Reassembly
1. Replace IGBT brake module in accordance with instructions included with replacement module.
2. Reassemble in reverse order of this procedure.
NB!
The special torque requirements on the instructions included with the replacement module.
8.2.10 IGBT Module
1. Remove both upper and lower capacitor bank assemblies in accordance with instructions.
2. Remove high frequency board in accordance with instructions.
3. Remove three current sensors in accordance with instructions.
4. If optional brake IGBT is present, remove bus bar attached to left side of panel and to left most brake IGBT by removing two nuts at each end of bus bar.
(See Brake IGBT Module.) Otherwise go to step 6.
5. If optional brake IGBT is present, remove the two screws (T30) connecting the IGBT-Ind bus bar assembly to each brake IGBT module.
6. Remove nine snubber capacitors by removing two screws (T30) for from each capacitor.
7. Remove the three IGBT capacitor bus bars freed by removing screws in step 6.
8. Remove four retaining nuts (13mm) connecting IGBT-Ind bus bar assembly to two DC bus bars from inductor.
9. Remove IGBT-Ind bus bar assembly.
10. Remove IGBT module by removing 8 retaining screws (T25) mounting IGBTmodule to back panel.
Reassembly
1. Replace IGBT brake module in accordance with instructions included with replacement module.
2. Reassemble in reverse order of this procedure.
3. NOTE: Connect temperature sensor cable from gate drive card MK100 to center IGBT module connector MK103.
NB!
The special torque requirements on the instructions included with the replacement module.
High Power Service Manual for Unit Sizes 6x
118
8
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