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--- 5_25_floppy_drives:nec_fd1157c [2021/06/11 08:46] – js
+++ 5_25_floppy_drives:nec_fd1157c [2021/06/11 11:32] (current) – js
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 ++++
+==== Head cover coming loose ====
+Over time the foam the adheres the head cover to the head assembly degrades and the head cover will fall off.
+While not being critical it is recommended to fix this issue.
+{{:5_25_floppy_drives:nec_fd1157c:fix_headcover_1.jpg?200|}}
+{{:5_25_floppy_drives:nec_fd1157c:fix_headcover_2.jpg?200|}}
+{{:5_25_floppy_drives:nec_fd1157c:fix_headcover_3.jpg?200|}}
+{{:5_25_floppy_drives:nec_fd1157c:fix_headcover_4.jpg?200|}}
+{{:5_25_floppy_drives:nec_fd1157c:fix_headcover_5.jpg?200|}}
+The Head cover repair can be performed by following these steps:
+  - Clean the head cover and the head assembly of any remaining glue and foam as best as possible.
+  - Cut out a small rectangle of neoprene sealing tape.
+  - Glue the rectangle to the head cover with the adhesive side facing up.
+  - Let the glue dry completely.
+  - Attach the head cover to the head assembly using the adhesive side.
+===== Modifications =====
+==== 84 track seeking ====
+Not all drives will be able to seek 84 tracks without some moderate modification.
+{{:5_25_floppy_drives:nec_fd1157c:mod_84tracks_1.jpg?200|}}
+The modification can be performed by following these steps:
+  - Unscrew the end stop screw on the stepper motor until it no longer protrudes out the other side.
+  - Re-align the tracks with a front bias, make sure that track 83 can be reached.