Promac PBD-2555V User manual

Metal Lathe
Metalldrehbank
Tour à métaux
06-2017
PBD-2555V
Schweiz / Suisse
JPW (TOOL) AG
Tämperlistrasse 5
CH-8117 Fällanden Switzerland
www.promac.ch
France
TOOL France / PROMAC
57, rue du Bois Chaland, Z.I. du Bois Chaland
case postale 2935 FR-91029 Evry Cedex
www.promac.fr



CE‐ConformityDeclaration
CE‐Konformitätserklärung
DéclarationdeConformitéCE

Product/Produkt/Produit:
Metallathe/Metalldrehbank/Touràmétaux
PBD‐2555V

Brand/Marke/Marque:
PROMAC
Manufacturer/Hersteller/Fabricant:
JPW(Tool)AG,Tämperlistrasse5,CH‐8117Fällanden
Schweiz/Suisse/Switzerland

Weherebydeclarethatthisproductcomplieswiththeregulations
Wirerklärenhiermit,dassdiesesProduktderfolgendenRichtlinieentspricht
Parlaprésente,nousdéclaronsqueceproduitcorrespondauxdirectivessuivantes
2006/42/EC
MachineryDirective
Maschinenrichtlinie
DirectiveMachines
2014/30/EU
electromagneticcompatibility
elektromagnetischeVerträglichkeit
compatibilitéélectromagnétique
designedinconsiderationofthestandards
undentsprechendfolgenderzusätzlicherNormenentwickeltwurde
etétédéveloppédanslerespectdesnormescomplémentairessuivantes
ENISO12100:2010
ENISO23125:2015
EN60204‐1:2006/AC2010
EN61000‐6‐2:2005
EN61000‐6‐4:2007/A1:2011

ResponsiblefortheDocumentation/Dokumentations‐Verantwortung/ResponsabilitédeDocumentation:
HansjörgMeier
HeadProduct‐Mgmt./LeiterProdukt‐Mgmt./Resp.GestiondesProduits
JPW(Tool)AG


2017‐03‐06AlainSchmid,GeneralManager
JPW(Tool)AG,Tämperlistrasse5,CH‐8117Fällanden
Schweiz/Suisse/Switzerland




3
ENOperatingInstructions(Original)
1.0AboutthisManual
ThismanualisprovidedbyPROMAC,coveringthesafeoperationandmaintenanceproceduresforaPROMACModelPBD‐
2555V Metal Lathe. This manual contains instructions on installation, safety precautions, general operating procedures,
maintenanceinstructionsandpartsbreakdown.Themachinehasbeendesignedandconstructedtoprovideconsistent,long‐
termoperationifusedinaccordancewiththeinstructionsassetforthinthisdocument.
Retainthismanualforfuturereference.Ifthemachinetransfersownership,themanualshouldaccompanyit.

2.0TableofContents
Section Page
1.0 Aboutthismanual............................................................................................................................................................3
2.0 Tableofcontents..............................................................................................................................................................3
3.0 Importantsafetyinstructions.......................................................................................................................................4~6
 3.1 Designateduseandlimitationstouse.....................................................................................................................6
 3.2 Remaininghazards..................................................................................................................................................6
4.0 Specifications................................................................................................................................................................7~8
5.0 Machinedescription.........................................................................................................................................................9
6.0 Setupandassembly........................................................................................................................................................10
 6.1 Unpackingandcleanup........................................................................................................................................10
 6.2 Shippingcontents..................................................................................................................................................10
 6.3 Assembly................................................................................................................................................................10
 6.4 Initiallubrication....................................................................................................................................................10
 6.5 Installation.............................................................................................................................................................10
7.0 Electricalconnections...............................................................................................................................................10~11
 7.1 Groundinginstructions..........................................................................................................................................10
 7.2 Extensioncords......................................................................................................................................................11
8.0 Adjustments.............................................................................................................................................................11~13
 8.1 Spindlespeedrangeselection...............................................................................................................................11
 8.2 Changegearsetup.................................................................................................................................................11
 8.3 Taperturningwithtailstock...................................................................................................................................12
 8.4 Taperturningwithtopslide..................................................................................................................................12
 8.5 Threejawuniversalchuck.....................................................................................................................................12
 8.6 Fourjawindependentchuck.................................................................................................................................13
 8.7 Livecentre.............................................................................................................................................................13
 8.8 Steadyrestandfollowrest....................................................................................................................................13
9.0 Operatingcontrols..........................................................................................................................................................14
10.0 Machineoperation...................................................................................................................................................14~16
 10.1 Cuttingexecution..................................................................................................................................................14
 10.2 Chucking................................................................................................................................................................14
 10.3 CuttingToolSetup.................................................................................................................................................15
 10.4 Recommendedspindlespeeds..............................................................................................................................15
 10.5 Manualturning......................................................................................................................................................15
 10.6 Turningwithautofeed..........................................................................................................................................15
 10.7 Threadcutting.......................................................................................................................................................15
 10.8 Drillingoperation...................................................................................................................................................16
11.0 Usermaintenance..........................................................................................................................................................16
 11.1Lubrication..............................................................................................................................................................16
12.0 Troubleshooting.............................................................................................................................................................17
13.0 Environmentalprotection..............................................................................................................................................17
14.0 Availableaccessories......................................................................................................................................................17
15.0 Replacementparts...................................................................................................................................................18~33
16.0 Wiringdiagrams...............................................................................................................................................34~35

3.0IMPORTANTSAFETY
INSTRUCTIONS
READALLINSTRUCTIONSBEFOREUSINGTHISLATHE.
–Toreduceriskofinjury:
1. Read and understand entire owner’s manual before
attemptingassemblyoroperationofthismachine.
2. Read and understand the warnings posted on the
machineandinthismanual.
3. Replace warning labels if they become obscured or
removed.
4. Thismachineisdesignedandintendedforusebyproperly
trained and experienced personnel only. If you are not
familiarwiththeproperandsafeoperationofametal
lathe, do not use until proper training and knowledge
havebeenobtained.
5. Donotusethismachineforotherthanitsintendeduse.If
used for other purposes, PROMAC disclaims any real or
impliedwarrantyandholdsitselfharmlessfromanyinjury
thatmayresultfromthatuse.
6. Alwayswearapprovedsafetyglassesorfaceshieldwhile
usingthismachine.(Everydayeyeglassesonlyhaveimpact
resistantlenses;theyarenotsafetyglasses.)
7. Beforeoperatingthismachine,removetie,rings,watches
andotherjewellery, and roll sleevesuppastthe elbows.
Remove loose clothing and confine long hair. Non‐slip
footwear or anti‐skid floor strips are recommended. Do
notweargloves.
8. Wearhearingprotection(plugsormuffs)duringextended
periodsofoperation.
9. Some dust created by sawing may contain chemicals
knowntocausecancer,birthdefectsorother
reproductive harm. Some examples of these chemicals
are:
 Leadfromleadbasedpaint.
 Crystalline silica from bricks, cement and other
masonryproducts.
 Arsenic and chromium from chemically treated
lumber.
Yourriskofexposurevaries,dependingonhowoftenyou
dothistypeofwork.Toreduceyourexposuretothese
chemicals, work in a well‐ventilated area and work with
approved safety equipment, such as face or dust masks
that are specifically designed to filter out microscopic
particles.
10. Do not operate this machine while tired or under the
influenceofdrugs,alcoholoranymedication.
11. MakecertaintheswitchisintheOFF position before
connectingthemachinetothepowersupply.Turnoffall
controlsbeforeunplugging.
12. Makecertainthemachineisproperlygrounded.Connect
to a properly grounded outlet only. See Grounding
instructions.
13. Make all machine adjustments or maintenance with the
machineunpluggedfromthepowersource.
14. Removeadjustingkeysandwrenches.Formahabitof
checking to see that keys and adjusting wrenches are
removedfromthemachinebeforeturningiton.
15. Keepsafetyguardsinplaceatalltimeswhenthemachine
is in use. If removed for maintenance purposes, use
extremecautionandreplacetheguardsimmediatelyafter
maintenanceiscomplete.
16. Checkdamagedparts.Beforefurtheruseofthemachine,
aguardorotherpartthatisdamagedshouldbecarefully
checked to determine that it will operate properly and
perform its intended function. Check for alignment of
movingparts,bindingofmovingparts,breakageofparts,
mounting and any other conditions that may affect its
operation.A guardor other partthat isdamaged should
beproperlyrepairedorreplaced.
17. Provide for adequate space surrounding work area and
non‐glare,overheadlighting.
18. Keeptheflooraroundthemachinecleanandfreeofscrap
material,oilandgrease.
19. Keep visitors a safe distance from the work area. Keep
childrenaway.
20. Make your workshop child proof with padlocks, master
switchesorbyremovingstarterkeys.
21. Give your work undivided attention. Looking around,
carrying on a conversation and “horse‐play” are careless
actsthatcanresultinseriousinjury.
22. Keep an ergonomic body position. Maintain a balanced
stanceatalltimessothatyoudonotfallorleanagainst
thechuckorothermovingparts.Donotoverreachoruse
excessiveforcetoperformanymachineoperation.
23. Usetherighttoolatthecorrectspeedandfeedrate.Do
notforceatoolorattachmenttodoajobforwhichitwas
not designed. The right tool will do the job better and
safer.
24. Themachineisintendedforindooruse.Toreducetherisk
ofelectricshock,donotuseoutdoorsoronwetsurfaces.
25. Donothandleplugormachinewithwethands.
26. Userecommendedaccessories;improperaccessoriesmay
behazardous.
27. Maintain tools with care. Keep tools sharp and clean for
the best and safest performance. Follow instructions for
lubricatingandchangingaccessories.
28. Turn off machine and disconnect from power before
cleaning.Useabrushorcompressedairtoremovechips
ordebris;donotusebarehands.
29. Donotstandonthemachine.Seriousinjurycouldoccurif
themachinetipsover.
30. Never leave the machine running unattended. Turn the
poweroffanddonotleavethemachineuntilitcomesto
acompletestop.
31. Remove loose items and unnecessary work pieces from
theareabeforestartingthemachine.
32. Pullthemainsplugifthemachineisnotinuse.
33. Makesuretheworkpieceissecurelyclamped.

5
Familiarizeyourselfwiththefollowingsafetynoticesusedinthismanual:
WARNING:Thismeansthatifprecautionsarenotheeded,itmayresultinserious,orpossiblyevenfatal,injury.
 CAUTION: This means that if precautions are not heeded, it may result in minor injury and/or possible machine
damage.

SAVETHESEINSTRUCTIONS
WARNING:
Thesesymbolsblowadvisethatyoufollowthecorrectsafetyprocedureswhenusingthismachine.


 Readandunderstandtheentireuser
 manualbeforeattemptingassemblyor
 machineoperation.



 Alwayswearapprovedworkingoutfit
 Wearsafetygoggles.
 Wearearprotection.


 Alwaysweartheapprovedworkingoutfit
 Wearsafetyshoes.
 Removetie,rings,watches,jewellery.
 Rollupsleevesaboveelbows.
 Removealllooseclothingandconfine
longhair


 Makeallmachineadjustmentsor
 maintenancewiththemachineunplugged
fromthepowersource.





Any work piece stock extending the rear
end of the headstock must be covered
on its entire length. High danger of injury


 Donotoperatethismachineunderthe
 influenceofdrugs,alcoholormedication



 Donotweargloveswhileoperatingthis
 machine




Connection and repair work on the
electrical installation may be carried out by
a qualified electrician only.



Never reach into the machine while it is
operating or running down.





6
3.1Designateduseandlimitationstouse
Themachineisdesignedforturninganddrillingmachinablemetalandplasticmaterialsonly.
Theworkpiecemustallowtosafelybeloaded,supportedandclamped.
Themachineisintendedforindooruse.TheprotectionratingoftheelectricalinstallationisIP54.
Toavoidtipping,themachinemustbebolteddownwithfouranchorbolts.
Ifusedforotherpurposes,PROMACdisclaimsanyrealorimpliedwarrantyandholdsitselfharmlessfromanyinjurythatmayresult
fromthatuse.
WARNING:
Themachineisnotsuitableformachiningmagnesium…highdangertofire!
Neverplaceyourfingersinapositionwheretheycouldcontactanyrotatingpartsorchips.
Checkthesaveclampingoftheworkpiecebeforestartingthemachine.
Don’texceedtheclampingrangeofthechuck.
Workpieceslongerthan3timesthechuckingdiameterneedtobesupportedbythetailstockorasteadyrest.
Avoidsmallchuckingdiametersatbigturningdiameters.Avoidshortchuckinglengthsandsmallchuckingcontact.
Donotexceedthemaxspeedoftheworkholdingdevice.
Usetherighttoolatthecorrectspeedandfeedrate.Donotforceatoolorattachmenttodoajobforwhichitwasnotdesigned.The
righttoolwilldothejobbetterandmoresafely.
Userecommendedaccessories;improperaccessoriesmaybehazardous.
Maintaintoolswithcare.Keepcuttingtoolssharpandcleanforthebestandsafestperformance.
Followinstructionsforlubricatingandchangingaccessories.
Donotattempttoadjustorremovetoolsduringoperation.
Neverstoparotatingchuckorworkpiecewithyourhands.
Chooseasmallspindlespeedwhenworkingunbalancedworkpiecesandforthreadingandtappingoperations.
Anyworkpiecestockextendingtherearendoftheheadstockmustbecoveredonitsentirelength.Highdangerofinjury!
Longworkpiecesmayneedasteadyrestsupport.Alongandthinworkpiececansuddenlybendathighspeedrotation.
Nevermovethetailstockortailstockquillwhilethemachineisrunning.
Removecuttingchipswiththeaidofanappropriatechiphookwhenthemachineisatastandstillonly.
Measurementsandadjustmentsmaybecarriedoutwhenthemachineisatastandstillonly.
Maintenanceandrepairworkmayonlybecarriedoutafterthemachineisprotectedagainstaccidentalstarting,pullthemainsplug.
Removelooseitemsandunnecessaryworkpiecesfromtheareabeforestartingthemachine.
Rotateworkpiecebyhandbeforeapplyingpower.Uselowestspeedwhenstartingnewworkpiece.
Tightenalllocksbeforeoperating.

3.2Remaininghazards
Whenusingthemachineaccordingtoregulationssomeremaininghazardsmaystillexist.
Therotatingworkpieceandchuckcancauseinjury.
Thrownandhotworkpiecesandcuttingchipscanleadtoinjury.
Chipsandnoisecanbehealthhazards.Besuretowearpersonalprotectiongearsuchassafetygogglesandearprotection.
Theuseofincorrectmainssupplyoradamagedpowercordcanleadtoinjuriescausedbyelectricity.
Whenopeningtheelectricalcabinet,thegrid‐feedingvoltagepersists.Thereforepayattentioneverytimeyouenterit.


7
4.0Specifications
Modelnumber............................................................................................................................................................................PBD‐2555V
Stocknumber…………………………………………………………………….......................................................................................................PBD‐2555V

Motorandelectricals:
 Motortype……………………………………………………................................................................................................DC‐motor,variablespeed
 Motorpower.................................................................................................................................................................................1.1kW
 Powersupply................................................................................................................................................................1~230V,PE,50Hz
 Protectionclass.................................................................................................................................................................................IP54
 Listedloadamps..................................................................................................................................................................................6A
 Machinelamp...................................................................................................................................................Halogenlamp24V,35W
 Coolantpump..................................................................................................................................................................................40W

Capacities:
 Centreheight...............................................................................................................................................................................125mm
 Swingoverbed............................................................................................................................................................................250mm
 Swingovercrossslide..................................................................................................................................................................140mm
 DistancebetweenCentres...........................................................................................................................................................550mm

Spindle:
 Spindlenosemounting...........................................................................................................shorttaper(1:4Ø53.975mm,Ø75x3xØ9)
 Spindlebore...................................................................................................................................................................................26mm
 Spindletaper.....................................................................................................................................................................................MT4
 Numberofspindlespeeds...........................................................................................................................................................variable
 Rangeofspindlespeeds...............................................................................................................................50~1250&100~2500/min

Tailstock:
 Tailstockramtravel.......................................................................................................................................................................65mm
 Tailstocktaper...................................................................................................................................................................................MT2

ToolSlide:
 Crossslidetravel..........................................................................................................................................................................110mm
 Topslidetravel..............................................................................................................................................................................70mm
 Toolsizemax...........................................................................................................................................................................12x12mm
 Leadscrewpitch..............................................................................................................................................................................3mm
 Longitudinalfeed............................................................................................................(6x)0.07/0,1/0.14/0.2/0.28/0.40mm/rev
 Metricthreads...................................................................................................................................................(21x)0.2~4.0mm/rev
 Inchthreads....................................................................................................................................................................(21x)8~56TPI

Materials:
 MachineBed..........................................................................................................Castiron,inductionhardenedandprecisionground
 Headstock,tailstock,slides.........................................................................................................................................................Castiron
 Spindlebearings...........................................................................................................................Taperrollerbearings,qualitylevelP5

 Soundemissioninidle1.....................................................................................................................................................73.4dB(LpA)
 Soundemissionduringcutting1........................................................................................................................................78.3dB(LpA)
1Soundemissionmeasuredin1mdistance,1.6maboveground.Thespecifiedvaluesareemissionlevelsandarenotnecessarilytobe
seenassafeoperatinglevels.Asworkplaceconditionsvary,thisinformationisintendedtoallowtheusertomakeabetterestimation
ofthehazardsandrisksinvolvedonly.

DimensionsandWeights:
 Overalldimensions,assembled(WxDxH)..............................................................................................1250x590x480(1300)mm
 Shippingdimensions(WxDxH)....................................................................................................1200x560x610&820x580x430mm
 Netweight(approximate).............................................................................................................................................................178kg
 Shippingweight(approximate).....................................................................................................................................................200kg

L=length;W=width;H=height;D=depth

Thespecificationsinthismanualwerecurrentattimeofpublication,butbecauseofourpolicyofcontinuousimprovement,JETreserves
therighttochangespecificationsatanytimeandwithoutpriornotice,withoutincurringobligations.


8
4.1Spindlenosemounting:


Figure4‐1:Spindlenosemounting


4.2Anchorboltholepattern:
Figure4‐2:Anchorboltpatternforlathebed(left)&machinestand(right)
WARNING:
Toavoidtipping,themachinemustbebolteddownwithfouranchorbolts(notprovided).




9
5.0MachineDescription

Figure5‐1:Machinedescription

 A............................................Machinecabinetstand
 B..................................................................Gearbox
 C..............................................................Pulleycover
 D...............................................................Headstock
 E............................................Chuckandchuckguard
 F..................................Toolpostandtoolpostguard
 G.........................................................Machinelamp
 H........................................................Coolantnozzle
 I....................................................................Topslide
 J.....................................................................Carriage
 K...................................................................Tailstock
 L............................................................Splashguard
 M...............................................................Lathebed
 N..............................................................Leadscrew
 O..................................................................Chiptray
 P.......................................................................Apron
 Q.........................................................Anchorpoints



Figure5‐2:Machinedescription

 R...........................................Feedspeedselectknob
 S........................................Feedforward/off/reverse
 T......................................................CoolantON/OFF
 U............................................SpindlepowerON/OFF
 V.........................................Spindleforward/reverse
 W....................................Variablespeedselectknob
 X.......................................................EmergencyStop
 Y..............................................Spindlespeeddisplay
 Z...................................................Apronhandwheel
 AA..........................................Crossslidehandwheel
 BB............................................Topslidehandwheel
 CC........................................................Half‐nutlever

Figure5‐3Machinedescription

 VV.........................................................Topslidelock
 XX......................................................Crossslidelock
 YY...................................Topslidetaperadjustment
 ZZ...........................................................Carriagelock

10
6.0SetupandAssembly
WARNING:
Readandunderstandtheentirecontentsofthismanual
beforeattemptingassemblyoroperation.Failuretocomply
maycauseseriousinjury.
6.1Unpackingandcleanup
Removeallcontentsfromshippingcrateandcomparepartsto
thecontentslistinthismanual.Ifshippingdamageoranypart
shortages are identified, contact your distributor. Do not
discard crate or packing material until machine is assembled
andrunningsatisfactorily.
Cleanallrustprotectedsurfaceswithkeroseneoralight
solvent.Donotuselacquerthinner,paintthinnerorgasoline,
asthesecandamageplasticcomponentsandpaintedsurfaces.
6.2Shippingcontents
1 Machine
1 Cabinet stand
1 Coolant facility
1 Machine lamp
1 125mm 3-jaw universal chuck
1 125mm 4-jaw independent chuck
1 Chuck guard
1 4-way tool post
1 Tool post guard
1 Set of change gears
1 MT4 fixed centre
1 MT2 fixed centre
1 Steady rest
1 Follow rest
1 Operating tools in tool box
1 Oil can
1 Operating instructions and parts manual

6.3Assembly
Themachinecomescompletelyassembled.
Installthedrivebelt(V‐belt).
Inspectthatallfastenersaretight.

6.4Initiallubrication
The machine must be serviced at all lubrication points before
it is placed into service (see chapter 11.1 for lubrication).

6.5Installation
Unbolt the lathe from the shipping crate bottom.
Use heavy duty fibre belt for lifting the machine off the pallet.
Warning:
The machine is heavy (200 kg)!
Assure the sufficient load capacity and proper condition
of your lifting devices.
Never step underneath suspended loads.
Toavoidtipping,themachinemustbebolteddownwithfour
anchorbolts(notprovided).
To avoid twisting the bed, make sure the setup surface is
absolutely flat and level.
Loosen anchor bolts, shim and tighten bolts if needed.
The machine must be level to be accurate !

7.0ElectricalConnections
WARNING:
Allelectricalconnectionsmustbedonebyaqualified
electricianincompliancewithalllocalcodesandordinances.
Failuretocomplymayresultinseriousinjury.
The PBD‐2555V Metal Lathes are rated at 1~230V, PE, 50Hz
power supply. The machines come with a plug designed for
useonacircuitwithagroundedoutlet.
Mainsconnectionandanyextensioncordsandplugsused
mustcomplywiththeinformationonthemachinelicense
plate.
Themainsconnectionmusthavea16Asurge‐prooffuse.
OnlyuseextensioncordsmarkedH07RN‐F,withwires1,5mm2
ormore.
Thetotallengthofcordmaynotexceed18Meter
Powercordsandplugsmustbefreefromdefects.
Connectionsandrepairstotheelectricalequipmentmayonly
becarriedoutbyqualifiedelectricians.
Themachineisequippedwith1.8mpowercordandplug.
Beforeconnectingtopowersource,besuremainswitchisin
offposition.

7.1Groundinginstructions
Thistoolmust be grounded.In the eventofamalfunction or
breakdown, grounding provides a path of least resistance for
electriccurrenttoreducetheriskofelectricshock.Thistoolis
equipped with an electric cord having an equipment‐
groundingconductorandagroundingplug.Theplugmustbe
inserted into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.
WARNING:
Improperconnectionoftheequipment‐groundingconductor
canresultinariskofelectricshock.Checkwithaqualified
electricianorservicepersonifyouareindoubtastowhether
theoutletisproperlygrounded.Donotmodifytheplug
providedwiththetool.
The green/yellow conductor is the equipment‐grounding
conductor.Ifrepairorreplacementoftheelectriccordorplug
is necessary, do not connect the equipment‐grounding
conductortoaliveterminal.
Useonly3‐wireextensioncordswithgroundingplugs.

11
Repairorreplacedamagedorworncordimmediately.
7.2Extensioncords
Theuseofextensioncordsisdiscouraged;trytoposition
machines near the power source. If an extension cord is
necessary,makesureitisingoodcondition.
Anundersizedcordwillcauseadropinlinevoltageresultingin
lossofpowerandoverheating.
OnlyuseextensioncordsmarkedH07RN‐F,withwires1,5mm2
ormore.
Thetotallengthofcordmaynotexceed18Meter
Extensioncordsandplugsmustbefreefromdefects.


8.0Adjustments
8.1Changingspindlespeedrange
Thespeedsofthelathearecontrolledbythevariablespeed
selectknob(W,Fig5‐2)aswellasthepositionofthebelton
thepulleys(Fig8‐1).

Figure8‐1:Spindlespeedrangesetup

A.........50~1250RPM..........formaximumtorque.
B..........100~2500RPM........formaximumspeed.

Removethepulleycover(C,Fig5‐1)tochangethebelt
position.Reinstallthepulleycover.
8.2Changegearsetup
Removethepulleycover.
Therotationalspeedoftheleadscrew,andhencetherateof
feedofthecuttingtool,isdeterminedbythegear
configurationandbythefeedspeedselectlever(R,Fig5‐2).
Assemblethegearswithdesiredsetup(Fig8‐2)

Figure8‐2:Changegearsetup
Adjustgearstomeshwithupperandlowergear.
Placing ordinary paper in between gears helps to adjust for
correctgearspacing(…removethepaperafterwards!).
Reinstallthepulleycover.





12
8.3Taperturningwithtailstock
Mounttheworkpiecefittedwiththedrivedogbetween
centres.Thedrivedogisdrivenbythefaceplate.
Lubricatethetailstockcentrewithgreasetopreventtipfrom
overheating.
Figure8‐3:Taperturningbetweencentres
Toturnataper,offsetthetailstock,loosenthelockingscrews
(Z,Fig8‐3)andusescrews(Y)toadjust.
After taper turning, the tailstock must be returned to its
originalposition.Turnatestpieceandadjustuntilthemachine
turnsaperfectcylinder.
8.4Taperturningwithtopslide
Byanglingthetopslide,tapersmaybeturned.
Loosentwohexnuts(A,Fig8‐4)androtatethetopslide
accordingtothegraduatedscale(B).

Figure8‐4:Taperturningwithtopslide

8.5Threejawuniversalchuck
Withthisuniversalchuck,cylindrical,triangularandhexagonal
stockmaybeclamped(Fig8‐5).
Figure8‐5:Threejawuniversalchuck
Toholdbigdiameterstock,asetofODchuckjawsissupplied.
Thejawsneedtobeinsertedtothechuckinthecorrectorder.
UseMolykotePasteG(oradequategrease)tolubricatethe
jaws.

8.6Fourjawindependentchuck(Optional)
This chuck has four independently adjustable chuck jaws (Fig
8‐6).
These permit the holding of square and asymmetrical pieces
andenablesaccurateconcentricset‐upofcylindricalpieces.
Figure8‐6:Fourjawindependentchuck


13
8.7Livecentre(Optional)
Thelivecentre(Fig8‐7)ismountedinballbearings.
Itsuseishighlyrecommendedforspeedsabove500RPM.
Figure8‐7:Livecentre
Toejectthelivecentre,fullyretractthetailstockquill.


8.8Steadyrestandfollowrest
The rests prevent flexing of long and thin work pieces under
pressurefromthetool.
Thesteadyrest(Fig8‐8)servesasasupportforlongershafts
andensuresasafeandchatterfreeoperation.
Figure8‐8:Steadyrest

The follow rest (Fig 8‐9) is mounted on the carriage and
followsthemovementofthetool.
Figure8‐9:Followrest

Setthefingers(2)snugbutnotoverlytight.
Lubricatethefingerstopreventprematurewear.
 

14
9.0OperatingControls
RefertoFigure9‐1:
 R.........................................................Feedselectknob
 S...........................................Feedforward/off/reverse
 T..........................................................CoolantON/OFF
 U..............................................SpindlepowerON/OFF
 V.............................................Spindleforward/reverse
 W.......................................Variablespeedselectknob
 X..........................................................EmergencyStop
 Y..................................................Spindlespeeddisplay

Figure9‐1:OperatingControls

10.0MachineOperation
10.1Cuttingexecution
Beforestartingthemachinechecktheproperchucking.
Close the chuck guard and pulley cover before you start the
machine.
Selectrunningdirection,forwardorreverse(V,Fig9‐1).
You can start the machine with the green ON‐button (U).
TheredOFF‐buttonstopsthemachine.
Thespeedcanbeadjustedwiththevariablespeedselectknob
(W).
Thespindlespeedwillbeshownonthedisplay(Y).
Theemergencystopbutton(X)stopsallmachinefunctions.
Turnemergencystopbuttonclockwisetoreset.
The work lamp (G, Fig 5‐1) operates independently; ON/OFF
switchisontopoflamphousing.
Unplugthemachineifnotinuse.
10.2Chucking
Donotexceedthemaxspeedoftheworkholdingdevice.
Jawteethandscrollmustalwaysbefullyengaged.Otherwise
chuckjawsmaybreakandflyoffinrotation(Fig10‐1).

Figure10‐1:Poorjawengagements
Avoidlongworkpieceextensions.Partsmaybend(Fig10‐2)or
flyoff(Fig10‐3).Usetailstockorresttosupport.

Figure10‐2:Workpiecetoolong

Figure10‐3:Workpiecetoolong
Avoid short clamping contact (A, Fig 10‐4) or clamping on a
minordiameter(B).Facelocateworkpieceforaddedsupport

Figure10‐4:Poorclamping

15
10.3CuttingToolSetup
The cutting angle is correct when the cutting edge is in line
with the centre axis of the work piece. Use the point of the
tailstockcentreasagaugeandshimsunderthetooltoobtain
thecorrectcentreheight(Fig10‐5).

Figure10‐5:Cuttingtoolsetup
Useaminimumoftwoscrewstoclampthecuttingtool.
Avoidlargetoolextensions.

10.4Recommendedspindlespeeds

ATTENTION:
Generallyspeaking,thesmallerthecutdiameter,thegreaterthe
RPMrequired.Softmaterialsrequirehigherspeeds;hardmetals
slowerspeeds.
Metalisusuallymachinedwithcoolantorcuttingoilapplied.
Recommended speeds for cutting 10mm diameter, with HSS
tools(Highspeedsteeltools):
Plastic:..............................................................2500RPM
Aluminium:.......................................................2500RPM
Brass:................................................................1000RPM
Castiron:..........................................................1000RPM
Mildsteel:...........................................................800RPM
Highcarbonsteel:..............................................600RPM
Stainlesssteel:....................................................300RPM
Forcarbidetools(HM),5timeshigherspeedscanbechosen.

Forexample:
Turningmildsteelatadiameterof20mmallows
WithHSStool......................................................400RPM
Withcarbidetool..............................................2000RPM

10.5Manualturning
Aprontravel(Z,Fig10‐6),crosstravel(AA)andtopslidetravel
(BB)canbeoperatedforlongitudinalandcrossfeeding.

Figure10‐6:Machinecontrols
Thecorrectfeeddependsonthematerialtobecut,thecutting
operation,thetypeoftool,therigidityoftheworkpiece
chucking,thedepthofcutandthedesiredsurfacequality.

10.6Turningwithautofeed
Movethehalf‐nutlever(CC,Fig10‐6)down,toengagethe
automaticlongitudinalfeed.Moveituptodisengage
Three feed rates are readily available by rotating the feed
selectknob(R,Fig9‐1).
Forexample:
Operation feed/rev selectknob
Stockremoval 0,28mm................................III
Finishingcut 0.14mm.................................II
Microfinishingcut 0.07mm..................................I
NOTE:Threeadditionalfeedratesareavailablewithdifferent
changegearsetup(Fig10‐7).

Figure10‐7:Availablefeedrates
Thecorrectfeeddependsonthematerialtobecut,thecutting
operation,thetypeoftool,therigidityoftheworkpiece
chucking,thedepthofcutandthedesiredsurfacequality.
Whenroughingbigdiametersreducethedepthofcut!

16
10.7Threadcutting
Threading is performed in multiple passes with a threading
tool.
Eachdepthofcutshouldbeabout0,2mmandbecomelessfor
thefinishingpasses.
A)Tocutinchandmetricthreads
Set the machine up for the desired threading pitch (see
chapter8.2).
Selectthelowestpossiblespindlespeed.
Engagethehalvenut(CC,Fig10‐6).
NOTE:Thehalvenutmuststayengagedduringtheentire
threadingprocess.
‐Setthetoolupforthethreadingpass.
‐Startthemotor.
‐Whenthetoolapproachestheendofcut,stopthemotorand
atthesametimebackthetoolout,sothatitclearsthethread
diameter.
‐Startthemotorinreversedirection,letthecuttingtooltravel
backtothestartingpoint.
Repeatthesestepsuntilyouhaveobtainedthedesiredresults.

B)Tocutmetricthreadswithpitch0,4/0,5/1,0/2,0mm:
Thehalvenutcanbeopenedattheendofcut,ratherthanthe
motorbeingstoppedandreversed.

10.8Drillingoperation
UseadrillchuckwithMT2arbor(option)toclampcentredrills
andtwisteddrillsinthetailstock(Fig10‐8).

Figure10‐8:Drillingoperation
Forrecommendedspeedsrefertosection10.4
Toejectthedrillchuck,fullyretractthetailstockquill.

11.0User‐Maintenance
WARNING:
Beforeanyinterventiononthemachine,disconnectitfrom
electricalsupply,pullthemainsplug.Failuretocomplymay
causeseriousinjury.
Animportantsecurityfactoristhecleaningofthemachine,of
bed,carriageandslides,ofthefloorandthesurrounding
places.
Looseobjectscouldcomeintocontactwiththemovingchuck
orworkpiece,creatinghazards.
Emptythechiptrayregularly.
Replacethecoolantregularly,followmanufacturer’sadvice.
Checkthatboltsaretightandelectricalcordsareingood
condition.Ifanelectricalcordisworn,cut,ordamagedinany
way,haveitreplacedimmediately.

11.1Lubrication
Spindlebearingsarepre‐lubricatedandsealed,andrequireno
furtherlubrication.
Weekly apply oil:
DIN 51502 CG ISO VG 68
(e.g. BP Maccurat 68, Castrol Magna BD 68, Mobil Vectra 2)
1…oilballsonchangegearhubs
2…oilbedwayslightly
3…oiltailstockquilloverentirelength
4…oilleadscrewonentirelength
5…oilballonleadscrewbracket
6…oilballsontopslide
7…oilballsontailstock
8...oilballsoncarriage
9...oilballsonapron

Monthly apply grease:
DIN 51807-1 non slinging grease
(e.g. BP L2, Mobilgrease Special).
10…greaseteethofchangegears
11…greaserackoverentirelength

Gearboxoil:
DIN51517‐2CLISOVG68
(e.g.BPEnergolHLP68,MobilDTEOilHeavyMedium)
Oilmustbeuptoindicatormarkinoilsightglass.
Incase,fillupwithoilbyremovingplugonrightsideofgear
box.


17
12.0Troubleshooting
Symptom PossibleCause Correction*
Lathewillnotstart.
Latheunpluggedfromwall,ormotor. Checkallplugconnections.
Fuseblown,orcircuitbreakertripped. Replacefuse,orresetcircuitbreaker.
Corddamaged. Replacecord.
Chuckguardnotclosed. Closechuckguard.
Pulleycoverremoved Installpulleycover
Lathedoesnotcomeuptospeed. Extensioncordtoolightortoolong. Replacewithadequatesizeandlengthcord.
Lowcurrent. Contactaqualifiedelectrician.
Lathevibratesexcessively.
Baseonunevensurface. Locatelatheonevenfloor.
Lathenotboltedtothefloor Boltmachinetothefloor
Unbalancedworkpiece Reducespeed
Workpiecedeflection Improvechuckinglengthordiameter,support
ontailstockend
Tooldeflection Reducetoollength
Slidebacklash Adjustslides
Slidesrunningdry Lubricatewithoil
Dulltooltip Re‐sharpenorchangetool
Chiploadtoohigh Reducedepthofcutorfeed
Noisyoperation Drychangegearhubs. Lubricatewithoil.
Drychangegears Lubricatewithgrease.
Tooltipburns
Cuttingspeedtoohigh Reducespindlespeed
Dulltooltip. Re‐sharpenorchangetool
Drycutting. Usecoolant.
Feedingtooslowly. Increasefeedrate.
Machineturnsataper.
Tailstockalignmentisoffset. Aligntailstockposition.
Machinebedistwisted. Standsupportingsurfacemustbeflat.Shimif
needed
Workpiecedeflection. Reducedepthofcutorfeed
Drillchuckorarbordoesnotstay
inplace.
Dirt,grease,etc.onarbor,chuck,ortailstock
quill
Cleanallmatingsurfacesthoroughlywitha
cleaner‐degreaser.
*WARNING:Somecorrectionsmayrequireaqualifiedelectrician.
Table1
13.0EnvironmentalProtection
Protecttheenvironment.
Disposeallpackagingmaterialinanenvironmentalfriendlymanner.
Disposecoolantinanenvironmentallyfriendlymanner.
Yourappliancecontainsvaluablematerialswhichcanberecoveredorrecycled.Pleaseleaveitataspecializedinstitution.

14.0AvailableAccessories
RefertotheJETpricelist.

18
15.0ReplacementParts

PBD‐2555VAssemblyBreakdown‐1
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19

PBD‐2555VPartsListforBreakdown‐1


Index Part   
No. No. Description Size Qty.

102.......PBD2555V‐1...........................FLATKEY..................................................................4x12mm.....................1
107.......PBD2555V‐1‐107....................LATHEBED....................................................................................................1
108.......PBD2555V‐2...........................HEXAGONSOCKETSCREWM8×12.........................M8×12........................1
109.......PBD2555V‐3...........................HEXAGONSOCKETSCREWM5×12.........................M5×12.........................5
110.......PBD2555V‐4...........................BALLOILER..............................................................6...................................1
111.......PBD2555V‐1‐111....................RIGHTBEARINGPEDESTAL..........................................................................1
112.......PBD2555V‐5...........................HEXAGONSOCKETSCREWM6×16........................M6×16.......................4
113.......PBD2555V‐6...........................FLATKEYTAPERPIN6×22.......................................DIN6885.......................2
114.......PBD2555V‐1‐114....................LEADSCREW.................................................................................................1
115.......PBD2555V‐1‐115....................RACK.............................................................................................................1
116.......PBD2555V‐7...........................HEXAGONSOCKETSCREWM4×16.........................M4×16.........................3
117.......PBD2555V‐1‐117....................ADJUSTINGFLANGE.....................................................................................1
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20

PBD‐2555VAssemblyBreakdown‐2
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