G.A.L. Gage CAT 30 Parts list manual

POBOX218●STEVENSVILLE,MI●49127
PHONE:269‐465‐5750●FAX:269‐465‐6385
WEBSITE:www.galgage.com
Cat30(Standard)andCat31(Metric)
ProductInformationandUsageGuide
(Import)(Metricisusedindemonstrations)
Metric Standard
ComponentsofGaugeandOverview:
TheCAT30(standard)andCAT31(metric)gaugesarecomposedof
stainlesssteelandcanbeusedtoobtainawiderangeof
measurements.Thesegaugesconsistsoffivemajorcomponents
fromwhichmeasurementscanbetaken.Theyaretherotatingfan,
workingedge,mainruler,sideslidewithpointandcenterslide.
Sometypesofmeasurementsthatcanbetakenincludebutournot
limitedto;buttweldheight,undercut,angleofpreparationorbevel,
gapsize,legoffilletweldthroatoffilletweldandthefaceofthe
buttweld.

POBOX218●STEVENSVILLE,MI●49127
PHONE:269‐465‐5750●FAX:269‐465‐6385
WEBSITE:www.galgage.com
ComponentsofGaugeandTolerances
RotatingFan
WorkingEdge
CenterSlide
SideSlidewithPoint
MainRuler

POBOX218●STEVENSVILLE,MI●49127
PHONE:269‐465‐5750●FAX:269‐465‐6385
WEBSITE:www.galgage.com
:
ApplicationandMethods
MeasuringtheHeightoftheButtWeld(Figure1)
Tomeasuretheheightofabuttweldfirstalignthesideslidewithpointandthemainruler
tozero.Tightenthescrewsothatthesideslidewithpointcannotmove.Straddletheweld
thatyouwishtomeasurein‐betweenthesideslidewithpointandtheworkingedgeofthe
gauge.Thesideslidewithpointandtheworkingedgeofthegaugeshouldcreatealevel
surfacewhichwillenableanaccuratemeasurementtobetaken.Loosenthescrewofthe
centerslideandslidethetipdowntothetopofthebuttweld. Tightenthescrewofthe
centerslideandtakemeasurement.
MeasuringtheLegoftheFilletWeld(Figure2)
Tomeasurethelegofafilletsettheworkingedgeofthegauge ontopoftheweld.Loosen
thescrewofthecenterslideandmoveuntilthebottomtipofthecenterslidetouchesthe
baseofwheretheweldlies.Tightenthescrewofthecenterslide.Themeasurementonthe
centerslidewillbethemeasurementforthelegofafillet.
Figure2
Figure1

ApplicationandMethods
Measuringthethroatofafilletweld(Figure3)
Tomeasurethethroatofafilletweldfirstsetthesideslidewithpointandthemain
rulertozero,thiswillensurethatyouareabletousetheslantededgesatthetop
withoutinterference.Positionthegaugesothattheoneslanted edgetouchesthe
baseofwheretheweldislocatedandtheotherslantededgetouchesjustabovethe
wheretheweldis.Thiswillallowthecenterslideaccesstothetopofthefilletweld.
Movethecenterpointdownsothatittouchesthetopoftheweldandtightenthe
screw.Readtheindicatingmeasurementfromthecenterslide.
Figure3
Measuringthefaceofabuttweld(Figure4)
Tomeasurethefaceofthebuttweldfirstmakesurethatthesideslidewithpointis
raisedsothatthepointisoutofthewayandwillnotinterferewithmeasuring.Also,
youwillbeusingthebackofthegaugeforthismeasurement.On thesidewiththeside
slidewithpointsetthebottomedgeofthegaugeononesideof theweld.Thenlower
therotatingfanuntilthepointtouchestheothersideoftheweld.Themeasurement
willbeindicatedonthebackofthegaugeonthechartprovided.
Figure4
Distributed by: ABQ Industrial LP USA
Tel: [phone] eFax: [phone]
Web: https://www.abqindustrial.net E-mail: [email protected]

ApplicationandMethods
Measuringtheangleofpreparation(bevel)
(Figure5)
Tomeasuretheangleofpreparation(bevel)usethebacksideof thegauge.Setthe
gaugeontopofthepipeorplacewheremeasurementisneeded.Thecenterslideshould
beparalleltothepipeorwheremeasurementisneeded.Lowertherotatingfanuntilthe
sidetouchestheanglethatneedstobemeasured.Readmeasurementfromchart
provided.
Measuringtheundercutofaweld(Figure6)
Tomeasurethedepthoftheundercutsetthecenterslidetozero
andtightenthescrew.Positionthesideslidewithpointoverthe
undercut.Lowerthesideslidewithpointintotheundercutand
tightenthescrew.Themeasurementforthedepthoftheundercut
canbereadoffthescalethatisonthesideslidewithruler.
Figure6
Figure5
Distributed by: ABQ Industrial LP USA
Tel: [phone] eFax: [phone]
Web: https://www.abqindustrial.net E-mail: [email protected]

ApplicationandMethods
MeasuringtheFit‐UpGap(Figure7)and(Figure8)
Tomeasurethefit‐upgapturnthegaugetothebackside.Lowertherotatingfansothatthe
pointofthegaugeisfreefromcontactwiththemaingaugeitself.Therangeofmeasurement
allowedonthepointoftheis0.5mmto5mm(1/32th to3/16th inches ).Lowerthepointin‐
betweenthegap.Continuetoloweruntilbothsidestouchthetopofthegap.Read
measurementfromthelinesontherotatingfan.
Figure7
Figure8
Distributed by: ABQ Industrial LP USA
Tel: [phone] eFax: [phone]
Web: https://www.abqindustrial.net E-mail: [email protected]