NAD 6050C

[rahandford]

 I am currently repairing a NAD 6050C cassette mechanism and I am trying to find a replacement play idler (idler tyre) for this unit. Does anyone know where I can obtain such parts? Can I use a generic part and if so how do I go about sizing? The fault that I have is that if I put the unit into play/FR/FF nothing happens, but if I push on the idler (by about 1mm) all is OK. Is there a mechanism adjustment for that? I have tried putting the existing tyre on at an angle (and that works) but the speed is so far out I can not bring it back into range. Any help or advice would be very much appreciated.
Thank you.

[mzacharias]

If the idler isn't too far gone (falling apart, etc) it's often possible to clean them, maybe use some "rubber re-grip" and clean the motor pulley and any other drive surfaces. Many times this will restore service for years.