I. Lubricating Oil Level Check
1. Oil Level Standard: Confirm the oil level is between the "MIN" and "MAX" marks using the dipstick or sight glass to avoid overfilling or underfilling.
2. Oil Quality Assessment: Check if the oil is clear, free of turbidity, impurities, or emulsification. Use a viscometer if necessary.
3. Oil Temperature Monitoring: Read the temperature sensor data to ensure it is within the range of 30~60℃ to avoid oxidation due to high temperatures or poor fluidity due to low temperatures.
II. Fastener Condition Check
1. Check each fastener individually: Bolts, nuts, and other fasteners must be tight to prevent them from falling off due to high-frequency vibration.
2. Regular Maintenance: Before operation, confirm that all connections are tight to prevent abnormal equipment vibration caused by loosening.
III. Hydraulic Pipeline Leakage Check
1. Visual Inspection: Observe pipe joints, seals, cylinders, etc., for oil stains or drips.
2. Pressure Test: Determine if the oil pump is functioning properly by checking if the pressure gauge reading is stable. Leaks will cause pressure fluctuations.
IV. Judgment of Abnormal Noises and Temperature Increases
1. Abnormal Sound: Normal operation involves uniform noise. Sharp "clicking" sounds or periodic abnormal noises may indicate insufficient lubrication or gear surface friction.
Vibration in the hydraulic system may indicate valve core sticking or unstable pressure.
2. Abnormal Temperature: Touch the pump housing or hydraulic oil. If it feels "very hot" (above 80℃) or "gradually warming" (around 40℃), it may be due to frictional heating caused by poor lubrication.
The gearbox housing temperature should be stable between 40~80℃. A sudden increase to above 90℃ requires investigation of lubrication issues.
V. Comprehensive Judgment and Handling
1. Normal State: Oil quantity, oil quality, and oil temperature are within standards; there are no leaks; the sound is stable; and the temperature is within a reasonable range.
2. Abnormal Handling: If any indicator fails to meet standards, repair or replacement is required, such as tightening loose parts, replenishing or replacing lubricating oil, or repairing leaking pipelines.
