Ricoh D146 Service Manual page 191

Punch Unit PU3050
20. Clamp the harnesses.
21. Attach the finisher rear cover.
22. Attach the finisher inner cover and three knobs.
23. Close the front cover.
24. Close the top cover.
25. Attach the finisher to the machine, and connect the interface cable.
26. Turn the power switch on.
27. Check that the punch can be selected at the operation panel, and check the operation.
D146/D147/D148/D149/D150 2-120 SM