Don't disassemble the coupling assembly more than bleow procedure because its performance may get bad influence after disassembling.
Remove the coupling(A) flange(B) mounting nut(C).
Remove the flange spacer(A).
Remove the coupling flange oil seal(A).
Using a general tool, 3-way puller(A), remove the flange assembly(B) from the coupling(C).
Remove the flange oil seal(A) using special tool (09432-33200).
Remove the coupling case assembly(A).