Noisy drive (bad bearing?) in 3b2

[David J. Carpenter]

The 72 meg hard disk in our 3B2 XM makes a terrible rattling sound.  It
is intermittent, possibly changing with the room temperature, or maybe
just random.  It sounds as if it needs a squirt of oil.  However, it
operates just fine.   
   
Is there an exposed bearing that can be oiled?  Will it eventually fail?


						Thanks!

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					David Carpenter
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