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9. Removethethree(3)high-powerfeedthroughsusinga36mmwrench.

10. Removethethree(3)high-powerfeedthroughO-ringsfromtheMainhousingiftheydidnotcomeout

withtheoldfeedthroughs.

11. Inspectthesealingareaforanyresidueordebrisandcleanthethreadswithalint-freeclothifneeded.

4.23.5.8 High-Power Feedthrough Installation

1. Cleanthefeedthroughmatingsurfaceswithalint-freecloth.Inspectthesealingareaforanydamage.

2. Verifythattheoldhigh-powerfeedthroughO-ringshavebeenremoved.

3. LubricateandinstallnewO-ringsontotheHigh-PowerFeedthroughs.



• • • CAUTION • • •

BesuretofullyseattheO-ringintothegroveinthefeedthrough.FailuretodothiscanresultindamagetotheO-ringwhiletightening.

4. Finger-tightentheHigh-PowerFeedthroughsintotheMainhousingandthentorquetospecification.

ContinuetoStep5forthePPSHigh-PowerFeedthroughs.ContinuetoStep7fortheStainless-Steel

High-PowerFeedthroughs.

5. SecuretheringterminalstothePPSHigh-PowerFeedthroughsusingtheM10x16fastenersfromthe

inside.

6. OncetheM10x16fastenersarefingertight,torquethemto14Nm(10ft.lb).ContinuetoStep9.

• • • CAUTION • • •

Holdthehigh-powerfeedthroughusinga36mmwrenchwhileapplyingtorquetotheM10fastenerstopreventlooseningorover

torqueingthefeedthroughassembly.



7. SecuretheringterminalstotheStainless-SteelHigh-PowerFeedthroughsusingtheM10nutsand

washersfromtheinside.

8. Oncethenutsarefingertight,torquethemto15.5Nm(11.5ft.lb).ContinuetoStep9.



• • • CAUTION • • •

WhiletorqueingtheHigh-PowerFeedthroughNuts,itisimportanttoholdtheinnernutwithawrench.Failuretodosocouldplacean

excessiveloadonthefeedthroughcausinginternaldamage.Also,thefeedthroughitselfcouldmovewhichcouldallowittoloosenorbe

overtorqued.

9. InstallwiresontheinnerthermistorterminalsandtheninstalltheCoverPlate.Referto4.23.5.6Motor

CoverPlateInstallationonpage199.

10. Leaktestandevacuateinaccordancewithstandardindustrypractices.

11. Connectthetwo(2)connectorstothethermistorsensorfeedthrough.RefertoFigure4-227

ConnectiontoStatoronpage203.



Page 202 of 294 - M-SV-001-EN Rev. H 1/23/2023

Danfoss TTS400 User Manual

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