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HP41 card reader repair
12-01-2023, 11:12 PM
Post: #10
David Hayden Offline
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 		Posts: 462
Joined: Dec 2013
RE: HP41 card reader repair
(11-27-2023 04:19 PM)Karel Wrote:  Thank you again, David.

You are right. I opened the reader and foud deteriorated gummy wheel indeed.
I cleaned everything and I am now searching for right size of wire insulations to repair the coupling between motor shaft and worm gear.
As seen in this thread:
https://www.hpmuseum.org/cgi-sys/cgiwrap...ead=163396

Karel
If you have a drill press, consider the method described here starting on page 41.
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Messages In This Thread
HP41 card reader repair - Karel - 11-18-2023, 12:39 AM
RE: HP41 card reader repair - AndiGer - 11-18-2023, 12:16 PM
RE: HP41 card reader repair - Karel - 11-18-2023, 01:34 PM
RE: HP41 card reader repair - AndiGer - 11-18-2023, 05:10 PM
RE: HP41 card reader repair - Karel - 11-18-2023, 06:28 PM
RE: HP41 card reader repair - David Hayden - 11-21-2023, 07:26 PM
RE: HP41 card reader repair - Karel - 11-21-2023, 09:10 PM
RE: HP41 card reader repair - David Hayden - 11-25-2023, 02:15 PM
RE: HP41 card reader repair - Karel - 11-27-2023, 04:19 PM
RE: HP41 card reader repair - David Hayden - 12-01-2023 11:12 PM
RE: HP41 card reader repair - Karel - 12-03-2023, 02:19 PM



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