1.4.5.

 

 

 

Procedures

 

 

 

 

 

 

 

 

 

GEK-91696D

TGroundingattach

 

 

 

 

 

 

1150HPACDrillingMotor,Model5GEB22

 

 

 

cabletothegroundblock:

 

 

 

 

mountingstudis3/8–16thread.

 

 

he5GEB22hasagroundblockattachedtotheframeasshowninFigure2.T

 

 

2.

 

 

groundfthe0.375diameterstud.

 

 

 

ElctricalCode)longenoughtorun

 

 

clearancePreparegroundc

 

(u

 

apppiatesizecableperNat

 

 

1Obtain

 

3/8–16nutand

lockwaher.Alsorequiredis

cablelugtofitthegroundcableandterminalhole

 

 

 

fromthemotorframeductoranexis

 

ground

 

system

 

onaltosuitableequipmentgroundpoint

 

 

 

definedbytheNationalElectrical

CdeArticleconductor250 otherapplicablereulation.Checkthatthesystm

 

 

 

 

 

 

 

 

 

 

 

 

 

Information

 

 

 

 

 

 

grounddetectorisalsoconnectedtingotheCommongroundpoint

therigandmakeconnectionifneceas-

 

 

 

 

 

 

 

 

3

sary.

terminallugson

 

.Rmovepaint,rustand

ilfromallsurfacestowhichthecablesaretobe

 

 

 

atachedandboltthelugscablecurlytothesesurfaces.Torquethenutto25lb-ft(34Nm).

 

 

 

 

 

4.

InstallAfer

 

 

prtectthegroundstud,nut,andcablelugconnectionfromcorrosion

byapplyingarust

 

 

 

inhibitorinstallation,theexposedcomponents.

 

 

 

 

 

 

 

 

1.4.6.

 

 

 

 

 

 

 

 

 

MotorCouplingandAlignment

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION:Besuretoalign,orcheckalignmentcarefullyoneithermotorsorMGsets.Misalignmentcancause

 

 

excessivevibrationanddamagingforcesonshaftand

 

.

 

 

 

 

 

 

1.4.6.1.

TiCmetakenDto

goodalignmentwillbereturnedbearingsreduceddowntime.

 

 

 

 

 

CAUTION:ntpreveOnbeCouplingsusedexcessivecoupledusedCarefulbetweentomustfacilitadrives,vibration,alignmentassuremotoshaftbewhenpoperlyalignmenthotofmachines,motorbearings,andsized.couplingThreeandtobeaor−whencapabledrivenbearingshft. usingunitfailuresconstructionoftogetherdrivingeither.maximumsolidhaverequres(rigid)fourmachineoraorrigidmoreflexiblecouplbeartorquecouplings,..Interferenceflexibleiscouplingsessentialfitsshouldshouldtobe

1.4.6.2.

OnV-VB−beltDdrives,v

thedriving

nddriven

fts

locatedsothatthyareparallelandthesheavesaligned.

 

 

Ifprperlyaligned,thereis

 

 

wearonthebeltsandnoexcessivthrustonthemachinebearings.

The

 

 

 

followed

oncerningtheminimumsheavepitchdiaeterwhichcanbeusedfortheparticularmoor.

 

 

sheaveshouldbemountedascloseaspossibleshouldthemotorbearings.Thefollowingrecommendationsshould

 

 

beltmanufcturershouldbe

 

 

 

forthemaximumspeedratioandbeltfortheparticularapplicaion.

 

 

 

 

Dthisload=HP/RPMfollowingtorqueused.theX189000/Wsheavediamconsultedtercalculation.Belselectshouldneverbetightenedmorethannecessarytransmistostandmit11

 

 

pointofbearingformulaandlife shafstess.Alarger

willfurtherreducetheshaftstressandbearingloading.

 

 

 

e

 

 

daacan

 

usedto

theMINIMUMallowable

eavediameterfromthe

-

 

 

Thisdataisbaseduponthebltsbeingtightenedsheaveomaximumtotalpullof1.5timestherequired

ion

Page 11
Image 11
GE 5GEB22 manual MotorCouplingandAlignment, Prtectthegroundstud,nut,andcablelugconnectionfromcorrosion