|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
1.4.5. |
|
|
| Procedures |
|
|
|
|
|
|
|
|
| |||||
TGroundingattach |
|
|
|
|
|
| 1150HPACDrillingMotor,Model5GEB22 | |||||||||||
|
|
| cabletothegroundblock: |
|
|
|
| |||||||||||
|
| he5GEB22hasagroundblockattachedtotheframeasshowninFigure2.T | ||||||||||||||||
|
| 2. |
|
| groundfthe0.375diameterstud. |
|
|
| ElctricalCode)longenoughtorun | |||||||||
|
| clearancePreparegroundc |
| (u |
| apppiatesizecableperNat | ||||||||||||
|
| 1Obtain |
| lockwaher.Alsorequiredis | cablelugtofitthegroundcableandterminalhole | |||||||||||||
|
|
| fromthemotorframeductoranexis |
| ground |
| system |
| onaltosuitableequipmentgroundpoint | |||||||||
|
|
| definedbytheNationalElectrical | CdeArticleconductor250 otherapplicablereulation.Checkthatthesystm | ||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
| Information |
|
|
| ||
|
|
| grounddetectorisalsoconnectedtingotheCommongroundpoint | therigandmakeconnectionifneceas- | ||||||||||||||
|
|
|
|
|
| |||||||||||||
|
| 3 | sary. | terminallugson |
| .Rmovepaint,rustand | ilfromallsurfacestowhichthecablesaretobe | |||||||||||
|
|
|
|
|
| |||||||||||||
|
| 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. | 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 | |||||||||||||||