SKF TKSA 20 User manual

Instructions for use
SKF Shaft Alignment Tool
TKSA 20

2 SKF TKSA 20
EC Declaration of conformity ....................................................................................3
Safety recommendations ..........................................................................................4
1. Introduction .....................................................................................................5
1.1 Principleofoperation.................................................................................................... 5
1.2 Machineconguration................................................................................................... 5
1.3 Measuringpositions...................................................................................................... 6
2. Shaft alignment tool .........................................................................................7
2.1 Technicaldata...............................................................................................................10
3. Instructions for use ........................................................................................11
3.1 Measurementunits.....................................................................................................11
3.2 Feetontheground......................................................................................................11
3.3 Attachmentofmeasuringunits.................................................................................11
3.4 Switchon......................................................................................................................12
3.5 Aimingthelaserlines.................................................................................................12
3.6 Machinedimensions....................................................................................................15
3.7 Measuringsequence...................................................................................................16
3.8 Alignmentresults.........................................................................................................17
 3.8.1Measuredmisalignment...................................................................................17
 3.8.2Verticalalignment.............................................................................................17
 3.8.3Horizontalalignment........................................................................................19
3.9 Verifyalignment...........................................................................................................20
3.10Softfoot.......................................................................................................................21
4. Alignment report ............................................................................................22
5. Advanced use .................................................................................................24
5.1 Limitedrotation...........................................................................................................24
5.2 Troubleshooting..........................................................................................................24
 5.2.1Thesystemdoesnotswitchon.......................................................................24
 5.2.2Nolaserlines.....................................................................................................24
 5.2.3Nomeasurementvalues..................................................................................24
 5.2.4Fluctuatingmeasurementvalues...................................................................24
 5.2.5Incorrectmeasuringresults.............................................................................25
 5.2.6Measurementresultscannotberepeated....................................................25
6. Maintenance...................................................................................................25
6.1 Handlewithcare..........................................................................................................25
6.2 Cleanliness....................................................................................................................25
6.3 Batteriesofthedisplayunit.......................................................................................25
6.4 Replacementofmeasuringunitsordisplayunit....................................................25
6.5 Sparepartsandaccessories......................................................................................26
Table of contents

3SKF TKSA 20
EC Declaration of conformity
We,SKFMaintenanceProducts,Kelvinbaan16,
3439MTNieuwegein,declarethat
SKF Shaft Alignment Tool
TKSA 20
hasbeendesignedandmanufacturedinaccordancewith
EMCDIRECTIVE2004/108/ECasoutlinedintheharmonizednormfor
Emission:EN61000-6-3:2007
Immunity:EN61000-6-2:2005,EN61000-4-2,-3
DirectiveRoHS,2002/95/EC

ThelaserisclassiedinaccordancewiththeEN60825-1:2007.
Thelasercomplieswith21CFR1040.10and1040.11exceptfordeviations
pursuanttoLaserNoticeNo.50,datedJune24,2007.
TheNetherlands,March2010
SébastienDavid
ManagerProductDevelopmentandQuality

4 SKF TKSA 20
Safety recommendations
• Alwaysturnoffthepowerofthedrivemachinebeforeyoustart
working.
• Donotexposetheequipmenttoroughhandlingorheavyimpacts.
• Alwaysreadandfollowtheoperatinginstructions.
• Thetoolusestwolaserdiodeswithanoutputpowerbelow1mW.
Still,neverstaredirectlyintothelasertransmitter.
• Calibratetheequipmentregularly.
• Neveraimthelaserlineintosomeone’seyes.
• Openingthehousingofthemeasuringunitmayresultinhazardouslight
exposureandvoidswarranty.
• Theequipmentshouldnotbeusedinareaswherethereisariskfor
explosion.
• Donotexposetheequipmenttohighhumidityordirectcontactwith
water.
• AllrepairworkshouldbetakencareofbyanSKFrepairshop.

5SKF TKSA 20
1. Introduction
Perfectalignmentofmachineryshaftsiscrucialtopreventprematurebearingfailure,
shaftfatigue,sealingproblemsandvibrations.Itfurtherreducestheriskofover-heating
andexcessiveenergyconsumption.TheSKFShaftAlignmentToolTKSA20offersaneasy
andaccuratewayofadjustingtwounitsofrotatingmachinerysothattheshaftsofthe
unitsareinastraightline.
1.1 Principle of operation
TheTKSA20systemusestwomeasuringunitsbothprovidedwithalaserdiodeanda
positioningdetector.Astheshaftsarerotatedthrough180°anyparallelmisalignment
orangularmisalignmentcausesthetwolaserlinestodeectfromtheirinitialrelative
position.
Themeasurementsfromthetwopositioningdetectorsautomaticallyenterthelogic
circuitryinsidethedisplayunit,whichcalculatesthemisalignmentoftheshaftsand
advisesoncorrectivealignmentsofthemachinefeet.
Fig. 1. Parallel misalignment Fig. 2. Angular misalignment
Afterastraightforwardmeasuringprocedure,thetoolimmediatelydisplaysthe
misalignmentoftheshaftsandthenecessarycorrectiveadjustmentsofthefeetofthe
machine.Sincethecalculationsaredoneinrealtimetheprogressofthealignmentcanbe
followedlive.
1.2 Machine conguration
Duringthealignmentprocedurewewillrefertothepartofthemachinerywhichwill
beadjustedasthe“Movablemachine”.Theotherpartwewillrefertoasthe“Stationary
machine”.
Fig. 3. Stationary and Movable machine

6 SKF TKSA 20
1.3 Measuring positions
Todenethevariousmeasuringpositionsduringthealignmentprocedureweuse
theanalogyofaclockasviewedfrombehindtheMovablemachine.Theposition
withthemeasuringunitsinanuprightpositionisdenedas12o’clockwhile90°
leftorrightisdenedas9and3o’clock.
Fig. 4. The analogy of a clock
A
B
C
Stationary
Movable
Movablemachine

7SKF TKSA 20
2. Shaft alignment tool
ThefollowingcomponentsareincludedwiththeTKSA20tools:
• Displayunit
• 2measuringunitswithspiritlevels
• 2mechanicalshaftxtures
• 2lockingchains
• Measuringtape
• Quickstartguide
• Certicateofcalibration
• CDROM,including:
-Instructionsforuse
-Quickstartguide
-Demonstrationvideo
-Shaftalignmentreport
• Batteries
• Carryingcase
Fig. 5. Tool components

8 SKF TKSA 20
Detailsofthedisplayunitandthemechanicalxturewithmeasuringunitcanbe
seenongures6and7.
B:5BWPUc0[XV]\T]cC^^[
C:B0!
/mils
A
S
B
M
C
mm
F 1
F 2
!
#
"
%
$
'
&
(

!
"
# $ %
1 Connectorformeasuringuniton
Stationarymachine
2 Connectorformeasuringuniton
Movablemachine
3 LCDDisplay
4 ON/OFFbutton
5 Increase(+)button
6 Nextbutton
7 Decrease(-)button
8 Previousbutton
9 Machinedimensions(A,BandC)/
Measuredvalues(SandM)
10Rearfeetvalues
11Frontfeetvalues
12Indicationofparallelcouplingvalue
direction
13Indicationofangularcouplingvalue
direction
14Position(9/12/3o’clock)ofmeasuring
units
15Lowbattery
16Imperialormetricunits
Fig. 6. Display unit

9SKF TKSA 20
Fig. 7. Mechanical xture with measuring unit
1
2
3
4
5
Laseremission
Laserwarningsignal
Laserdetector
Verticalneadjustment
Spiritlevel
6
7
8
9
10
Release/tighteningknob
Connectionrod
Chainxationscrew
Lockingchain
Mechanicalxture

10 SKF TKSA 20
2.1 Technical data
Denotation 1mil=1thousandthofaninch
Measuring units
Housingmaterial
Typeoflaser
Laserwavelength
Laserclass
Maximumlaserpower
Maximumdistancebetweenmeasuringunits
(measuredbetweenxturecenterline)
Minimumdistancebetweenmeasuringunits
(measuredbetweenxturecenterline)
Typeofdetectors
Cablelength
Dimensions
Weight
ABSplastic
Diodelaser
670-675nm
2
1mW
850mm(2.8ft)
70mm(2.7in)
Single-axisPSD,8.5x0.9mm
(0.3x0.04in)
1.6m(5.2ft)
87x79x39mm(3.4x3.1x1.5in)
210gram(7.3oz)
Display unit
Housingmaterial
Displaytype
Batterytype
Operatingtime
Autopoweroff
Displayedresolution
Dimensions
Weight
ABSplastic
LCD35x48mm(1.4x1.9in)
2x1.5VLR14Alkaline
20hourscontinuousoperating
after1hourifnokeysarepressed
0.01mm(0.1milwith“inch”setting)
215x83x38mm(8.4x3.2x1.4in)
300g(10.5oz
Complete system
Shaftdiameterrange
Optionalchain
Accuracyofsystem
Temperaturerange
Operatinghumidity
Carryingcasedimensions
Totalweight(incl.case)
Calibrationcerticate
Warranty
30-150mm(1.2-5.9in)
150-500mm(5.9-20in)
<2%+/-0.01mm
0-40°C(32-104°F)
<90%
390x310x147(15.3x12.2x5.7in)
3.6kg(7.9lb)
validfortwoyears
12months

11SKF TKSA 20
3. Instructions for use
3.1 Measurement units
Metric or imperial sizes
Thetoolisdeliveredwithapre-selectionformeasurementsinmillimeter.
Incaseyouwanttochangeintoinches,presstheminussignsimultaneouslytoswitching
thetoolon.Torevertbacktomillimeterpresstheplussignwhenswitchingon.
Thelastsettingwillalwaysberemembered.
3.2 Feet on the ground
Ifthereisanydoubtwhetherthemachineisrestingequallyonallfeetplease
checkforsocalled“softfoot”.Theprocedureforthisoperationisdescribedin
chapter3.10.
3.3 Attachment of measuring units
a)Usethexturestoattachthemeasuringunitstotheshafts.Makesurethatthe
M-markedunitisattachedtotheMovablemachineandtheS-markedunittothe
Stationarymachine.Fordiameterslargerthan150mm,anaccessoryextensionchain
(TMEAC2)isrequired.
Fig. 8. Attachment of mechanical xture with chain
Ifitisnotpossibletoattachthexturesdirectlytotheshafts(e.g.incaseofspace
problems)thexturescanbeattachedtothecoupling.
Note!
Itishighlyrecommendedtopositionthemeasuringunitsatequaldistancefromthe
middleofthecoupling.

12 SKF TKSA 20
b) Connectthemeasuringunitstothedisplayunit.Makesurethatthemarkingonthe
cablescorrespondstothemarkingoftheportsinthedisplayunit(g.9).
Fig. 9. Connection of the measuring units
3.4 Switch on
SwitchonthedisplayunitbypressingtheON/OFFbutton.Youwillnowbe
promptedtoenterthemachinedimensionsasperchapter3.6.Ifnobuttonis
pressedwithin60minutes,theunitwillturnoffautomatically.
3.5 Aiming the laser lines
a) Putthetwomeasuringunitsinthe12o’clockpositionwiththehelpofthespiritlevels
(g.10).
Fig. 10. The 12 o’clock position

13SKF TKSA 20
b) Aimthelaserlinessothattheyhitinthecentreofthetargetoftheopposite
measuringunit(g.11).
B
0
B
0
Fig. 11. Hit the target
ALaserline
c) Forcoarseadjustmentreleasethemeasuringunitbyunlockingtheknobontheside
oftheunit(g.12).Thisallowsthemeasuringunittoslideupanddowntherodatthe
sametimeasitcanswivelfreely.Fortheneadjustmentinheightusetheadjustment
wheelsonthemeasuringunits.
0
2
1
Fig. 12. Adjustment mechnism
A
B
C
Verticalpositioningofmeasuringunit
Horizontalrotationofmeasuringunit
Verticalneadjustmentoflaser
C

14 SKF TKSA 20
d) Ifthehorizontalalignmentisverypoorthelaserlinesmighttraveloutsidethedetector
areas.Ifthishappensaroughalignmentmustbedone.Dothisbyaimingthelaser
linesatthepositioningdetectorsinthe9o’clockposition.
 Turnthemeasuringunitstothe3o’clockpositionwhenthelineswillhitoutsidethe
detectorareas.Adjustthelinestothepositionhalf-waybetweenthedetectorcentre
andtheactualpositionbymeansoftheadjustmentmechanismasperg.13.Align
theMovablemachineuntilthelineshitthecentreofthepositioningdetector.
B
(
B
"

B
"
B
"
Fig. 13. Rough alignment
A
B
C
Thebeammovesoutsidethedetectorarea
Adjustthebeamtohalfthetravel
Directthemachinetohitthecentre
A
B
C

15SKF TKSA 20
3.6 Machine dimensions
Thecongurationofthemachineryisdenedbythreedimensions.
A: Thedistancebetweenthetwomeasuringunits,asmeasuredbetweenthexture
centremarks.
B:ThedistancebetweentheM-markedmeasuringunitandthefrontpairoffeetofthe
Movablemachine.
C: ThedistancebetweenthefrontfeetandtherearfeetoftheMovablemachine.
0 2
1
Fig. 14. Machine dimensions
a)MeasuretheA,BandCdistances.Thedefault
valuesforthesethreedistancesare:
 A=200mm(8in)
 B=200mm(8in)
 C=400mm(15in)
b) Adjusteachvaluebyusingthe+and-buttons.
c) Conrmthesettingofeachvaluebypressing
the“next”button.
Note!
Ifyouneedtogobackandchange
valuesalreadyenteredusethe“previous”
button.
Fig. 15. Distances A, B and C

16 SKF TKSA 20
3.7 Measuring sequence
Duringthemeasuringcycletheshaftsarerotated
through180degrees.Anyrelativemovementof
thelaserlinesduringthis
rotationindicatessomesortofmisalignment.The
logiccircuitrywithinthetoolwilltranslatethis
movementtomisalignmentguresandadviseon
howtocorrectit.Acirclesymbolonthedisplay
willhelp,indicatingtherequiredpositionofthe
measuringunitsduringeachstep(g.16).
Asdescribedearlier(chapter1.3)weusethe
analogyofaclocktodescribethedifferent
positions.
Fig. 16.Display guides you to the
9 o’clock position
a)Adjustthemeasuringunitstothe9o’clock
positionwiththeaidofthespiritlevels(g.
17).
b)Conrmthemeasurementbypressing

Fig. 17. Adjust to the 9 o’clock position
c) Followthecirclesymbolonthedisplayand
rotatethemeasuringunitstothe3o’clock
position(g.18).
d) Conrmthemeasurementbypressing

Note!
Bypressingthe“previous”button ,youwill
reversetheprocessinordertorepeatanyof
themeasurementstepsortoadjustanyofthe
machinedimensions Fig. 18. Rotate to the 3 o’clock position

17SKF TKSA 20
3.8 Alignment results
3.8.1 Measured misalignment
Afterthesecondmeasurementat3o’clockhasbeenconrmed,themisalignmentofthe
twomachinesinthemeasurementplane,theplanewherethemeasuringunitsare
(i.e.horizontalinthiscase)isdisplayed(g.19).
Coupling values
Thecouplingvalueontopofthedisplayshows
  theanglebetweenthecentrelinesofthe
  twoshaftsinthemeasurementplane(measured
  inmm/100mmor0.001”/1”).
Thevaluebelowonthedisplayshowsthe
  paralleloff-setofthetwocentrelinesinthe
  measurementplane.
Thesetwovaluesarethecouplingvaluesinthe
measurementplane.
Feet values
ThevaluesF1andF2onthedisplayindicatethe
relativepositionsoftheMovablemachineinthe
measurementplane.
F I TheF1valueindicatestherelativepositionof
 thefrontpairoffeetoftheMovablemachine.
F 2TheF2valueindicatestherelativepositionof
 therearpairoffeetoftheMovablemachine.
Fig. 19. Measured misalignment
3.8.2 Vertical alignment
Adjustthemeasuringunitstothe12o’clock
position(g.20)withtheaidofthespiritlevels.
Observethecouplingandfeetvalueslive
adjustment.
Fig. 20. The 12 o’clock position

18 SKF TKSA 20
Themachinemisalignmentshouldalwaysbewithinthemanufacturer’sspecied
tolerances.Incasesuchtolerancesaremissingtable1canbeusedasaroughguide-line.
Table1.Acceptablemaximummisalignment
rpm mm/100 mm mm 0.001”/1” 0.001”
0-1000
1000-2000
2000-3000
3000-4000
4000-6000
0.10
0.08
0.07
0.06
0.05
0.13
0.10
0.07
0.05
0.03
1.0
0.8
0.7
0.6
0.5
5.1
3.9
2.8
2.0
1.2
a) Ifthemeasuredcouplingvaluesarewithinthe
tolerances,theMovablemachinedoesnothavetobe
adjusted.
 Correctthehorizontalmisalignment.Continueto
chapter3.8.3Horizontalalignment.
b) Ifthemeasuredcouplingvaluesarehigherthan
theacceptabletoleranceschecktherecommended
correctionsofthefeet.
TheF1andF2valuesonthedisplay
indicatetherelativepositionsofthe
Movablemachinewhenviewedfromthe
side(g.21).
Fig. 21. Display vertical alignment
Apositivevaluemeansthatthefeetaretoohighand
needtobeloweredwhileanegativevaluemeansthe
opposite(g.22).
Loosenthefeetofthemovablemachine.
Usetheshimsincludedwiththetooltoadjustthe
heightofthemachine.Observethecouplingandfeet
valuesliveadjustmentandcomparethemwiththe
valuesintable1.
Afterhavingcarriedouttheverticalalignmentproceed
tothehorizontalalignment(chapter3.8.3).
Fig. 22. Vertical alignment

19SKF TKSA 20
3.8.3 Horizontal alignment
Movethemeasuringunitstothe3o’clockposition(g.
23).
Observethecouplingandfeetvaluesliveadjustment.
Fig. 23. The 3 o’clock position
Machinemisalignmentshouldbewithinthe
manufacturer’sspeciedtolerances.Incasesuch
tolerancesaremissing,table1canagainbeusedasa
generalrecommendation.
a) Ifthemeasuredcouplingvaluesarewithinthe
tolerances,nosidewaysadjustmentisnecessary.
b) Ifthemeasuredcouplingvaluesarehigherthan
theacceptabletoleranceschecktherecommended
correctiononthefeet.
Fig. 24. Horizontal alignment