IBM 4685-K03 - Manual (Page 34)

Attaching
1. Insert the key guide into the hole that will
not use a scan code.
2. Insert the brown rubber ring around the
hole where the key guide was inserted.
Insert the black rubber ring at the location
without the key guide.
3. Insert the key. Be careful not to bend the
springs attached to the key.
4. Attach the key.
Key guide
(Brown)
(Black)
Key
Spring
18 IBM 4685-K03 Installation, Operation and Maintenance Guide