Electronic Scraper and accessories przedstawicielstwo firm : w Polsce : Biuro Handlowe: 00-238 Warszawa ul. Długa 23/25 II piętro, pok. 210 tel.: 0 22 635 60 10 fax: 0 22 635 60 15 kom.: 0 502 209 516 e-mail : [email protected] www.biax.pl www.timexsa.pl Siedziba główna 00-203 Warszawa ul. Bonifraterska 17, Bud. North Gate, 22 p. Summary 3CAPER4YPES 2 + 3 + 4 !PPLICATION 4 + 5 + 6 + 9 /PERATING)NSTRUCTIONS 5 2ECOMMENDEDVALUE 7+8 3CRAPINGOFSEVERALMATERIALS 10 3CRAPING4OOLS 11+12+13+14 (ANDSCRAPER %NGINEERS|BLUE 2OLLER 15 3CRAPERBLADEANDGRINDINGMACHINE 15 Type BS 40 BIAX Universal Scraper, heavy-duty model particularly suitable for: sEXTREME HEAVY SCRAPING WORK IN LARGE MACHINE CONSTRUCTION sSTEEL SCRAPING WORK ON GUIDE BEDS AND MACHINE COLUMNS IN CASE OF TURBINES TRANSMISSIONS AND IN PUMP CONSTRUCTION /RDER NUMBER 230 V – 200 040 100 115 V – 200 040 110 Type BL 40 BIAX Universal Scraper, light model particularly suitable for: sHEAVY SCRAPING sSTANDARD SCRAPING slNE SCRAPING sPRECISION SCRAPING AND OIL TIGHT SCRAPING !LSO SUITABLE FOR DOVETAIL GUIDES AND PRISMS IN CONJUNCTION WITH SPECIAL BLADES /RDER NUMBER 230 V – 200 040 130 115 V – 200 040 140 Accessories at the BS 40 incl. GRAB HANDLE RATCHET SCREW at the BL40 NOT INCL /RDERNUMBER RATCHET SCREW 201 324 905 grab handle 203 004 748 2 Type BL 10 BIAX Universal Scraper, light model particularly suitable for: sPLASTIC SCRAPING sSTANDARD SCRAPING slNE SCRAPING sPRECISION SCRAPING AND OIL TIGHT SCRAPING !LSO SUITABLE FOR DOVETAIL GUIDES AND PRISMS IN CONJUNCTION WITH SPECIAL BLADES /RDER NUMBER 230 V – 200 040 300 115 V – 200 040 310 ype HM 10 AX Half-moon Pattern Scraper articularly suitable for: CRAPING OIL POCKETS OR OPTICALLY PLEASURING SURFACES DER NUMBER 230 V – 200 040 330 115 V – 200 040 340 3 Type DL 40 Accessories (not incl.) /RDERNUMBER Scraping Scraping interrupted surfaces 7HEN WORKING ON MOTOR BLOCKS PUMPS TURBINE AND TRANSMISSION HOUSINGS ETC THE SURFACES ARE lRST OF ALL CLEANED DEBURRED AND THEN APPLIED THE ENGINEERS BLUE )N CASE OF BOREHOLES AND THREADED HOLES THE MATERIAL APPEARS AT THE EDGE OF THE HOLE 4HIS BURR MUST ALWAYS BE REMOVED BEFORE INITIAL SCRAPING )N CASE OF HOLES OR OTHER INTERRUPTIONS IT IS NECESSARY TO hSCRAPE ROUNDv THESE AND UNDER NO CIRCUMSTANCE TO hSCRAPER OVERv THEM )N CASE OF INTERRUPTIONS BY OIL GROOVES ALWAYS MAKE SURE THAT A BLADE WITH A LARGE CUTTER CURVATURE IS USED 4HIS PREVENTS THE BLADE FROM HOOKING INTO THE OIL GROOVE )N ORDER TO FACILITATE SCRAPING IF POSSIBLE THE OIL GROOVE SHOULD BE MILLED AFTER SCRAPING Scraping dovetails and prisms "ECAUSE OF THEIR POOR ACCESSIBILITY BY HAND IT IS DIFlCULT TO SCRAPE THE DOVETAIL GUIDES WHICH FREQUENTLY OCCUR IN MACHINE TOOL PRODUCTION &OR THIS REASON AN ANGLED PROLONGED CLAMP HOLDER WAS DEVELOPED FOR THE SCRAPER ", 4HE BLADE HAS A THIN CARBIDE TIP SO THAT THE DOVETAIL CAN BE SCRAPED UP TO THE ACUTE ANGLE )F THE DOVETAIL OR PRISMS GUIDE IS EASILY ACCESSIBLE A TOOL DISPLACED BY ª IS RECOMMENDED 4HIS MODEL DOES NOT HINDER THE SKILLED WORKER AND PERMITS GOOD VISIBILITY OF THE WORKPIECE $OVETAIL GUIDE MAY NOT BE TOO STEEPLY SCRAPED %XPERIENCE HAS SHOWN THAT A SCRAPING DIRECTION AT ª TO THE GUIDE IS THE MOST ADVANTAGEOUS 4 Scraping The scraping tool – THE INmUENCE OF VARIOUS RADII AND ANGLES ON THE SCRAPING RESULTS 4HE TREATMENT OF EACH WORKPIECE WITH THE SCRAPER BEGINS WITH PRESCAPING OR ROUGHING )N THIS OPERATIONS IT IS NOT YET NECESSARY TO ENSURE SMALL BEARING POINTS 4HEREFORE A BLADE WITH A LARGE RADIUS IS USED IN ORDER TO ENABLE RATIONAL WORKING "LADES WITH A LARGE RADIUS ALSO HAVE A LARGE EFFECTIVE SURFACE WITH WHICH A WIDE SCRAPE IS OBTAINED /NLY AFTER SEVERAL SCRAPING OVER AND TOUCHING UP OPERATIONS DO MORE AND MORE BEARING POINTS APPEAR 4HE BLADE RADIUS MUST NOW BE SMALLER IN ORDER TO EFFECTIVELY TREAT THE INDIVIDUAL BEARING POINTS Operation of the scraper The scraper guarantees precision workmanship. Please note the following instructions: (OLD THE SCRAPER HEAD WITH YOUR LEFT HAND PUT FOUR lNGERS BELOW THE LEATHER STRAP AND THE THUMB OVER IT 4HE RIGHT HAND HOLDS THE MOTOR AND HELPS TO GUIDE THE SCRAPER ! LEFT HAND SHOULD HOLD THE MACHINE IN REVERSE 7HEN WORKING IN A HORIZONTAL POSITION PRESS THE SCRAPER AGAINST YOUR HIP 4HEREBY THE POWER OF RECOIL FORCE OF REACTION WILL BE ABSORBED Electronic adjustmentOFTHESTROKERATEMIN (only for electronic models) 4HE ADJUSTMENT WHEEL OF THE ELECTRONIC UNIT IS IN THE REAR Stroke adjjustment 4HE STROKE ADJUSTMENT IS IDENTICAL FOR THE TYPES "3 ", ", AND $, 3LIDE THE SCRAPER SHOE TO THE FRONT REVERSAL POINT )N THIS POSITION THE ADJUSTMENT SCREW APPEARS ON THE UNDERSIDE OF THE HOUSING 5SE THE ENCLOSED !LLEN WRENCH 37 FOR STROKE ADJUSTMENT 4URNING T RIGHT INCREASES THE STROKE TURNING TO LEFT REDUCES IT 4HE HOLES IN THE BELL HELP TO POSITION THE ADJUSTMENT SCREW CORRECTL 5 Operation Scraping 1st Step: Prescraping 4HE PART TO BE TRIMMEL HAS ALREADY BEEN PREPARED PRECISION MILLED DRESSEDORGROUND 4HElRSTSCRAPINGSTEPCREATESTHEBASE &ORMACHINESCRAPING ABLADEORSCRAPINGINSERTMMORMM WITHA LARGECUTTERRADIUSDEPENDINGONTHESIZEOFTHEWORKPIECE ANDASTROKE OFMMTOMMARECHOSEN4HECUTTEROFTHESCRAPINGTOOLISPLACED ONTO THE WORKPIECE AT AN ANGLE OF APPROX ª 4HE SCRAPER IS MOVED HORIZONTALLYACROSSTHEWORKPIECEATASPEEDTHATALLOWSTHESTROKETOJUST OVERLAP!FTERSCRAPINGTHECOMPLETESURFACE THISPROCEDUREISREPEATED ONCEAGAINANDATªTOTHElRSTSCRAPE 2nd Step: Plane scraping )NTHISCASE SCRAPINGISPERFORMEDPARALLELTOTHEOPPOSINGCORNERS4HIS PROCEDURE REQUIRES A SOMEWHAT SHORTER STROKE MMTO MM AND A NARROWERBLADEMM MMORMM !FTERTHESURFACEHASBEENPRESCRAPED THEPOINTPROJECTINGFROMTHEPLANE ORBEARINGACCURACYARESCRAPEDUNTILASATISFACTORYRESULTISOBTAINED 3rd Step: Finish scraping 4HE QUALITY OF THE SURFACE TO BE SCRAPED INCREASES WITH THE NUMBER OF BEARINGPOINTS)NITIALLY BEARINGPOINTSARELARGEANDEXISTONLYINASMALL NUMBER)F THE STROKE IS REDUCED MMTO MM AND IF MMOR MM SCRAPINGTOOLSAREUSED THELARGEBEARINGPOINTSARESCRAPEDOFFPROVIDED THATNOPRESSUREISAPPLIEDWHENGUIDINGTHESCRAPEROVERTHESURFACEITIS NOTNECESSARYTORAISETHESCRAPER !RHYTHMCANBEQUICKLYDEVELOPEDAND THERESULTISTHATSEVERALANDSMALLERBEARINGPOINTSAREDISTRIBUTEDOVERTHE ENTIRESURFACE Precision scraping, resp. oil-tight scraping 4HEMAXIMUMNUMBEROFBEARINGPOINTSMOSTLY PERSQUAREINCH RESULTS IN THE DISTRIBUTION OF lNE AND EXTREMELY lNES RECESSES OF «4HEY CAUSE GOOD ADHESION OF THE OIL lLM AND THUS CONSIDERABLE REDUCE THE CONDITION OF MIXEDFRICTIONDURINGSTART UP4HEDEPTHOFTHEOILPOCKETISDETERMINEDBYTHE DEMANDS WHICHWILLLATERBEPLACEDONTHESCRAPEDSURFACE,ARGELOADSREQUIRE RELATIVELY DEEP OIL POCKETS APPROX « IN ORDER TO GUARANTEE THE PERFECT FORMATIONOFANOILlLMEVENAFTERALONGPERIODOFOPERATION!NOILPOCKET DEPTH OF APPROX «IS EXPEDIENT FOR LOW LOADS 4HE DEEP OIL POCKETS ARE OBTAINEDBYUSINGASPRING TEMPEREDSCRAPERBLADEWITHASMALLRADIUS (OWEVER mATTERRECESSESAREOBTAINEDWITHALARGEBLADERADIUS4HECHOICEOF THESCRAPERCONTACTANGLEISALSOIMPORTANT!LARGECONTACTANGLECAUSESDEEP OILPOCKETS ANDASMALLCONTACTANGLECAUSESmATOILPOCKETS$EPENDINGONTHE APPEARANCEOFTHEPOINTS INPRECISIONANDOIL TIGHTSCRAPINGTHESEAREHANDLED MOREORLESSINTENSIVELY DEPENDINGONTHEIRBEARINGCAPACITY)NORDERTOOBTAIN AN INTERSPERSED APPEARANCE THE SURFACE IS SCRAPED IN FOUR DIRECTIONS EACH DISPLACEDBYªANDTHUSPATTERNSCRAPINGISUNNECESSARY3URFACESSCRAPEDTHIS WAYLOOKLIKEARBITRARILYCOMPOSEDCHESSBOARDS)NANYCASE THESAMEAMOUNT OF BEARING POINTS WILL BE OBTAINED AS IF THE SURFACE WERE HANDSCRAPED 4HE CORRECTSTROKELENGTHREFERTOTHEDIAGRAMP ASWELLASTHEUSEOFASPRING 6 TEMPEREDSCRAPERBLADEAREPRECONDITIONSFORTHIS Applications Recommended value All about scraping 3CRAPEOVERALLVISIBLEMARKSRESULTINGFORMGRINDING PLANING MILLINGETCATANGLESOFª ,ARGESTROKEWITH")!8CLAMPHOLDER+,AND")!8SCRAPINGINSERTXMM #LEANLAPPEDBLADESINCREASETHESMOOTHNESSOFTHESCRAPEDSURFACE SIMPLYSCRAPINGANDPREVENTMARKS 3CRAPEOVERTHESURFACE OVEROPERATION ALTERTHESCRAPINGDIRECTIONSOTHATTHESCRAPINGTOOLDOESNOTHOOKINTOTHERECESSES OFTHEPRECEDINGSCRAPING OVEROPERATION 5NIFORMLIGHTATTHEWORKPLACEWITHOUTSHADOWSISIMPORTANT !FTERSCRAPINGANDBEFORESPOTTING REMOVEALLSCHIPS )NCASEOFGRAYCASTIRON ALLHARDPLASTICSANDNON FERROUSMATERIALS USECARBIDE TIPPEDSCRAPINGTOOLS /NLYSCRAPEOVERHARDSTEELWITHCARBIDE TIPPEDSCRAPERBLADESORINSERTSWITHANEGATIVECUTTINGANGLE "ETTERREMOVALOFCHIPSISOBTAINEDBYMEANSOFALUBRICANT ,IGHTLYDYETHESPOTTINGTOOLSWITHTHESPOTTINGROLLER4HEBEARINGPOINTSCANNOTBESEENINTHEIRTRUESIZEIFTHEENGINEERS|BLUE ISTOOTHICKORUNEVEN 2EMOVESCRAPINGRESIDUESWITHAlNEGAINSHARPINGSTONE 7HENSPOTTING MOVETHESPOTTINGINSERTWITHUNIFORMMOVEMENTANDWITHOUTPRESSUREOVERTHESURFACE4OOMUCHORUNEVENPRESSURE RESULTSININCORRECTSCRAPING $ONOTMOVETHESPOTTINGINSERTTOOFAROVERTHECORNERSEXCESSIVEWEIGHTANDPRESSURERUINTHESCRAPINGPATTERN 2EPEATTHESCRAPINGPROCEDUREUNTILAMAXIMUMOFBEARINGAREAISOBTAINEDINCASEOFSLIDINGSURFACES ANDUPTOBEARINGAREA ISOBTAINEDINCASEOFmANGEDSURFACE 4HESCRAPINGDEPTHSCANBEDETERMINEDBYMEANSOFAPEAK TO VALLEYHEIGHTMEASURINGINSTRUMENT 3HARPENINGOODTIMETHEBLADEOFTHECARBIDE TIPPEDSCRAPERTOOLWITHTHE")!8SCRAPERBLADEGRINDINGANDLAPPINGMACHINE /NLYSHARPSCRAPINGTOOLSREMOVESMALLPARTICLESANDLEADTOGOODRESULTSWITHLITTLEEFFORT &REQUENTLYCLEANTHESPOTTINGINSERTWITHCLEANINGmUID 4HESCRAPINGTIMECONSISTSNOTONLYOFSCRAPINGBUTALSOOF2OUGHINGANDSPOTTINGTHEWORKPIECE#HECKINGTHESCRAPEDSURFACEFORBEARINGPOINTS -EASURINGPARALLELISMANDACCURATEPOSITIONING3HARPINGTHESCRAPINGTOOLS ,ARGESURFACEAREEASIERTOSCRAPETHANSMALL INTERRUPTEDSURFACE$OVETAILS PRISMSGUIDES RECESSESANDVERTICALSURFACEAREDIFlCULTTOSCRAPE Machine scraping or manual scraping? 4HEADVANTAGESOFMACHINESCRAPINGAREEVIDENTINPRACTICE4HETECHNICALDEVELOPMENTHASSURPASSEDTHEMETHODSOFTHEPASTANDCONTRIBUTEDTOWARDSTHE