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Inspection and Maintenance Schedule
Fan
Motor
Drive Shaft and Guards
Geareducer
Drift Eliminators
Fill
Cold Water Basin
Hot Water System
Water Make-up System
Suction Screen
Control Valves or Gates
Structural Members
Casing and Louvers
Fan Cylinder
Stairs, Ladders, Walkway, Doors, Handrails
Davits, Derricks, Hoists
General Recommendations
More frequent inspection and maintenance may be desirable.
1. Inspect for clogging
M
M
W
W
2. Check for unusual noise or vibration
D
D
D
D
3. Inspect keys, keyways, and set screws
S
S
S
S
4. Make sure vents are open
S
5. Lubricate (grease)
R
S
6. Check oil seals
M
7. Check operating oil level
D
8. Check static oil level
M
9. Check oil for water and sludge
M
10. Change oil
S
11. Check fan blade tip clearance
S
12. Check water level
D
D
13. Check for leakage
W
S
S
S
14. Inspect general condition
S
S
S
S
Y
S
Y
S
Y
S
S
S
Y
S
S
S
15. Tighten loose bolts
S
S
S
S
Y
R
S
16. Clean
R
R
R
R
R
R
S
R
R
R
R
17. Repaint
R
R
R
R
18. Rebalance
R
R
19. Completely open and close
S
20. Inspect/repair for safe use
Y
Y
Y
21. Inspect and repair before each use
R
D—Daily; W—Weekly; M—Monthly; Q—Quarterly; S—Semi-annually; Y—Yearly; R—As Required