STEPPER UNIT HELP REQUIRED

[ddstoys]

Well im having issues can any one offer advice.

  Im trying to get a stepper unit as shown below working ive cleaned and lubed the shaft, rivets wipers but its still wont reset only way i can get ti to work is loosen off the center nut which makes it sloppy and doesnt always work.    Tensioning the return spring didnt help no matter how many turns i added to it????

[Strangeways]

Hmm..

Drop a drop of machine oil on your finger and wipe it across the contacts - cover all of them lightly.

See you you go.

[ddstoys]

Sorry Nino i forgot to add that id done that already

[dj10555]

Does it stick or catch at the same point each time? Could one of the shoes but stuck or catching when it resets?

[chris288]

Daniel is it worth checking to make sure the solenoid is adjusted properly so that it will pull in strongly.

I have just pulled apart and cleaned my player unit( using your guide ta very much ) on my Card Whiz and I found even though all the parts were moving freely I had adjusted the solenoid just out of range of being able to pull the plunger in and if I went too far the other way then the arm connected to the plunger was just touching the solenoid housing not allowing it to pull in and therefore move the stepper around.
I moved it somewhere in the middle and it was fine.

Might be worth a check.

[ddstoys]

Thanks for the advice chris but all the solonoids are working as they should its just the return thats not working.  And it doesnt return from any point DJ ive even sanded all the wipers smooth to take away any friction they had

[ddstoys]

PROBLEM SOLVED       I cut up and old stepper unit with the fingers and broke open the slotted metal disks holding it together and used them as spacers to push the disk further away reducing the drag on the unit

[ajlaird]

I was about to say that if you can't fix it then most here won't be able to help.

Well done, though, clever solution.

[ddstoys]

Thanks Andrew
Ill try get some pics of the fix when i go out to the shed after tea