Advice? Trying to repair vintage Tempus Fugit clock

[JustATinkerer]

I picked up this cute clock (see pic) for $1 at a yard sale and have made it a personal project to try to get it working again. Professional repair is not currently in my budget and I am enjoying trying to do it myself, but could use some information/advice please.

Originally the knobs turned to set the time and alarm, but the wind-up key was stuck and the alarm only made a slight click. I removed the back and found a loose screw - once returned to its place the key turns again, but still won't power the clock. I then removed the 2 top plates and found 3 loose cogs. When the cogs were removed the alarm began working. I returned 2 cogs to their place, now the wind-up key spins the hands then rapidly spins back and stops, and the alarm is back to just a slight click. The 3rd cog (see pic) is still removed as I am unsure of its proper placement. If anyone can help me find a manual or diagram, or advise me on repairs, I would be deeply appreciative. 

[Kalanag]

Why don‘t you show us the movement? 

Does it look like that?
 

 

Edited May 20, 2022 by Kalanag

[JustATinkerer]

 This is what happens to the hands when I wind the key, just a slow quarter turn.

 

The 2 cogs with blue dots are the ones I found loose and put back. When they were removed completely the alarm worked, but alarm went back to just a slight click when it tries to engage as soon as I put the cogs back.

Edited May 20, 2022 by JustATinkerer

[Kalanag]

The assembly seems to be wrong. The pinion circled red is not meshing with a corresponding wheel. So the escapement is not engaged and the hands rotate when trying to wind the mainspring.

 

[JustATinkerer]

Ok, do you know where it should be? That is where I found them floating when I opened it, and it slightly engages the small cog at the top (to the right of the timing screw assembly), but doesn't fit quite right. The alarm also forces the minute hand forward about 5 mins when it tries to engage, but engages and rings fine if that cog and the one below it are completely removed. 

Edited May 20, 2022 by JustATinkerer

[Kalanag]

Don‘t know, but you can follow this logic: The pinion on the escape wheel should mesh with the so called „fourth wheel“ which again has a pinion that should mesh with the third wheel. The third wheel has a pinion that meshes with the center wheel on which the minute hand is positioned. The center wheel should have a pinion that meshes with the teeths of the main spring barrel.

The wheels that have not been in place should be the fourth and third wheel.

Edited May 20, 2022 by Kalanag

[oldhippy]

This wheel is the wrong way round.

Have a look at this site http://horology-student.org/movements/pocket-watch-movements/swiza-mechanical-alarm-clock/

 

[JustATinkerer]

Thank you! I will try that. Regarding the 3rd loose cog (small silver star), that should be under the winding key engaging the affixed cog, right?

[oldhippy]

That goes here. That operates the alarm and acts as a stop so the whole mainspring doesn't run down. 

[JustATinkerer]

Thats what I thought. Thank you!! Will try all that and see how it goes.

[watchweasol]

Hi You might find the attached sheet handy for locationg parts etc.  as Olh Hippy said the wheel is the wrong way up.  How come they were loose. Was the plate undone / loose.  and are the pivots ok.

2797_Swiza NEW (1).pdf

[JustATinkerer]

Thanks! I don't know why they were loose when I opened it, I found it in the bottom of a box of tools at a yard sale like that. 

[transporter]

Well first off I would advise you to listen to OH, but also I would remove the movement from the case to carry out any work,  it will make lining up the pivots a lot easier. If you don’t there’s a strong possibility that you will snap a pivot when putting the plate back on.

[PeterK]

I have the same clock in new condition, and I suspect the old oil is gummed up and creating too much friction for the movement to work. I have a similar skill level to just a tinkerer and wondering if anyone knows if the circled in green on the pic as the screws that will release the assembly from the case for further inspection before starting to dismantle the assembly? I cant work out how to insert the pic so I will try they are the 2 bottom left and right that appear recessed, and 1 at the top of the assembly, almost forming the tip of a triangle shape from the two at the bottom. Please advise regards Peter _ Australia