View Single Post
Old 24th Jun 2021, 7:37 pm   #41
DMcMahon
Dekatron
 
DMcMahon's Avatar
 
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,603
Default Re: Uher CR 210 Cassette Recorder Check Out

After quite a struggle got the motor dis-assembled, the 2 brass pulleys were not keen to come off the motor shaft at all. Needed heat and leverage, think a very tight interférence fit, not looking forward to refitting the pulleys.

Found 2 of the 3 sprung contacts are stiff and feel graunchy when contact moved against its spring, hopefully with a good clean these will improve. The third contact is free to move, but its centrifugal weight fouls (stopping the contact full range of motion against its spring) a brass circular disc that sits on the motor shaft behind the contacts assembly. The disc was tilted over, I have now re-aligned it and the contact now does not foul.

The 3 segment copper contact plate that the 3 contacts make contact with needs a good clean.

David
Attached Thumbnails
Click image for larger version

Name:	Motor stripped.jpg
Views:	71
Size:	48.5 KB
ID:	236374   Click image for larger version

Name:	Contacts assembly.jpg
Views:	65
Size:	69.5 KB
ID:	236375   Click image for larger version

Name:	Tilted disc behind contacts.jpg
Views:	57
Size:	49.1 KB
ID:	236376   Click image for larger version

Name:	Contacts 3 segment contact plate.jpg
Views:	57
Size:	48.6 KB
ID:	236377   Click image for larger version

Name:	IMG_20210624_173228006.jpg
Views:	59
Size:	39.5 KB
ID:	236378  

DMcMahon is offline