>> P.32
❸Mountingofbed-sideway・Properlyalignthewaywithmountingsurfaceandtemporarilytightenfixingscrewsevenlytothetighteningtorque.・WhilemakingthewaystickingtoBsurface(refertoFig.27)tight,fullytightenthescrewstothespecifiedtorque.・Whenhighrunningaccuracyisrequired,fullyandevenlytightenthemtothespecifiedtorquewhilecheckingtheparallelismoftheracewayalongthefulllengthoftheway.・TypicaltighteningtorqueforfixingscrewisaccordingtoTable10inpageⅡ-20.❺Operationoftableandbed・Makealignmentofthepositioninheightandcrossdirectionsothattherollercagecanbeinsertedbetweenthetable-sidewayandbed-sideway.・Carefullyinsertitatapproximatecenterofthewaylength.Atthispoint,becarefulnottodeformthecage.therollercageandassembly・Mountendscrewsandendstopperofeachway.・Pushtheentiretableagainstthepreloadadjustingscrewstomakeandtemporaryadjustmentuntiltheclearancebetweenwaysbecomeszero.thepreloadadjustingscrewstightenΔ・Fullystrokethetablesoftlyandcorrecttherollercagepositiontothecenter.ΔAΔAA.giF28Accuracyofwaymounting❹Mountingoftable-sideway・Properlyalignthefixing-sidewaywithmountingsurfacefixingscrewsevenlytotheandtemporarilytightentighteningtorque.・Whilemakingthefixing-sidewaystickingtoCsurfacetight,fullytightenthescrewstothespecifiedtorque.・Setbackthepreloadadjustingscrewsinadvance,makethepreload-adjusting-sidewaystickingtothemountingsurface,andthentemporarilytightenfixingscrewslightlytotheeventorque.Fixing-sidewayCsurfacePreload-adjustment-sidewayPreloadadjustingscrew.giF29Mountingoftable-sideway.giF30Positionalignmentbeforeoperation❻Preloadadjustment・Preloadadjustmentisperformedwithfixingscrewsofthepreload-adjusting-sidewaytightenedtemporarily.・Preloadadjustmentisstartedfromthepreloadadjustingscrewatthecenterofwaylengthandthenbothendsinturn.・Whilemeasuringtheclearanceonthetablesides,tightenthepreloadadjustingscrewssubsequentlyuntildeflectionofthedialgaugestops.Measurethetighteningtorqueforpreloadadjustingscrewsatthispoint.・Whenadjustingpreloadadjustingscrewneareitherend,strokethetablesoftlyandcheckthatthecylindricalrollerisonthepreloadadjustingscrewsection.・Aftertheaboveprocedure,theclearancebecomeszeroorinslightpreloadstate,butpreloadisstillnotadjustedevenly.Withthesameprocedureagain,re-adjustallthepreloadadjustingscrewsevenlytothetorquepreviouslymeasured..giF31Exampleofpreloadadjustmentmethod1N=0.102kgf=0.2248lbs.1mm=0.03937inchⅡ-24
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