Trane QFNA-IOM-1 Fan User Manual


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EstablishingASchedule
Establishingaregularschedulefor
inspectingandperforming
maintenanceprocedures.
Acceptablescheduleswillvary
dependinguponthetypeof
applicationandlocalconditions.
Consultthe“TroubleShooting”
sectionifproblemsare
encountered.
V-BeltDrive
V-BeltDrivesshouldbeinspected
orperiodicallyforalignment,
tension,andbeltwear.Beltsmust
betightenoughtoavoidsqueal
andonslippageduringoperation.
Slightsquealatstart-upisnormal.
Overtensionofthebeltswillcause
fanandmotorbearingwearand
shortenthelifeofthebelt. When
beltsarereplaced,amatchedset
(typeanddimension)shouldbe
used.
Sheavesandbeltsshouldbe
cleanedwithadrycloth.Oiland
greasemustbekeptawayfrom
beltsandsheavesbecausethey
willcausedeteriorationand
slippageofthebelts. Useofbelt
dressingisnotrecommended.
VariableInletVanes
Inspectinletvanesforfreedomof
operationandwear.Cleanwitha
dryclothasconditionsrequire.
Thesevaneshavesleevetype
bearingswhichdonotrequire
lubrication.
IsolationBase
Inspectthebaseforfreedomof
movementandtheboltsfor
tightness.Springsshouldbe
inspectedforcracksandfatigue
andreplacedifnecessary.Rubber
isolationshouldbecheckedfor
deterioration.Keepoil,grease,
chemicalsanddirtawayfrom
isolators.
WheelandHousing
Allboltsandsetscrewsonthe
entirefanshouldbecheckedfor
tightness.Retightenaccordingto
Tables4,5,10,11and13.
Anydirtaccumulationonthe
wheelorinthehousingshouldbe
removedtopreventimbalance.
Especiallyinspectforany
accumulationstheinletcone.The
paintonfansandaccessories
shouldbetouchedupoccasionally
topreventdeteriorationofthe
metal.Thisisparticularly
importantonunitshavingspecial
coatings.
Caution:
Whenevertheoperating
conditionsofthefanaretobe
changed,(speed,pressure,
temperature,etc.)TheTrane
Companymustbeconsultedto
determinewhetherornotthe
unitcanbeoperatedsafelyat
thenewconditions.
ScheduledPreventive
MaintenanceServices
Therecommendedschedulemay
varywithclimateandequipment
useconditions.Inletvanes,for
example,mayneedtobecleaned
moreofteninadusty
environment.Makeschedule
adjustmentsaccordingly.An
exampleofaScheduled
MaintenanceforQFanandSuper
QIIFanisshowninTable9.
Note: Foranyconditionsnot
coveredinthistable,consultThe
TraneCompany.
QFNA-IOM-1 21
Maintenance
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