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– Make sure not to scratch the surface.
6. Use the centering ball on the lower heat sink (see Fig. 10–24) to position the diode.
The diode snaps in place when it has been centered correctly.
IMPORTANT! Failure to center the diode correctly can damage the diode and cause
stack misalignment.
2
Figure 10–24 Centering freewheeling and neutral point diodes
1) Heat sink
7. Remove the spreading tool.
8. Remove the stabilizer plate.
9. Check the stack alignment according to section 10.6.6, Checking stacks alignment,
page 159.
10. Tighten the stacks according to section 10.6.7, Tightening the stacks, page 166.
11. Re-check the diodes according to section 9.9.4, Checking neutral point (NP) diodes,
page 131.
12. Restart the PCS6000 according to section 5.4, Start-up after maintenance or
troubleshooting, page 70.
PRODUCT
PCS6000
DOCUMENT KIND
Service manual
REPLACING POWER AND COOLING COMPONENTS
1
1
2) Centering ball
DOCUMENT ID.
3BHS600000 E80
REV.
LANG.
PAGE
F
en
158/272
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Table of Contents
Troubleshooting
