Sign in   |  Join   |  Help

Beogram 3400 intermittent tonearm movement

rated by 0 users
Not Answered This post has 0 verified answers | 4 Replies | 1 Follower

paxto
Not Ranked
4 Posts
OFFLINE
Silver Member
paxto posted on Sat, May 25 2019 4:40 PM

I am working on a Beogram 3400 turntable.  I have lubricated the tonearm lift piston, and have cleaned the cogwheels and other mechanisms. It all works perfectly----for a while---then unexpectedly (and seemingly randomly, though I'm not sure about that), the tonearm does not move over the record when the START button is pushed. If I gently nudge one of the plastic cogwheels, then everything goes into motion as it should.

I don't know if this is a lubrication problem, or a problem with the electronics.

Help would be appreciated.

All Replies

AudioOrigin
Not Ranked
49 Posts
OFFLINE
Gold Member

Hi,

When it does not work properly does the platter still rotate?

Best regards Alistair

paxto
Not Ranked
4 Posts
OFFLINE
Silver Member
paxto replied on Sat, May 25 2019 8:00 PM

Yes

Dillen
Top 10 Contributor
Copenhagen / Denmark
10,904 Posts
OFFLINE
Founder
Moderator
Dillen replied on Sun, May 26 2019 9:09 AM

The cam wheel with all its little arms and levers should NEVER be lubricated.
It MUST be dry and clean and very lose to work as intended.
If you lubricated any of it I suggest you clean it all off again and wipe everything dry and clean.

Only thing that must be lubricated is the cams center bearing, which could be given a little white lithium grease, but it's rarely needed - at least not yet.

Martin

paxto
Not Ranked
4 Posts
OFFLINE
Silver Member
paxto replied on Sun, May 26 2019 7:56 PM

Bravo Martin (as usual): I cleaned everything and now it's working beautifully.  

I grew up on a farm in Oklahoma, and my dad taught me to GREASE EVERYTHING. But those were tractors, plows, and threshing machines---I guess B&O turntables require a lighter touch.

 

Thanks,

Steve

Page 1 of 1 (5 items) | RSS
Beoworld Security Certificate

SSL