ABB MBT Series - Commissioning and Starting Procedures; Initial Inspection and Preparation; Insulation, Starting Methods, and Wiring

Fläkt Woods 8265 GB 2011.10 4 Specifications are subject to alteration without notice
Installation and maintenance instruction
Fläkt Woods three phase asyncronous motor
Manufacturer: ABB
Fitting coupling halves and pulleys
Couplinghalvesandpulleysmustbefittedusingsuitable
equipmentandtoolsthatdonotdamagethebearings.
Neverfitacouplinghalforpulleybyhammeringinto
placeorremoveitusingaleverpressedagainstthebody
ofthemachine.
Mounting accuracy of coupling half :
checkthattheclearancebislessthan0,05mmandthatthe
differencea1toa2isalsolessthan0,05mm.Seefigure3.
Balancing
Therotorofthemachineisdynamicallybalanced.
Asstandard,balancinghasbeencarriedoutusinghalf
key,andtheshaftismarkedwith a RED tape,withthe
text“Balancedwithhalfkey”.
Toavoidvibrationthecoupling-halforpulleymustbe
balancedwithhalfkeyafterthekeywayhasbeen
machined.
Intheeventofbalancingwithfullkeytheshaftis
markedwith a YELLOW tape,withthetext“Balanced
withfullkey”.
Toavoidvibrationthecoupling-halforpulleymustbe
balancedwithoutakeyafterthekeywayhasbeen
machined.
Incasebalancingwithout key,theshaftismarkedwith
a BLUE tape,withthetext“Balancedwithoutkey”.
Maintenance and lubrication
General inspection
- Inspectthemachineatregularintervals.
- Keepthemachinecleanandensurefreeventilation
 airflow.
- Checktheconditionofshaftseals(egV-ring)and
 replaceifnecessary.
- Checktheconditionofconnectionsandmountingand
 assemblybolts.
- Checkthebearingconditionbylisteningforunusual
 noise,vibrationmeasurement,bearingtemperature,
 inspectionofspentgreaseorSPMbearingmonitoring.
*Whenchangesofconditionoccur,dismantlethemachine,
checkthepartsandreplaceifnecessary.
Lubrication
Machines with permanently greased bearings
Machinesuptoframesize180arenormallyfittedwith
permanentlygreasedbearingsofeitherZor2Ztypes.
Bearingtypesarespecifiedintherespectiveproductcata-
loguesandontheratingplateofeachmotorfromsize112
andlarger.
WARNING!
 Bewareofallrotatingparts!
Asaquide,adequatelubricationcanbeachievedforthe
followingduration,accordingtoL1atambienttempera-
tureof25°C.
32000-45000dutyhoursfor4polemachines.1)
16000-26000dutyhoursfor2and2/4pole
machines.
1)
Theshortertimesapplytolargerframesizes.
1)
 Dependingonapplicationandloadconditions,see
 applicableproductcatalogue.
 Hoursofoperationforverticalmotorsarehalfofthe
 abovevalues.
Machines with relubrication system
Relubricationprocedure:
- Removegreaseoutletplugiffitted.
- Pressfreshgreaseintothebearinguntilalloldgrease
 hasbeenforcedout
- Letthemotorrun1-2hourstoensurethatallexcess
 greaseisforcedoutofthebearing.Closethegrease
 outletplugiffitted.
Regreasemotorswhilerunning.Ifthisisnotpossible,
lubricationcanbecarriedoutwhilethemachineisata
standstill.Inthiscase,useonlyhalfthequantityofgrease,
thenrunthemotorforafewminutesatfullspeed.When
themotorhasstopped,theremainingquantityofgrease
canbeforcedinuntiltheoldgreasehasbeenreplaced.
After1-2runninghoursclosethegreaseoutletplug(if
fitted).
Thegreaseoutletplugmustberemovedpermanently
withautomaticlubrication.
Ifthemachineisfittedwithalubricationinformation
plate,followthevaluesgiven,otherwiseusethevalues
intable,page5.
ABBMotorspolicyistohavereliabilityasavitalissuein
bearinglubricationintervals.Thatiswhywefollowthe
L1-principle(meaningthat99%ofthemotorsaresure
tomaketheintervaltime).AccordingtoL1policythe
lubricationintervalsareasfollows: