drive with 335 RPM but can't adjust any more

[eto]

I have a FD1 which won't read disks. I have replaced the belt, cleaned the head and the drive still did not work. I have now started DSK Test from A. A has 295 RPM and B had 400RPM. I have adjusted the screw as much as I could but it's still at 335 RPM. Anything I can do to get the RPM down to 300?

Drive is an EME-150A

[Kris]

Did you try to invert both drive ? Put the "faulty" drive as A in your CPC to be sure that RPM are still out of range.

[eto]

Did you try to invert both drive ? Put the "faulty" drive as A in your CPC to be sure that RPM are still out of range.

No. How would that have an impact?


EDIT: I have now put the drive into the CPC and it's still 335RPM

[Audronic]

I have a FD1 which won't read disks. I have replaced the belt, cleaned the head and the drive still did not work. I have now started DSK Test from A. A has 295 RPM and B had 400RPM. I have adjusted the screw as much as I could but it's still at 335 RPM. Anything I can do to get the RPM down to 300?

Drive is an EME-150A

Perhaps the BELT is not fitted correctly ??


Keep Safe


Ray

[eto]

Perhaps the BELT is not fitted correctly ??

I would understand if it's too slow, but it's much too fast. Would a belt be able to speed up a drive?

[Audronic]

It can ride up on the Motor Pulley.
It has happened to Me (Once)


Keep Safe


Ray

[eto]

It can ride up on the Motor Pulley.

That's exactly what happened! I thought I cleaned it properly but a tiny bit of the "melted" old belt was just sitting in the edge which I didn't see. When I opened the drive again, the belt was just sitting on that edge. After properly cleaning the pulley, it's now sitting correct and running at 300RPM.

Thanks a lot.

btw: as this comes up so often, wouldn't it make sense to have a proper Wiki page that documents all the typical problems and how to deal with them?