My first movement teardown - and reassembly

[kamma 1]

Well done on the dissection, my favourite movement to work on these, as they are so simple.

 

 

Thats easy for you to say

[GenTLe 1,509]

It's the cleaning that will get you.

If you're unfamiliar with the movement, use lots of small baskets.

 

Yep! I'll do!

Actually... Do you think I should remove the balance and hairspring from the balance bridge, or I should limit the unassemble to the balance arbor novodiac assembly and related jewels? (the incabloc on the plate is already out)

 

Well done on the dissection, my favourite movement to work on these, as they are so simple.

 

Thanks Ssteel! Not so simple for a newbie anyway At list the only (damn) easy-to-loose microspring there is the click one

[streethawk 0]

Very nice, I keep seeing videos of people tearing down movements on youtube too, but I will never have the guys to tear one down!

 

Well even if I do, I definitely dont have the patience or competence to put it back together!! lol

[10:10 Watch Repair 1]

It's the cleaning that will get you.

If you're unfamiliar with the movement, use lots of small baskets.

 

Yep! I'll do!

Actually... Do you think I should remove the balance and hairspring from the balance bridge, or I should limit the unassemble to the balance arbor novodiac assembly and related jewels? (the incabloc on the plate is already out)

 

Well done on the dissection, my favourite movement to work on these, as they are so simple.

 

Thanks Ssteel! Not so simple for a newbie anyway At list the only (damn) easy-to-loose microspring there is the click one

ETA says not to remove the hairspring stud from the holder. i.e. separate balance from cock.

You can reassemble the balance and cock onto the main plate for cleaning.

[TRANSPORTER 1]

Just dip the hairspring and cock and balance in lighter fluid, swish it around a little then tinse in alcohol and allow to dry ok, but keep it covered until fitting time so as to keep any dust off it or each part of the movement. Ive just torn down a seiko 7002 movement twice due to poor running after a rebuild, the culprit was a tiny thread like bit of crap only visible under a x10 loup and at a certain angle under my light, it was on the escapement wheel in the end.

moral of the story is take your time and inspect every component before fitting.

[Odyseus 1]

Just dip the hairspring and cock and balance in lighter fluid, swish it around a little then tinse in alcohol and allow to dry ok, but keep it covered until fitting time so as to keep any dust off it or each part of the movement. Ive just torn down a seiko 7002 movement twice due to poor running after a rebuild, the culprit was a tiny thread like bit of crap only visible under a x10 loup and at a certain angle under my light, it was on the escapement wheel in the end.

moral of the story is take your time and inspect every component before fitting.

 

Better to use Bergeon 'One-Dip' as it cleans and lubricates the hair spring ( also use this on the balance spring jewels)

[GenTLe 1,509]

Ok, finally yesterday I found in my office a nice box from CousinsUK waiting for me.

I got my oils and my greases, so in the evening I started to work again on this movement

 

Firtst a shot of the low cost solution I've found to keep my pieces, it's done by a capped Tupperware-like container, that can be properly closed to keep the dust out, and a silicone cake mold (the ones that can be placed in the oven), which has the advantage to not release any debris and also to make the smallest parts not to be "eaten" by textile weft:

Here it's a bit full because there're 2 movements inside (part of the second is in the black container).

 

 

About the reassemble: well, I took 2 full hours to just clean, rinse, dry, oil and reassemble the damn keyless levers. It's not that difficult... Once you got how the things have to be put in place

Ah well, also the plate balance pivot jewel has been a little PITA: it's so damn small that it's not easy to manage it at all...

 

 

 

 

Next steps in the future episodes.

Edited August 19, 2014 by GenTLe

[Stuvetjee 17]

Congrats on the teardown mate!

 

I dont have the balls or skills to do that

[kamma 1]

Great update mate its something I want to try on an old movement I have lying around here if I can ever get my hands on the rwg toolkit

[GenTLe 1,509]

Good one this of the plastic bag, have to find some transparent enough!

 

So, in this episode I reinstalled the train gears and bridge and the winding bridge.

 

1) up the train gears! They run smoothly (the inertia is really low as they are very light)

 

 

View My Video

 

2) winding bridge mechanism:

 

A detail of the stop lever:

 

 

The click and its spring that made me to pass some bad moments when it decided to fly away... Search and search and, in the end, it was still on the movement, just hidden between the train gears wheels...

 

 

 

3) winding bridge fully assembled. I'll have probably to remove it again as I noticed that there is probably a gear of the barrel that has some dirt or something inside that is making the wheels not to run properly fluently at one point.

 

[kamma 1]

Great work mate, Bet your getting a bit of a buzz seeing it go back together

[binatang 0]

I know this spare movement but you should get better screwdrivers or sharpen/shape you existing ones.

Them screw slots are getting chewed up!

[GenTLe 1,509]

Ok guys, as some expert made me to notice, I had put too much oil, at the 1st re-assemble.

 

Plus I had to wait the delivery of an incabloc top jewel that I lost as a very newbie, so the task stopped for around 2 weeks.

Many many thanks to the member misiekped (from RWGForum) that sent me a couple of them for free from USA!!!

 

Then this weekend I restarted again

And when I write "restarted" I mean that I throw away all my previous job and started back from the fully unassembled movement, trying to oil it properly, this time.

 

So, here there is my tray with all parts already cleaned and divided as from the ETA assembly/oil charts pages:

 

 

Here the plate, clean and ready to start getting pieces:

 

 

The stem and its 2 gears are up (note the very end of the stem appearing next to the main spring barrel insertion place):

 

 

After the plate has been overturned, the incabloc bottom jewel (also disassembled, cleaned and oiled) and the keyless have been added:

 

 

Up the gear train, from the left you can see the center (or 2nd) wheel, the 3rd wheel, 4th wheel (in the center of the watch, driving the seconds hand) and the escape wheel:

 

 

Here with the train gear bridge assembled:

 

 

And up also the winding bridge. This time I started to properly managing the art of refitting the micro-spring of the click so no curses

You can also see, on the right, the pallet fork just in place with the plate pivot in its jewel:

 

 

On the lower part, the pallet fork bridge has been added (a bit out of focus):

 

 

Up the balance wheel (it started to move right away with that really minimum force the main spring had in it: like 1 click jump of charge... ), but still no incablock in it, since it was out to get oiled:

 

 

Incabloc refitted:

 

 

On a side, this is the autowinding bridge during assemble:

 

 

How the plate (dial side) looks like when all the other side has been assembled:

 

 

The dial train and date setting mechanisms are now up:

 

 

Here again the dial train and date setting mechanisms, this time with the dial train bridge mounted (the shadows on the bridge aren't oil, just some strange reflex):

 

 

And, finally, the movement fully assembled (this 2936-2 comes with no day wheel and with the GMT function):

 

 

Something I found a bit complex: hands assembly. Matching the date change, the GMT hand and the hour/min hands to make all looks fine has not been an easy thing...

 

 

Finally all back in the case (yes, the dust is outside, not inside):

 

 

After the treatment (that was triggered by messy keyless from the very 1st moment I got this watch), the keyless are now working fine (still a bit stiff, but not like at the beginning when the stem was coming out straight away from the movement and not coming back in...) and the watch is gaining around 30sec/day, but considering that the movement still has to be regulated, I consider this a pretty good result

 

Hope you've liked the sharing

 

GenTLe

[JSJ 0]

Magic! Thanks mate, yes I do like it .

[Mechwarrior 2]

Bravissimo

[GenTLe 1,509]

Thanks

 

And If I got annoyed by those little marks just right to the dial center... Well... I've another identical dial to use

[kamma 1]

Great job pal, well done something I really want to have a go at on an old movement I have, Just need to get some oils/grease and a cleaner