Dual 1219 lateral friction question

[Joebass]

Hello everyone!

Thanks for all the great info on here, super helpful for fixing up old audio gear!

My question is this - How do you determine if a Dual tonearm has the dreaded the single/multi mechanism failure?

I am working on a 1219 that has a curious lateral friction especially in Multiplay position. I have cleaned the multi/single mechanism, and replaced the o-ring. The ball bearings are in place, and lubed. The arm easily, smoothly and firmly raises up and down and locks into single or multiplay position. On other machines i have worked on, replacing that ring and sometimes the balls if they are missing, has always freed the arm from any lateral friction. However on this machine, the arm remains slightly stiff unless you push the single/multi control just past single on the single setting. The friction is worse in Multi position. The singly multi mechanism does not look visibly damaged. Again, pushing the position selector just past where it clicks into single frees the arm.
I posted this at vinylengine too...

I have removed the dried grease from the automatic parts of the table mechanism... any suggestions?

Thanks!

-joe

 

[NoTransistors]

Two things-

Have you considered adjusting the the plastic guide?
Also, if the outer ring is not quite where it belongs, the nut needs to be loosened and ring re-positioned. If my internet doesn't go out today, I will watch for your reply.

 

[Joebass]

Two things-

Have you considered adjusting the the plastic guide?
Also, if the outer ring is not quite where it belongs, the nut needs to be loosened and ring re-positioned. If my internet doesn't go out today, I will watch for your reply.

Thanks so much! I got it all sorted... it was indeed the plastic guide and adjusting part #219 in the service manual brought it back into beautiful friction free playing mode...
Gosh, these tables sound great when they're all set up properly! Thanks again!

-j

 

[NoTransistors]

 

[Grbluen]

AK is the best!