Electronic Tension Head

J

JBurl

New User
I just received my new Wise tension head. Before having the tension head I strung everything on my crank machine. With the new tension head you get so much more feedback about what the actual tension is that you are pulling. I find that the tension tends to jump around a lot and then after a few seconds ‘settles down’ to the correct tension. Do you guys normally wait for the tension to stabilize or do you just clamp off and keep going? I would imagine that you get a more consistent string job by waiting but it takes a lot longer. Does the tension on more expensive electronic stringing machines jump around a lot?
Thanks for your thoughts.
 
It does a little especially if you have the "Pre-Stretch" function on. Though it's usually pretty fast. Just wait for the tension to reach the desired preset then clamp down. Some strings take longer to settle than others, but it's only a few seconds. Also keep the racket from swinging too wildly to help it settle faster.

If you want to see the tension drop of a Lock out, turn off "Constant Pull" and watch the numbers slowly drop.
 
Tension on any machine that has a load cell and a real time readout will jump around, this is nothing out of the ordinary.....

As for letting strings settle before clamping.... (I use constant pull with 10% pre-stretch)..... only on polys do I wait extra or even pull an extra time.... polys are more apt to tension loss so I let them sit a few seconds longer before clamping. I might do the same for an occasional multi that is extremely soft, but that's about it.

rich
 
One of my Wise Heads is making some groaning noise when pulling. So far, it still tensions fine. Anyone care to venture a guess as to what might be causing this?
 
^^^^ Hey Lakers ... could you send me an email at mel.lamagna@gmail.com regarding some questions I've been wanting to ask you about stringing machines? (Sorry to hijack this thread, I didn't know how else to get a hold of you. Thanks!)
 
mel said:
^^^^ Hey Lakers ... could you send me an email at *******@gmail.com regarding some questions I've been wanting to ask you about stringing machines? (Sorry to hijack this thread, I didn't know how else to get a hold of you. Thanks!)
Click to expand...

You could of sent me an email by clicking on my name or profile, but maybe you don't have enough posts to do that yet.
 
I love mine as well. I don't use the prestretch on anything but gut for myself as the resultant string bed is too boardy for my tastes. My Wise is smooth and runs to tension without jumping around. I have been plagued by the dreaded flashing '3', but hopefully that is all behind me now.
 
Mine is the 2nd model that came out. I still have the 1st model too. It just started a week ago making this noise, although it made it some when I 1st got it. I had called Herb when it was new, and he said not to worry about it unless it didn't tension correctly. It only did it with stiff strings back then (poly & kevlar). It was better today. It's got around 2500-3000 rackets on it, so maybe some bearings or something are starting to wear. Just wondered if any of you guys who had taken one apart might have an idea.
 
The circuit board is directly below the resting gripper, and the motor is towards the other end. You can't see much because of the dust shield. You'll have to open it to lube it properly. Someone mentioned they open the unit to lubricate and tighten some of the screws, on a regular basis.

The screws are 2.5mm hex. Open the back slowly, there are wires connected to the curcuit board. You should take a picture of the wire connections, just in case you want to remove the them temporarily.

Just be careful screwing the top screws when closing. You can blowout the shoulder mounts if you turn too tight.
 
Steve Huff said:
One of my Wise Heads is making some groaning noise when pulling. So far, it still tensions fine. Anyone care to venture a guess as to what might be causing this?
Click to expand...

I had the same I sent my unit back to herb and they just retensioned it

i took a video of it this time ill see waht he says
 
Lakers4Life said:
The circuit board is directly below the resting gripper, and the motor is towards the other end. You can't see much because of the dust shield. You'll have to open it to lube it properly. Someone mentioned they open the unit to lubricate and tighten some of the screws, on a regular basis.
.......................
Click to expand...

That might have been me.... my unit is out of warranty; it was making an unusualy noise and the gripper was noticably loose.... I took the back off to tighten the gripper and lubed the worm drive shaft with a light coat of wheel bearing grease. The noise went away and the gripper was tight.

If you don't want to take the back off to lube the worm shaft you can get a piece of thin cardboard about 3-4" wide to push the dust bristles out of the way and lube the shaft with a Q-tip and grease thru the slot that the gripper traverses .....
 
I had 2 of them as well, at various times (long story) and would set them to "beep" when tension was reached.
I'd just wait for the audio and clamp.
The tension was always stable at that point.
I sold mine a little over a year ago after I got my current machine.
 
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