Premium stringer 8700 electro инструкция

Hello,

My tennis club owns a Premium Stringer 8700 Electro. The gripper physically looks more like the one you find on the 9200, which has an open design, instead of the «original» one that has a closed design. I consistently get string slippage with slick strings like monofilaments and sometimes even gut. It grips fine when I string synthetic gut or multi. But when you combine the fact that the racquet mount sits pretty far from the motor, the fairly unconventional tensioning system with a pulley/string guide, and slippery strings, I’m left with fairly little string when I’m on the last mains or crosses and the strings just keep slipping away from the gripper. Is there anything I can do? Aside from buying my own machine, which I can’t really afford to at the moment both financially and in terms of storage space.

This is what the vanilla gripper generally looks like when I look it up online. It seems to sport some kind of cover.

This is the one on the machine at my club: it has an opening on the side. Disregard the fact that the picture comes from a different stringing machine. The top portion, the «jaw» seems spring loaded: I tried to use it to bite the string, but I have not been lucky, even when trying not to use the string guide/pulley (in which case the string just slips out of the jaw).

When was the last time the gripper jaws were cleaned? I suspect you have residue from prior string jobs inside the jaws.

Good question. Probably not recently if ever. I haven’t dared to dismount it since it’s not my machine. I won’t be able to look it up before a while, the club house is closed at the moment. I think I’m the only one voicing the issue, so I had figured that I might be doing it wrong… even though there’s a label on top of the machine showing you how to use it.

Thanks for all the replies. I ended up taking off the top portion of the jaw to scrub it. I ended up with string residue in the jaw when I was done stringing. I still have to be careful about holding the end of the string while I tension it, but at least stringing co-poly is only unpleasant instead of being impossible. It’s still not the kind of mechanism I would recommend, it’s quite the waste of time to wrap the string around ta post then wrapping it around the drum and inside the jaw, AND then make sure the string is being pulled correctly.

@Lukhas Are you wrapping the string completely around the gripper assembly before placing it between the 2 jaws?

Here’s a picture of the instructions on the machine while I was cleaning the jaw.

In addition to cleaning I think the other thing that would help is to either cut more string from a reel so you can get to the gripper to adequately wrap it and/or if using packets buy a starting clamp and bridge. To bridge I would use string that typically does not slip for you (For example I have Prince Topspin 15L in mine).

I don’t have such a string, but ironically I had to use my Pro’s Pro starting clamp to finish the mains on a Yonex Ezone 100. While I was stringing my racquet, I was asked to string someone else’s frame with a set of Babolat Hurricane Feel and accepted. While their racquet was strung one piece, I preferred to follow Yonex’s instructions to string two pieces. I cut the set in half, and there was not enough string to reach the tensioner at all when finishing the mains. I used leftovers from my own string job to tension the mains; I used a piece of Yonex Poly Tour Pro I put in the mains rather than the Babolat Origin I have in the crosses.