axial Piston Motor

Hydraulic Axial Piston Pump

Construction Machinery Piston Pump

Construction Machinery Piston Motor

Industrial Machinery Piston Pump

Agricultural Axial Piston Motor

Harvesting Machinery Piston Pump

Harvester Axial Piston Motor

Bent Axis Piston Motor

Variable Axial Piston Pump

Fixed Displacement Piston Motor

Hydropower Plant Hydraulic Cylinder

Water Conservancy Hydraulic Cylinder

How to systematically diagnose hydraulic system failures? What are the effective methods?

How to systematically diagnose hydraulic system failures? What are the effective methods?