1 - 257Chapter 3 Removal and Replacement Procedures (RRPs)RRP12.22 GEAR LEVER LOCK (PL12.3), LEVER BTM LOCK (PL12.3)Removal1) Remove the COVER CST (PL 12.3.1) from the 550 PAPER CASSETTE (PL 12.3.50).2) Release the lock of the LOCK EXTENSION, and draw out the cassette extension as far as itwill go.3) While pressing down the lock of the STOPPER GEAR (PL 12.3.29), release the lock of LEVERBTM LOCK (PL 12.3.27) to lift up the PLATE ASSY BTM (PL 12.3.10).4) Remove the screw (gold tapping, 8mm) securing the PLATE GEAR LOCK 550 (PL 12.3.19) atthe GEAR PB R (PL 12.3.20) side.5) Release the hook of the PLATE GEAR LOCK 550, and remove it from the HOUSING BASE550 (PL 12.3.44).6) Release the hook of the GEAR PB R, and remove the GEAR PB R from the SHAFT PB (PL12.3.9).7) Remove the 2 screws (gold tapping, 6mm) securing the COVER BTM UP 550 (PL 12.3.22),and remove it from the HOUSING BASE 550.8) Remove 2 GEAR LOCK PINIONs (PL 12.3.23) from the HOUSING BASE 550.9) Remove the RACK BTM LOCK 550 (PL 12.3.21) together with the SPRING BTM LOCK (PL12.3.24) from the HOUSING BASE 550.10) Remove the GEAR BTM LOCK (PL 20.3.25) from the HOUSING BASE 550.11) Remove the GEAR LEVER LOCK from the HOUSING BASE 550.12) Remove the 2 screws (gold tapping, 6mm) securing the STOPPER GEAR (PL 12.3.29), andremove the STOPPER GEAR and SPRING STOPPER GEAR (PL 12.3.28) from the HOUS-ING BASE 550.When removing the STOPPER GEAR, be careful not to lose the SPRING STOPPERGEAR.
