Saci Excessive Vibration / Misalignment

Pump housing or nearby pipes vibrate excessively during operation

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Possible Causes

Pump not securely bolted to base, Uneven mounting surface, Air in system causing surging, Worn motor bearings or imbalanced impeller

How to Fix / Troubleshooting

Safety first: Turn off power before tightening mounts or touching the pump.

  • Secure mounting: Ensure the Saci pump base is firmly bolted to a solid, level pad. Tighten loose mounting bolts.
  • Check for air: Prime the pump fully and bleed air from the filter tank to reduce surging.
  • Inspect impeller: If vibration persists, disassemble the wet end and check the impeller for broken vanes or debris causing imbalance.
  • Add vibration pads: Install rubber pads under the pump base to dampen transmitted vibration.

Severe vibration combined with noise may indicate bearing failure; consider motor replacement.

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Repair Difficulty

Easy 2/5

Required Part

Pump Mounting Base
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