Item 3121243 has must read information.
: 450A/AJ SERIES II GLOBAL ILLUSTRATED PARTS MANUAL P/N 3121243 REPLACES BOTH ANSI ILLUSTRATED PARTS MANUAL P/N 3121131 FOR USA BUILT MACHINES PRIOR TO S/N 0300124000 AND CE ILLUSTRATED PARTS MANUAL P/N 3121833 FOR BELGIUM BUILT MACHINES PRIOR TO S/N 1300006000. USE P/N 3121243 AS A REPLACEMENT AS IT INCLUDES ALL PAST HISTORY. FOR USA BUILT MACHINES S/N 0300124000 TO PRESENT AND BELGIUM BUILT MACHINES S/N 1300006000 TO PRESENT USE ILLUSTRATED PARTS MANUAL P/N 3121244. S/N INFORMATION ON FRONT COVER OF P/N 3121243 IS USA BUILT MACHINES S/N 0300065080 THROUGH 0300123999 AND BELGIUM BUILT MACHINES PRIOR TO S/N 1300006000.