
7.FinallyconfirmthatalltighteningboltshavebeentighteningtotorqueMA.Todothis,
movingclockwiseacrossthebolts,tighteneachoneuntilnonecanbeturnedbyatorque
wrenchsetatMA
■Removal
1.Confirmthatthereisnotorqueorthrustloadsonthehuborshaft.Whenthetightening
boltsareloosened,the POWER-LOCK maysuddenly
releaseandallowthedevicetospinorcomeoff.After
ensuring safety, slowly loosen and remove the
tighteningbolts.
2.RemovehubandthePOWER-LOCKfromtheshaft.
3. If the POWER-LOCK still locks even after loosening
bolts,tightenboltsintothetappedholesforremoval.
(seeFig.4)
Important
1.Neveruselubricantscontainingsiliconeormolybdenumdisulfide.
2.Wheninstallingthetighteningbolts,alwaysuseatorquewrench.
3.DonotuseanyboltsotherthantheboltsthatweresuppliedwiththePOWER-LOCK.(The
boltsrequiredforthePOWER-LOCKarespecialboltsofahightensilestrengthandonly
thosesuppliedwiththePOWER-LOCKshouldbeused.)
4.Sincethe POWER-LOCKASseriesare notofself-aligningunit, centeringmustbe made
throughthedirectcontactbetweenhubandshaft.
■NoticeforthePOWER-LOCKSSandSWseries
1.ThePOWER-LOCKSSseries(stainlessseries)
●Coloroftighteningboltsisblack(notsteelcolor)becauseofaspecialcoating.
●UsethePOWER-LOCKSSseriesatdryconditionafterwipingoffdust/oilattheinside
ofhub,shaftandthePOWER-LOCKitself.
●Donotputanyoilorgreasetoavoidthetorquedown.
2.ThePOWER-LOCKSWseries(waterresistanceseries)
●TighteningboltsofthePOWER-LOCKSWseriesarestainlesswithblackcolorforM12
andsmaller,andspecialsteelwithgoldcolorforM14andlarger.
■Warranty:
TsubakiEmersonCo.:hereinafterreferredtoas"Seller"
Customer:hereinafterreferredtoas"Buyer"
GoodssoldorsuppliedbySellertoBuyer:hereinafterreferredtoas"Goods"
1. Warrantyperiodwithoutcharge
Effective18monthsfromthedateofshipmentor12monthsfromthefirstuseofGoods,including
installationofGoodstoBuyer'sequipmentormachines-whichevercomesfirst.
2. Warrantycoverage
Shouldanydamage or problemswiththe Goodsarisewithin the warrantyperiod,given that the
Goodswereoperated and maintainedaccordingto theinstructionsprovidedin themanual,Seller
willrepairandreplaceatnochargeoncetheGoodsarereturnedtotheSeller.
Thiswarrantydoesnotincludethefollowing:
1) Any costs related to removal of Goods from the Buyer's equipment or machine to repair or
replaceparts.
2)CoststotransportBuyer'sequipmentormachinestotheBuyer'srepairshop.
3)Coststoreimburseanyprofitlossduetoanyrepairordamageandconsequentiallossescaused
bytheBuyer.
3. Warrantywithcharge
SellerwillchargeafeeforanyinvestigationandrepairofGoodscausedby:
1)Improperinstallationduetonotproperlyfollowingtheproceduresintheinstructionmanual.
2)InsufficientmaintenanceorimproperoperationbytheBuyer.
3)IncorrectinstallationofGoodstootherequipmentormachines.
4)AnymodificationsoralterationsofGoodsbytheBuyer.
5)AnyrepairbyengineersotherthantheSellerorthosedesignatedbytheSeller.
6)Operationinaninappropriateenvironmentnotspecifiedinthemanual.
7) Force Majeure or forces beyond the Seller's control such as natural disasters and injustices
committedbyathirdparty.
8)SecondarydamageorproblemsincurredbytheBuyer'sequipmentormachines.
9)Defectivepartssupplied,orspecifiedbytheBuyer.
10)IncorrectwiringorparametersettingbytheBuyer.
11)TheendoflifecycleoftheGoodsundernormalusage.
12)LossordamagenotliabletotheSeller.
4. Dispatchservice
Service to dispatch a Seller's engineer to investigate, adjust or trial test Seller's Goods is at the
Buyer'sexpense.
5. Disclaimer
1)Inourconstanteffortstoimprove,TsubakiEmersonmaymakechangestothisdocumentorthe
productdescribedhereinwithoutnotice.
2)Considerableefforthas been made to ensurethatthecontents of this document arefreefrom
technical inaccuracies and errors. However, any such inaccuracies or errors reported will be
gladlyexaminedandamendedasnecessary.
●Read this instruction manual and other attached documents thoroughly before installing
andusingthePOWER-LOCK.
●Use the POWER-LOCK only after having full knowledge of the equipment and all
applicablesafetyprocedures.
●Keepthisinstructionmanualwheretheusercanalwaysrefertoit.
Safety precautions in this manual are classified into two categories: "WARNING" and
"CAUTION".Thesearedefinedasfollows:
FailuretofollowtheinstructionsunderCAUTION mayalsoresultindeathorserious
injurydependingontheparticularsituation.
ThankyouforyourpurchaseoftheASseriesPOWER-LOCK.
ThePOWER-LOCKisafrictional,keylessshaft-hublockingdeviceforconnectinghubsand
shafts subject to large torque variations.
Fitting is simply made by tightening bolts
after installing the POWER-LOCK between
theshaftandhub.Sincetorqueistransmitted
by the contact pressure and friction between
thesurfacesincontactwiththehubandshaft,
the condition of the contact surfaces and
proper tightening of the bolts are of great
importance. Read first and then follow all of
the instructions carefully so as to ensure
satisfactoryperformance.
■Installation
1.Cleantheinnersurfaceofthehubandsurfaceoftheshaft,andapplyaslightamountofoil
tobothsurfaces.Neveruselubricantscontainingsiliconeormolybdenumdisulfide.
2.RemovethetighteningboltsfromthePOWER-LOCKandcleanandslightlyoilorgrease
them. Threads and seats of the tightening bolts must be sufficiently lubricated. (If the
POWER-LOCKisnotsufficientlylubricatedatalllocations,excessfrictionwillresultand
preventthespecifiedtorquefrombeingobtained.)
3. Insert the POWER-LOCK into the hub and shaft and tighten the bolts by hand until a
slight positive contact is obtained and bring them to desired position. (Never strike the
POWER-LOCKwithahammerorothersuchtoolduringthemounting.)
4. Set a torque wrench to approximately 1/4 of the torque MA (refer to the table given
below for torque MA) and tighten each of the tightening bolts evenly in the sequence
showninfigure3.
5.Raisethetorquewrenchsettingto1/2ofthetorqueMAandrepeattheproceduregiven
instep4above.
6.RaisethetorquewrenchsettingtothefulltorqueMAandrepeattheproceduregivenin
step4above.
Hex.socket
screwkeys
Torque
wrench
Tappedholesforremoval
CAUTION
WARNING
POWER-LOCKASSERIES
INSTRUCTIONMANUAL
NOTICEFORSAFETY
1.Taperring(A)
2.Taperring(B)
3.Outerring
4.Innerring
5.Tighteningbolts
Fig.1:Configuration
Fig.2 Fig.3Tighteningsequenceforbolts
Fig.4Removal
(Overall)
●If the device is used on equipment for transporting people, install the appropriate protection
devicestothetransportationequipmenttoprovidetherequiredsafety.
●If the device is used on elevation equipment, install the appropriate safety devices to the
elevation equipment to prevent the falling of materials. The falling of materials may cause
injurytopersonnelordamagetotheequipment.
●Comply with all applicable safety standards of the country where the device is used. When
revisionsarepublished,thoseupdatedrevisionsshallapply.
(Delivery)
●Verifythatyoureceivedexactlywhatyouordered.Useoftheincorrectitemmaycauseinjury
orequipmentdamage.
(Installation)
●Alwaysuseatorquewrenchwheninstallingthetighteningboltsandadheretotheprocedure
andtorquevalueslistedinthisinstructionmanual.Iftheboltsaretightenedwithouttheuseof
atorquewrench,the correct torque maynotbeobtained causing slippage ordeformationof
thePOWER-LOCKandresultinanaccident.
●Never use oils containing silicone or molybdenum disulfide lubricants when lubricating the
connectingsurfaces(e.g.shaftorhubinnersurface)forthePOWER-LOCK.
●OnlyusetheboltsthatcamewiththePOWER-LOCK.Ifboltsaremissingordamaged,contact
oursalesoffice orour dealersfromwhom youpurchasedfor replacement.Useof otherbolts
mayresultinbreakageoftheboltandcauseanaccident.
●Never strike the POWER-LOCK with a hammer or other such tool when mounting the
POWER-LOCKtotheshaft and hub. Doing so maydeformthePOWER-LOCK and cause an
accident.
(Removal)
●Alwaysconfirmthattherearenotorqueorthrustloadsonthehuborshaftbeforeremoving
the POWER-LOCK. If torque or thrust loads are present, the POWER-LOCK may suddenly
releaseandallowthedevicetospinorcomeoffwhenthetighteningboltsareloosened.
●Especiallyforelevatorapplications,neverloosenthetighteningboltswhilealoadisbeingheld.
Doingsomaycausetheloadtodrop.
(Repeateduse)
●Completelyinspecteachpart of thePOWER-LOCKpriorto reusing. If anydamageis found,
replacetheunit.
Death or serious injury may result from misusing the product
withoutfollowingtheinstructions.
Minor or moderate injury, as well as damage to the product may
resultfrommisusingtheproductwithoutfollowingtheinstructions.
CAUTION
WARNING
19〜40
42〜65
70〜95
100〜160
170〜200
220〜260
280〜300
M6
M8
M10
M12
M14
M16
M18
18.3{13.5}
40.2{29.7}
81.3{60.1}
142{105}
225{167}
348{257}
475{351}
13.7{10.1}
33.3{24.6}
67.6{50.5}
118{87}
186{138}
289{214}
397{290}
mm
3/4−11/2
15/8−29/16
25/8−33/4
315/16−6
61/2−8
81/2−101/2
11−1113/16
Inch
Tightening
boltsize
TighteningtorqueMA
forstandardseries
N・m{ft・lbs.} N・m{ft・lbs.}
TighteningtorqueMA
forSSandSWseries
Table1:TighteningboltsizeandtorqueMA(SS:stainlessseries,SW:waterresistanceseries)
POWER-LOCKshaftdia.
GroupCompanies:
U.S.TSUBAKI,INC.
Illinois,U.S.A.
TSUBAKIofCANADALTD.
Ontario,Canada
TSUBAKIAUSTRALIAPTY.LTD.
Silverwater,Australia
TSUBAKIMOTOSINGAPOREPTE.LTD.
Jurong,Singapore
TAIWANTSUBAKIMOTOCO.
Taoyuan-Hsien,Taiwan
KOREACONVEYORIND.CO.,LTD.
Seoul,Korea
TSUBAKIMOTOEUROPEB.V.
Dordrecht,TheNetherlands
TSUBAKIMOTOU.K.LTD.
Nottingham,UnitedKingdom
TSUBAKIEMERSONMACHINERY
(SHANGHAI)CO.,LTD.
Shanghai,China
1-1,Kohtari-Kuresumi,Nagaokakyo
Kyoto617-0833,Japan
Phone:+81-75-957-3131
Facsimile:+81-75-957-3122
Internet:
http://www.tsubaki-emerson.co.jp/english/