Standard Operating Procedure for Cooling Tower Fan Maintenance
SOP Number: Hotel Engineering SOP – 13
Department: Engineering and Maintenance
Date Issued: 24–Feb-2018
Time to Train: 30 Minutes
Cooling Tower Fan Maintenance Checklist and Procedure:
Carbon removing compound.
Old cleaning clothes.
Cooling Tower Fan Maintenance Activity:
Cooling Tower Fan :
Check the shaft position, in case if the shaft is loose tighten it.
Check the shaft alignment and fix it if required.
Check the key position and any loose key to be replaced or tightened.
Check the fan blade positions, any loose blades to be tightened.
Change or replace any broken fan or fan leaf.
Check the ball bearing and if required do oiling/greasing.
Change the bearing if it is noisy.
Check the oil level of the gear.
Check and verify the gear assembly, any broken teeth to be replaced.
Check the foundation and verify if it is broken/loose.
Motor Should be of minimum 30 HP.
Electrical control should be proper.
Check for any burnt contact, loose electrical connection and overall operation to be checked.
Overload relay should be checked.
Check the operation of the relay, setting and loose electrical connections.
Check the timer operation and time settings.
Check for any loose electrical connection.
Check for any loose & burnt electrical connection.
Check the MCB rating and verify with the recommended Amp.
Check Terminal Plate, Any burnt and broken plate need to be replaced.
Check the motor bearing.
Perform oiling, greasing or change the bearing if required.
Check the internal Resistance Value.
Other points to check:
Check at the full Load motor capacity should be 42 Amp.
Check and verify the overload relay setting should be 22 Amp.
Overload relay range should be between 14Amp to 23Amp.
Check and verify the control fuse rating at 4 Amp.
Check and verify the MCB rating should be at 250 Amp.
Check and verify the timer settings should be set at 10 sec.
Remarks by the Technician: