Danfoss Turbocor TT Series, Service Manual

Page: 127 / 294

Figure 4-117 SCR DC Bus Bar to SCR Alignment
2. Install the positive bus bar beside the negative bus bar (aligned with holes identified as #2 on the
diodes).
3. The curved section of the bus bar should be installed upwards.
4. Insert and finger-tighten the six (6) M6x16 SCR DC Bus Bar fasteners.
5. Insert and finger-tighten the two (2) M6x20 Bus Bar bolts and M6 nuts to secure the SCR DC Bus Bars to
the Capacitor DC Bus Bar.
6. Torque the six (6) M6x16 SCR DC Bus Bar fasteners to 5 Nm (44 in.lb.).
7. Hold the two (2) M6x20 Bus Bar bolts with a wrench and torque the M6 nuts to 10 Nm (7 ft.lb.).
8. Install the top covers. Refer to Section 4.1 Compressor Covers on page 52.
9. Return the compressor to normal operation.
4.15.1.3 SCR DC Bus Bar Torque Specifications
Table 4-26 SCR DC Bus Bar Torque Specifications
Description Nm Ft.Lb. In.Lb.
SCR DC Bus Bar fastener, M6x16 5 - 44
DC Capacitor Bus Bar to SCR Bus Bar Nut, M6 10 7 89
Cover Fastener, M5x15 1.5 - 13
M-SV-001-EN Rev. H-1/23/2023 Page 127 of 294