151 of 282
M-SV-001-EN Rev. G
NOTE
"Figure 4-172 Inverter Assembly Removal - TTS300/TGS230" shows the SCRs still mounted on the cooling plate. It is suggested
they are removed prior to the removal of the SCR Cooling Manifold.
6. Carefully peel back the foam to gain access to the two (2) M6x20 fasteners. Remove the two (2)
SCR Cooling Manifold fasteners and remove the assembly. Refer to "Figure 4-173 SCR Cooling
Manifold Removal - TTS300/TGS230" for this and the following step.
7. Remove and discard the two (2) O-rings.
Figure 4-173 SCR Cooling Manifold Removal - TTS300/TGS230
NOTE
Do not completely remove the foam insulation, only pull back what is needed to access the two (2) fasteners.
4.20.3 SCR Cooling Manifold Removal - TTS/TGS/TTH/TGH (Except TTS300/TGS230)
8. Remove the Terminal Block Assembly. Refer to "4.12.2 3-Phase Main Voltage Input Terminal
Block Removal and Installation" on page 98.
9. Remove the DC Bus Bars and Capacitor Assembly. Refer to "4.22.3 DC Capacitor Bus Bar
Assembly Removal and Installation" on page 158.
10. If the SCR Cooling Manifold is to be replaced, remove the SCRs. Refer to "4.19.3.3 SCR Removal
- TTS/TGS/TTH/TGH (Except TTS300/TGS230)" on page 143.
11. Remove the four (4) M6x35 SCR Cooling Manifold fasteners that secure the SCR Cooling
Manifold to the Inverter Heat Sink Plate. Refer to "Figure 4-174 SCR Cooling Manifold Removal"
on page 152 for this and the following step.
12. Remove the SCR Cooling Manifold.
NOTE
Removal of the SCR Cooling Manifold will require the manifold to rocked back and forth to disengage it from the SCR Manifold
Return Brass Fitting. If necessary, use a fl at-blade screwdriver to gently pry the manifold upward. Use extreme caution to not
damage any of the components.
Foam Insulation
SCR Cooling
Manifold
Fastener,
M6x20 (2 places)
Inverter Cooling Manifold to
SCR Cooling Manifold O-ring
(2 places)
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