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4.9.3.2 IGV Assembly Removal

Figure 4-54 Set Screw Removal

1. RemovetheIGVHousingAssembly.

2. Removethefour(4)M5x16fastenersandseparatethefour-pinFeedthroughfromtheIGVHousing.

RefertoFigure4-55IGVFeedthroughRemoval.

Figure 4-55 IGV Feedthrough Removal

3. Disconnectthefour(4)wiresfromthefour-pinFeedthrough.Noteandrecordpositionofwirecolorsto

theircorrespondingpins.Expected:1=Red,2=Gray,3=Yellow,and4=Black.RefertoTable4-15IGV

FeedthroughWiringOrderonpage92.

NOTE

Thecolorsassociatedwitheachpincouldvary,sobesuretoidentifythoseontherespectivecompressor.



4. RemovetheIGVMotorassemblybypullingawayfromwormshaft.RefertoFigure4-56IGVMotor

AssemblyRemovalonpage88.SupportthebottomoftheIGVMotortopreventdamagetothemotor

shaft.Alighttaponthemotorlocatingscrewwithatoolmayhelpreleasethemotorshaftfromthe

wormgear.

5. Ifnecessary,usingaStepperMotorDriver,turnthewormgearandVaneDriveassemblytopositionthe

motorshaftsothatlockingsetscrewisalignedwiththeholeshowninFigure4-54SetScrewRemoval.

Useneedle-nosepliersorsimilartooltoturnthewormgearifaStepperMotorDriverisnotavailable.

6. Removethesetscrewcompletelyusinga2.5mmhexbittoreleasethemotorfromthewormgear.

M-SV-001-EN Rev. H-1/23/2023 Page 87 of 294

Danfoss TTS350 User Manual

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