Figure 4-161 SCR Removal - TTS/TGS/TTH/TGH Rev. H (Except TTS300/TGS230)
๎8.๎ Clean๎the๎heat๎sink๎paste๎from๎the๎SCR๎and๎Manifold๎using๎a๎cloth๎and๎isopropyl๎Alcohol.
๎9.๎ Continue๎to๎Section๎4.18.3.5๎๎SCR๎Installation๎-๎TTS/TGS/TTH/TGH๎(Except๎TTS300/TGS230)๎on๎page๎155.
4.18.3.4 SCR Installation - TTS300/TGS230
๎1.๎ Clean๎the๎contact๎surfaces๎of๎SCR๎Cooling๎Manifold.
๎2.๎ If๎the๎SCRs๎are๎to๎be๎reused,๎clean๎their๎mounting๎surface๎(backside)๎to๎ensure๎the๎surface๎is๎free๎of๎any๎
contaminants.
๎3.๎ Spread๎a๎thin๎and๎uniform๎coat๎of๎Dow๎Corning๎Silicone๎Heat๎Sink๎paste๎(or๎equivalent)๎entirely๎over๎
the๎bottom๎of๎each๎SCR๎surface.๎Refer๎to๎Figure๎4-162๎๎SCR๎Heat๎Sink๎Paste๎Application๎-๎
TTS300/TGS230.
Figure 4-162 SCR Heat Sink Paste Application - TTS300/TGS230
๎4.๎ Install๎the๎SCRs๎on๎the๎SCR๎Cooling๎Manifold.๎The๎SCR๎Gate๎Connectors๎should๎be๎on๎the๎same๎side๎as๎
the๎Discharge๎P/T๎Sensor.๎Refer๎to๎Figure๎4-163๎๎SCR๎Orientation๎-๎TTS300/TGS230๎on๎page๎154๎for๎this๎
and๎the๎following๎step.
๎5.๎ Insert๎and๎finger-tighten๎the๎six๎(6)๎M6x16๎SCR๎to๎SCR๎Cooling๎Manifold๎fasteners.
๎
M-SV-001-EN Rev. H-1/23/2023 Page 153 of 294