Pump Repair Checklist

A comprehensive pump repair checklist is essential for identifying failures, ensuring safety, and restoring peak performance . Whether you're dealing with a centrifugal, submersible, or sump pump, following a structured process helps prevent re-failure and extends equipment life. 1. Pre-Repair Safety & Preparation Before opening the pump, ensure the work area is safe and documented. Lockout/Tag-out (LOTO): De-energize all power sources to the motor. Isolation: Close suction and discharge valves to isolate the pump from the system. Drainage: Safely drain all fluid from the pump casing. Identification: Record pump model, serial number, and asset ID for Spare Parts Tracking . 2. Disassembly & Internal Inspection Examine internal components for signs of wear, erosion, or mechanical failure. 11 sites Pump Maintenance Job Checklist | PDF - Scribd REF NO: * Capacity 7.5kw IP 55 MFR GOULD. 11.8 A G02260840XXXPCN. Amps Poles Srl No. * Voltage 460V Terminal Mdl No. GSHS40-200/20... Scribd Free Centrifugal Pump Annual Service Checklist - MapTrack Mar 26, 2026 —

By following John's pump repair checklist, his team was able to efficiently and effectively repair pumps, minimizing downtime and ensuring optimal performance. The checklist served as a valuable tool, helping to: pump repair checklist

| Symptom | Likely Cause | Repair Action | |---------|--------------|----------------| | Low flow | Worn impeller/wear rings | Replace wear rings & impeller | | High vibration | Unbalanced, bent shaft, bad bearings | Straighten/replace shaft, new bearings | | Seal leak | Damaged seal faces or O-rings | Replace mechanical seal | | Overheating bearings | Wrong preload, misalignment, old grease | Realign, replace bearings, set clearance | | Cavitation damage | Pitting on impeller suction side | Increase NPSHa, replace impeller | A comprehensive pump repair checklist is essential for

Before performing any inspection or repair, you must prioritize safety to protect personnel and equipment. Pre-Repair Safety & Preparation Before opening the pump,

A: The top three reasons for premature seal failure are: 1) Dry running, 2) Misalignment between the pump and motor, and 3) Pipe strain (where the piping pushes or pulls on the pump casing).

A: There is no set calendar schedule. Replace them based on condition. If you hear noise, feel vibration, or notice the housing running hotter than usual, it is time to replace them. Generally, bearings should be replaced whenever the pump is opened for a seal change.

This is the diagnostic phase. Keep a clean workspace and organize parts as you remove them.

Before performing any inspection or repair, you must prioritize safety to protect personnel and equipment.

A: The top three reasons for premature seal failure are: 1) Dry running, 2) Misalignment between the pump and motor, and 3) Pipe strain (where the piping pushes or pulls on the pump casing).

This is the diagnostic phase. Keep a clean workspace and organize parts as you remove them.