IBM RT User's Setup Manual page 233

all
W arning: F o llo w i n s t r u c t i o n s u n d e r " R em o v in g th e
C o v ers F ro m th e S y ste m U n i t s " on p a g e 1-4 b efo re you beg in
th is ta s k .
Use the following steps to install the second diskette drive:
1. On the system unit, locate the faceplate covering the second
diskette position.
System Unit Cover
(Inside View)
A.TZIF094
2-58 Options Installation