• OBJECTIVE                                              
  • To lay down a procedure for Maintenance of Cooling Tower
  • This SOP is applicable to Cooling Tower.
  • RESPONSIBILITY            
  • Technical Supervisor / Engineer
  • ACCOUNTABILITY                    
  • Sr.Executive / Manager
  • Daily Maintenance
  • Check for any vibration and abnormal noise from the Total unit.
  • Check and ensure free rotation of Water Distributor.
  • Blow down the water from the basin for removing high salt concentrated water.
  • Treat the water with chemical of 2710 (1000 ml / 315 Tr & 500 ml / 125Tr)
  • Check and ensure hardness & PH values of water in the sump within limits.(hardness is below 50 and ph 7-8)
  • Check and ensure the motor guard is in position.
  • Put a Tick mark (Ö) in Daily Check Sheet after completion of each activity. If it is not O.K put a cross (X) in Daily Check Sheet indicating the reason in remarks column.
  • Immediately inform to the concern superior if it is not O.K (X) and take necessary corrective action as per the advice.
  • Any such deviations should be maintained in the Machine History Cord along with necessary corrective action and its complaints there of.
  • Weekly Maintenance
  • Ensure no cracks on Hub & blades.
  • Check and ensure the 315 Tr motor load should be 12-15 Amps & 125 Tr motor load should be 6-8 Amps
  • Check and ensure float valve function.
  • Ensure the earthing connected to the motor by checking with earth megger.
  • Ensure smooth and snag operation of all valves.
  • Treat the water with chemical of 606 (1000 ml / 315 Tr & 250 ml / 125Tr)
  • Put a Tick mark (Ö) in Weekly Check Sheet .
  • Monthly Maintenance
  • Check and clean the distribution pipe.
  • Tighten the motor base bolts & fan blade bolts.
  • Clean the motor externally with Coracloth.
  • Clean the air inlet mesh.
  • Treat the water with chemical of 2002 (1000 ml / 315 Tr & 250 ml / 125Tr)
  • Check and ensure no water spillage from tower & basin to outside.
  • Clean the control panel with air blowers.
  • Ensure the function of temperature controller with respect to temperature setting (Range from 22º – 32ºC.)
  • Put a Tick mark (Ö) in Monthly Check Sheet.
  • Half Yearly Maintenance
  • Regrease the motor bearings.
  • Clean the water basin with wire brush & remove scale.
  • Check and ensure no leaks from water basin.
  • Inspect general condition of structural members..
  • Put a Tick mark (Ö) in Half Yearly Check Sheet.
  • Yearly Maintenance
  • Check the condition of packing fills, distributor and eliminator, replace if any thing got damaged.
  • Overhaul the motor.
  • Check the RPM of the motor with respect to name plate specifications. (1440)
  • Calibrate the Inlet & outlet pressure & temperature gauges.
  • Put a Tick mark (Ö) in Yearly Check Sheet.
  • Forms and Records (Annexures)
  • Not Applicable
  • Distribution
  • Master copy –  Quality Assurance
  • Controlled copies- Quality Assurance, Production, Quality Control
  • History
    Date Revision Number Reason for Revision


    00 New SOP




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