Invacare TDX SP2, TDX SP2 Series Service Manual

Invacare®TDX®SP2Series

enPowerWheelchair

ServiceManual

DEALER:Keepthismanual.
TheproceduresinthismanualMUSTbeperformedbyaqualied
technician.

©2017InvacareCorporation
Allrightsreserved.Republication,duplicationormodicationinwholeorinpartisprohibitedwithoutpriorwritten
permissionfromInvacare.Trademarksareidentiedby™and®.AlltrademarksareownedbyorlicensedtoInvacare
Corporationoritssubsidiariesunlessotherwisenoted.
Invacarereservestherighttoalterproductspecicationswithoutfurthernotice.

Contents

1General.........................................4

1.1Aboutthismanual..............................4

1.2Generalinformation............................4

1.3Notesonshipping..............................4

1.4Symbolsinthismanual..........................4

1.5Imagesinthismanual...........................4

2Safety..........................................5

2.1Safetyandttinginstructions.....................5

3Hygiene.........................................7

3.1Handlingofreturnedusedproducts.................7

4Setup...........................................8

4.1Adjustingseatingposition........................8

4.1.1Adjustinglowerleglength.....................8

4.1.2Adjustingseatdepth.........................8

4.1.3Adjustingcenterofgravityofseat...............8

4.1.4Moduliteseat..............................9

5T esting..........................................11

5.1Testingmotor.................................11

5.2Testingmotorbrake............................11

5.3Raintest.....................................11

5.4Fieldloadtest.................................11

5.5CheckingBatteryChargeLevel.....................12

6Service..........................................13

6.1Tighteningtorques.............................13

6.2Overviewmobilitydevice.........................13

6.3Chassis......................................14

6.3.1Stabilitylock...............................14

6.3.2WalkingBeams.............................17

6.3.3Steeringheadfront..........................18

6.3.4Removingrearsprings.......................18

6.3.5Installingrearsprings.........................18

6.3.6Replacingbatterytray........................19

6.3.7Replacingbatterybox.........................19

6.3.8Replacingrubberstopper......................20

6.4Drivecomponents..............................20

6.4.1Overviewmotor.............................20

6.4.2Replacingmotor/gearboxunit...................21

6.4.3Replacingorrotatingmotor/gearboxunitsealing

ring.....................................21

6.4.4Replacingmotor/gearboxclutch.................22

6.4.5Replacingcarbonbrushes......................22

6.4.6Replacingdrivewheelhub.....................23

6.4.7Replacingmotor/gearboxunit...................23

6.5Wheels......................................24

6.5.1Replacingriminsertsindrivewheels.............24

6.5.2Replacingcasterfork.........................24

6.5.3Adjustingcasterfork.........................25

6.5.4Replacingcastersondouble-sidedcasterforks......25

6.5.5Replacingcastersonsingle-sidedcasterforks.......26

6.5.6Replacingdrivewheel........................26

6.5.7Replacingtireorinnertube....................26

6.5.8Removingrearsuspension.....................28

6.5.9Removingrearsuspension–alternativemethod.....28

6.5.10Rettingrearsuspension.....................29

6.5.11Rettingrearsuspension–alternativemethod.....29

6.6Shrouds.....................................30

6.6.1Removingfrontshroud........................30

6.6.2Removingrearshroud........................30

6.6.3Removingtopshroud.........................30

6.6.4Replacingmudguard.........................31

6.7Controls.....................................31

6.7.1Replacingpowermodule......................31

6.7.2ReplacingG-Tracsensor.......................31

6.7.3Replacingoperatinghourcounter/connecting

cable....................................31

6.7.4Updatingdrivingprogram......................32

6.7.5Makingbatteriesaccessible....................32

6.7.6Replacingbatteries...........................33

6.7.7Removingthebatteries.......................34

6.7.8Replacingbatteries(Poweredsimpletilt20°).......34

6.7.9Replacingbatteries/replacingbatterycables........35

6.7.10Removingthebatteries......................36

6.7.11Generalinstructionsonhandlingthebatteries.....36

6.7.12Howtohandledamagedbatteriescorrectly.......37

6.7.13Checkingandreplacingmainfuse...............37

6.7.14ReplacingUSBcharger.......................38

6.7.15Checkingcable.............................38

6.7.16Cablerouting..............................38

6.8Lightingunit..................................38

6.8.1Replacingfrontbulb(conventionallighting

system)..................................38

6.8.2Replacingheadlightcomplete(conventionallighting

system)..................................39

6.8.3Replacingheadlightcomplete(LEDlighting

system)..................................39

6.8.4Replacingfrontlampholder(conventionallighting

system)..................................39

6.8.5Replacingfrontlampholder-(conventionallighting

system)..................................40

6.8.6Replacingfrontlampholder-(LEDlighting

system)..................................40

6.8.7Replacingrearbulb(conventionallighting

system)..................................40

6.8.8Replacingrearlightcomplete-(conventional

lightingsystem)............................40

6.8.9Replacingcompleterearlight-(LEDlighting

system)..................................41

6.8.10Replacingrearlampholder-(conventionallighting

system)..................................41

6.9Seating......................................41

7Troubleshooting...................................42

7.1Operationalfaults..............................42

7.2Drivefaultdiagnosis............................42

7.3Chargerfaultdiagnosis..........................45

7.4Serviceplan(1xannually)........................46

8Accessories......................................49

8.1Accessorieslist................................49

Invacare®TDX®SP2Series

1General

1.1Aboutthismanual

•ThismanualreferstocongurationswithModuliteseat
system.Olderspecicationshavebeendescribedin
revision11ofthisservicemanual.

•Forseatsystems,refertothecorrespondingmanual.

•ForShark,DX,DX2,refertorevision11ofthisservice
manual.

•ForLiNXcontrols,refertoLiNXServiceManual.

1.2Generalinformation

•Serviceandmaintenanceworkmustbecarriedout
takingthisservicemanualintoaccount.

•Itisimperativethatyouobservesafetyinformation.

•Informationaboutoperationoraboutgeneral
maintenanceandcareworkonthemobilitydevice
shouldbetakenfromServicemanual.

•Y oucanndinformationaboutorderingsparepartsin
thesparepartscatalogue.

•SparepartsMUSTmatchoriginalInvacareparts.Only
usesparepartswhichhavebeenapprovedbyInvacare.

•Wereservetherighttomakeanyalterationsonthe
groundsoftechnicalimprovements.

•Formoreinformationabouttheproduct,forexample
productsafetynoticesandproductrecalls,contactyour
localInvacarerepresentative.Foraddressandwebsite
seebackpageofthismanual.

•Themobilitydevicemayonlybemaintainedand
overhauledbyqualiedpersonnel.

•Theminimumrequirementforservicetechniciansis
suitabletraining,suchasinthecycleororthopedic
mechanicselds,orsufcientlylong-termjob
experience.

–Experienceintheuseofelectricalmeasuring

equipment(multimeters)isalsoarequirement.

–SpecialInvacaretrainingisrecommended.

•Alterationstothemobilitydevicewhichoccurasaresult
ofincorrectlyorimproperlyexecutedmaintenanceor
overhaulworkleadtotheexclusionofallliabilityon
thesideofINVACARE.

•IfyouhaveanyproblemsorquestionscontactInvacare
Service.

1.3Notesonshipping

•Ifthemobilitydevicehastobeshippedbacktothe
manufacturerformajorrepairs,youshouldalwaysuse
theoriginalpackagingfortransport.

•Pleaseattachaprecisedescriptionofthefault.

1.4Symbolsinthismanual

Inthismanual,hazardstatementsareindicatedbysymbols.
Thesymbolsareaccompaniedbyasignalwordthatindicates
theseverityoftherisk.

WARNING
Indicatesahazardoussituationthatcouldresult
inseriousinjuryordeathifitisnotavoided.

CAUTION
Indicatesahazardoussituationthatcouldresult
inminororslightinjuryifitisnotavoided.

IMPORTANT
Indicatesahazardoussituationthatcouldresult
indamagetopropertyifitisnotavoided.

Givesusefultips,recommendationsand
informationforefcient,trouble-freeuse.

ThisproductcomplieswithDirective93/42/EEC
concerningmedicaldevices.Thelaunchdate
ofthisproductisstatedintheCEdeclaration
ofconformity.

Thissymbolidentiesalistofvarioustools,
componentsanditemswhichyouwillneedin
ordertocarryoutcertainwork.

1.5Imagesinthismanual

Thedetailedimagesinthismanualaregivenmarksto
identifyvariouscomponents.Componentmarksintextand
operationalinstructionsalwaysrelatetotheimagedirectly
above.

4

1532486-L

Safety

2Safety

2.1Safetyandttinginstructions

Thesesafetyinstructionsareintendedtopreventaccidents
atwork,anditisimperativethattheyareobserved.

Beforeanyinspectionorrepairwork

•Readandobservethisrepairmanualandtheassociated
usermanual.

•Observetheminimumrequirementsforcarryingoutthe
work(see1.2Generalinformation,page4).

Personalsafetyequipment

Safetyshoes

Themobilitydevice,andsomeofitscomponents,arevery
heavy.Thesepartscanresultininjuriestothefeetifthey
areallowedtodrop.

•Wearstandardizedsafetyshoesduringallwork.

Eyeprotection

Itispossiblethatbatteryacidcanbedischargedwhen
workingondefectivebatteriesorwhenhandlingbatteries
improperly.

•Alwaysweareyeprotectionwhenworkingonany
defectiveorpossiblydefectivebatteries.

Safetygloves

Itispossiblethatbatteryacidcanbedischargedwhen
workingondefectivebatteriesorwhenhandlingbatteries
improperly.

•Alwayswearacid-proofsafetygloveswhenworkingon
anydefectiveorpossiblydefectivebatteries.

Generalsafetyinformationandinformationabouttting
/removal

DANGER!
RiskofDeath,SeriousInjury ,orDamage

Lightedcigarettesdroppedontoanupholstered
seatingsystemcancauseareresultingin
death,seriousinjury,ordamage.Mobilitydevice
occupantsareatparticularriskofdeathor
seriousinjuryfromtheseresandresultingfumes
becausetheymaynothavetheabilitytomove
awayfromthemobilitydevice.

–DONOTsmokewhileusingthismobilitydevice.

WARNING!
RiskofSeriousInjuryorDamage

Storingorusingthemobilitydevicenearopen
ameorcombustibleproductscanresultin
seriousinjuryordamage.

–Avoidstoringorusingthemobilitydevicenear

openameorcombustibleproducts.

CAUTION!
Riskofcrushing

Variouscomponentssuchasthedriveunit,
batteries,seatetcareveryheavy.Thisresultsin
injuryhazardstoyourhands.

–Notethehighweightofsomecomponents.

Thisappliesespeciallytotheremovalofdrive
units,batteriesandtheseat.

CAUTION!
Injuryhazardifthevehiclestartsmoving
unintentionallyduringrepairwork

–Switchthepowersupplyoff(ON/OFFkey).
–Engagethedrive.
–Beforeliftingup,securethevehiclebyusing

chockstoblockthewheels.

CAUTION!
Fireandburnhazardduetoelectricalshort-circuit

–Themobilitydevicemustbecompletely

switchedoffbeforeremovalofvoltage-carrying
components!T odothis,removethebatteries.

–Avoidshort-circuitingthecontactswhen

carryingoutmeasurementsonvoltage-carrying
components.

CAUTION!
Riskofburnsfromhotsurfacesonthemotor

–Allowthemotorstocooldownbefore

commencingworkonthem.

CAUTION!
Injuryhazardandriskofdamagetovehicledue
toimproperorincompletemaintenancework

–Useonlyundamagedtoolsingoodcondition.
–Somemovingpartsaremountedinsockets

withPTFEcoating(T eon™).Nevergrease
thesesockets!

–Neveruse"normal"nutsinsteadofself-locking

nuts.

–Alwaysusecorrectly-dimensionedwashersand

spacers.

–Whenreassembling,alwaysreplaceanycable

tieswhichwerecutduringdismantling.

–Aftercompletingyourwork/beforerenewed

start-upofthemobilitydevice,checkall
connectionsfortighttting.

–Aftercompletingyourwork/beforerenewed

start-upofthemobilitydevice,checkallparts
forcorrectlocking.

–Onlyoperatethevehiclewiththeapprovedtire

pressures(seetechnicaldata).

–Checkallelectricalcomponentsforcorrect

function.Notethatincorrectpolaritycanresult
indamagetotheelectronics.

–Alwayscarryoutatrialrunattheendofyour

work.

CAUTION!
Riskofinjuryanddamagetoproperty ,ifthe
maximumspeedreductiononawheelchairwith
alifterdoesnotfunctioncorrectly

Thewheelchair’scontrolunitmustreducethe
maximumpossiblespeedassoonasthelifteris
raised.

–T estthemaximumspeedreductionforcorrect

functionafteranymaintenanceworkor
modicationstothewheelchair .

1532486-L5

Invacare®TDX®SP2Series

CAUTION!
Anychangestothedriveprogramcanaffectthe
drivingcharacteristicsandthetippingstability
ofthevehicle

–Changestothedriveprogrammayonlybe

carriedoutbytrainedInvacarespecialist
dealers.

–Invacaresuppliesallmobilitydeviceswitha

standarddriveprogramex-works.Invacarecan
onlygiveawarrantyforsafevehicledriving
behavior-especiallytippingstability-forthis
standarddriveprogram.

Markallcurrentsettingsforthemobilitydevice
(seat,armrests,backrestetc.),andtheassociated
cableconnectingplugs,beforedismantling.This
makesreassemblyeasier .Allplugsarettedwith
mechanicalsafetydeviceswhichpreventreleaseof
theconnectingplugsduringoperation.T oreleasethe
connectingplugsthesafetydevicesmustbepressed
in.Whenreassemblingensurethatthesesafety
devicesarecorrectlyengaged.

61532486-L

3Hygiene

3.1Handlingofreturnedusedproducts

Whenreconditioningorrepairingreturnedmobilitydevices:

•T akeprecautionsforyourselfandtheproduct.

•Useprotectionequipmentasspeciedlocally.

Beforetransport(accordingtoBiologicalAgentsOrdinance)

Treatproductaccordingtofollowingprocesssteps:

Hygiene

Processstep

Component

ApplicationConditioningtechniqueWorkstation

ManualcleaningSurfaceofuseddeviceBeforerepairor

reconditioning

DisinfectionSurfaceofuseddeviceBeforerepairor

reconditioning

*Invacareusesdetergent"Nücoseptspecial"1.5%inwaterml/ml

Disinfectiontools

•Onewaywipes(eece)

•Brushestocleandifculttoaccessareas

Furtherinformation

FormoreinformationcontactyourInvacareServicedepartment.

Usesaturatedtowel
toapplycleaning
detergentandremove
residuesafterimpact.

Usesaturated
disinfectantwipes
andclean*thedevice
surface.

Cleaningand
disinfection

Cleaningand
disinfection

1532486-L

7

Invacare®TDX®SP2Series

4Setup

4.1Adjustingseatingposition

Adjustingtheseatingpositioninordertoadaptthemobility
deviceoptimallytotherequirementsoftheuser,we
recommendthatyouaskyourauthorisedInvacare®dealer
toadjustseatdepthindividually .Adaptingtheseattothe
user'sseatingpositiondependsontheseatthathasbeen
tted,andshouldbecarriedoutinthefollowingsequence.

1.Adjustingthelowerleglengthandseatdepth.See
chapter4.1.1Adjustinglowerleglength,page8.

2.Adjustingthecenterofgravityoftheseatframe.See
chapter4.1.3Adjustingcenterofgravityofseat,page8.

3.Checkingthattheswivelcastorscanmovefreely.

4.Repetitionofsteps2to4,ifnecessary.

WARNING!
Riskofinjuryaftertiltingofmobilitycaused
byblockedsteeringwheels

–Alwayschecktheseatdepthsettingsfor

bothforwardandreversemovement.Make
surethatsteeringwheelscanrotatefreely
andhavenotcontacttoanyxedmobility
devicecomponent.

B:Centerofgravityoftheseat/seatposition

SeatdepthAcanbeadjustedbymovingbackrestinrelation
toseatsurface.

Moduliteseat

Theseatdepthisadjustedbyshiftingthepositionofthe
backrest.SeeUserManual.

Seatsystems

Fordetailson

•Standardseat

•Flexseat

•Contourseat

•Maxseat

CAUTION!
Riskoftippingover

Anychangeintheseatingpositioncan
negativelyinuencethestabilityofthe
mobilitydevice.

–Alwaysmakesurethatthemobilitydevice

isstableandwillnottipover,after
adjustingseatingposition.

WARNING!
Anychangestothedriveprogramcanaffect
thedrivingcharacteristicsandthetipping
stabilityofthemobilitydevice

–Changestothedriveprogrammayonlybe

carriedoutbytrainedInvacare®providers.

–Invacare®suppliesallmobilitydevices

withastandarddriveprogramex-works.
Invacare®canonlygiveawarrantyforsafe
vehicledrivingbehavior-especiallythe
tippingstability-forthisstandarddrive
program.

WARNING!
Riskofcrushing

Theseatisveryheavy.Riskofinjurytohands
andfeet.

–Payattentiontothehandandfeet.
–Useproperliftingtechniques.

refertorevision11ofthisservicemanual.

FordetailsonModuliteseatseebelow.

4.1.3Adjustingcenterofgravityofseat

Thecenterofgravityofseat(CoG)canbeadjustedby
mountingseatframefarthertowardsfrontortherearof
seat.

CAUTION!
Theseatingsystemofthemobilitydeviceis
deliveredexworkswithastandardadjustment
ofcenterofgravity(CoG),whichmeets80–90%
ofuserrequirements.CoGcanbeadjusted
individually.However,anychangeinthis
adjustmentsettingcannegativelyinuencethe
stabilityofthepowerwheelchair.

–Youmustperformanindividualriskanalysis

everytimeyouchangethecenterofgravity
oftheseatingposition,inordertoensurethe
safetyandstabilityofthepowerwheelchair.

4.1.1Adjustinglowerleglength

Invacareoffersarangeoflegrestswhichcanbeadjusted
individually.Seeusermanual.

4.1.2Adjustingseatdepth

A:Seatdepth

B:Centerofgravityoftheseat/seatposition

A:Seatdepth

81532486-L

Setup

Theuserweightandseatdepthhavestrong
inuencesonthechoiceofthecenterofgravity
(CoG).Iftheuserisheavyandtheseatdepthis
greater ,thefocusshouldbethefartherback.For
bestpossibledrivingcharacteristicsofrear-wheel
drivewheelchairs,theweightshouldbedistributed:
30–40%frontand60-70%rear.Forcenterwheel
drivestheweightshouldbedistributed25%front,
50%centerand25%rear.

CAUTION!
Riskofdamageduetocollisionsofthelegrests
withotherpartsofthemobilitydevice

–Setthelegreststothesmallestanglebefore

adjustingtheseatcenterofgravity.

–Payattentionwithadjustingseatcenterof

gravitythatlegrestsdonottouchanyother
partsofwheelchair .Thisensuresthatthe
legrestscannotcollidewithotherpartsof
wheelchair.

1.Removeseatplateorslingseat(1),seechapter
“Adjustingseatwidth”inModuliteservicemanual.

2.LoosenAllenscrews(2)infrontandrear,leftandright
–DONOTremove.

3.Shiftpositionofseat.

4.Tightenscrews.

5.Installseatplateorslingseat.

Onepieceseatplate(TDXSP2/TDXSP2NB)

•6mmAllenkey

Seatsystems

Fordetailson

•Standardseat

•Flexseat

•Contourseat

•Maxseat

refertorevision11ofthisservicemanual.

FordetailsonModuliteseatseebelow.

4.1.4Moduliteseat

TheModuliteseatisavailableintwoversions:

•T elescopicseatframe(plateandstrap):Adjustmentof
centerofgravityviathelateralproles,asdescribed
belowin“Telescopicseatframe”.

•Onepieceseatplate:Adjustmentofcenterofgravity
viatheoblongholesoftheseatadapterasdescribed
belowinchapter“Onepieceseatplate”.

Telescopicseatframe

•6mmAllenkey

1.Removeseatplate(1)orslingseat.Seechapter
“Adjustingseatwidth”inModuliteservicemanual.

2.LoosenAllenscrews(2)and(3)infrontandrear ,left
andright–DONOTremove.

3.Shiftpositionofseatframe.

4.Tightenscrews.

5.Installseatplate.

Imperialtometricconversionchart

Youcanusethischartasanorientationtondtheright
toolsize.

IMPERIALMETRIC

inch

5/64

3/32

7/64

1/8

9/64

5/32

11/64

3/16

13/64

7/32

15/64

1/4

17/64

9/32

mm

1.9844

2.3813

2.7781

3.1750

3.5719

3.9688

4.3656

4.7625

5.1594

5.5563

5.9531

6.3500

6.7469

7.1438

1532486-L9

Invacare®TDX®SP2Series

IMPERIALMETRIC

inch

19/64

5/16

21/64

11/32

23/64

3/8

25/64

13/32

27/64

7/16

29/64

15/32

31/64

1/2

33/64

17/32

35/64

9/16

37/64

IMPERIALMETRIC

mm

7.5406

7.9375

8.3344

8.7313

9.1281

9.5250

9.9219

10.3188

10.7156

11.1125

11.5094

11.9063

12.3031

12.7000

13.0969

13.4938

13.8906

14.2875

14.6844

inch

19/32

39/64

5/8

41/64

21/32

43/64

11/16

45/64

23/32

47/64

3/4

49/64

25/32

51/64

13/16

53/64

27/32

55/64

7/8

mm

15.0813

15.4781

15.8750

16.2719

16.6688

17.0656

17.4625

17.8594

18.2563

18.6531

19.0500

19.4469

19.8438

20.2406

20.6375

21.0344

21.4313

21.8281

22.2250

101532486-L

Testing

5Testing

5.1Testingmotor

•Phillipsscrewdriversize2

•Digitalmultimeterwithresistancemeasurement

1.Removerearshroudasdescribedin6.6.2Removingrear
shroud,page30.

2.

Disconnectmotorplug(3)frompowermodule.

3.Connectdigitalmultimetertomotorplugcontacts(3)
andmeasureresistancebetweencontacts.

Aresistanceofbetween0.5and5ohmsindicates
amotorreadyforoperation.Aresistance
ofbetween15ohmsandinnityindicatesa
defectivemotor .Highresistancesarenormally
causedbybadconnectionsorworncarbon
brushes.

5.2Testingmotorbrake

Thistestshouldonlybecarriedoutonmobility
devicewithconventionalmotor/gearboxunits.

Adefectivemotorcandamagethepowermodule,
butnottheotherwayaround.

5.3Raintest

•Checktoensurethattheblackbatteryterminalcaps
aresecuredinplace,joystickbootisnottornor
crackedwherewatercanenterandthatallelectrical
connectionsaresecureatalltimes.

•Donotusethemobilitydeviceifthejoystickbootis
tornorcracked.Ifthejoystickbootbecomestornor
cracked,replaceimmediately.

5.4Fieldloadtest

Oldbatteriesloosetheirabilitytostoreandreleasepower
duetoincreasedinternalresistance.Inthisprocedure,
batteriesaretestedunderloadusingadigitalvoltmeterto
checkbatterychargelevelatthechargerconnector.The
chargerconnectorislocatedontheremote.Whenvoltage
attheoutputdrops1.0voltsunderload(2.0forapair),
replacethebatteries.

Readtheseinstructionscarefullyandthe
manufacturer’sinstructionsonthedigitalvoltmeter
beforeproceeding.

1.SwitchtheelectronicsOFFontheremote.

2.Makesurebatteryisfullycharged.Anextremely
dischargedbatterywillexhibitthesamesymptomsasa
badbattery.

3.Removethefootboard/legrestsfromthemobilitydevice.

4.

•Size2Phillipsscrewdriver

•Digitalmultimeterwithresistancemeasurement

1.Removerearshroudasdescribedin6.6.2Removingrear
shroud,page30.

2.

Pullmotorplug(3)outofpowermodule.

3.Connectdigitalmultimetertocentralmotorplug
contacts(3)andmeasureresistancebetweencontacts.

4.Ifthereisadefect,replacemotorandsendittoInvacare
Serviceforinspectionorrepair.

Aresistanceofbetween40and80ohms
indicatesanintactbrake.Aresistanceof0ohms
oraveryhighresistance(mega-ohmsorinnity)
indicatesashort-circuit,abadconnectionora
defectivebrake.

CAUTION!
Riskofdamagetopowermoduleduetoshorts
inmotorbrake

–NEVERconnectamotorbrakewithashortto

anintactpowermodule.

–Alwaysreplaceshortedbrakesimmediately.

Connectthevoltmeterleadstothechargerconnector
Aonthemobilitydevice.MostdigitalvoltmetersB
arenotaffectedbypolarity .However,analogmeters
(meterswithswingingneedles)canbeandshouldbe
usedcarefully .

Agoodmeterreadingshouldbe25.5to26VDC
withthechairinneutral.

WARNING!

–Whenperformingtheremainingsteps,ensure

yourfeetareclearfromcastersandwall,
otherwiseinjurymayresult.

5.Runthemobilitydeviceinneutralforatleast2minutes.

6.Sitinmobilitydeviceandplaceyourfeetagainstadoor
jam,workbenchorotherstationaryobject.

1532486-L

11

Invacare®TDX®SP2Series

7.Carefullypushtheremoteforward,tryingtodrivethe
mobilitydevicethroughthestationaryobject.Theload
shoulddrawbetween30to40ampsfromthebatteries
for0.3seconds.

Performingthisstepputsaheavyloadon
thebatteriesastheytrytopushthroughthe
stationaryobject.Ifthewheelsspin,havetwo
individuals(oneoneacharm)applyasmuch
downwardpressureaspossibleonthearmsof
themobilitydevice.

8.Readthemeterwhilethemotorsarestrainingto
determinethevoltageunderload.

Ifthevoltagedropsmorethan2voltsfroma
pairoffullychargedbatteriesduringthe0.3
seconds,theyshouldbereplacedregardlessof
theunloadedvoltages.

5.5CheckingBatteryChargeLevel

Thefollowing“Dos”and“Don’ts”areprovidedforyour
convenienceandsafety .

DON’TDO

Don’tperformany
installationormaintenance
withoutrstreadingthis
manual.

Don’tperforminstallation
ormaintenanceofbatteries
inanareathatcouldbe
damagedbybatteryspills.

Don’tmakeitahabitto
dischargebatteriestothe
lowestlevel.

Don’tusechargersor
batteriesthatarenot
appropriateforthechair .

Don’tputnewbatteriesinto
servicebeforecharging.

Don’ttiportiltbatteries.

Don’ttaponclampsand
terminalswithtools.

Readandunderstand
thismanualandany
serviceinformationthat
accompaniesabatteryand
chargerbeforeoperating
thepersonaltransporter .

Movethepersonal
transportertoaworkarea
beforecleaningterminals,
oropeningbatterybox.

Rechargeasfrequentlyas
possibletomaintainahigh
chargelevelandextend
batterylife.

Followrecommendationsin
thismanualwhenselecting
abatteryorcharger.

Fullychargeanewbattery
beforeusing.

Useacarryingstrapto
remove,moveorinstalla
battery.

Pushbatteryclampsonthe
terminals.Spreadclamps
widerifnecessary.

12

1532486-L

Service

6Service

6.1Tighteningtorques

CAUTION!
Damagecanbecausedtothemobilitydevice
duetoimproperlytightenedscrews,nutsor
plasticconnections.

–Alwaystightenscrews,nutsetctothestated

tighteningtorque.

–Onlytightenscrewsornutswhicharenotlisted

herengertight.

Thetighteningtorquesstatedinthefollowinglistarebased
onthethreaddiameterforthenutsandboltsforwhichno
specicvalueshavebeendetermined.Allvaluesassume
dryandde-greasedthreads.

ThreadTighteningtorquein

Nm±10%

M43Nm

M5

M610Nm

M825Nm

M1049Nm

M1280Nm

M14120Nm

M16180Nm

6Nm

Underneathseat

BatteriesbehindfrontshroudA

Fig.6-1

PowermodulebehindrearshroudA

Fig.6-2

Actuatormodules

UNCThreadTighteningtorquein

Nm±10%

1/4”-20

5/16”-20

3/8”-16

7/16”-14

1/2”-13

9/16”-12

5/8”-11

3/4”-1

7/6”-9

1”-8

11–7Nm

22–14Nm

41–25Nm

67–40Nm

100–60Nm

150–90Nm

210–130Nm

370–230Nm

600–370Nm

900–550Nm

6.2Overviewmobilitydevice

ThisoverviewappliesforTDXSP2mobilitydeviceswith
ModuliteSeat.

Tiltactuator(optional)A

Actuatormodule(optional)B

Lifteractuator(optional)C

Fig.6-3

Lifter

ACTwithLifter

1532486-L13

Invacare®TDX®SP2Series

locatedundertheseat.

Centermountpoweredlegrestsandtiltmodule

G-Trac®Sensor

TheoptionalG-Trac-sensorislocatedbehindtherearshroud.

6.3Chassis

6.3.1Stabilitylock

Replacinggascylinder

CAUTION!
Riskofcrushing

Mobilitydeviceisveryheavy.Injuryhazardto
handsandfeet.

–Useproperliftingtechniques.

Riskofinjurybyuncontrolledmovementof
mobilitydevice

–Switchpowersupplyoff(ON/OFFkey).
–Engagedrive.
–Beforeraisingmobilitydevice,securewheelsby

blockingthemwithwedges.

3.

Fig.6-4

LoosenandremovehandscrewAunderrearlightB
nearwheelD.

4.

Removinggascylinder

•3/16”Allenkey

•5/16“wrenchwithextension

•3/4”wrench

•5/32“Allenkey

•7/16”socketwrench

•Phillipsscrewdriversize2

•T orquewrench5-25Nm(orsimilar)

•Twolongwoodenblocks,min.14x14x30cm

•Threadlockingadhesive,forexampleLoctite242

Fig.6-5

Ifmobilitydeviceisttedwithcableties,remove.
Wheninstalling,makesuretoreplacecableties.

LoosenandremovescrewA.

5.

1.Liftmobilitydeviceupononesideandplacea14cm
highwoodenblockunderbatterycasesothatwheels
areoffthegroundandcanrotatefreely.Useproper
liftingtechniques.

2.Repeatsameprocedureonothersideofmobilitydevice.

14

LoosenandremovescrewAovermudguardBunder
seatframeC.

6.Removebatteriesasdescribedin6.7.6Replacing

batteries,page33and6.7.9Replacingbatteries/replacing
batterycables,page35.

7.Removedrivewheelasdescribedin6.5.6Replacing
drivewheel,page26.

1532486-L

Service

8.

Fig.6-6

LoosenscrewsBnearhubAandcastorDthatx
lowerbeamCtochassis.

Wheninstalling,usethreadlockingadhesive,for
example,Loctite242.

9.

10.

Fig.6-7

RemovenutConupperbeamB,DonmudguardA.
Holdscrewinplace.

11.

RotatetopwalkingbeamEsothatyoucanreachthe
screwDonthegascylinderthroughthedrillholeC
inbatterybox.

RemovenutF.Holdscrewinplace.

12.PushscrewDtowardsbatteryboxsothatgascylinder
Aisseparatedfromwalkingbeam.

13.Pushgascylinderagainstbatterybox.

14.Raiserearaxlesothatgascylinderisactivatedandthen
retractcylinder.

15.Pushgascylindertotherearandpullitoffbatterybox.

Installinggascylinder

1.Installpartsinreverseorder .

Replacingsettingscrew

•1/4“wrench

•Twolongwoodenblocks,min.14x14x30cm

•Feelergaugewith2mm

1532486-L15

Invacare®TDX®SP2Series

1.ScrewnewsettingscrewDintoholderC.

2.

Invacarerecommendsalwaysreplacingbothsetting
screwssimultaneouslytoensurethatthemobility
deviceworksperfectly.

Removingsettingscrew

1.Liftthemobilitydeviceupononesideandplacea14
cmhighwoodenblockunderthebatterycasesothat
thewheelsareoffthegroundandcanrotatefreely.Use
properliftingtechniques.

2.Repeatsameprocedureonothersideofmobilitydevice.

3.Removebothanti-tipsystemprotectivecaps.The
protectivecapsonanti-tipsystemwilleitherbeheld
usingascreworacabletiedependingonthemobility
device'sdateofmanufacture.

4.

InserttwoscrewsBtogetherwithwashersC.

3.Tightenscrews.

4.Removewoodenblockfromundermobilitydevice,so
thatallcastersareincontactwithoor .

5.

RotatesettingscrewCuntilthereisaspaceof2mm
(1)betweenitandthegascylinderD.

6.InstalllocknutBandtighten.

7.Installtwoprotectivecaps.

Adjustingsettingscrew

•1/4“wrench

•Feelergaugewith2.0mm

LoosentwoscrewsBandremovetogetherwithwashers
C.

5.LoosenandremovelocknutBofsettingscrewD.

6.RotatesettingscrewDtowardsbatterycaseuntilyou
canremoveitfromitsholderC.

Installingsettingscrew

•1/4”wrench

•Feelergaugewith2mm

1.Removebothprotectivecapsofstabilitylocksystem.
Theyareheldusingascreworacabletiedependingon
themobilitydevice’ sdateofmanufacture.

2.Ensurethatmobilitydeviceiscontactingoorwithall
itswheelsandcasters.

3.LoosenandremovelocknutB.

4.RotatesettingscrewCuntilthereisaspaceof2.0mm
(1)betweenitandgascylinderD.

5.InstalllocknutBandtighten.

6.Repeatforothersettingscrew.

7.Installtwoprotectivecaps.

161532486-L