Jobo CPA2 help needed with direction reversal switch

[mnemosyne]

I got hold of a nice CPA2 recently as part of a larger darkroom outfit that I bought locally.
The unit is generally in good working order, but I have a problem with the three fingered white plastic fork that controls the reversal of the spinning direction of the engine. The screw that tightens this fork to the plastic cam on the inside of the unit has worked itself loose. Unfortunately, simply re-tightening the screw is not enough for correct function, it seems that the fork has to be tightened in a certain position in relation to the lobes of the cam which runs on the inside and activates the switch proper. I have been trying to figure out the correct position of the fork by trial and error for two hours now, but I have had little success and this is starting to become a big PITA. It would be great if someone who is more intimate with the unit or has gone through the same procedure before could give me some advice as to how to solve this problem ... A picture or a simple sketch that clearly shows the position of the finger in relation to the lobes of the cam on the inside might be helpful too.

 

[Sirius Glass]

Send an email to Dave Smith joboman@aol.com 323 227 1869. I deal with him for Jobo products and enlarger parts. Dave and Norma has a backlog so it takes a few days to respond to emails or calls.

 

[CatLABS]

There are only 4 possible options, 1 of which works.



The correct orientation is to have the middle prong aligned with the "bulge" on the cam.

BTW - we do not have a back log and usually respond to emails within the hour, 24/7.

 

[Sirius Glass]

There are only 4 possible options, 1 of which works.

The correct orientation is to have the middle prong aligned with the "bulge" on the cam.

BTW - we do not have a back log and usually respond to emails within the hour, 24/7.

Yes, but I can take a leisurely drive over, sit down, have a cup of tea and spend an hour taking notes on unpublished technical information and equipment.

 

[CatLABS]

Yes, but I can take a leisurely drive over, sit down, have a cup of tea and spend an hour taking notes on unpublished technical information and equipment.

Our kettle is back in business, and you are welcome to drop by for some rooibos any time .

 

[Sirius Glass]

Our kettle is back in business, and you are welcome to drop by for some rooibos any time .

Sure as soon as you open a Los Angeles office.

 

[mnemosyne]

There are only 4 possible options, 1 of which works.

View attachment 99383

The correct orientation is to have the middle prong aligned with the "bulge" on the cam.

BTW - we do not have a back log and usually respond to emails within the hour, 24/7.

Exactly what I had hoped for ... this is most helpful, thanks a lot!