Hurst Jaws Of Life eDRAULIC SC 250 E2 User manual

Instruction manual for rescue equipment
273023085 EN
(Original instruction manual)
replaces 10.2016
Edition 02.2017
eDRAULIC combi tools
SC 250 E2
SC 358 E2
SC 757 E2

2
Content Page
1. Dangerclassications 4
2. Productsafety 5
3. Intendeduse 8
4. Functionaldescription 10
4.1 Description 10
4.2 Structure of rescue devices 11
4.3 Hydraulic circuit diagram 12
4.4 Operating movement controls 12
5. Operation 12
5.1 Battery or power supply for eDRAULIC device 12
5.2 Operating the star grip 13
6. Cutting,spreading,pulling,squeezing 14
6.1 Safety notes 14
6.2 Cutting 15
6.3 Spreading 17
6.4 Pulling 18
6.5 Squeezing 22
7. Dismantlingtheequipment/deactivationfollowingoperation 23
8. Maintenanceandservice 23
8.1 eDRAULIC combination tools 24
8.2 Protective equipment 25
 8.3 Checkingthelterinthebatteryshaft 25
9. Repairs 26
9.1 General information 26
9.2 Preventive service 27
9.3 Repairs 27

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10.Troubleshooting 34
11.Technicaldata 36
11.1 eDRAULIC combination device 37
11.2 Noise emission (based on standard EN ISO 3744) 39
11.3 Operating and storage temperature ranges 39
11.4 Oscillation / vibration 39
11.5 Torques for central bolts 39
11.6 Cutting performance 40
12.Accessories 41
12.1 Batteries 41
12.2 Battery charger 42
12.3 Power supply 42
12.4 Chain sets 43
13.Instructionsregardingdisposal 43
14.Notes 43
Content Page

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 Wearahelmetwithafaceguard.
 Wearprotectivegloves.
 Wearsafetyshoes
 Properrecycling
 Protecttheenvironment
 Readandfollowtheoperatinginstructions.
Wedi󰀨erentiatebetweenvariousdi󰀨erentcategoriesofsafetyinstructions.Thetableshown
belowprovidesanoverviewoftheassignmentofsymbols(pictograms)andsignalwordsto
thespecicdangerandthepossibleconsequences.
1. Danger classications
Pictogram Damage /
injury to Keyword Denition Consequences
Persons
DANGER! Immediatedanger Deathorsevere
injury
WARNING!
Potentially
dangerous
situation
Potentialdeathor
seriousinjury
CAUTION! Lessdangerous
situation
Minororslight
injury
Property
ATTENTION!
Riskofdamage
toproperty/
environment
Damagetothe
equipment,
damagetothe
environment,
damageto
surroundings
-NOTE
Handlingtipsand
otherimportant/
usefulinformation
andadvice
Noinjury/damage
topersons/
environment/
device

5
2. Product safety
HURST products are developed and manufactured to ensure the best performance and
qualitywhenusedasintended.
Thesafetyoftheoperatoristhemostimportantconsiderationinproductdesign.Furthermore,
theoperatinginstructionsareintendedtohelpyouuseHURSTproductssafely.
Thegenerallyapplicablelegalandotherbindingregulationspertainingtothepreventionof
accidentsandprotectionoftheenvironmentapplyandaretobecompliedwithinadditionto
theoperatinginstructions.
The equipment may only be operated by persons with appropriate training in the safety
aspectsofsuchequipment,otherwise,thereisariskofinjury.
Wewouldliketopointouttoallusersthattheyshouldcarefullyreadtheoperatinginstructions
andtheinstructionstheycontainbeforetheyusetheequipmentandcarefullyfollowthem.
Wefurtherrecommendthatyouhaveaqualiedtrainershowyouhowtousetheproduct.
WARNING / CAUTION!
Theoperatinginstructionsforaccessoriesmustalsobetakenintoaccount!
Evenifyouhavealreadyreceivedinstructionsonhowtousetheequipment,youshouldstill
readthroughthefollowingsafetyinstructionsagain.
WARNING / CAUTION!
Pleaseensurethattheaccessoriesyouuseareappropriateforthemaximum
operatingpressureandtheperformanceoftherescuedevice!
Pleaseensurethatnobody
partsorclothingarecaught
betweenthevisiblymoving
parts(e.g.bladearms).
Workingundersuspended
loadsisnotpermittedwhere
suchloadsarebeinglifted
onlybymeansofhydraulic
orelectro-hydraulicdevices.
Ifthisworkisunavoidable,
suitablemechanicalsupports
arealsorequired.
Wearprotectiveclothing,
asafetyhelmetwithvisor,
protectivefootwearand
gloves.
Inspectthedevicebeforeand
afteruseforvisibledefectsor
damage.

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Immediatelyreportany
changesthatoccur(including
changesinoperating
behavior)totheappropriate
persons/departments!If
necessary,theequipmentis
tobeshutdownimmediately
andsecured!
Allboltedconnectionsmust
becheckedforleaksand
externallyvisibledamage,
whichmustberepaired
immediately!Escaping
hydraulicuidcancause
injuriesandres.
Intheeventofmalfunction,
immediatelydeactivatethe
deviceandsecureit.Repair
thefaultimmediately.
Donotcarryoutanychanges
(additionsorconversions)
totheequipmentwithout
obtainingthepriorapprovalof
HURST.
Observeallsafetyanddanger
informationonthedeviceand
intheoperatinginstructions.
Allsafetyanddanger
instructionsonthedevice
mustalwaysbecompleteand
inalegiblecondition.
Anymodeofoperationwhich
compromisesthesafetyand/
orstabilityofthedeviceis
forbidden!
Repairstotheequipment
mayonlybecarriedoutby
atrainedservicetechnician
withspecicknowledgeofthe
device.
Safetydevicesmayneverbe
disabled!
OnlygenuineHURST
accessoriesandspareparts
aretobeusedforrepairs.
Beforeswitchingon/starting
upthedeviceandduringits
operation,makesurethat
nobodywillbeendangered
bythis.
Observeallintervals
forrecurringtestsand/
orinspectionsthatare
prescribedorstatedinthe
operatinginstructions.
Whenworkingclosetolive
componentsandcables,
suitablemeasuresmust
betakentoavoidcurrent
transfersorhigh-voltage
transferstotheequipment.
Pleasenotethatmaterial
couldfalldownorsuddenly
breakfreeduringspreading,
cutting,squeezingoperations
asaresultofshearing,
tearingorbreaking;
appropriatestepsmustbe
takentoavoidthis.

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Theequipmentislledwith
hydraulicuid.Thishydraulic
uidcanbedetrimentalto
healthifitisswallowedor
itsvaporisinhaled.Direct
contactwiththeskinmust
beavoidedforthesame
reason.Also,whenhandling
hydraulicuid,notethatitcan
negativelya󰀨ectbiological
systems.
Whenworkingwithorstoring
theequipment,ensurethat
thefunctionandthesafety
oftheequipmentarenot
impairedbythee󰀨ectsof
severeexternaltemperatures
andthattheequipmentisnot
damagedinanyway.Please
notethattheequipmentcan
alsoheatupoveralong
periodofuse.
Makesurethatthereis
adequatelightingwhile
working.
Beforetransportingthe
equipment,alwaysensure
thattheaccessoriesare
positionedinsuchaway
thattheycannotcausean
accident.
Alwayskeeptheseoperating
instructionseasilyaccessible
attheplaceofoperation.
Ensuretheproperdisposalof
allremovedparts,left-overoil
andhydraulicuidaswellas
packagingmaterials!
ProtecttheeDRAULIC
devicesagainsthumidityand
moisture
TheeDRAULICdevicesare
notsuitableforunderwater
use.
Pleaseensurethatyoudonot
becomeentangledincables
andtripwhenworkingwithor
transportingthedevice.
Pleaseensurethatthe
batterycontactsarenotshort-
circuited.
Thebuild-upofstaticcharges
andthereforepossible
sparkingmustbeavoided
whenhandlingthedevice.
Onlytouchbroken-o󰀨or
cut-o󰀨partswhilewearing
protectivegloves,asthetorn/
cutedgescanbeverysharp.

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3. Intended use
HURSTeDRAULICdeviceshavebeenspeciallydesignedtorescueorretrievethebodiesof
victimsofroad,railoraircraftaccidentsortobeusedduringrescueoperationsfrombuildings.
HURSTeDRAULICcombinationdevicesareusedtofreeinjuredpersonsataccidentscenes
bycuttingthroughdoors,roofbeamsandhinges.HURSTeDRAULICcombinationdevices
can also be used to free persons who have become trapped by pushing open doors or
removingobstacleswiththeaidofachainset.
HURSTeDRAULICdevicesareNOTsuitableforunderwateruse.
The generally applicable, legal and other binding national and international regulations
pertainingtothepreventionofaccidentsandprotectionoftheenvironmentapplyandareto
beimplementedinadditiontotheoperatinginstructions.
WARNING / CAUTION / ATTENTION!
Thedeviceisintendedexclusively forthepurposestatedintheoperatinginstructions(see
chapter"ProperUse").Any other use is not in accordance with its designated purpose.
Themanufacturer/supplierisnotliableforanydamageresultingfromimproperuse.Theuser
bearssoleresponsibilityforsuchuse.
Proper use includes observance of the operating instructions and compliance with the
inspectionandmaintenanceconditions.
Never work in a fatigued or intoxicated state!
CAUTION / PLEASE NOTE!
Caremustalwaysbetakenthattheenvironmentoftheobjecttobeprocessed
remainsstableandsecuredagainstunintentionalshiftingbyusingstrongsupports
orunderpinning.

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WARNING / CAUTION / PLEASE NOTE!
Thefollowingmaynotbecut/squeezed:
- live cables
- prestressed and hardened parts such as springs, spring steels,
steeringcolumnsandrollers
 - pipesundergasorliquidpressure,
 - compoundmaterials(steel/concrete)
 - explosivebodiessuchasairbagcartridges
Theoperatingpressureplacedontherescuedevicemayonlybedirectlychanged
after consultation with HURST.A change in settings may result in damage to
propertyand/orinjuries.
HURSTeDRAULICdevicesarenotexplosion-protected!
When using the devices in potentially explosive environment, the following
mustbeexcluded:
 - thatthedevicecouldtriggeranexplosion.
 - thatworkingwiththedevicecouldtriggeranexplosion;e.g.sparksmayresult
fromcuttinganobject.
TheresponsibilityforexplosionpreventionorforrulingoutworkwithaneDRAULIC
devicewiththeoperatorofthedeviceorwiththepersonresponsibleattheplace
ofuse.
When working in areas at risk of explosion, all applicable legal,
national and international regulations, standards and safety rules
for avoiding explosions must be observed without restriction!
Therescueequipmentshouldnotcomeintocontactwithacidsoralkalies.Ifthis
is unavoidable, clean the equipment immediately afterwards with a suitable
cleaningagent.
You can obtain accessories and replacement parts for the rescue devices from your
authorizedHURSTdealer!

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4. Functional description
4.1 Description
Thecombinationdeviceshavebeendesignedinsuchawaythatahydraulicallyoperated
pistonactivatesmechanicaljointssymmetricallytoopenorcloseasetoftwooppositeblade
arms,thusenablingobjectstobecut.
Foralldevices,themovementisactivatedbymeansofavalveintheformofastargrip.
Alldevicesguaranteethedeadman'sswitchandthefullload-supportingfunctionwhenthe
stargripisreleased.
HURSTeDRAULICdevicesdonotneedtobeconnectedtoanexternalhydraulicsource
(e.g.amotorpump).Generationoftherequiredhydraulicpressuretakesplacewithinthe
bodyofthedevice.
Eitherabatteryoranexternalpowersupplymustbeconnectedasanenergysource.
Youcanchoosewhichenergysourceyouwishtouse.Boththeaccumulatorbatteryand
themainspowerunitcanbeinsertedintotheopeningprovidedinthebodyofthetool.
Theyarethenautomaticallylockedintoposition.
YoucanextendtheoperatingtimeofyoureDRAULICdevicebyusingseveralbatteries.
Thebatteriescanberechargedafteruse,usingasuitableexternalcharger.
Ifyouaremakinguseofanexternalpowersupply,thedevicecanbeusedforanalmost
unlimitedtime.Thistimeisonlylimitedbytheexternalenergysourceandtheoverheating
switchofthepowersupply.
ToallowyoutoselectthebestpossibleenergysupplyforyoureDRAULICdevice,neither
thebatterynorthepowersupplyformpartofthedeliveryscope.Youwillndsuitablebat-
teriesandpowersuppliesintheHURSTaccessorieslist.
eDRAULICdevicescomewithstandardlightttingstofacilitateworkunderpoorlight
conditions.
Thelight-emittingdiodesattachedontheoperatingsidelightuptheworkarea.The
mainswitchhasalsobeenequippedwitharinglight,sothatyoucanimmediatelydetect
whetherthedeviceisswitchedonornot.Whenexchangingthebatteryorpowersupply,
theconnectionslotwilllightupforapproximately30seconds.

11
9
12
11
1
23
4
5
6
7
8
10
SC 250 E2
13
4.2.1 Combination tool
 1 Stargrip
 2 Mainswitch
 3 Quickexchangebattery
orpowersupply
 4 Releasebuttonforbat-
teryandpowersupply
 5 Handle
 6 Ventilationslots
 7 Bladearms
 8 Pivotboltwithsecured
nut
 9 Plastichousing
10 Toolbody
11 Protectivecover
12 Light
13 Exchangeabletipat-
tachments
4.2 Structure of rescue devices
11 SC 358 E2
SC 757 E2

12
4.4 Operating movement controls
Thepistonmovementiscontrolledbythestargripontheattachedvalve(seeillustrationbelow).
Stargrip
5.1 Battery or power supply for eDRAULIC device
5. Operation
Commissioning
Beforeinitialoperation,thebattery(whereused)oftherescuedevicemustbefullyloaded,
usingtheexternalcharger.
4.3 Hydraulic circuit diagram
AB
cutting/gripping/
pulling/squeezing
spreading/
opening
Belowasimpliedhydraulicramrepresentingthetoolisdepicted.
A=toolB=stargripvalve

13
Procedure:
 1. Unplugthepowersupply(whereused)fromthemains.
 2. Fullypressdownthetwounlockingbuttonsandcarefullypullthebatteryorpower
supplyoutofthedevice.
Do not use force!
 3. Thebatterycannowberechargedinthecharger(pleasetakenoteoftheseparate
operatinginstructionsforthechargerandthebatteriestobeused);alternatively,the
powersupplycanbereplaced.
 4. InserttherechargedornewbatteryintotheeDRAULICdeviceuntilitreachesthe
stop.Thebatteryorpowersupplywillbeautomaticallylockedwhencorrectlyoper-
ated.
Connectionslot
Open the device ( ):
Turnthestargripinthedirectionofthecorrespondingsymbol
(open)andholditinthisposition.
Close the device ( ):
Turnthestargripinthedirectionofthecorrespondingsymbol
(close)andholditinthisposition.
"Dead-man’s" function:
Followingrelease,thestargripautomaticallyreturnstothe
centralposition,fullyguaranteeingloadretention.
5.2 Operating the star grip
(alsoseechapteron"Operatingmovementcontrol")

14
6. Cutting, spreading, pulling, squeezing
6.1 Safety notes
Before rescue work can commence, the object must be stabilized in its current position.
Ensurethattheobjectstobeworkedonareadequatelyunderpinnedand/orsupportedto
ensurethatthereisnoriskofslidingorshifting.
Worldwide safety guidelines pertaining to the specic country must be observed and
compliedwith.
WARNING / CAUTION / PLEASE NOTE!
HURSTeDRAULICdevicesarenotexplosion-protected!
Whenusingthedevicesinpotentiallyexplosiveenvironments,the following
mustbeexcluded:
 - thatthedevicecouldtriggeranexplosion.
 - thatworkingwiththedevicecouldtriggeranexplosion;e.g.sparksmayresult
fromcuttinganobject.
TheresponsibilityforexplosionpreventionorforrulingoutworkwithaneDRAULIC
devicelieswiththeoperatorofthedeviceorwiththepersonresponsibleatthe
placeofuse.
When working in areas at risk of explosion, all applicable legal,
national and international regulations, standards and safety rules
for avoiding explosions must be observed without restriction!
Thefollowingaretobewornwhenworkingwiththerescueequipment:
- protectiveclothing,
- safetyhelmetwithvisororprotectivegoggles,
- protectivegloves,
- and,ifnecessary,earprotection.
Beforeoperatingtherescuedevice,youshouldensurethatnoparticipantsorbystandersare
atriskfromthemovementsoftherescuedeviceorfromyingfragments!Avoidunnecessary
damagetopropertybelongingtoothersortoobjectsnotinvolvedintherescueordamage
causedbyyingfragments.
Note on the operation of the eDRAULIC with a rechargeable battery:
IftherechargeablebatteryremainsintheeDRAULICdevicewiththemainswitchon,but
withoutactivatingthestargrip,therechargeablebatterywillswitchitselfo󰀨aftersometime
(approximately10-60 minutes,dependingonthetypeofbattery).Ifthestargripisthen
activated,theeDRAULICdevicewillnotswitchitselfon.
Inordertoresumeworkwiththedevice,theeDRAULICdevicemustrstbeswitchedo󰀨at
themainsandthenswitchedonagain.
Alternatively,thecapacitydisplayontherechargeablebatterycanbeactivatedorthebattery
maybebrieyunpluggedandrepluggedagain.

15
It is strictly prohibited to reach into the path of the
rescue device (e.g. between the blades and the material/
object to which the force is to be applied)!
CAUTION / PLEASE NOTE!
The strong e󰀨ect of the force of the rescue equipment during operation could
causepiecesofthevehicleto break o󰀨 or y o󰀨,posingadangertopersons.
Those not involved in the rescue operation should therefore keep at a safe
distance appropriate to the situation.Anytrapped orenclosed persons must
beprotected.
6.2 Cutting
Thebladesshouldbepositionedata90°angletotheobjecttobecut,ifpossible.
RIGHT
WRONG
12
93
15°
15°
90°
Highercuttingcapacitiescanbeachievedbycuttingascloseaspossibletotheblade’spivotpoint.
RIGHT
WRONG

16
During cutting, the gap between the blade tips (in the transverse direction) must not be
exceeded,otherwisethebladeisindangerofbreaking:
ATTENTION!
Wherepossible,avoidcuttingthroughhigh-strengthpartsofthevehiclebody
(e.g. side impact protection). This may result in damage to the blades or to
increasedwearandtear!
eDRAULIC cutting device max. gap at the blade tips
[mm] / [in.]
SC 250 E2 3 / 0.12
SC 358 E2 3 / 0.12
SC 757 E2 3 / 0.12
Cutting with SC 358 E2 and SC 757 E2
ThespreadertipofSC358E2andSC757E2canberemoved.Thispreventsthematerial
frombecomingstuckbetweenthespreadertips,hinderingthecuttingprocess.
Removing the spreader tip
Step 1:
Toremovethespreadertips,rstpushoutbolt“A”alittle,usingangeroranobject.Afair
amountofforceneedstobeappliedinitially,asthebolthasaballcatchtopreventitfrom
fallingoutunintentionally.
3.
2.
1.
A

17
6.3 Spreading
Usethefrontofthetipsonlytoincreaseanexistinggap.Toincreasegripandtoavoidhaving
thetipssliporbreakoutoftheparttobeprocessed,thegripshouldbereappliedatanearly
stage.Thehighestforcedevelopsintherearareaoftheplug-ontiporintherearspreading
areaofthecombinationblades.
WARNING / CAUTION / PLEASE NOTE!
The light metal alloy arms may not be damaged.
Spreading Enlargingagap
approx25mm
approx. 1 in
Step 2:
Theboltcanthenbegrippedbytheangeandpulledoutuptothelimitstop.Thelimitstop
willpreventtheboltfrombeingpulledoutentirely.Thismeansthatitcannotbelost.
Step 3:
Pullthespreadertipforwardstoremoveit.
Attaching the spreader tip:
Attachmentofthespreadertiptakesplaceinthereversesequence.
Ensurethattheboltisalwayscompletelypushedinandengages.Ifthebolthas
notengaged,thismayresultinthetipinadvertentlycomingloosewhileinuse.
Thisinturncouldresultindamagetotherescueequipment.Therescuedevice
couldalsosliporpartscouldbeungo󰀨,resultingininjuriestoboththeoperator
andthecrashvictim.
Caremustalsobetakenthattheboltdoesnotinadvertentlycomeloosewhile
thedeviceisinuse.

18
Workingsurfaceistoosmall,
tipsslipo󰀨.
Onlyforincreasingthesize
ofagap(notsuitablefor
spreading)
Tipsgetasafegrip. Workwiththetipsonly.
Donotdamagethe
spreaderarms!
6.4 Pulling
WARNING / CAUTION / PLEASE NOTE!
The light metal alloy arms may not be damaged.
- HURSTchainsetsmustbeusedforpulling.
- Whenusingachainforpulling,makesurethatthepinsandhooksarepositionedcorrectly
sothatthechaincannotslip.
- Onlychainsetsinperfectconditionmaybeused.
- Thepullingchainsmustbecheckedbyanexpertatleastonceayear.
- Alsoconsulttheseparateoperatinginstructionsforthecorrespondingchainset!
Attachmenthole
forchainsets

19
ATheconnectingpiecesforHURSTchain
setsarefastenedtothebladesusing
loadboltsinholes"A".(seeillustration
ontheright)
Chain sets:
forSC250E2: KSV8/50
forSC358E2: KSV11
forSC757E2: KSV13
NOTE:
Alsotakenoteofalltheinstructionsandregulationsintheseparatelyprovided
operatinginstructionsforthechainsets.
Pulling with SC 757 E2
TousetheSC757E2forpulling,thespreadertipmustrstberemoved(see6.2).
Thepullingattachment“A”isthenmounted.
Firstpullouttheboltofthepullingattachmentuptothelimitstop,slipthepullingattachment
ontothearmandpushintheboltcompletelyuntilitengages(alsoseeSection6.2,“Removing
andattachingtheSpreaderTip”)inthisregard.
Thematchingchainlock “C” can then bexedtohole“B” of the pulling attachment(see
separateoperatinginstructionsforchainlock).
2.
1.
A
C
B

20
WARNING / CAUTION / PLEASE NOTE!
Thepullingattachmentsmustbemountedinsuchawaythatthetwosurfaces,
„A“and„B“arealwaysinthesameplane.Thisensuresthatthepullingforceis
symmetricallyapplied.
Ifthisinstructionisdisregarded,thismayresultinexcessiveloadbeingplaced
onthecuttingarms,resultingininjuriestotheoperatororcrashvictim.
RIGHT
WRONG
WRONG
BA