OTHER REPLACEMENTS
B121 Series/B259 Series 3-48 SM
3.12.8 GEARBOX
Replacement Procedure
1. Inverter tray [A]
2. Two screws [B] from the middle rear
cover
NOTE: This step releases the topmost
part of the BICU bracket.
3. High-voltage power supply board (with
the bracket) ( 3.8.8)
4. BICU (with the bracket) [C] ( x 6)
NOTE: If you have difficulty removing
the bracket, remove the screw
at the middle of the crosspiece
(see step 6).
5. Main motor ( 3.12.4)
6. Crosspiece [D] ( x 3)
7. Registration clutch ( 3.8.8)
B121R936.WMF
B121R937.WMF
B121R938.WMF
[C]
[A]
[B]
[D]