APR APR-HHA User manual

APR‐HHAHEATERHEADREMOVE‐INSTALLINSTRUCTIONS
RequiredTools:
3/32”hexallenL‐key
3/32”hexallenkey(longstraightdrivertypepreferred)
7/16”hexallenkey
REMOVAL
1. MachineisOFF;headisattophomeposition(preferred)
2. Removeanynozzlesand/orvacuumcupsfromheaterhead/vacuumtube
3. Remove6xrearscrewsheadfacecover;disconnectLED2‐pinwireharnessandremovecover
4. Asshown,manuallyholdaircylinderleverindownpositiontoallowmovementofthevacuumtube
5. Placefingeratbottomofvacuumtubeandgentlyliftupwardtotopmost‘up’position
6. Releaseaircylinderlevertolocktubeinupposition(thiswillhelp‘protect’thetubewhenremovingheaterhead)
Headfacecover

7. Insidehead,locateanddisconnectlargewhite3‐pinpowerconnectorand4‐pinsmallRTDconnectorforAPR‐HHA
heaterhead
8. Locateandremove3xspring‐loadedAPR‐HHAheadmountingscrewsfrombottomholesasshown(3/32”allen
key);aslastscrewremovedholdtheHHAandcarefullyallowittodropto‘rest’position;itwillbeheldinplaceby
the2xairflowtubesinrear
9. WhileholdingtheHHAhead,removebothblue‐bandedandwhite‐bandedairflowtubesfromrearofheadand
slowlydropHHAheadbelowvacuumtubeendtoremovecompletely
IMPORTANT!WHLEREMOVINGHEADBECAREFULNOTTOBENDVACUUMTUBE!
4‐pinRTDconn
3‐pinPOWERconn
3xaccessholesfor
HHAmountscrews
3xaccessHHAmountingscrews
3/32”longstraightdrivertypehexallenkey
preferred
AIRFLOWTUBING
Blue‐bandedTOP
White‐bandedBOTTOM

10. Locatewasher,3xspringsandscrewsforre‐installationlater
INSTALLATION
11. Placewasherontopofheaterheadcenterhole
12. Place3xspringsinscrewlocationstopofheaterhead
13. Carefullyalignheaterheadcenterholetovacuumtubeandmoveheadupward
IMPORTANT!WHLEINSTALLINGHEADBECAREFULNOTTOBENDVACUUMTUBE!
14. Whileholdingheadinplace,carefullyinstall2xairflowtubestorearpipes
IMPORTANT:BLUE‐BANDEDTUBEinstalledatTOP,WHITE‐BANDEDTUBEinstalledatBOTTOM
Ifinstallingtheseflowtubesinerroritwillgenerateanovertemperrorwhenrunningheaterhead
15. Carefullymoveheadupward;install3xmountingscrewsthroughbottomholesandattachtheheadtothecasting
bottom(NOTE:3/32”hexallenkeywithlongstraightscrewdrivertypehandleispreferredtoolforinstallation)
16. Tightenall3xspring‐loadedmountingscrewsuntilthey‘stop’(allthewayup)

17. IMPORTANTSTEP!Useasmalltooltotightenthefemalesocketconnectorson4‐pinRTDconnectorasshown
18. Re‐installheaterhead4‐pinRTDconnectionandlargewhite3‐pinpowerconnectioninsidehead;besuretoroute
wiringawayfromvacuumtube,etc.tokeepfromgetting‘pinched’
19. Checkairflowtubingforbendsandkinks
INSTALLNOZZLELEVER
20. Placerodinsidenozzleleverholderandinstallnozzleleverbythreadingintoholeonnozzlering
21. Tightennozzleleverwithaslightturnusingpliers
22. Toadjustrotationtravel,pullofftheleverbootanduse.035hexallenkeytoadjustsmallsetscrewinsidelever
handle;whenrotatingthenozzleshouldhavesomeslightdragandnotbetooloose
Usesmallpointed
instrument(likepick)to
carefully“squeeze
together”sidesoffemale
“U”shapedconnectorin
ordertomakegood
connectionwithmalepins.
Becarefulnottodamage
connectororsqueezetoo
muchsothatmalepinwill
notfitinside
Alsousesomecontact
cleanersprayonboth
connectorsifpossible
4‐pinRTDconnector
Femalesockets
Checktubing

CHECK/ADJUSTNOZZLECO‐PLANARITYWITHBOARDLEVEL
Turnonmachineandopensoftware
Thefollowingprocedureisformakingsurethatthereflownozzleedgesareparallelorco‐planartopcbaorboardlevel
23. AttachareflownozzletotheAPRnozzlering.Thepreferrednozzlesizeisalargesize,NZA‐400‐400orNZA‐450‐
450forexample.
24. Ifavailable,installanunpopulatedpcbaintotheboardholder.Ifnecessary,reversemountthebottomplateofthe
opticalkitsobottomfacesup.Allthatisneededisaflatsurfaceatpcbaleveltocomparewithnozzleedge.
25. Verifythattheboardislevelinboardholder
26. RemoveanyVNZpipettefromthevacuumtube,itwillnotbenecessaryforthisprocedure.
27. BringtheheaddownwardinFASTspeeduntilheadstops.SwitchtoCOARSEspeedandbringdownreflownozzle
edgetoabout0.25”(10.0mm)aboveboardlevel.SwitchtoFINEspeedandadjustto5‐10milorasneeded.Bring
theheaddownuntilthereflownozzleedgesarejustaboveboardlevel.
28. Examineall4sidesofthereflownozzleedgeswithrespecttoboardlevel.All4sidesshouldbeparalleltoboard
level.
29. Ifnozzleedgesarenotparallelorco‐planar,adjustthe3spring‐loadedscrewsholdingtheheaterheadassemblyto
theheadcasting.Forside‐to‐side(pivot)adjustmentconcentrateon2rearscrews.Forfront‐to‐rear(pivot)
adjustmentconcentrateonfrontscrew.Finaladjustmentmayrequireacombinationofthe3adjustscrews.
NOTE:Ensurethat3screwsforholdingheaterheadassemblyarenottooloosesotheheaterheadishanging
looselyofftheheadcasting.Ifscrewsgettooloose,tightenupall3screwstogetanewstartingpointandstartco‐
planarityadjustmentover.
Nozzle leverNozzle ring Adjust set screw inside to
ti
g
hten nozzle rin
g

CENTER VACUUM TUBE IN NOZZLE
thefollowingadjustmentistohavethevacuumpipettecenteredasbestpossibleinsidethenozzlebox.
NOTE:nozzleadjustmentisdoneafternozzleco‐planarityadjustment.
30. AnycombinationofVNZvacuumpipetteandNZAreflowboxnozzlecanbeused,butformoreaccuracyin
adjustmentselectasmallerVNZandNZAcombination.ThefollowingwilluseVNZ‐05(5mm)andNZA‐060‐060
(6mmbox)asexample.
31. InstallVNZ‐03vacuumpipetteintovacuumtube.AttachNZA‐060‐060reflownozzle.
32. Insoftwaremanualmode,putthevacuumtubeinFREE.Useafingertoliftupvacuumpipettesothatitisatsame
approximatelevelasbottomnozzleedge,thenputthevacuumtubeinLOCK(oldsoft‐Down)tokeeppipeinplace.
33. Pull out the camera. In COARSE mode, lower the head to where the reflow nozzle bottom edge is about
1” (25.4mm) above the camera. Be careful not to hit the camera with the nozzle or pipe.
34. Insoftwareimagescreenturnthecamerabottomlampallthewaydownandthetoplampallthewayup.Using
softwarecameracontrols,zoominandfocussothebottomofthenozzleboxfillsthescreen.
4x nozzle bottom edges parallel to
pcba level 3x spring-loaded screws for heater
head assembly; access from
bottom

35. Ifthevacuumpipetteappearsoff‐centertotheedgesofthenozzlebox,loosen4holdingscrewsontheupper
heaterheadplate.
36. Manuallymovetheheaterassemblypositionuntilvacuumpipetteiscenteredinthenozzlebox.
37. Usingthelever,turnthenozzlefullrotationandstopateachsidetocheckcentering.Itmaybenecessarytodoa
“bestpossible”centeringadjustmentforvacuumpipettetoaccommodateeachsideofafullnozzlerotation(4
edges).
38. Aftercenteringthevacuumpipettetothenozzlebox,tightenthe4screwsontheupperplateandre‐verify
centering.
NOTE:Ifthe3spring‐loadedheaterheadscrewsdescribedinSection3areadjustedoffandnozzleishangingtoomuch
atanangleitmaynotbepossibletocenterthepipetteinthebox,thisiswhyitimportanttoperformnozzle‐to‐board
co‐planarityadjustmentbeforecentering.
BottomView
CHECKFUNCTIONS
39. Runthermalcyclefortopheaterhead
Pipe level with
nozzle edge
Vacuum cup center to nozzle box
4x nuts

40. CheckvacuumtubeFREEfunctioninmanualmode(ifheadismisalignedthetubemaycontactandscrapeatthe
bottomgrilleholeedge)