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Anyone recognize this part?


freddy333

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The top pusher on my 116520 Daytona just stopped working. The lever does not seem to be connected to the chrono mechanism and it looks like the rectangular part (in red circle) in this picture may have moved out of position. Also, the end of the pusher lever, which you can see sitting in front of that part, may also be out of position.

Does anyone recognize this part or have a picture showing its proper location

7750a.jpg

Here is wider view of the movement showing the part's location

7750.jpg

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With your tweezers pull on the finger shaped lever away from the movement until the finger is past the rectangular piece, once it gets past this, move it down to contact the rectangular piece and the rectangle should line up and seat back where it should be.

It's not broken, just out of place.

You can also try moving the rectangle towards 90 deg from the arm, and then pull on the finger piece to seat it.

The finger is the spring for the rectangle, and this is what switches between start and stop when you press it.

RG

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Zig - Thanks for the reply. If I understand you correctly, I tried that already, but, in that position, the pusher is locked.....I cannot push it in at all.

Tell me if this is correct: I rotated the rectangle 90 degrees, counter-clockwise, so the 'U' shaped edge is resting against (and in between) the cams to its right. Then I moved the arm to rest against the outer, sloping edge of the rectangle (its the edge at the top of the rectangle in the pictures). Does that sound right? With the rectangle & arm in that position, the pusher is locked, so that I cannot press it in at all.

I have to run now, but I can take another picture of the rectangle & arm when I get back to be sure I have it in the right position (I am pretty sure I do).

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If the pusher is not able to be pressed in, then there is something out of alignment...it could be the cam, or the pusher or something else. I would remove the screw and the pusher and have a good look at the chrono cam and see if anything is out.

Then I would re-install the pusher and test it again, you may want to press on the bottom pusher to make sure the cam is in the reset position.

RG

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R -- Does this look right

rectangle_aligned001.jpg

Assuming the spring arm & rectangle part is now correctly positioned, it looks like whatever cam the rectangle part is supposed to move is out of alignment or something, because I am still unable to press the top pusher lever. It does not move at all, and the bottleneck is definitely where that rectangle meets the cam. Actually, it almost looks like the 'U' shaped side of the rectangle part is not even fully seated against the cam. But I cannot get the cam to rotate in either direction to try to realign it with the rectangle part. I have tried reseting the chrono several times, but that does not make any difference.

Which screw are you talking about removing and am I going to have problems getting the cam reassembled after I remove it (or the screw)? I have never disassembled that before.

I do not know if this is related, but this movement still has the original problem that started this whole mess -- the hour totalizer hand keeps moving when the chrono is OFF. The odd thing is that if I reset the little spring on the chrono reset lever, the hour totalizer is fine......that is, until I use the reset pusher the next time (like when I was trying to realign the cam in the paragraph above), the hour totalizer hand starts running again. When I removed the bridge to check the reset lever spring, it is fine--right where it belongs. And everything else looks correct also. Does that make any sense?

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Well I really don't know what else I can offer...it's really hard to troubleshoot from a distance...some things don't look right, the moveable rectangle on the pusher shoudl be sitting flush with the spring, but it's off a bit...as well the chrono cam appears to be pressed to far in the CCW direction because I can't see the end of the 12 hour transfer lever in the notch for the cam, so it looks as if you have a number of problems that are causing this issue.

RG

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