1. Oil Inspection
Oil Level and Quality: Check the hydraulic oil level using a level gauge, ensuring the oil level is slightly above the middle of the scale. Also observe the oil color; it should normally be transparent or pale yellow. If it turns black, becomes cloudy, or contains metal shavings, replace it immediately.
Oil Temperature: Check if the hydraulic oil temperature is within the allowable range to prevent overheating and oil deterioration.
2. Pressure and Leakage Detection
Pressure Gauge Reading: After starting the equipment, observe if the pressure gauge reading is within the normal range (e.g., 11-14 MPa for high-pressure oil on a flat road). If the pressure is abnormal, check components such as the relief valve and solenoid valve.
Piping and Sealing: Check for leaks or drips in the hydraulic pipes, valve plate joints, and hydraulic cylinder end caps.
3. Critical Component Status
Hydraulic Pump and Motor: Listen for abnormal operating noise and check the hydraulic pump and motor for knocking sounds or vibrations.
4. Solenoid Valves and Relief Valves: Confirm that the solenoid valve is energized and that the relief valve spool is not stuck (can be tested manually by tackling).
Pressure Pump and Variable Pump: Check that the pressure lines are unobstructed and that the variable pump has sufficient flow.
5. System Operation Observation:
Speed and Vibration: Observe whether the actuator (such as the vibrating wheel) moves smoothly and whether there is any abnormal vibration or creeping.
Product Processing Quality: Indirectly judges the stability of the hydraulic system by the flatness of the compacted road surface.
6. Daily Maintenance Points:
Regular Cleaning: Clean the exterior of the hydraulic system to prevent debris accumulation from affecting heat dissipation.
Tightening and Lubrication: Regularly tighten connections and lubricate moving parts.
