- Pull out the extender of the finisher's shift tray.
 - Insert the relay tray [A] provided with this option.
 - Fasten the relay tray together from the bottom with the screws provided with this option, so that it does not come apart (
x2: M3x10).
 - Insert the extension tray [A] provided with this option.
 Use the shift tray emergency stop switch of the finisher to lower the shift tray and then attach the support plate [A] provided with this option.
Raise the shift tray by using the shift tray emergency stop switch after attaching the support plate.- Insert the pins [A] of the support plate into the holes [B] in the shift tray.
 
- Insert the pins [A] of the support plate into the holes [B] in the shift tray.