Ricoh D197 Service Manual page 195

Punch Unit PU3050
11. Insert the hopper guide plate [A] from the front.
12. Secure the hopper guide plate [A] ( x4, x1).
13. Insert the punch unit stay [A] from the front.

Set the shaft [B] of the punch unit stay in the U-shaped gutter [A].
SM 2-125 D197/D198/D199/D200/D201/D202