Ancient (nuts and bolts) turntable lock/ brake on Toalson Crank

brownbearfalling

Hall of Fame
I have owned this machine (Toalson which is gamma in Japan) for years but never had any motivation to fix the turntable lock / brake system that comes with the machine. I can get it to work for a few locks but all the parts come loose afterwards.

If any one is familiar with this type of lock/ brake could you tell me how to tighten the bolts so that it will last through a few usages?

I have tried tighten both bolts with the lever turned out ward away from the machine then when pushing the lever in so that the bolts will be loose. How it works then is that when I pull the lever out, the bolts will tighten again. This method only works on up to 3 usages, then the bolts don't tighten when pulled out. The motion of pulling the lever in and out doesn't full restore and retighten the bolts as it should thus leaving the bolts loose after a few usages.

If there isn't a quick fix, can anyone offer a method I could try?

I can post more pictures if it would be helpful and if people have not seen this type of brake before.

 

struggle

Legend
tighten the two nuts against each other, on either side of the handle (thus squeezing the handle between them). you'll need two wrenches. if it keeps coming loose, you may need to add some loc-tite.
 

Irvin

Talk Tennis Guru
I am just curious why you want to use the brake. I have a break on my machine and never ever use it.

Irvin
 

jmverdugo

Hall of Fame
You need to fix the turntable to tension the last cross on this racquet


other than that I also have never required to use a break.
 

brownbearfalling

Hall of Fame
tighten the two nuts against each other, on either side of the handle (thus squeezing the handle between them). you'll need two wrenches. if it keeps coming loose, you may need to add some loc-tite.
Alright I guess the matter was that I didn't tighten the nuts tight enough. I will have to dig up some loc-tite.

I am just curious why you want to use the brake. I have a break on my machine and never ever use it.

Irvin
I'm not fixing the brake for usage but rather just out of boredom and just to know how it works. I've never needed it nor will i ever "need" it in the future but like I said I have left it the way it was for years. I'm just tweaking up the nooks and crannies.
 

Irvin

Talk Tennis Guru
...I'm not fixing the brake for usage but rather just out of boredom and just to know how it works. I've never needed it nor will i ever "need" it in the future but like I said I have left it the way it was for years. I'm just tweaking up the nooks and crannies.
I have been thinking about taking my brake handle off. Just one more thing for the string to get caught on.

Irvin
 
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