2 Remove the punch drive board cover by removing one screw. Punch unit cover Punch drive board cover Screw 5 Disconnect two connectors (CN158, 505). 6 Remove the punch unit from finisher by removing four screws. Screw 3 Disconnect two connectors (CN65, 68) and one inline connector (CN531) from the punch drive board (PKDB). Punch unit Screw Screw Connector (CN505) Punch kit disassembly/assembly Connector (CN65) Relay connector (CN531) Punch shift HP PS (PS803) Screw Punch shift motor (M802) Connector (CN158) 7 Reinstall the above parts following the removal steps in reverse. Punch drive board (PKDB) Connector (CN68) 4 Remove three screws to remove the punch unit cover. ENWW Punch section 21