Problem & answerN-07
Vibratory Tray Not Vibrating or Making a Loud Banging Noise
Also covers: Tray fixing screws loose
Likely causes
- Tray fixing screws loose, so the tray is not clamped to the vibrator drive (main cause)
- Tray not seated correctly after cleaning
- Vibrator amplitude set too high
- Vibrator drive fault
How to fix it
- 1Stop the counter.
- 2Check every tray is seated correctly on its vibrator.
- 3Check and tighten all tray fixing screws (and the vibrator mounting screws) evenly.
- 4Check nothing is touching the tray (guards, product chute, hoses).
- 5Restart and listen: a loud banging or rattling sound means a tray is still loose.
- 6If a tray still does not vibrate with the screws tight, check its vibrator setting on the PLC, then contact Maintenance.
Technical note
A loose tray cannot pass the vibration on to the product, so it stops feeding, and it hammers against its mount with a loud noise. This also damages the vibrator. Always check the fixing screws after cleaning.Photos
It is fixed when
All three trays vibrate smoothly and quietly; product flows evenly.
Stop it coming back
- Tighten and check tray screws every time the trays are refitted after cleaning.
- Report any new noise immediately.
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