6
MAINTENANCE
CHECKLIST
PROCEDURE
JAN FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
1. Clean pan strainer – monthly or as needed
2. Clean and flush pan** – quarterly or as needed
3. Check bleed-off valve to make sure it is operative
– monthly
4. Check operating level in pan and adjust float
valve if necessary – monthly
5. Check water distribution system and spray
pattern – monthly
6. Check drift eliminators – quarterly
7. Check the fan blades for cracks, missing
balancing weights, and vibrations - quarterly
8. Check sheaves and bushings for corrosion.
Scrape and coat with ZRC - annually
9. Lubricate fan shaft bearings* - every 1000 hours
of operation or every three months
10. Lubricate fan motor bearings – see mfg’s
instructions. Typically for non-sealed bearings,
every 2-3 years
11. Check belt tension and adjust – monthly
12. Sliding motor base – Inspect and grease –
annually or as needed
13. Check fan screens, inlet louvers and fans.
Remove any dirt or debris - monthly
14. Inspect and clean protective finish – annually
- Galvanized: scrape and coat with ZRC
- Stainless: clean and polish with a stainless
steel cleaner.
15. Check water quality for biological contamination.
Clean unit as needed and contact a water
treatment company for recommended water
treatment program** – regularly
* See maintenance manual for start-up instructions and lubrication recommendations
** Cooling Towers must be cleaned on a regular basis to prevent the growth of bacteria including Legionella Pneumophila
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Страница 40: ... 2012 EVAPCO Europe Bulletin 113 E 1216 ...