What aspects should be considered during the inspection of mechanical pumps?

1. Check whether the indications of the pressure and current meters are normal； 2. Listen for any abnormal sounds, such as metal friction ； 3. Feel the temperature of the bearing bush to check if it is higher than the normal value ； 4. Check the vibration level of the pump by hand or using a vibration meter ； 5. Check whether there is a lack of oil in the tank, inspect the condition of the oil seals, and add lubricant as needed to maintain an appropriate oil level ； 6. Check whether the sealing water and cooling water are functioning properly ； 7. Check the operation of the shaft seal and make necessary adjustments if required.

Pump body: Good condition; no obvious wear or corrosion on the inner wall. Pump body: In good condition; no abnormal noises during operation. Clearance between the seal ring and the pump body: 1.0–1.5 mm. Pump cover: In good condition; no obvious wear or corrosion. Seal ring of the impeller: Clearance ≤ 1.5 mm. Impeller: In good condition; no cavitation-induced perforations. Impeller: Flow channels are unobstructed. Mechanical seal: Good sealing performance; no leaks. Shaft sleeve: In good condition; no corrosion or wear. Pump shaft: Axial movement is 0.15–0.25 mm. Operating temperature of the front bearing: 65°C. Noise level of the front bearing: Normal; no abnormal noises. Vibration level of the front bearing: ≤ 5 mm/s. Operating temperature of the rear bearing: 65°C. Noise level of the rear bearing: Normal; no abnormal noises. Vibration level of the rear bearing: ≤ 5 mm/s. Coupling: Good coaxiality; vertical and horizontal radial deviations are ±0.10 mm, with a clearance of 5–8 mm between the two couplings. Pivot pins of the coupling: In good condition; no obvious wear or fractures. Elastic rubber rings of the coupling: In good condition; no detachment, cracks, or damage. Tightness of the coupling bolts: Good; no looseness. Tightness of the foundation bolts: Good; no looseness. Cooling water pipes: Working properly; good cooling effect, no leaks or blockages. Pump body: No obvious wear. Clearance between the seal ring and the pump body: 1.0–1.5 mm. Pump cover: No obvious wear. Wear of the seal ring: ≤ 1.5 mm. Impeller: No cavitation-induced perforations. Compression amount of the seal spring: 5–7 mm. Shaft sleeve: No corrosion or wear. Shaft: Axial movement is 0.15–0.25 mm. Coaxiality of the coupling: Vertical and horizontal radial deviations are ±0.10 mm, with a clearance of 5–8 mm between the half-couplings. Fit between the coupling and the shaft: ±0.01 mm. Elastic rubber rings: No detachment, cracks, or damage. Cooling system: Good cooling effect; unobstructed flow

Reply to 3# zxfeng: Those are the precautions for inspections. Are the data you provided the details of the inspection tasks?