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2700 Inspection and Maintenance
AbstractThis section briefly discusses cooling tower inspections and maintenance and includes a Cooling Tower Institute (CTI) checklist for inspection and a list of matenance activities for key tower components.
Contents Page
2710 Inspection 2700-2
2720 Maintenance 2700-2
Chevron Corporation 2700-1 December 1989
2700 Inspection and Maintenance Heat Exchanger and Cooling Tower Manual
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2710 InspectionCooling tower inspections are usually carried out by experienced cooling tower manufacturers or specialists. See Section 2150 for a list of possible contacts.
Included in this Section is a copy of Cooling Tower Institute’s Cooling Tower Manual, Chapter 13, “Inspection of Cooling Towers.” It includes detailed check-lists for inspection of all of the cooling tower components.
2720 MaintenanceCooling tower maintenance is normally carried out by experienced cooling towecontractors. See Section 2150 for a list of possible contacts.
Figure 2700-1 lists the common maintenance activities which should be schedufor cooling towers.
Fig. 2700-1 Preventive Maintenance Schedule for Key Tower Components
Component Weekly MonthlySeasonal Shutdown
Seasonal Startup
Fan motor — Check mounting bolts
Clean and cover Lubricate, if required; tighten mounting bolts
Speed reducer Check oil level, visual inspection
Check oil level, check mounting bolts
Overfill with oil, clean and cover
Refill with new oil and tighten mounting bolts
Fan wheel Visual inspection, clean foreign matter
Check bolts, check “set screws”
Clean and cover Clean and paint hub, check blade pitch
Drive shaft Visual inspection Check shaft align-ment
Clean and cover Realign
Distributionsystem
Remove foreign matter
Remove foreign matter
Drain and clean Inspect and clean
Cold-water basin Remove foreign matter
Remove foreign matter
Drain and clean Inspect and clean
Sump and screen Remove foreign matter
Remove foreign matter
Drain line and shut off
Inspect and clean
Overflow Visual check Visual check — Tighten bolts
Connections Visual check Tighten bolts — —
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