Brookfield DV3T - Page 122

Brookeld Engineering Labs., Inc. Page 122 Manual No. M13-167-A0415
✓ Pivotpointorjewelbearingfaulty
  • PerformanOscillationCheck*
✓ RemovethespindleandturnthemotorOFF;selectdisplayto%torquemode.
✓ Gentlypushupontherheometercoupling.
✓ Turnthecouplinguntilthedigitaldisplayreads10-15onthe%display.
✓ Gentlyletgoofthecoupling.
✓ Watchthedigitaldisplay;youshouldseea“run”ofnumbersnexttothe%;the“run”of
numbersshouldultimatelystopat0.0(+/-0.1).
IfthedigitaldisplaydoesnotreturntoZERO,theunitmostlikelyisinneedofservice.
  • Performcalibrationcheck(seeAppendixF).
 • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair(see
AppendixO).
*Thisproceduredoesnotapplytoinstrumentswithballbearingsuspension(seeSectionI.3).
❏ Display Reading Will Not Stabilize
✓ Specialcharacteristicofsampleuid.Thereisnoproblemwiththerheometer.
  • RefertoAppendixC.
✓ Checkforerraticspindlerotation.
  • Verifypowersupply
  • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair.
✓ Bentspindleorspindlecoupling.
  • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair.
✓ Temperatureuctuationinsampleuid.
  • Usetemperaturebathforcontrol.