Question about Gamma Tension Head(Prog ST II)

[Kyle7286]

I use a Gamma Progression ST II Crank machine. I can't tell any difference when tightening/loosening this bolt on the tension head. The manual says it's to change the grip of the tension head but I cant tell anything at all.
Is there something I'm missing?
Do you guys ever mess with this bolt?

One more question as well. I was calibrating the machine last night and I noticed as soon as the crank would lock out on the desired tension, the string was slipping very very slightly.. maybe 1lb. Is this just a simple tightening of the clamps?


Thanks in advance for any help or advice.

-Brandon

 

[Gamma Tech]

brandon
you only will notice the difference when the plates are all the way in (all the way to the left in you photo). if the screw is all the way in the plates don't travel in as far and is for thicker gauges of string & thinner gauges may slip. w/ it out the plates will go in further for thinner gauges of string but crush thicker string.

are you sure the string is slipping? it is probably the relaxation of the string. it is normal for string to loose a few lbs once the brake lever 'pops' out (it varies on the type of string also).
bret

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[Kyle7286]

Ok, Yeah i understand. So basically it changes the plates tightness during tension.

Relaxing is actually what it seems to be doing. So to counter the relax, I should string ~1.5lbs over the desired tension? I think ill do that.

Thanks!

 

[Lakers4Life]

You use the gripper adjuster when you string multifilament, Natural Gut and some polys, to prevent damage to the string. Think of it as the grip adjustment on Vise grip plyers, but opposite, instead of gripping tighter, it grips looser.

 

[Gamma Tech]

Relaxing is actually what it seems to be doing. So to counter the relax, I should string ~1.5lbs over the desired tension? I think ill do that.
Thanks!

it depends. if you are happy w/ the play of your rqt than i wouldn't change it. if your rqt was strung on a constant pull machine (dropweight or electric), then you want to raise the tension by 10%. it is common practice because the spring tension doesn't pull out the relaxation, as you noticed. you can find some more info on this if you want to by doing a search too.
bret