Selco GENESIS 145, Руководство по ремонту

Страница: 28 / 45

7
POWER BOARD 15.14.244 REPLACEMENT PROCEDURE
1) Remove board 15.14.43
2) Remove screws S1, S, S3, S4, S5, S6, S7, S8, S9 and S10 which fix the power components and the rectifier bridge to the heat sink
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10
3) Disconnect all the connected cables, paying special attention to remembering how they are connected.
4) Remove the board from the plastic support.
5) Remove the sheet of SILPAD insulation which insulates the MOSFET MF5. (WARNING: The sheet of SILPAD insulation can NOT be
re-used).
6) Clean any high-temperature grease off the heat sink.
7) Smear high-temperature grease on the power devices MF1-MF-MF3-MF4-MF6-MF7-MF8-MF9 and on the rectifier bridge.
8) Position of the new sheet of SILPAD insulation underneath the MOSFET MF5.
9) Fix the power devices and the rectifier bridge with the appropriate screws with torque of .Nxm.
10) Reconnect all the various wires.
11) Refit board 15.14.43.