Proper servicing of a drum pump ensures longevity, safety, and efficient operation. Below are key steps for routine maintenance, troubleshooting, and repair of drum pumps (manual, electric, or pneumatic).
After Each Use:
Flush the pump with a compatible solvent (e.g., water, alcohol, or a mild cleaner).
Inspect the tube, seals, and rotor for wear or cracks.
Monthly (for frequent use):
Check O-rings, gaskets, and bearings for degradation.
Lubricate moving parts (if required by the manufacturer).
Replace tubes when they show:
Cracks, swelling, or stiffness (indicates chemical degradation).
Reduced flow rate (due to wear from rollers or impellers).
Replace O-rings & gaskets if leaks occur.
Check motor brushes (if applicable) and replace if worn.
Inspect electrical cables/pneumatic lines for damage.
Verify voltage/air pressure matches pump specs.
| Issue | Possible Cause | Solution |
|---|---|---|
| Pump won’t prime | Worn tube, clogged inlet, air leak | Replace tube, clean filter, check seals |
| Leaking fluid | Damaged O-rings, cracked housing | Replace seals, tighten fittings |
| Reduced flow rate | Worn tube, clogged filter, motor issue | Clean/replace tube, check power |
| Unusual noise/vibration | Misaligned rotor, bearing failure | Inspect bearings, realign parts |
| Motor not running | Electrical fault, blown fuse, seized rotor | Check power supply, inspect motor |
Service if:
Only minor parts (tubes, seals, O-rings) are worn.
The motor/pneumatic system still works well.
Replace if:
The housing is cracked or corroded.
The motor/gearbox is burnt out (costly to repair).
The pump is obsolete (hard to find parts).
Manufacturer Support – Many brands (Lutz, Finish Thompson, GoatThroat) offer repair services.
Industrial Pump Repair Shops – Specialized in fluid handling equipment.
DIY Kits – Some suppliers sell rebuild kits (seals, tubes, gaskets).