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Figure 4-231 DC-DC Converter Removal
Installation
1. Clean the Inverter Heat Sink Plate where the DC-DC was mounted, and clean the mating surface of the
DC-DC if it is to be reused. Isopropyl alcohol is recommended to best remove the heatsink paste.
2. Spread a thin and uniform coat of Dow Corning Silicone Heat Sink paste (or equivalent) entirely over
the bottom of the Potted DC-DC.
NOTE
Open Frame DC-DC Converters do not require heat sink paste.
3. Install the rear M3x10 fasteners that secure the DC-DC Converter to the Inverter Heat Sink Plate. Do not
tighten at this time; leave enough space under the fasteners to allow the DC-DC Converter to slide
under. Refer to Figure 4-232 DC-DC Rear Fastener Install.
Figure 4-232 DC-DC Rear Fastener Install
4. Align the DC-DC Converter with the mounting holes on the Inverter Heat Sink Plate by sliding the DC-
DC Converter under the partially-installed rear fasteners.
5. Install the new front M3x10 fasteners that secure the DC-DC Converter to the Inverter Heat Sink Plate.
Torque all fasteners to 0.5 Nm (4 in.lb.). Refer to Figure 4-233 Potted DC-DC - Top View on page 208
and Figure 4-234 Open Frame DC-DC - Top View on page 208 for the fastener locations.
M-SV-001-EN Rev. H-1/23/2023 Page 207 of 294
Summary of Contents for Turbocor TT Series
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