PROCEDURE
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. Lubricate pump and pump motor according to
manufacturer’s instructions
5. Check operating level in pan and adjust float
valve if necessary - monthly
6. Check water distribution system and spray
pattern - monthly
7. Check drift eliminators - quarterly
8. Check the fan blades for cracks, missing
balancing weights, and vibrations - quarterly
9. Check sheaves and bushings for corrosion.
Scrape and coat with ZRC - annually
10. Lubricate fan shaft bearings - every 1000
hours of operation or every three months
11. Lubricate fan motor bearings - see mfg’s
instructions. Typically for non-sealed bearings,
every 2-3 years
12. Check belt tension and adjust - monthly
13. Inspect and grease sliding motor base -
annually or as needed
14. Check fan screens, inlet louvers, fans and
(dry) cooler coil. Remove any dirt or debris –
monthly
15. Inspect and clean protective finish - annually
- Galvanized: scrape and coat with ZRC
- Stainless: clean and polish with a
stainless steel cleaner.
16. Check water quality for biological contamination.
Clean unit as needed and contact a water
treatment company.
17. Check coil surface for scale and/or corrosion -
every 6 months
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
MAINTENANCE CHECKLIST
* Evaporative Cooling Equipment must be cleaned on a regular basis to prevent the growth of bacteria including Legionella Pneumophila.
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