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Maintenance Requirements
• Rotate all fans and motors shafts monthly by hand. Hand-turning will ensure that the
shafts and bearings rotate freely and will redistribute grease within the bearings.
• Inspect the cold water basin monthly to ensure that the drain is open and remove any
leaves or debris that may have accumulated in the cold water basin.
• Inspect axial fans prior to start-up and at least once annually to ensure that the blades
are tight and that there is no corrosion or damage. Do not energize the fans if there is
damage or significant corrosion of fan components. Loose fan blades could result in
fan failure and possible injury or equipment damage.
• At least quarterly, inspect the rust preventative coating on external machined surfaces
of the drive system, including motor shafts, fan shafts, and bushings. If necessary
re-coat the surfaces with RUST VETO
grooves, belts or fan blades
Start-Up Preparation After Prolonged Storage
Start-up procedures after long periods of storage are just as important as pre-shutdown
procedures.
• Fan and pump motors should be thoroughly inspected and cleaned to restore them to
pre-storage condition.
• Inspect axial fan(s) prior to start-up to ensure that the blades are tight and that there
is no corrosion or damage. Do not energize the fan(s) if there is damage or significant
corrosion of fan components. Loose fan blades could result in fan failure and possible
injury or equipment damage.
• Reinstall all fan belts, motors, and drain plugs (as applicable), and remove all
protective coverings.
• For units stored prior to installation, conduct rigging procedures as directed in the
unit's Rigging and Assembly Instructions.
• Perform an insulation test of motor windings to ensure satisfactory insulation
resistance.
• Conduct full start-up procedure as stated in the "Start-Up Procedure" on page 7. Be
especially thorough for cleaning and inspection prior to start-up.
. Do not let the coating contact the sheave
®
Unit Operation and
Storage
Prolonged Outdoor Storage
Motor Recommendations
Maintenance Requirements
Start-Up Preparation After
Prolonged Storage
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