189 of 282
M-SV-001-EN Rev. G
Table 4-36 Spring Identification Table
Figure 4-241 Spring Pin Identification
3. Replace any defective spring pins (bent pin head or inconsistent height on top with others)
with new ones. Only do this when absolutely necessary. When removing the spring pins, use
small needle-nose pliers and gently pull straight up with no lateral movement.
NOTE
Do not attempt to straighten or repair any damaged spring pins. The defective pins must be replaced.
4. Discard the defective spring pins and inspect the Inverter for any foreign objects.
5. Insert the new spring pins carefully and verify they line up in the notches. Refer to "Figure
4-239 Seated Spring Pins" on page 188.
6. Retrieve the new Driver Board from the packaging.
NOTE
Use extreme care when removing the new driver board and cover from the packaging. The cover snaps into place over the driver
board but could separate. Be sure to hold both to avoid dropping the driver board if separation occurs. If they do become separat-
ed, carefully snap the cover back into place prior to assembly.
7. For proper alignment, insert two (2) of the fasteners in opposite corners of the Driver Board.
8. Align the new Driver Board over the Inverter module with the connector towards the motor
stator output bus bar (the shape of Driver Board must be aligned with Inverter Press Plate
shape). Refer to "Figure 4-242 Driver Board Placement" for the next two (2) steps.
9. Lower the Driver Board down on the Inverter module, do not allow for any lateral movement.
Be sure the bottom of the Driver Board is parallel with the Press Plate.
Figure 4-242 Driver Board Placement
10. Insert the remaining fasteners and tighten from center outward according to "Figure 4-243
Initial Tightening Pass Sequence" on page 190. This will be the first pass and the fasteners
should only be snug and not torqued at this step.
Spring Numbers
Length
Springs 1-6
Short
Springs 7-13
Long
Press Plate
• • • CAUTION • • •
Any lateral movement may damage the spring pins.
Summary of Contents for Turbocor TTS Series
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