SGS HKE Product guide

Operating Manual and Test Log
Pit lift
HKE / FKE
Lifting capacity 10 t, 14 t, 20 t
SOMMERER PIT LIFT

Important:
• Releasehandbrakesothatthevehiclecanroll.
►When working under lifts with drive-on rails, always observe the
shift in center of gravity when lifting axles or body parts. When the
counterweight of the axle is not on the rail, the lifting platform can
become overloaded or the stability can be reduced.
• Disconnecttheliftfromthepowersupplyatnight.
Notes:

Content page
Data Sheet 4
Test Log 5
1. SAFETY REGULATIONS 6
1.1. Introduction 6
1.2. Application areas of the SOMMERER pit lifts 6
1.3. Notes for compliance with the operation manual 6
1.4. Operation of the site operator 7
1.5. Hazards handling the pit lifts 7
1.6. Organisationals methods 8
1.7. Maintenance tasks, fault clearance, disposal 9
1.8. Specichazards 9
1.9. Safety regulations 10
2. DESCRIPTION 11
2.1. Utilization and application 11
2.2. Description of design and functions 11
2.3. Transport 12
3. INSTALLATION 12
3.1. General 12
3.2. Setup and installation location HKE 12
3.3. Bleeding 13
3.4. Setup and installation location FKE 14
3.5 Electrical connection 14
4. OPERATION 15
4.1 Lifting loads 16
4.2 Lowering loads 16
4.3 Load bearing devices and support bridges 17
4.4 Instructions for use 17
5. MAINTENANCE 18
5.1. Special instructions 18
5.2. Maintenance 18
5.3. Oil level check 19
6. MALFUNCTIONS 19
6.1. General 18
6.2. Troubleshooting 20
6.3. Replacement equipment and repair 20
7. WARRANTY 21
8. ELECTRICAL- AND HYDRAULIC DIAGRAM 22
8.1. Electrical Diagram HKE/FKE 400 V (Standard) 22
8.2 Electrical Diagram HKE/FKE 240 V 23
8.3 Pit lift control 23
9. HYDRAULIC DIAGRAM HKE/FKE 24
10. REPLACEMENT PARTS LIST 25
11. EC-DECLARATION OF CONFORMITY 26

4
Pit lift model:
Lifting capacity:
Year of manufacture:
Factory no.:
HKE/FKE HKE/FKE HKE/FKE HKE/FKE
Liftingcapacity 10t 14t 16t 20t
Max.hydr.operating
pressure
160bar 220bar 205bar 255bar
Electricalconnection
3kW,16A
400V 400V 400V 400V
Loweringspeed:max.0,15m/s
Stroke:800mm
Controller:electrohydraulic
Commissioning log:
Theliftwasinstalledandcommissionedinaccordancewiththe
instructionson______________
________________________________
Place/Date
_________________________________
Expert
Nameofexpert Address
Decienciesnoted Date/Siteoperator
Decienciescorrected Date/Signature
Data Sheet

5
Date of
inspec-
tion
No defects/
defects to
be correc-
ted
Yes/no
Decien-
cy cor-
rected
Yes/no
Deci-
ency
corrected
Name, address,
occupation,
employer of
expert
Conrmati-
on of site
operator
Test Log
Thispitliftwassubjectedtoaregularinspectiononthespecieddate
inaccordancewiththeregulationsoftheGermanBGG945/BGR500
andtheMachineryDirective.2006/42/EC

6
1. Safety regulations
1.1. Introduction
SOMMERERpitliftsarearesultofmanyyearsofexperience.Thehigh
qualitystandardandthesuperiordesignguaranteereliability,longser-
vicelifeandefcientoperation.Youshouldreadthisoperatingmanual
attentivelyandalwaysobservethecontentstopreventunnecessary
damageandhazards.Thisoperatingmanualisapplicablebothforrail-
mountedpitliftsaswellasforfreelymovablelifts.
1.2. Application areas of the SOMMERER pit lifts
SOMMERER pit lifts are only permitted to be used for partial lifting
of vehicles with support afterwards and/or for lifting and lowering
vehicle parts (e.g. engines, gearboxes etc.). In doing so, the load
must not exceed the maximum permitted load capacity of the pit
lift.
Important: Any other or use beyond the described purpose is
deemed as unintended use.
ERICHSOMMERERGMBHshallnotbeliablefordamagearisingfrom
this.Theriskforthisshallbebornesolelybytheuser.Intendeduse
alsoincludes:
• compliancewithallinstructionsinthisoperatingmanual
• compliancewiththeinspectionandservicingworkandthespecied
tests.
1.3. Notes for compliance with the operating manual
• Thebasicrequirementforsafehandlingandtrouble-freeoperation
ofthepitliftistheknowledgeofthebasicsafetyinstructionsand
safetyregulations.
• Theoperatingmanualmustbeobservedbyallpersonswhoworkon
thepitlift.ThisparticularlyappliesforChapter1.8SpecicHazards.
• Theapplicablerulesandregulationsfortheoperatingsitemust
beobservedinadditiontothesafetyinstructionsintheoperating
manual.

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1.4. Obligation of the site operator
Thesiteoperatorisobligedtoonlyallowpersonstoworkonthesystem
who
• arefamiliarwiththebasicregulationsforoccupationalhealthand
safetyandaccidentpreventionandwhohavebeeninstructedabout
handlingthesystem.
• havereadandunderstoodthesafetychapterandwarningsand
haveconrmedthiswiththeirsignature.
1.5. Hazards handling the pit lift
TheSOMMERERpitliftshavebeendesignedandconstructedaccor-
dingtothestateoftheartandtherecognisedsafetyregulations.Ne-
vertheless,unintendedusemayendangerlifeandlimboftheoperator
ordamageproperty.Thepitliftisonlypermittedtobeused:
• fortheintendeduse
• insafe,faultlesscondition
► Faultswhichcanadverselyaffectsafetymustberectiedimmediately.
• Onlyputthepitliftinmotioniftherearenopersonsinthedanger
area.
• Themovementrangeofthepitliftmustbekeptclear.
• Nopersonsarepermittedtobepresentinthemovementrangeof
thepitlift.
• Themaximumpermittedloadcapacityofthepitliftmustnotbe
exceeded.
• Climbingonthepitlift,ridingonitandclimbingontheloadare
forbidden!
• Onlyloadliftcentrally,liftvehicleandcheckthesafevehiclesupport;
donotlifttotherequiredheightuntilthen
• Securethevehicleagainstrollingaway.

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• Maketheliftingandloweringmovementsevenly.Monitortheload
duringthemovement.
• Pit lifts and transmission lifts are not suitable for holding loads over
an extended period. Therefore, the raised load must be secured using
support bridges or support blocks.
1.6. Organisational measures
• Theoperatingmanualmustalwaysbekeptreadytohandatthe
operatingsiteofthepitlift.
• Inadditiontotheoperatinginstructions,observeandenforcethege-
nerallyapplicablestatutoryandotherbindingregulationsconcerning
accidentpreventionandenvironmentalprotection.
• Checkatleastoccasionallythesafetyandrisk-consciousworkof
thepersonnelandcompliancewiththeoperatinginstructions.
• Usepersonalprotectiveequipmentifnecessaryorrequiredbyregu-
lations.
• Observeallsafetyinstructionsanddangerwarningsonthepitlift.
• Allsafetyinstructionsanddangerwarningsonthepitliftmustbe
maintainedinlegiblecondition.
• Donotmakeanychanges,attachmentstoandmodicationsofthe
pitliftwhichcouldaffectsafetywithoutthepermissionofthemanu-
facturer.Thisparticularlyappliesforweldingonload-bearingparts.
• Sparepartsmustcomplywiththetechnicalrequirementsspecied
bythemanufacturer.Thisisonlyguaranteedfororiginalparts.
• Complywithlegaldeadlinesorthosespeciedintheoperatingma-
nualforrecurringtests/inspections.
►In the event of malfunctions, shut down the pit lift immediately and
secureagainstrestarting.Havefaultsrectiedimmediately.

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1.7. Maintenance tasks, fault clearance, disposal
• Complywiththeadjustmentandmaintenancework,inspectionsand
datesincludinginformationaboutthereplacementofparts/individual
componentsspeciedintheoperatingmanual.Theseactivitiesmust
onlybeperformedbyqualiedpersonnel.
• Alwaystightenscrewconnectionswhichhavebeenundoneorloo-
senedduringmaintenanceandrepairwork.
• Arrangesafeandenvironmentallysounddisposalofoperatingand
auxiliarymaterials(hydraulicoil)andexchangeparts.
1.8. Specichazards
Hydraulics, pneumatics
• Workonhydraulicequipmentmustonlybeperformedbypersons
withknowledgeandexperienceofhydraulics.
• Checkalllines,hosesandscrewconnectionsregularlyforleaksand
externallyrecognisabledamage.Rectifyanydamageimmediately.
Squirtingoilcanresultininjuriesandre.
• Depressurisepressurelinestobeopened(hydraulics,compressed
air)beforestartingrepairwork.
►Lay and mount hydraulic and compressed air lines properly. Do not
mix up connections. Fittings, length and quality of the hose lines must
comply with the requirements.
Oils, grease and other chemical substances
Observetheapplicablesafetyregulationsfortheproductwhenhand-
lingoils,greasesandotherchemicalsubstances.

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1.9. Safety regulations
Applied safety regulations
The following standards were implemented in the design:
• ThesafetydevicescomplywithEN1494:2009-5
• Theliftcomplieswiththesafetyregulationsofthefollowingdirecti-
ves:2006/42ECMachineryDirective..
• TheCEDeclarationofConformityispartofthisoperatingmanual.
Observe the following during operation:
• Theaccidentpreventionregulationsofyourcountryapply
• 89/391/EECSafetyandhealthprotectionofemployees
• 89/654/EECSafetyandhealthprotectioninworkfacilities.
• 89/655/EECSafetyandhealthprotectionwhenusingworkequip-
ment
• 89/656/EECSafetyandhealthprotectionwhenusingpersonalpro-
tectiveequipment
• 92/58/EECSafetyand/orhealthlabelingintheworkplace
Applied safety standards
• ENISO12100-1:2003/DINEN294/prEN349/EN414/EN418/
prEN811/EN50099/EN60204/ISO1219/ISO/DIS11530
►EU-Directives are available: DITR German Information Centre for
Technical Regulations in DIN e.V., Berlin

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2. Description
2.1. Utilization and application
Thepitliftisdesignedexclusivelyfortheverticalliftingofmotor
vehiclesoverassemblypits,withamax.axleloadcorrespondingtothe
max.liftingcapacityofthelift.
Theliftmustbecommissionedbyacompetentandtrainedperson.The
designoftheliftmaynotbemodiedinanyway.
Theloadraisedusingtheliftmustbesupportedusingsuitablesupport
systems.ERICHSOMMERERGmbHalsoprovidesthesesupport
systems.
►For FKE-FV: When working under lifts with drive-on rails, always
observe the shift in center of gravity when lifting axles or body parts.
When the counterweight of the axle is not on the rail, the lifting
platform can become overloaded or the stability can be reduced.
►Always comply with the detailed operating and maintenance
instructions.
2.2. Description of design and functions
Theseelectrohydraulicpitliftsaredesignedforliftingmotorvehicles
aboveassemblypits.Thepitliftcanbemovedlengthwaysandcross-
waysinthepit.
ThepitliftHKEconsistsessentiallyofasupportingplatewithaxles
andrunningrollers.Theliftingcylinderisweldedtothemidpointofthe
supportingplate.Abaseplateisweldedunderneaththeliftingcylinder.
AtFKE,thebaseplateisconnectedtothechassis.Thecontrolisper-
formedusinganUPpushbuttoninstalledontheliftandanUP-DOWN
buttonloweringvalve.
Thepistonrodandguidearebuiltintotheliftingcylinder.Atthetop,the
pistonrodhasaholedrilledtotakeholdingdevices.Anattachedsup-
portplateservesastheloadbearingdevice.Othersuitablesupports
canbeattachedforspecialloadapplicationpointsonvehicles(see
accessories).
Thehydraulicaggregateislocatedattherearofthecylinder.Forvehic-
lesthathavetobeliftedattwopoints,attachablecrossmembersmust
beused(seeaccessories:axlecrossbeams,supportsystems).

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2.3. Transport
Thepitliftcanbetransportedstandingorlying.Theoilllingnozzle
withintegratedoildipstickisreplacedduringtransportbyatightly
sealingstopper.Thisstoppermustbereplacedbytheoilllingnozzle-
beforecommissioning
3. Installation
3.1. General
l
Thepitliftshouldbeinstalledbythemanufacturer’sorthesales
company‘strainedinstallers.Ifthesiteoperatorhassufcientlytrained
installers(experts),thepitliftcanalsobeinstalledbythem.
Thecorrectinstallationandcommissioningmustbeinspectedbyan
expertandconrmedinthecommissioninglogonpage4.
3.2. Setup and installation location HKE
Adjustable chassis:
• Thechassisissuitedforaspacingof860to1,000mmbetweenthe
runningrails.
• Theupto14,5tadjustablerolleraxlesmustbesetsothatthedis-
tancebetweentherollercollarandtherunningrailsisnomorethan
10mm.
• Pushthechassisoncealongtheentirelengthofthepittoensure
this.
• Thedistancefromtherollercollartothepitrunningrailmustnot
exceed10mmatanypoint!
• Inthisposition,theM10safetyboltsmustbedrilled.Todothis,rst
tightentheboltssothatthetipoftheboltpressesintotheaxle.
• Thendrilltheaxlewithan8mmdrillbit.Securethesafetyboltswith
locknutsaftertightening.

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Welded chassis (from 16 t or on request):
• Thechassiswasmanufacturedaccordingtoyourpitsize;theroller
collarmustmakecontactwiththerunningrail.
• Hereagain,themaximumdistancebetweentherollercollarandthe
runningrailmustnotexceed10mm.
►In general, the following applies to both the adjustable and the welded
chassis
• Thestandardrunningrollersareauthorizedonlyforattoslightly
conicalcontact;theymayneedtobeadaptedbyre-turningtomore
tiltedrunningrails.Foranextrachargewewillprovidethecorres-
pondingrollers(sketchrequired!).
• It is not permitted to extend the rollers to compensate for misalign-
ment.
• Itmaybenecessarytostraightenthepitbyweldingincompensating
proles.Protrudingconcrete,interferingpipingorwiring,etc.must
beremoved.
• Suspendtheliftinthechassis;mountthelockingbracketaccording
totheinstructions.
3.3. Bleeding
• Ifthelift(hydraulicunit)hasdrawninairduetooilleveltoolow,oil
mustbelledintheheadplateattheoilnozzlewhenthepistonrod
islowered.
• Extendliftcompletelyandll0.1lofhydraulicoilattheunit.
• Openthebleedscrewontherightoftheheadplateby3turns,
• Moveliftcompletelytothetop(againststop)andkeeprunninguntil
onlyoilstilldischarges.
• Closebleedscrew.
• Lowerliftcompletely;ifnecessarypresspistonrodcompletelytothe
bottombyhand.Indoingso,excessoilmaydischargeattheunit.

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• Checkoillevelmonitoringonthelift.Repeattheprocedureifneces-
sary.
3.4. Setup and installation location for FKE
Dependingonthemodel,thepitliftisguidedonthepitoorinor
onrunningrails,oritisfreelymovableontheoorofthepit.
Chassis model Z
ModelZhasachassisthatrunsontheoorinU-proles,L-prolesora
atsteelplateinstalledatthesite(preferablyU100).Theprolesmust
bealignedexactlyparallel,towithin10mm.Toinstalltherollers,open
theU-proleatasuitablelocation.
Thepitliftisalsofreelymovablecrosswiseinthechassis.
► Important!BeforeinsertingthechassisandliftintheU-prole,they
must be secured so that they cannot move.
Chassis model F
TheFmodelhasachassiswhichrunsalongtheoor,similartotheZ
model.Aatsteelplatecanbeusedfortherunningsurface.Therollers
oftheliftthenrunontheatsteel.Thischassiscanbeguidedlaterally
inthepitbymeansofadjustablespacerrollers.
Chassis model FV
Thechassisofthisliftisfreelymovableupto1,000kgonsteering
rollers.Loadsexceeding1,000kgpushdownonthesprings,sothat
theframeisontheoor.Theliftisboltedsolidlytothemidpoint.The
runningrollersoftheliftthenrundirectlyontheoorofthepit.Theoor
mustbesuitableforthispurpose,i.e.level,solidandclean.
Chassis model FV-Q
AchassismodelFV.Inadditiontheliftcanalsobemovedcrossways
onitschassis.Undernormalconditions,theliftiscompletelystable.
Sincethechassisisnotsecuredontheooragainsttipping,youshould
beawareoftheresultingdangers.Extremesideloadingonaliftthat
canbemovedlaterallycanresultinadditionaltippingmoments.There-
fore,sideloadingshouldalwaysbeavoided.
3.5. Electrical connection
Thepitliftmaybeconnectedonlytoa3-phase400Vsupplywith3x16
Afuses.Afterconnection,runthemotorjustbriey.Ifthepumpdoes
notsupplyoil(thepistonroddoesnotextend),then2phasesmust

15
beswappedwitheachother.Ifaconnectioncable,otherthantheone
whichissupplied,isusedforthelift,itisessentialtouseanH07RNF
castrubbercable.
Checksupplylinefordamageandreplaceimmediatelyifnecessary.
Theliftisalsoavailablefor240Vmainspower.Specialcircuitdiagrams
mustbeobservedhere.Cableswithlargecrosssectionarerequired.
4. Operation
Therespectiveapplicableaccidentpreventionregulationsmustbe
compliedwith.
• Thepitliftisonlypermittedtobeoperatedbytrainedpersonnel.
• Onlyputthepitliftinmotionifthereisnodangertopersons.
• Themovementrangeofthepitliftmustbekeptclearandnoper-
sonsarepermittedtobeinthemovementrange.
• Themaximumpermittedloadcapacityofthepitliftmustnotbe
exceeded.
• Climbingonthepitlift,ridingonitandclimbingontheloadare
forbidden.
• Onlyloadliftcentrally,liftvehicleandcheckthesafevehiclesupport;
donotlifttotherequiredheightuntilthen.
• Ensurethatloadiscentered!Holdnon-centeredloadswithcross
members(2-pointsupport).
• Theloadbearingdevicemustbecentredontheload.Watchoutfor
theshiftincentreofgravityduringlifting.
• Maketheliftingandloweringmovementsevenly.Monitortheload
duringthemovement.
• Theraisedloadmustbesupportedwithsupportbridgesorsupport
blocks.
• Enginesmustbesecuredreliablyagainstslipping,slidingandtilting

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ontheloadbearingdevice.
• Movingtheliftunderloadisonlypermittedifspecialsafetymeasu-
resareobserved.
• Attachedequipment(e.g.gearboxplates)forengineandgearbox
installationandremovalmustnotbepivotedortiltedsothatthe
structuralstabilityisreduced.Thismeans:allloadstobeliftedare
centeredandevenlydistributed.
4.1. Lifting loads
• Beforeusingtheliftforavehicle,releasethehandbrakeandshift
thetransmissiontoneutral.
• Attachliftinggearateven,load-bearingpointswhicharespecied
bythevehiclemanufacturer.
• Theloadbearingdevicemustbecenteredontheload.Watchout
fortheshiftincentreofgravityduringlifting.
• Youmustkeepthemovementareaofthevehiclefree,andkeepthe
vehiclebeingmovedunderobservation.
• Itisforbiddenforanyonetoentertheareaofmovement.
• Intheeventofmalfunctions,shutdowntheunitimmediatelyand
notifysupervisor/servicedepartment.
• AlwaysobservetheapplicableregulationsEN1494:2009-5/BGG
945/BGR500
• Toraiseorlower,presstheappropriatepushbutton.orloweringvalve
4.2. Lowering loads
►Make lowering movements slowly and evenly. Monitor the load during
the movement.
• Monitortheloadduringthemovement.

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• Removerollingawayprotection(wheelchocks).
• Raisevehicleslightlyandremovesupportbridges.
• Onlyopenthethreadedspindleaverylittleforloweringtheload.
• Theloweringspeediscontinuouslycontrolledbyturningthethrea-
dedspindleanticlockwise.
• Turnthethreadedspindleasfarasthestopforfurtherlowering
withoutload.
4.3. Load bearing devices and support bridges
Variousloadbearingdevicesareavailableforliftingvehiclesandvehic-
leparts.Theseincludesupportplates,crossmembers,gearboxplates,
specialmountingsandextensions.
Liftedvehiclesmustbesecuredwithsupportbridgesorsupportblocks.
Supportbridgesarealwaysmanufacturedtothepitdimensions.Their
securesupportmustbeguaranteedoverthecompletelengthofthepit.
4.4. Instructions for use
Themanualforcesforstartingtheunloadedpitliftareatmost300N,
andtheforcesrequiredtomaintainthemotionaremax.200N.Ifthese
forcesareexceeded,e.g.becauseofaroughrunway,thenasecond
personmustassist.
• Neverexceedthemaximumpermittedloadcapacityoftheload
bearingdevices.
• Irrespectiveoftheloadbearingdevice,theloadcentreofgravity
mustalwaysbepreciselycentralabovethepitlift.
• Onlyuseloadbearingdeviceswithappropriatestuds.
• Donotstackextensionpieces.
• Transportofvehiclesonthepitliftisnotpermittedwhentheliftis
completelyloweredandifthepartshavebeensecuredwithstraps
orchains.

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• Attachallloadbearingdevicesdirectlytothepistonrod.
• Donotuseanystrokeextensionbetweenliftandliftinggear(cross
member,gearboxplateetc.).
• Theliftsarenotsuitableforuseincarwashsystems;ifusedthere,
theymustbesuitablycoveredandprotectedtopreventdamage
fromthehighhumidity.Thewarrantydoesnotcoverrust!Residue
fromunderbodysealingcompoundswilldestroytheseals.
• Duetothecornerloadofthesupportingplates,damagetotheoor
cannotberuledout.Coveringwithtilesisonlyappropriatewhenthe
oorisverylevel.
• Undernormaloperatingconditions,thisuniversalliftingdeviceis
completelystable.Sincethechassisisnotsecuredagainsttipping
ontheoor,youshouldbeawareofthepossibledangers.Therefo-
re,sideloadingshouldalwaysbeavoided.
5. MAINTENANCE
5.1. Special instructions
OriginalSOMMERERPITLIFTSrequireminimalmaintenance.Itis
importantthatthepistonrodbekeptclean.Damagemustbe
immediatelypolishedoutwithagentletransition.Whenworkingwith
stronglyadheringunderbodycompounds(underbodyprotection,wax
etc.)thepistonrodmustbefullycoveredor-beforeloweringthelift-
cleaned
Suchcompoundsgumuptheupperdirtandwaterwiperring,which
thennolongerfunctionsproperly.
►Do not clean pit lifts with high-pressure or steam cleaners,
since cleaning agents can penetrate the valves and cause
malfunctions.
5.2. Maintenance
Thepistonrod,studsoftheloadcarryingdevice,runningrollersand
othermovingpartsmustalwaysbelightlyoiled.

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Everytimethatitisretracted,thepistonrodpassescompletelythrough
theplungersystemintothehydraulicoil,andistherebyautomatically
lubricatedandprotectedagainstcorrosion.
Thehydraulicoilmustbechangedafternomorethansixyearsof
operation.TheinitialllatthefactoryiswithBPHLPHM35.
Acomparableoilcanbeusedwhenchangingtheoil.
5.3. Oil level check
Important for oil level check
►Disconnect the pit lift from the compressed air network!
►Check oil only when unit is not under pressure
►Check oil only when lift is not in motion.
►Ensure absolute cleaniness
► Useonlylteredhydraulicoil
►Check oil level at least once per month.
Bleeding
Thepitliftissuppliedlledwithoil,andhasbeenbled.If,afteran
extended period of operation or after an oil change, the piston rod
extends jerkily, then the bleed screw underneath the head plate
on the cylinder should be opened until oil escapes.
6. Malfunctions
6.1. General
• Quiteoftentheproblemsthatcauseamalfunctionareminor.Lo-
catingthecauseofamalfunctionisalmostalwaysthemosttime-
consumingtaskintroubleshooting.Asanautomotiveexpert,you
cancarryoutnearlyalltroubleshootingtasksyourself,inorderto
savemoney.
• Beforeshipping,everyliftissubjectedtoseveralprecisefunction
testsunderoperatingconditionswithanexcessiveload.Inaddition,
asealcheckandcompletenesscheckarecarriedout.
However,ifpartsaremissingatthetimeofdelivery,orifmalfunctions
occurduringcommissioning,theninourdailyexperiencethecauseis
inmostcasesbeyondourcontrol.

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6.2. Troubleshooting
a) Lift does not pump or will not hold a load
• Insufcientoilpossiblylostduringtransport.Addlow-viscosity
hydraulicoil(HLP35)asfarastheuppermarkonthedipstick.Ram
mustbefullyinstartingposition!
• Checkthenon-returnvalveonthecylinder.Removeanydirtthat
maybepresent,orreplacethevalve.
Iftheserstpointsarecorrect,thenthegrooveringintheguidemust
bedefective.Thisgenerallydoesnotoccuruntilafteratleastfour
years.Inthiscase,theliftmustbeoverhauled.
Removaloftheguide:Disconnectthepitliftfromthepowersupply.
Unscrewtheguideusingasuitabletool.Thepistonrodcanremainin
thelift.Afterinstallation,bleedthelift;seepage13.
b) Oil loss on the piston rod
• Resealtheguide,replacethewiperringandthegroovering
c) Oil loss on the lifting or lowering spindle
• Replaceseals;lubricateallslidingpartswithMolykote.
6.3. Replacement equipment and repairs
Smallrepairscanbecarriedoutbythecustomer,assumingtechnical
competence.Replacementpartssetsareavailable.
Pleasenotethefollowingwhenorderingreplacementparts:Inaddition
totheitemnumberfromthereplacementpartslist,youmustspecifythe
modelandloadcapacity(fromthedatasheet),oralternativelythemain
dimensionsofthepistonrod,theliftheight,andtheyearofmanufac-
ture.
Intheeventofmajorrepairs,andafter4to5yearsatthelatest,thelift
shouldundergothoroughmaintenanceandoverhaul,forsafetyrea-
sons.
Wewillrepairyourequipmentwithinafewdays,withafullfactory
warranty.Replacementequipmentisavailableforcommonmodelsand
loadcapacities