8
W W W . B A L T I M O R E A I R C O I L . C O M . A U
M A R 2 1 0 - 2
Maintenance Requirements
• Rotate all fans and motor shafts monthly by hand. Hand-turning
will ensure that the shafts and bearings are free 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 the axial fan(s) annually to ensure the blades are tight and
there is no obvious corrosion between the hub and the fan blade
• Inspect the rust preventative coating on all motor external
machined surfaces including shaft extensions monthly. If necessary,
re-coat the surfaces with RUST VETO®.
Start-Up Preparation After Prolonged Storage
Keep in mind that start-up procedures after long periods of storage are
just as important as pre-shutdown procedures.
• The motor should be thoroughly inspected, cleaned, and restored to
its pre-storage condition.
• Inspect axial fans prior to start-up to ensure that the blades are
tight and that there is no obvious corrosion between the hub and
the fan blade. Do not energize the fans if there is obvious corrosion
of fan components. Loose fan blades could result in fan failure and
possible injury or damage.
• Reinstall all fan belts, motors, door gaskets, 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, available
on www.BaltimoreAircoil.com.au or by contacting your local BAC Rep.
• 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 4. Be especially thorough for cleaning and
inspection prior to start-up.
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