In 2003 Chris Lawson published detailed instructions on cleaning a floppy drive.
I saved the directions knowing I or someone else would need this information.

Cleaning Floppy Drives

Originally published 14 March 2000 as a Mac Daniel column for Low End Mac.
Revised slightly 22 June 2003.

Q: How do I clean/lubricate/repair the floppy drive in my Mac?

A: Once you open the Mac and remove the floppy drive and bracket assembly, 
remove the drive from the bracket by unscrewing the four (or fewer, depending 
on how responsible the last person to work on the floppy drive was) screws.

To clean the drive, use a can of dry compressed air. You can find this in 
various sizes at your local office supply store, probably in the electronics 
section. Just ask for canned air. Point the air stream out of the drive, and 
clean from back to front, so that you don't pack dirt around the heads and 
sliders.

Once you have the major chunks of dust and dirt out, you'll probably need to 
lubricate the drive. Lubrication points are the two gold-toned discs in the 
slides on the top of the drive mechanism, on the left as you face the front of 
the drive. They're partially covering slots in the slider mechanism. A very 
light lube should also be applied to the four guide posts on the sides of the 
drive which guide the floppy-holding mechanism down to contact the spindle 
motor and heads. They're barrel-shaped metal pieces, about 3/16" long and 1/8" 
diameter. Lube the bottom side and the metal they rub against.

The four sliders in the bottom of the disk insertion area should also be 
lubricated. These are hard to get to, but you can probably reach them with a 
Q-Tip soaked in lubricant or with the tip of a small straw. (Never transfer 
toxic lubricants such as WD-40 or Liquid Wrench by mouth.) I prefer using 
Liquid Wrench or WD-40 at first, because it loosens up the hardened and 
thickened grease that is already on the drive. Allow the penetrating oil to 
soak in for a few minutes and cycle the drive (as explained below) while it's 
soaking in. Once the old grease is thoroughly loosened and dissolved, and any 
excess wiped off, a thin coat of lithium grease or machine oil can be applied. 
A brief note of caution: do NOT use bio-based lubricants like corn oil or 
butter. I tried this in a pinch once, and not only did the corn oil go rancid, 
but it turned to glue after about two weeks.

Cycle the drive several times by pushing an old disk into it and then manually 
ejecting the disk (push the metal tab on the right side of the drive at the 
front). Once it snaps down with a good solid motion, you've got it lubed 
enough. The drives can also be cycled without using a disk (800K and 400K 
drives are easier than 1.44 MB drives, due to an interlock on the 1.44 MB 
drives), but I'll leave working out this method as an exercise for the reader.

copyright 2000-2004 by Chris Lawson 


> On May 7, 2019, at 12:55 PM, Jeff Walther <t...@prismnet.com> wrote:
> 
> 
> 
> On Tuesday, May 7, 2019 at 8:58:22 AM UTC-5, Philip wrote:
> Picked up a Macinotsh SE from a Craigslist seller. He said it was totally 
> dead, but sure enough, I got it home and it powered right on. Hard drive 
> still works and everything.
> 
> I am really looking for a keyboard, mouse, and a working floppy drive, but if 
> you have anything else that's interesting, I am open to possibilities.
> 
> Depending on what's wrong the floppy drive may be fixable.   With age, the 
> lubricant  turns to glue.   If you remove the floppy drive and carefully 
> clean the mechanical parts that are meant to slide along each other (mainly 
> on the two narrow sides of the mechanism) with alcohol, and then relube with 
> something like a light lithium grease, it may start working again.  There is 
> also a gear assembly that may need cleaning.  Don't force the mechanism into 
> motion as the teeth often break off of those gears wtih age.  There are 3-D 
> printed replacements available out there somewhere.
> 
> Keyboard and mouse must have an ADB (Apple Desktop Bus) interface.  The 
> connector looks a lot like an S-video connector.  Unfortunately, this is also 
> quite similar looking to PS2 connectors and Microsoft Bus Mouse connectors.
> 
> Jeff Walther
> 
> 
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with any required registration number, password, etc.
Shipments valued at US$100 or more should be insured, and shipments valued at 
US$25 or more should be shipped so they can be tracked.
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