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This manual is to guide the users in the proper storage, installation, operation and maintenance procedures
to ensure maximum equipment life and trouble-free operation. HANDLING AND MAINTENANCE
SHOULD ALWAYS BE PERFORMED BY EXPERIENCED AND TRAINED PERSONNEL.
RECEIVING, HANDLING AND STORAGE
Rough handling during shipment and improper storage can cause damage that is not noticeable until the fan
is in operation. This can be avoided with proper storage and handling techniques.
Fan should be hoisted with slings placed around the fan housing. Touch up the scratch coated surfaces
during lifting, to prevent corrosion to occur at this area. Store the fan in a clean and dry place, preferably
indoor to ensure fan shaft, bearing and fan casing are protected against dust and corrosion. Do not store
the fan in a location where it will be subjected to vibration. This can cause the internal surface to rub
against each other and damage the bearings.
START-UP CHECK LIST
Before putting any fan into initial operation the manufacturer's instruction must be followed. Complete the
following checklist to make sure that the fan is ready to run.
Lock out the primary and all secondary power sources.
Make sure the foundation or mounting arrangement and the duct
connections are adequately designed in accordance with recognized
acceptable engineering practices and with the fan manufacturer's
recommendations.
Check and tighten all hold-down (securing) bolts.
Check the fan assembly and bearings for proper grounding to prevent
static electricity discharge.
Spin impeller to see whether it rotates freely and is not grossly out of
balance.
Inspect impeller for correct rotation for the fan design.
Check belt drive or coupling alignment, use recommended belt tension.
Check belt drive for proper sheave selection and make sure they are
not reversed.
Properly secure all safety guards.
Switch on the electrical supply and allow the fan to reach full speed.
Check carefully for :-
(1) Excessive vibration
(2) Unusual noise
(3) Proper amperage and voltage values
(4) Proper belt alignment
If any problem is indicated, SWITCH OFF IMMEDIATELY. Lock out the electrical supply,
secure the fan impeller if there is a potential for wind milling. (Impeller turning due to a
draft through the system). Check carefully for the cause of the trouble and correct as
necessary.
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