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- The following was recently seen on Ward Christensen's personal
- bulletin board system (312-849-1132) and is relayed here for its
- informational value.
- --Keith
-
- From: Ward Christensen
- To: All
- Re: Squealing diskettes solved
-
- A month or so back I solicited opinions on squealing diskettes.
- Yesterday I solved it with a replace of the PRESSURE PAD on the
- Shugart 801 drives. I also WD-40'd the stepper lead screw, and now
- seeking is as smooth as velvet, IN SPITE of maintenance people's
- advice to leave it "dry" so it doesn't attract dust.
-
-
- From: Gary Elfring
- To: Ward Christensen
- Re: WD-40 and Shugart
-
- I have lubricated my lead screws for a number of years. One of my
- drives started acting up and I noticed that it was very hard to manually
- move the lead screw. I cleaned the screw completely with a freon based
- solvent and then lubricated with a light machine oil. This speeded up
- disk access significantly! Anyway, the choice of lubricant makes a BIG
- difference. After about 6 months I had to go clean and relubricate the
- screw. It got all gummed up. This time I used a silicon based spray
- product. That attracted less dirt and lasts about a year. Cleaning
- and spraying once a year doesn't bother me much. It also a good idea
- to check the pressure pads at least once a year. As they wear out
- the disk reads and writes become less reliable.
-