Table of Contents
Advertisement
Recommended Maintenance Intervals
Inspect and clean as necessary:
Inspect general condition of the unit
noise or vibration
Inspect cold water basin
Flush water distribution system/Inspect spray nozzles
Drain basin and piping
Inspect the CIS combined inlet shields, fill and eliminators
Inspect the CIS hail guards on top of the unit; safe access to be
provided by others
Check and adjust water level in the cold water basin
Check operation of make-up valve
Check and adjust bleed rate
Verify the operation and function of electric immersion heaters and
controls
Inspect if lifting lug access hole covers are installed after unit
installation; refer to the Rigging Manual for more details
Inspect unit finish
Mechanical equipment system:
Check belt condition
Adjust belt tension
[3]
Lubricate fan shaft bearings
Lubricate motor base and adjusting screw
Check drive alignment
Check motor voltage and current
Check motor davit arm is locked in place and away from air stream
Clean fan motor exterior
Check fan motor for proper rotation
Check general condition of the fan
Check fan for uniform pitch
Check fan for rotation without obstruction
Check and recoat steel shafts with RUST VETO
Test vibration cutout switch
DANGER: Rotating equipment will cause
severe personal injury or death to persons who
come in contact. Do not perform any service,
maintenance, or inspection on or near the fans,
motors, and drives, or inside the unit without
first ensuring that the fans and pump motors
are disconnected, locked out, and tagged out.
and check unit for unusual
[2]
[4}
®
NOTES:
1. Recommended service intervals are the minimum for typical installations.
Different environmental conditions may dictate more frequent servicing.
2. When operating in ambient temperatures below freezing, the unit should be
inspected more frequently. Refer to "Cold Weather Operation" on page 29 for
more details.
3. Tension on new belts must be readjusted after the first 24 hours of operation
and quarterly, thereafter.
4. Check at start-up and after each motor service.
[1]
Start-Up
Monthly
Quarterly
Start-Up
Monthly
Quarterly
Annually
Shutdown
Annually
Shutdown
Advertisement
Table of Contents
