BAC PCT Series Operation & Maintenance Manual page 6

Recommended Maintenance Service
Inspect and clean as necessary:
Inspect general condition of the unit
for unusual noise or vibration
Inspect cold water basin
Flush water distribution system/Inspect spray nozzles
Drain basin and piping
Inspect combined inlet shields
Check and adjust water level in basin(s)
Check operation of make-up valve
Check and adjust bleed rate
Inspect tower finish
Mechanical equipment system:
Check belt condition
Adjust belt tension
[3}
Lubricate fan shaft bearings
Lubricate motor base adjusting screw
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
Table 1. Recommended Maintenance Services for PCT Units.
WARNING: 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 and
tagged out.
Start-Up
and check unit
[2]
Start-Up
®
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.
3. Tension on new belts must be readjusted after the first 24 hours of
operation and quarterly, thereafter.
Monthly Quarterly Annually
Monthly Quarterly Annually
Shutdown
Shutdown