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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: LoadWB on October 23, 2010, 01:37:59 AM

Title: FZ-357A keeps greeting disks
Post by: LoadWB on October 23, 2010, 01:37:59 AM
The HD floppy in my A4000D has recently picked up the bad habit of sporadically "greeting" a disk, when no disk is present.  To mitigate, I can grab the sensor arm with needle-nose pliers and manipulate it a bit.  Then the drive behaves until the next disk is inserted and removed, then it starts again.

So it seems the lubricating the arm which extends out of the switch would fix the issue, but I am leery of using something like WD-40.  What would make a proper lube for this: mineral oil, WD-40, electric motor (or machine) oil, or what?
Title: Re: FZ-357A keeps greeting disks
Post by: tone007 on October 23, 2010, 01:39:15 AM
I'd go with a bit of heavy grease.
Title: Re: FZ-357A keeps greeting disks
Post by: save2600 on October 23, 2010, 02:11:04 AM
Quote from: tone007;586344
I'd go with a bit of heavy grease.


Like that sticky/gooey white lithium stuff?  Seems the brown heavy grease hardens over time. I'd try the lithium grease or lighter machine oil maybe.
Title: Re: FZ-357A keeps greeting disks
Post by: AmigaEd on October 23, 2010, 03:41:39 AM
For a more home based remedy, you could try applying a bit of Petroleum Jelly.
I find it works quite good for repairs of this kind. Easy to apply and not too messy. A little bit goes a long way.

The lithium grease is a good recommendation also. you can even get it in a spray can. The spray can come with a tube so that you can control where it goes. It's a bit expensive, but a can will last a really long time (I've had the same can for 7-8 years) because you really need to use so little of it.

Regards,
AmigaEd
Title: Re: FZ-357A keeps greeting disks
Post by: ognix on October 26, 2010, 10:33:51 PM
Hi!
Check out my new thread to solve your problem definitely!  :)
http://www.amiga.org/forums/showthread.php?t=55020

I had the same problem in my A600HD.