GE 5GEB22 manual Prat, Done, Alongthe, 93A41

GEK-91696D

1150HPACDrillingMotor,Model5GEB22

PARTNUMBERTABLE7OF.HUBHUBRISETEMPERATUREADVANCE,INDEGREESINCHABOVE(MM)SHAFTTEMPERATEMPERATURERISE

93A41

3

048

—3.302)048

1A237799

387°F(215°C)

84B519250P1

.1201—.1302(2.794

fdegresabove

6.

Heatthehubinanovenuntilithasreached

uniform

(thedsirednumbr

shafttemperature).Forexample,iftheshafttemperatur

is77°F(25°C),thehubisheatedto(ambient)77°F

(25°C)+(heatrise)387°F(215°C)=464°F(240°C)hubtemperature,whichismaximumallowablehubtem-

7.

prat .

thetemperatureoftheshaftandthehubwiththesameinstrument.Anaccuratemeodmust

Measure

beprovidedformeasuringhubandshafttemperaturesquicklybeoremontingthehub.Thiscanbestbe

8.

done

ahandpyrometer.Inusingthepyrometer,placepointInformationthegaugeinsidethebreofthehubto

Insurewithatthehubboreandtheshaft

arecleanpriortoassmblingtheheatedhub

therotorshaft.

obtainthefittemperature.

ggemewiththetaprfit(notinactualcntac),snapitorcibly

aswhencold.Whenthehubisnearlyin

Then,using

handprotction,quickly

theh

thehothubon

shaftinthesameangularp

placewithadequatequickpush.Itisimporta

hubbeinstantlysnappedintoposito

beforesitionhas

9.

intocoled;otherwise,itwillfreezetotheshafndcataperthatmountotbeadjust

further.

alongthe

Check

hotorshrunk−on

ofthehub

the

.Theadvancefromcoldtohot

locatedinthesamrelativepositionasusedConfidentialtomesureshafthecoldpositioninStep3(asshownpositionFigure14).

axisoftheshaft

ustbe

ldwhithelimitsindicted.

cktheactualadvancewithanindcatorgauge,

10.

Proprietary

Iftheadvanceisnotwithinspecifiedlimits,removethehubandrepeattheassemblyprocedure.

43