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Beocord 5000 4923 Belts/Reel

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OfficerObie59
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OfficerObie59 posted on Thu, Oct 3 2019 11:45 PM

First post and I’m looking for some advice, so please bear with me if I’m violating any forum norms and not using proper terminology...

I just picked up a Beocord 5000 4923 at a local thrift store. Belts are gone (and turned to goo) which I expected, but the rubber roller behind the takeup reel that appears to driven by a brass capstan is shot as is the takeup reel peg (specifically, the plastic part of it that retains the roller) and also what appears to be a plastic brake.

While every tape forum I read said to come here for belts, I can’t find a thing online for transport parts. I read that this is a Naki transport, but I haven’t a clue as to which one. I’ll try to post some photos shortly.

Bottom line, are these parts unobtanium, or is there a way to source them? I’d love to add this to my system, but if it makes more sense to sell it for parts, I’ll probably end up doing that instead.

Thank you,

Obie

 

 

 

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OfficerObie59
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Dillen
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That right reel table was bodged pretty good. It even seems to have eaten away at the black plastic brake arm as well!
I have the correct belts, new rubber parts for the reel tables and practically every other part you may need for this Beocord.
PM or email me.

Martin

OfficerObie59
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Email sent.

Out of curiosity, any idea what might cause this to happen? I'd hate to replace the parts just to have it occur after I fix it. Judging by the damage, that part was probably smoking at some point.

Visible damage is clear on the three parts circled. I didn't see this when I posted last night, but the piece circled to the right of the rell table also has a pretty good divot from the rubber on the reel table which appeared to be spinning when it wasn't.

Obie

Dillen
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You'll need something like this:

The rest, I think, will just need a good cleaning.
Why this happened is difficult to say, but it's quite common to see the rubber on the reel tables turning hard, and that
could have started the eating of the brake arm.

Martin
(Happy to see a Beocord problem that wasn't caused by cheap Ebay belts, requiring a replacement motor+)

refrector
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Hello, I'm working on my spare Beocord 5000 (like this one) for practice before installing new belts on my working unit.  Instead of starting a new thread I thought I'd just continue this one, as it's not very old and has photos that show what I'm trying to fix.  If I should start a new thread please let me know.

As seen in Obie's last picture, the reel springs keep the cogs raised to engage the tape reel.  On mine, the left has some movement, but won't really pop all the way up, and the right is very stiff and I'm not having much luck freeing it up, it likes to stay down and won't grab the tape reel.  

Is this a weak spring issue, a lubrication issue, or can they get spun out of position in a way that makes them 'sticky'?  When I raise them up manually the deck is working as it should.

FYI, I have new, correct belts from Dillen, and the Beocord appears to be completely internally unaltered and the R20 resistor is fine.

Thanks.

refrector
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OK, so a quick update, I figured out what's happening.  For anyone else who encounters this issue:  When you pull the top plastic cone (seen far lower right in Dillen's pic), there is a small black cylinder cap that presses onto the metal spindle and holds it together.  Something (rough treatment/jamming a tape in forcefully, maybe) has cracked the post on the part I believe is referred to as the 'reel table' where the cylinder cap presses in.  Now when you press in the cap, it expands the sides of the hexagon and causes the slider to bind.

As this is my spare unit, I've managed to get it working using a very small file and a lot of patience.  If it were my main unit I can only assume the correct fix would be a new reel table.  

Anyway, in case anyone else is fighting the issue, that's what I found. 

Dillen
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Each of the two spools (hubs) consists of a reel table with a hexagonal stem, a spring that pushes up a tri-wing bushing, a top hat inserted at the top end of the
stem and a pointy top cap.

The hexagonal stem part breaks and the stem opens up slightly, binding the spring action of the tri-wing. When this happens, the spool fails to grip inside
the reel of an inserted cassette tape.
The best repair is a replacement tape spool, but simply glueing the tri-wing bushing to the top of the hexagonal stem in its uppermost position works surprisingly well.
Push down the tri-wing, put a little glue on the stem, pushup the tri-wing and wipe any excess glue away.
Don't get any glue in between the top hat and the top cap or the spool cannot rotate.

New belts and new idler wheel and reel table rubber parts are available - PM or email me.

Martin

refrector
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Martin, thanks for the response and tips-and correct terminology!  Short of calling it a 'thingy' I was grasping a bit for the right words.  The deck is working great so far, we'll see if my fix holds long-term.

I will place an order with you shortly, I've not had time to get to my other 4923 yet.  I forgot to order tray belts last time.  

I really enjoyed fixing this.  I love the way the board sits in the service position and allows you to work without it being in the way or getting moved over and over, which just increases the chance of breakage.  It makes accessing the working assemblies straightforward and low-risk, it's frustrating trying to fix one thing and having something else break because I had to reposition it repeatedly.  

 

Will

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