Editing IBM 5110 Maintenance Guide (section)

== 5114 Diskette Drive Maintenance ==

* '''Drive belt''' on 8-inch floppy — replace if perished. Modern replacements available from the 8-inch floppy restoration community.
* '''Head load solenoid''' — exercise it; replace if fatigued.
* '''Spindle motor''' — brush wear is the main failure mode; brushes can be re-sourced from industrial motor suppliers.
* '''Read / write head''' — clean with IPA on foam swab. Never use cotton — fibres in the head gap cause errors.
* '''Head alignment''' — verify against a known-good diskette using the procedure in the 5114 MIM.
* '''Oxide shedding''' from old diskettes — period IBM Diskette 2D media may have lost binder integrity. Inspect every diskette before reading; if oxide is shedding, do not load it (will contaminate the head).