DANGER: Do not perform any
service on or near the fans,
motors, and drives, or inside
the unit without first ensuring
that the fans and pumps are
disconnected, locked out, and
tagged out.
NOTES:
1. Recommended service intervals are the minimum for typical installations. Different
environmental conditions may dictate more frequent servicing. Follow all safety and
equipment precautions on pages 2 and 3.
2. When operating in ambient temperatures below freezing, the unit should be inspected
more frequently. Refer to “Cold Weather Operation” on page 28 for more details.
3. Tension on new belts must be readjusted after the first 24 hours of operation and
quarterly, thereafter.
4. Lubricate fan shaft bearings quarterly or every 2,000 hours of operation, whichever
occurs first.
Recommended Maintenance Service
[1]
Inspect and clean as necessary: Start-Up Monthly Quarterly Annually Shutdown
Inspect general condition of the unit
[2]
and check unit for unusual
noise or vibration
Inspect cold and hot water basins
Flush water distribution system/Inspect spray nozzles
Drain basin and piping
Inspect air intake louvers/Combined inlet shields
Check and adjust water level in cold water basin
Check operation of make-up valve
Check and adjust bleed rate
Check optional EASY CONNECT
®
Piping Arrangement
Inspect unit finish
Mechanical equipment system: Start-Up Monthly Quarterly Annually Shutdown
Check belt condition
Adjust belt tension
[3]
Lubricate fan shaft bearings
[4}
[4]
Lubricate motor base adjusting screw
Check and lubricate optional gear drive
See gear drive section on page 13 for detailed instructions and schedule.
Check drive alignment
Check motor voltage and current
Clean fan motor exterior
Check fan motor for proper rotation
Check general condition of the fan
Check and unplug fan drain holes (hollow blade fans)
Check fan for uniform pitch
Check fan for rotation without obstruction
Check and recoat steel shafts with RUST VETO
®
Check optional basin heater and stand alone BAC heater control panel
Check optional vibration cutout switch
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