5
Operation and Maintenance Instructions
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. 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. Lubricate fan shaft bearings* – every 1000
hours of operation or every three months
9. Check belt tension and adjust – monthly
10. Sliding motor base – Inspect and grease –
annually or as needed
11. Check fan screens, inlet louvers and fans.
Remove any dirt or debris – monthly
12. Inspect and clean protective finish – annually
- Galvanized: scrape and coat with ZRC
- Stainless: clean and polish with a
stainless steel cleaner.
13. Check water quality for biological contamination.
Clean unit as needed and contact a water
treatment company for recommended water
treatment program** – regularly
1. Gear Reducer – Check oil level with unit
stopped – 24 hours after start-up & monthly
2. Gear Reducer/Piping – Do visual inspection
for oil leaks, auditory inspection for unusual
noises and vibrations – monthly
3. Gear Reducer - Replace oil – semi-annually
4. Oil Pump – Do visual inspection for leaks and
proper wiring – monthly
5. Gear Reducer/Coupling – Check alignment of
the system – 24 hours after start-up & monthly
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
OPTIONAL ACCESSORIES:
MAINTENANCE
CHECKLIST
* 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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