Deprag 344-740-31L User manual

013106EN
Operating Instruction Booklet
StationaryScrewdriverSpindle
344-740-31L 389728 C
MINIMAT

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Dear Customer:
Thistool isthe resultofmore than75yearsofexperiencein thedesign and
manufacturing ofpneumatictoolsforthe industrial market.
Wekindlyask thatyou read theseoperating instructionscarefullysothatyou
will be able tousethistoolsafelyandfor manyyears tocome.
If you need additional information,pleasecontact your DEPRAG
Representative,one ofour international supportofficesorusdirectat
DEPRAG.Wewill be happytoanswer anyquestions.
Pleasevisitour web site: www.deprag.com
Contents
1SAFETYTIPS................................................................................................................3
1.1 GeneralSafetyTips.....................................................................................................3
1.2 GeneralSafetyTipsforPneumaticStationaryScrewdriverSpindles..........................4
1.3 OwnerObligation.........................................................................................................4
1.4 OperatorObligation.....................................................................................................5
1.5 WarrantyandLiability..................................................................................................5
1.6 SymbolDescription......................................................................................................6
1.7 ObserveEnvironmentalRegulations...........................................................................8
2DESIGNATEDEQUIPMENTUSE.................................................................................8
3INSTALLATION..............................................................................................................9
4OPERATION................................................................................................................11
4.1 RangeandExchangeofClutchSpring......................................................................12
4.2 Torque Adjustment....................................................................................................13
4.3 Changeof Bits...........................................................................................................14
4.4 Connection-Possibilitiesofthe FunctionControl.......................................................15
5DISASSEMBLY-ASSEMBLY......................................................................................16
5.1 SpecialRepair Tools(OptionalEquipment)...............................................................18
5.2 SparePartsDrawings................................................................................................19
5.3 Installation TipsforScrewdriverSpindle....................................................................23
6MAINTENANCEAND UPKEEP...................................................................................24
6.1 WearParts.................................................................................................................24
7TROUBLE SHOOTING................................................................................................25
8DELIVERYCAPACITY.................................................................................................26
9ACCESSORIES -OPTIONAL EQUIPMENT................................................................27
10 STORAGE..................................................................................................................29
11 TECHNICAL DATA.....................................................................................................29
12 DISPOSAL..................................................................................................................30
13 DECLARATIONOFMANUFACTURER.....................................................................31
14 SERVICELOCATIONS AND AUTHORIZEDPARTNERS.........................................32

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1SafetyTips
1.1GeneralSafetyTips
Beforeoperating tool makesureto carefullyreadand
observethisoperating instruction.
Generally,theoperator ofthe equipmentand/ormachineryisresponsible for
the equipment’sperfect condition and operation,while observing all necessary
safetyregulations.The equipmentand/or machineryhasbeen constructed in
accordancewiththe newestlevel oftechnologywhile recognizingall
necessarysafety-related requirements.Nevertheless,while operating the
equipmentand/or machinerythereisariskofbodilyharmtothe operator as
well as damagetoequipmentand/or machineryand other property.
Operatethe equipment and/ormachineryonlyif equipment/machinery
· Isused forthe task it was designed for
· is inperfectworkingcondition andsafetouse.
It isimportanttoobservethe technical dataofthe equipment, especiallyin
regardstotheenvironmental temperatures. The designated area ofuseforthis
equipmentisclearlydescribed in chapter Designated EquipmentUse and
thoserequirementshavetobe observed aswell.Prerequisiteforthe safe
conduct andthe uninterrupted operationofthe equipment, isthe knowledge of
the basicsafetytipsandthesafetyregulations.Additionally,all current
regulationsforasafeoperational area,for accident-prevention guidelinesof
electrical and mechanical installations, aswell asnoisesuppression demands
mustbe observed.Duringanymaintenanceorrepair work, acleanwork
surfaceisrecommended.Also,itisnotrecommended toeither eator smoke
during repair ormaintenance. Arbitrarychangesmade tothe equipment,which
altersitsdesignateduse,voidsthe warrantyand cancelsthe manufacturers
liability.
· The toolis notinsulated toprotectagainstanelectricalpower surge.
· Itisnotrecommended tousethistoolin explosivehazardous
environments,unlessit wasspecificallydesigned forsuchause.
The operating instruction booklet,especiallythe safetysymbolsandsafetytips
attachedtothe equipmentor included inthe documentation,mustbeobserved
at alltimesbyall persons gettingintocontact withtheequipment.

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1.2GeneralSafetyTipsforPneumaticStationaryScrewdriverSpin-
dles
·
Disconnectthetoolfromthe airsupply, when changingbits or
when re-adjustingclutch.
· Donotwear wide clothingorjewelry, fortheycan beseizedby
movable parts.Wear ahairnet ifoperator haslonghair.
· Keep handsoff theinstalledScrewdriver Spindle.
· Injuryispossible,if the driver reacts withan unexpectedmotionor when
usedwithbrokenbit orfixture.
· Whenusing toolwithbit-adapter or bit-extension (i.e. Magnetic Bitholder)
makesure,thatthoseitems areingoodcondition andwell suitedfor the
applicationwiththistool.
· Donotexceed themaximumallowableairpressure.
Apressure
regulatorhastobeinstalled, whichregulates pressurebefore
reachingthe tool.
· Afterturning-offthetool,thebit will continuetorotate(inertia).
1.3OwnerObligation
The owner isobligedtoonlyletpersons operatetheequipment,who
· are familiarwithbasicwork environmentsafetyrules andaccident-
preventing regulations.Also,thosepersons musthavebeen instructedin
the correctuseofthe equipment.
· haveread andunderstood all safetyand warning notificationsin the
OperatingInstructionBooklet,aswell as allotherdocumentation
pertainingtothisequipment.
· checkandconfirmat regularintervals,thatasafetyoriented operationis
guaranteed.
Onlyqualifiedandauthorizedpersonnel is allowed tooperate, maintainand
repair this equipment.Amalfunction, whichimpairs operator safety, mustbe
immediatelyremoved.

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1.4Operator Obligation
Personnel,who isengaged inthe operationofthe equipment,mustalways be
committed to
· observethebasicsafetyandaccident preventing regulations,
· read andobservethe safetyand warning notifications ofthisoperating
instructionbooklet.
1.5WarrantyandLiability
Unless otherwisespecified,our “General Salesand DeliveryConditions”
apply.Warrantyand liabilityclaimsin regardstopersonsor equipment
damagesareinvalid, ifone or several ofthefollowing causesapply:
· Useoftheequipment inanon-designated application.
· Improperinstallation, operation, serviceormaintenanceofthemachine.
·
Operationofthe machine witheitherdefectiveor removed safetyand
protectiondevices.
· Non-
observanceofthe requirements stated in the operating instruction
booklet
,in regardstotransportation,storage,mounting,installation,
operation,maintenanceand serviceoftheequipment.
· Structural changeor adjustmentonthe equipmenttoanon-
designated
use.
· Inadequatesupervisionofwear parts.
· Improperrepair,inspection ormaintenance.
·
Catastrophic casesbecauseofawar,actsofgod or otherreasonswhich
are beyond ourcontrol.

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1.6Symbol Description
Readand observetheOperating Instruction Booklet, prior
toand during operation oftool.
DANGER
Reference toan immediatedangertoaperson.Mayleadto
seriousinjuriesor evendeath,ifunobserved!
Properlyrecycle environmentallydamaging grease,cooling
agents ordetergents.
RECOMMENDATIONS
Importantoradditional information onthe equipmentor inthe
documentation.
Useeyeprotectionor wear safetygoggles.
Wearhearingprotection.
Warningagainsthand-injuries.
Attention:Keepawayyour handsfromareas,whicharemarked
withthissymbol!
Hands maybe crushed,seizedorotherwiseinjured.
ESD-protected area
Equipmentmaybe damaged ordestroyed byan electrostatic
discharge.
WasteOil

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Maintenanceand repair onhydraulicand pneumaticequipment
mayonlybe performed byspeciallytrained personnel!
Disconnectequipmentfromairsupply, priortorepair of
pneumatic orhydraulicequipment.
Provide regular preventivemaintenanceon hosesandairlines.
Exchange hoselines,even ifthere isnovisible damage!
(Observecorresponding requirementsofthe manufacturer!)
Afterrepair and maintenance,check thefollowing items:
· makesurealldetached andre-attachedconnectionsare
solid.
· confirm thatremoved covers, screensor filterswere re-
installed
· During disconnecting orreconnectingof anair-operated
equipment, injurymayoccurduetoawhipping air-hose
Afterconclusion of maintenanceor repair andpriortostartof
operation,makesure to
· removeall materials,toolsandothersuppliesneededforthe
maintenanceor repair fromworkarea oftheequipment
· removeleaking liquid oroils
· makesureallsafetydevices onthe equipment workperfectly!

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1.7ObserveEnvironmentalRegulations
Whenworking onorwiththe equipment,itis imperativeto
observeall requirementsinregardstowaste-disposal and
proper recycling.
Especiallyduringinstallation,repairormaintenance,water
damaging agentssuchas
· lubricatinggreaseand oil
· hydraulic fluid
· coolingagents
· solvent-containingcleaningagents
mustnot leakintothe groundorintothesewage system!
Suchmaterialsmustbestored,transported,containedand
recycled insuitablecontainers.
2DesignatedEquipment Use
Screwdriver Spindles are constructedfor thestationaryusein
·Lever OperatedSingle Spindle Screwdriving Stations
·ConstructionUnits
·Multi-SpindleScrewdriving Stations
·Robot End-Of-Arm Tooling
·X-Y-ZScrew-AssemblyStations
TheseSpindles assemble screwstotorque andmeasure thattorquemore
accuratelythan anysubsequenttestingmethod.

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3Installation
·
Blowout airlineandpressure hose,prior toconnection ittothetool.
· Makesure,thatall air lineshaveasufficientcross-section(see technical
data)andhosesmustbefree ofbends andkinks. The hoselengthshould
not exceed2meters.
· All DEPRAGScrewdrivers maybe operatedeither withor without
lubricatedair(see paragraph: Maintenanceand Upkeep). Best resultsare
achieved, when machineislubricatedwith1–2dropsofoil per1m3.
Whenoperatingwithoilfree air,aperformancereductionof upto20%
occursandmaintenancerequirementsincreases!
· Connect the equipment asfollows:
a) for standardoperation connectequipmenttoamaintenanceunit,
consistingofFilter withcondensationreservoir, Regulatorand Oiler.
Whenchoosing amaintenanceunit, observeair consumption ratefor
the tool(see TechnicalData).
Air ConsumptionThread Size PartNo.
0,05 -0,5m³/min ¼” 820454 A
0,15 –1,5m³/min ½” 820455 A
0,8–6,0m³/min ¾” 821608 A
b) for theusewithminimal lubrication connect toafilter-regulator
consistingofFilter withcondensationreservoir andpressure regulator
Air ConsumptionThread Size PartNo.
0,05 -0,5m³/min ¼” 822408 A
0,15 –0,9m³/min
3¤8” 826981 A
0,5–1,5m³/min ½” 822409 A
0,8–6,0m³/min ¾” 826982 A
Eachin connectionwithaPoint-of-UseOiler (PartNo.378077 A)
c)for oilfree operation,connecttoFilter/Regulator,consistingofFilter
withcondensationreservoir andPressure Regulator.
Air ConsumptionThread Size PartNo.
0,05 -0,5m³/min ¼” 822408 A
0,15 –0,9m³/min
3¤8” 826981 A
0,5–1,5m³/min ½” 822409 A
0,8–6,0m³/min ¾” 826982 A

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OUR RECOMMENDATION: The preferred lubricatingmethod for the
screwdriver spindles mountedinfixtures,brackets,machines,etc.,eachin
connection withacontroller,ismethodb) withPoint-of-UseOiler.
· Checkpressureat directlyon the machine.The Regulatorneedstobe
adjusted toanairflowbetween 5.0(71PSI)and6.3bar(90PSI).Ahigher
pressureleadstoincreased wear andtear.Alower pressure maylead to
clutchnot being abletocorrectlyshut-offthe motor.
Inregardstoair-qualityaccordingtoISO8573-1, werecommend:
CLASS
RESIDUE
OF OIL
RESIDUEOF DUST RESIDUEOF WATER
Content
mg/m³
Particle
Size mm
Concentration
max. mg/m³
DewPoint
oC
Pressure
Concentration
max. g/m³
Lubricated Air 4 5 15 8 +3 6
DryAir 3 1 5 5 -20 0,88

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4Operation
Unlessotherwiserequested thedriver ispresettomax.torque withthe
strongest clutchspring.
Adjustclutchtotherequiredtorque value.If necessary, exchangeclutch
spring. Thenecessarytorque adjustmentcanbetested, usingaDEPRAG
Torque Wrenchor Dynamometer (see DEPRAG catalogsD3020 and D3022).
This equipment canalsobeusedtore-adjustthetorque oftheScrewdriver
Spindle.
Operatingtheclutchusing aclutchspring whichexceeds
itsallowable torque, leadstoareductionof the torque
accuracy.
The driver starts byremote-valve.
The flowpressure should notdropbelow5bar (71PSI)!
The installationandconnectionofthe Screwdriver Spindle requiresthe
following steps:
1.Adjustclutchtorequired torquesetting(see paragraph: Torque
Adjustment).
2.InstallScrewdriver spindleaccordingtopicture„InstallationTipsfor
screwdriverspindle“.
3.Connectmainairhose.
4.Connectpneumaticfunctioncontrolhose.Thisfunctioncontrolisunder
pressureof2,5bar during actual screw-driving. Ifthefunction control
isnotneeded, theporthastobeclosed, otherwisethereisaloss of
powerofabout15%.
Pleasemakesurenottoexceed the max. screwdriver stroke(see
InstallationTips for screwdriverspindle)duringScrewdriving. Thenoiselevel
can be furtherreduced,when anexhaust connectionwithconnected
Filter/Silencer isused.

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4.1Rangeand ExchangeofClutchSpring
The torque range oftheDEPRAG Screwdriver is adjustable.Pleaseseea
listing forthetorquerangesofthe color
-
codedspringsbelow.
TorqueRangeoftheindividualclutchspring:
PART NO.
WIRE-ÆCOLOR TORQUE "MIN." TORQUE "MAX."
353796 4.0 mm black appx. 16 Nm /142 in.lbs appx. 45 Nm /398 in.lbs
All torquevalues arebased on90-PSI (6.3bar)airpressure. Torque values
are estimateddatawhichmaydiffer–dependingon thetype of screwjoint.
Exchangeofclutchspring (seePicture)
Toavoid loosingindividual small parts, it isrecommendedto
onlydisassemblethe machine ontopof aflatworksurface.
1.Disconnectscrewdriver fromairsupply.
2.Unscrewgearing389852 A(AF36,left-handthread).
3.Disassemblelockring 800304andpulloutintermediatepinion 379110
together withgrooved rotaryjoint802035 (borethreadM4in theinter-
mediatepinion).
4.Takeoutclutch389748 F complete.
5.Insertthesuppliedhand screwdriver 326240 intothehalf-round bore of
the lockringand turn handscrewdriverclockwise,until theadjustment
nutcomes off.
6.Pull offthe lockring.
7.Removeclutchspring,replacewithrequired clutchspringand reassem-
ble the clutchinreverseorder.
8.Mount intermediatepinion379110andgrooved rotaryjoint 802035 onto
the clutch,insert theclutchintothe screwdriver and thenassemble lock
ring 800304.
9.Tighten thegearing tothe DEPRAG-Screwdriver (left-handthread).
ATTENTION
Theclawoftheclutchmust engagewiththeclawofthein-
termediate pinion (located ingearing389852A).
Thehex oftheclutchshaft must engagewiththehexofthe
spindle(located in gearing 379245G).
10.An external torqueadjustmentoftheclutchis again possible (see chap-
ter Torque Adjustment).

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Picture:Exchangeofclutchspring
Makesuretoscrewadjustment(adjusting) nut ontoclutchbearing
untilone line ofthethreadisvisible.
4.2TorqueAdjustment
For an externaltorque adjustmentusethe following steps:
1.Disconnectscrewdriver fromairsupply.
2.Insertthesuppliedhand screwdriver 326240 throughoneoftheslots on
the housing intothe half-roundboreofthe lockring(if necessary, turnbit
byhand).
3.Byturning thehandscrewdriver clockwise(-), the torqueisreducedand
byturning itcounter-clockwise(+), the torqueincreases.
Picture:TorqueAdjustment
adjustment
nut
half-round boreclutchspringclawoftheclutch
half-round bore for
hand screwdriver
hexof the
clutchshaft

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4.3ChangeofBits
ATTENTION
Prior exchanging bits,screwdriverneedstobediscon-
nectedfromairsupply.
INFORMATION
The screwdriver isequipped withaquick changechuck.
Makesuretouseperfect bitswithDIN3126 only.
· Afterpulling lock sleeve384202 forward,thebitcanbe removed or in-
serted.
· DriveF11,2(7/16“)
Picture:ChangeofBits

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4.4Connection-PossibilitiesoftheFunction Control
Use as air pressureoutletduring screw-assembly:
· tocontroldriver start and stop,as well asshut-offcontrol ofclutch;
· ascycle counterof the completeprocess;
eachin connectionwithaPE-Switchorsimilar
Thisfunctioncontrolisunderpressureof appx. 2barduringactualscrew-
driving. Afterreaching thepresettorque,theclutchwill disengage andturnoff
the Screwdriver. The pressure inthe function controllinewill drop. The
Screwdriver can nowbe lifted offtheassembled screw.
Use as air pressureinlet:
· If6.3bar(90PSI)air pressure isgiven tothefunctioncontrol port, the
driver starts rotatingatabout15 %ofitsspeed. This will simplifythe enga-
gementofbit/sockettofastener (forexample when driving hexscrews,
nuts, etc.)
Ifthefunctioncontrol is notneeded,theport hastobeclosed,
otherwisethereis aloss ofpower ofabout 15%.
Function Description /Driver Start
Picture: Installationof RemoteValve
INFORMATION
The screwdriver will start assoon asconnecttotheairsupply.
Pleasemakesurethattheairflowof theremotevalveis mini-
mum2,2m³/min.

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5Disassembly-Assembly
Disassembly: (see SpareParts Drawing)
Prior todisassembly, disconnect equipmentfromair
supply! Onlyexperiencedmaintenance personnelmay
assembleor disassemblethisequipment.
Afterrepair or maintenance,verifythat equipmentrunstospecification!
Principally, useonlyDEPRAG originalspare parts. Otherwise, areduction
in equipmentpower-output and anincreasedmaintenance-requirement
occurs. If NON-DEPRAG parts areinstalled, DEPRAGis justifiedtovoid
anyexisting warrantyand liabilityobligations.
Attention:
Motor- and gearingparts maybe damaged if dropped!
For disassembly proceedinthesequencedescribed below:
1.Disconnectscrewdriver fromairsupply.
2.Unscrewgearing389852 A(left-handthread).
3.Disassemblelockring 800304bymeans ofasuitableplierandpullout
intermediatepinion379110 togetherwithgrooved rotaryjoint 802035
(bore threadM4in the intermediatepinion).
4.Takeoutclutch389748 F complete.
5.Disassembletheguide boltbyremoving hex. nut 800679(AF17,right-
hand thread).
6.Clampthescrewdriver spindle onits flange 3841571 (intoavice)and
unscrewnipple 384207 (AF17,right-hand thread)as well as exhaust
connection 351820 T complete(AF36,right-handthread).
7.Takeoutthecompletevalveset389874Aaswell asvalveplate
3394221,rubber ring802443andvalvepin 392995.
8.Hold housing3841711 withflange3841571 andunscrewvalvehousing
384132 bymeans ofkey462120(right-handthread).
9.Pull offflange3841571.
10.Pushthemotor andgearingpackage approx. 3mm towards air inletside
and removewedge 326946bymeans of assemblykey460744.
11.Slide themotorandgearingparts bymeansofasuitablearbor carefully
out ofthehousingindirection oftheairinlet.

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a.Clamprotorcylinder intofixing device.
b.Pull off shaft-sidebearing cover fromrotor.
c.Removerotorcylinder.
NOTE
Exchange onlycompletesets of vanes.
d.Removevanes andcheckthemthoroughly. Vanesthataretoonarrow
or damagedhavetobe replaced in sets.
e.Pull offairconnecting-sidebearing cover fromrotor.
f.Pressthetwoballbearingsfrom thebearing covers.
NOTE
Minimumvanes widthshouldbe8mm.
Assembly:
Use theDEPRAGGrease807293(100-gtube) togreasethe
ballbearing, needlebearing and gearing partspriorto
reassembly.
a.Clean rotor.
b.Presstheballbearingsintothe twobearing covers.
c.Presstheshaft-sidebearingcover withtheballbearing ontherotor.
d.Insertthenewvanes intotherotor.
e.Puttherotorcylinder over therotor.
After assemblythebearing coversshouldn’thaveanyaxial
gap. Therotormust turnfreely.
f.Press air-connectingside bearingcover withthe ball bearing onthe
rotor.
1.Slide themotorandgearingparts intothe housingin direction ofthe
clutchside.
Makesuretocorrectlypositionthe motor and gearingpackage
intothehousing,that you can mountthe wedge.
2.Useassemblykey460744 inordertomount wedge 326946 intothe
housing.
3.Mountflange3841571.
4.Hold thehousingwiththeflange and tightenvalvehousing384132by
means ofkey462120 (right-handthread).

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5.Mount valvepin 392995,rubberring802443 andvalveplate3394221as
well as valveset 389874 A.
6.Clampscrewdriver spindleonits flange(intoavice) andassemble ex-
haustconnection 351820 T complete(AF36,right-handthread).
7.Assemble nipple 384207 together withslideconnector828002 (AF17,
right-hand thread).
8.Mounttheguidebolt usinghex. nut 800679 (AF17,right-hand thread).
9.Mount intermediatepinion379110andgrooved rotaryjoint 802035 onto
the clutchandinsertthelatterintothescrewdriver. Assemble lockring
800304 bymeans of asuitable plier.
10.Mount gearing389852 Acomplete.
ATTENTION
Theclawoftheclutchmust engagewiththeclawofthein-
termediate pinion (located ingearing389852A).
Thehex oftheclutchshaft must engagewiththehexofthe
spindle(located in gearing 379245G).
5.1SpecialRepair Tools(OptionalEquipment)
NAME PART NO.
Fixing device(for rotorcylinder) 462381
Assemblypin (for wedge 326946) 460744
Assemblydevice(for circlip 800293) 462252
Chuckingjaws (forhousing3841711) 462380
Pin wrench(forvalvehousing 384132) 462120

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5.2SparePartsDrawings

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