18 Feb
1999
18 Feb
'99
9:19 a.m.
I have a noisy ST 251 hard drive. It sounds like the bearings.
Is it heretical to think I may be able to lubricate the bearings?
They appear to be easily accessible on the bottom of the drive.
Thanks,
Dave
18 Feb
18 Feb
10:47 a.m.
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11:20 a.m.
Date sent: Fri, 19 Feb 1999 00:47:45 +0000 (GMT)
Send reply to: classiccmp(a)u.washington.edu
From: ard(a)p850ug1.demon.co.uk (Tony Duell)
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: Noisy ST 251 HD
Spin it up and watch that stepper motor centre, (you can paint a
soild semi-disc black with permanent marker, this easier to watch).
Is that noise like the low, "soft gritty" such as grinding corn by
hand on that platter spindle?
This is another leading cause of ST251x series killer. (That
includes ST277x, ST296x) because spindle hub design and whole
thing is very poorly designed and built poorly.
Jason D.
I have a noisy ST 251 hard drive. It sounds like the bearings.
Are you sure it's the bearings? The noise usually comes from the earthing
contact on the bottom of the spindle. Move it sideways slightly and see if
that silences it.
Is it heretical to think I may be able to lubricate the bearings?
Very unlikely. There must be some kind of seal round the spindle to
prevent dust coming up there. No chance of oil getting to the right
places.
-tony
3:58 p.m.
Dave,
You haven't got anything to lose but I think anything that will penatrate
into the bearings is also going to penetrate into the disk chamber. Check
and see if it isn't the grounding strap first. They're notorious for making
noise.
Joe
At 03:19 PM 2/18/99 -0800, you wrote:
I have a noisy ST 251 hard drive. It sounds like the
bearings.
Is it heretical to think I may be able to lubricate the bearings?
They appear to be easily accessible on the bottom of the drive.
Thanks,
Dave
2:28 p.m.
It's not the grounding strap. It's certainly bearings.
I tested the drive some more and decided it had too many
errors anyway, so I'll junk it.
Dave
Joe wrote:
Dave,
You haven't got anything to lose but I think anything that will penatrate
into the bearings is also going to penetrate into the disk chamber. Check
and see if it isn't the grounding strap first. They're notorious for making
noise.
Joe
At 03:19 PM 2/18/99 -0800, you wrote:
>I have a noisy ST 251 hard drive. It sounds like the bearings.
>
>Is it heretical to think I may be able to lubricate the bearings?
>They appear to be easily accessible on the bottom of the drive.
>
>Thanks,
>Dave
>
19 Feb
19 Feb
7:15 a.m.
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ard＠p850ug1.demon.co.uk -
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