GE 5GEB22 manual Berialeliminatestheneedforflux, Whichmust flatalongtheentirelenghofthejoint

GEK-91696D

NOTE:Thebrazing

diancanbeused

1150HPACDrillingMotor,Model5GEB22

stripform(GEPart41A231281P46)orrodform(GEPart

41A330300P2).Itisrecommendedthatstrips0.010 (0.25mm)thickcutinosquresorrectangles0.06in.

theinitialconnection.Useofthis

berialeliminatestheneedforflux.

.6mm)largerthantheconductors,

usedfortheinitialconnection.Usethebrazingrodtofillvoidsafter

(1

Theconnectionareaofthematerialtobebrazedmustbecleanandfreeofdirt,oil,andinsulatingmaterials.

2.

Ifnecessary,bendthesoftcopperconnectingstrapsoaligntheconnection.

NOTE:Whenusingbrazingmaterialinstripform,thestripshouldbesandwichedbetweenthetwopieces

being

whichmust flatalongtheentirelenghofthejoint.

3

Insertbrazed,brazingstripbetweenthetwoconnectingstrapsbeingbrazed.

4.

Postionthebrazingtongsontheareatobebrazed,andclamp place.

mayresultininjury.

WARNING:Observeallgovernmentandshopsafetyregulationswhenusingcompressedair.Failuretodoso

CAUTION:PoweristobeappliedinpulsesONLY.This

blesheheat

ospreadoutgradually,providingamore

evenheatingoftheconnectionarea,and

Confidentialanytensehotspotsthatmaydamagetheringorcoil

material5..

ApplypowertothebrazingtogseliminatingpulsesONLY,ndheatuntilthebrzingsoldrflowsfreely.Usinganair

NOTE:Whenbrazing,silversolderdingrodformwillberequired

fillareaswhrethestripmayhavedripped

nozzle,blowaironthesurroun

areawhileheatingtoissipatehetfromthareabeingbrazd.

outortofillvids.

67Insulate8.Removeholdnumber41A239176P15)Varnishthcapplicationthepweroconnectionfrmoverthe.Blowingtheareaortongs,othernewusingcompressedbutappropriateinsulationMicmatdoNOTairisrequired(partnumbeleaseinsulationthethebrazedeithermaterialtongs41A239176P215)areabyuntilP5Dspecificwillthe-EP25speedsilvertoVPIandthethesolderprocesshalfconnectioncoolinglaphasorinsulting.cooledhandreaapplication.enoughtape(partto.

5.3.3.

Stator

/

Reconditioning

Rotorandrotormstbereconditionedduringtheoverhaulproceduresbeforebeingreturnedtoservice.

Thesttor

ss

mblyshouldbetreatedbyVacuumPressureImpregnation(VPI)withanapprovedvarnish.VPI

seproce

helpens

relongoperatinglifeforthecomponents.

willselaandsecuret statorcoils.VPIonlyaftercleaning,inspectionandtestingofthestatorassembly.The

VPI

isGEProcessP5D–EP25.

Theprocessorassembly

betreatedbyapowdercoatingprocess.Powdercoattherotoraftercleaningand

pecting.Thepowder

attreatingisGEProcessP6C–EP45.

insDuetructiontochangingprocessestechnolshouldattimegy,ofcontactoverhaul.yourDrilllocalproductGErepresentativeServiceCenterorcontactDrillProductinformationServiceasCenterfollows:forcurrent27