Repair
Replace Replace
Replace
RTD RTD
RTD
1.PerformShutdown,page50.
2.Waitforheatertocool.
3.Removeheatercovers.
4.Cutcabletiesaroundthewovenwrapwith
theRTDcable(512).
5.DisconnectRTDcable(512)fromTCM(453).
6.Loosenferrulenut(N).RemoveRTD(512)
fromheaterhousing(501),thenremove
RTDhousing(H).Donotremovetheadapter
(206)unlessnecessary.Ifadaptermustbe
removed,ensurethatmixer(510)isoutof
thewaywhenreplacingtheadapter.
7.RemoveRTDcable(512)fromwovenwrap.
8.ReplaceRTDcable(512).
a.ApplyPTFEtapeandthreadsealant
tomalepipethreadsandtightenRTD
housing(H)intoadapter(506).
b.PushinRTD(512)sotipcontactsheater
element(508).
c.HoldingRTD(512)againstheater
element,tightenferrulenut(N)3/4turn
pastnger-tight.
9.Routewires(S)asbeforethroughwoven
wrapandreconnectRTDcable(512)tothe
TCM.
10.Replaceheatercovers.
11.Followstartupinstructionsintheoperation
manual.TurnonAandBheatsimultaneously
totest.Temperaturesshouldriseatsame
rate.Ifoneislow,loosenferrulenut(N)
andtightenRTDhousing(H)toensureRTD
tipcontactstheheaterelement(212)when
ferrulenut(N)isretightened.
Figure7
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334946J