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2009 Nalco Company
6-11
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3D TRASAR
5500 - Installation & Operation Manual
6.8
Pellet Feeder Cleaning
For trouble free operation the pellet feeder must:
• Be kept clean and dry
• Be kept ¼ full and NEVER allowed to empty
Periodically check the inside of the pellet feeder. If excessively dirty it will require a cleaning. If kept
dry, cleaning is rarely required.
To clean the pellet feeder:
1. Manually remove the pellets from the feeder and store them temporarily in a clean DRY
location.
2. Use a soft cloth to wipe clean any debris from the vessel sides, bottom to top.
3. Do not use a damp rag or introduce any moisture to the vessel.
When clean refill with the old pellets and manually feed a pellet to test for correct operation.
Refer to the bio-reporter MSDS sheet for safe handling procedures and required safety
gear.
Contact with any moisture will cause the pellets to impart an intense blue coloring. This is
water-soluble and can be washed away with water.
6.9
Pellet Feeder Maintenance
The bio-reporter pellet feeder may require periodic maintenance. How often maintenance is required
is dependent upon pellet feed rates and the pellet feeder working environment. T
ypically the cleaning
and adjustments listed below will need to be performed once a year. Larger systems that feed more
pellets may require maintenance more frequently.
Pellet Feeder maintenance
SHOULD ONLY BE DONE IF NEEDED
.
!
!
Clean Exit Tube
- Section 6.9.1
Indicated by alarm or visual inspection.
Tighten Valve Seat
- Section 6.9.2
Indicated by alarm or excessive weeping of
water from pellet feeder.
Replace Pellet Shield
- Section 6.9.3
Indicated by alarm, pellet feeder jamming, or
visual inspection.
!
