Vivace

[The Limey]

got mine the other day.... runs great ,.without a needle set up in it......does NOT work at all with the t-tech set up....clicks but does not move.... put a normal set up in it, and it ran for a few minutes, then every other time I went to push my foot switch, it did NOTHING....had to keep unplugging and replugging in the machine to get it to run..... using a critical cx-1 power supply.... any suggestions so I don't have to send this thing back? NEVER had a problemwith any of my old Neo-tats......got the 3.5 motor, and a 4.2mm motor.....switched out the motors, and the 4.2 will NOT run at all in the machine.

Friction is probably the enemy here especially as you are having major issues with the 4.2mm longer stroke;

You need a little more juice in the voltage department to run T-Techs vs a regular needle set up but as you have regular Neo-tats I'm sure you've cranked that up already so, if that didn't fix it; clean the slide and contact areas and re-lube them with Superlube oil not grease and you should be set.

My 3.5mm Neo-tat wouldn't run with T-techs either but after a quick chat with Ray this was his solution and it worked fine.

Worth a try if nothing else.