Pumps (Centrifugal, Diaphragm) Maintenance Checklist for Fluid Handling

This checklist provides a detailed procedure for the maintenance of centrifugal and diaphragm pumps in fluid handling settings for ensuring reliable functioning and longevity of these industrial equipments. It covers all relevant aspects such as impeller and diaphragm inspection, seal or packing condition check, bearing lubrication, alignment verification, vibration analysis, suction and discharge check, control system verification, and performance testing.

Equipment identification: ▢ ID/Number ______________ ▢ Hours/Mileage ______________

Operator Name: ______________ Date: ______________

1. Impeller/Diaphragm Inspection:

   • ▢ Check the impeller/diaphragm for signs of wear or damage
   • ▢ Verify the impeller/diaphragm is correctly mounted and secure

2. Seal/Packing Condition Check:

   • ▢ Inspect seals/packing for leaks or damage
   • ▢ Check for appropriate seal/packing tightness

3. Bearing Lubrication Assessment:

   • ▢ Assess the quality and level of lubrication in bearings
   • ▢ Replenish bearing lubricant if necessary

4. Alignment Verification:

   • ▢ Inspect the alignment of pump and drive
   • ▢ Correct any misalignment found

5. Vibration Analysis:

   • ▢ Perform a vibration measurement of pump
   • ▢ Measure and note any abnormal vibrations

6. Suction/ Discharge Check:

   • ▢ Check the suction and discharge valves for proper operation
   • ▢ Inspect piping for damage or leaks

7. Control System Verification:

   • ▢ Test the control system for correct operation
   • ▢ Rectify any control system issues if found

8. Performance Testing:

   • ▢ Conduct a performance test of pump
   • ▢ Record and evaluate the test results

Defects: ________________________________________________________________________________________________________________________________________________________________________

Operator Acknowledgement: ______________ Signature: ______________

Note: Always follow safety guidelines and manufacturer's instructions during all pump maintenance processes.