IBM 9306 Hardware Maintenance Manual page 72

Front and rear doors – Models 42P, 42X, 4SA, 4SB
To remove a door:
1. Unlock the door and open it fully.
2. Grasp the door 1 firmly with both hands and lift it upwards until it is fully off of
Notes:
1. Reverse this procedure to reinstall front and rear doors.
2. The top hinge pin is longer than the bottom; engage it first when you reinstall
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Hardware Maintenance Manual: IBM PC Server/Enterprise Racks Types 9306, 9308
the hinges 2 .
doors.