Triangle Engineering of Arkansas FHI SERIES PANEL FANS Propeller Installation User Manual
Installation instructions

INSTALLATION INSTRUCTIONS
For Sound Fighter Fan
tM
ProPellerS
equiPPed with SPlit taPer BuShingS
SeCtion i:
general inForMation
1. airFoil ProPeller and BuShingS
SoundFighterFans™castaluminumairfoil
propellersarefurnishedwithsplittaperlock
bushingsformountingthepropellertotheshaft.
Whenproperlypositioned,thebushinggripsthe
hubwithapositiveclampingaction.Theflangeis
boltedtothefanhubtosecurethefan,andwhen
theboltsaretightened,thetaperedsurfaceofthe
splitbushingiscompressedaroundtheshaft.
2. inStalling aSSeMBlY oF ShaFt
Thefirststepininstallingataperedbushing
istothoroughlycleantheshaft,theboreand
exteriorofthebushing,andthetaperedbore
ofthecomponent.Nicks,burrs,dirt,andchips
shouldberemoved,sincetheycancausealoss
ofconcentricityandevengrippingstrength.The
housingshouldbeinsertedintothehubwithit’s
holesmatchedwiththehub’sholes.Thecap-
screwsshouldbeinsertedintheholesthatare
threadedonthehubside.Thepropellershould
thenbemountedontheshaft,withthebushingin
place,andthecapscrewstightenedtothetorque
valuesshownbelow.
3. noteS on CorreCt aSSeMBlY
A.Bushingbarrelandboreofpropelleraretapered
-thisassuresconcentricmountingandatrue
runningpropeller.
B.Capscrews,whentightened,lockbushingin
propeller.Usecapscrewsthreadedfulllength.
BuShing
diaMeter
length
torque
no.
(Ft.lBS.)
H
1/4-20
1"
6
P
5/16-18
1-1/4"
13
Q
3/8-16
2"
2
SD
1/4-20
1"
6
SK
5/16-18
1-1/4"
13
Caution:MAKESURECAPSCREW
LENGTHSMATCHTRIANGLEENGINEERING’S
RECOMMENDATIONS.SHORTERCAPSCREWS
FROMBUSHINGMANUFACTURERAREDESIGNED
FORCASTIRON,NOTALUMINUM.
C.Bushingissplitsothatwhenthelockingcapscrews
forcethebushingintothetaperedbore,the
bushinggripstheshaftwithapositiveclampingfit
-thiswillwithstandvibrationandpunishingloads
withoutbeingloosened.
D.Propellerandbushingassemblyiskeyedtoshaft
andheldinplacebycompression-thisgives
addeddrivingstrength.Theuseofanoptional
keyforsecuringthebushingtothepropellerhub
isgenerallynotrequired,exceptonhighspeed,
hightorqueapplications.Contactfactoryfor
recommendations.
E.Propelleriseasilyremovedfromtheshaftby
insertingandtighteningtwoofthecapscrewsinto
thetappedholesinthebushingflange-thisforces
thebushingloosefromthepropellerandreleases
thecompressionsothattheentireassemblywill
slidefromtheshaft.
Flangedtapered
bushingboltstohub.
Extraboltholesare
usedtofacilitate
removal.Flangeshould
notbehammered.