Jump to content

Johnson Grounds fusee movement disassembly


szbalogh

Recommended Posts

Do you intend to repair the chain or try for a replacement. Repairing the chain is not an easy task, if your not careful you will do more damage then you already have. You might need to take the fusse apart to check the teeth on the ratchet, also you will be able to grease the ratchet. 

  • Like 1
Link to comment
Share on other sites

22 minutes ago, oldhippy said:

Do you intend to repair the chain or try for a replacement. Repairing the chain is not an easy task, if your not careful you will do more damage then you already have. You might need to take the fusse apart to check the teeth on the ratchet, also you will be able to grease the ratchet. 

Repair for sure ;) Already collected the tools and materials.

Just wanted to ask if the ratchet/fusee cone should be disassembled. As i remember it is also secured together with a pin. 

Link to comment
Share on other sites

Please look at this picture! Browsing around the net i have noticed that there is a click wheel missing, but the click is present (green circle).

But maybe is there an other click in this movement? Please look at the part in the red circle, which engaging that steel gear mounted in the fusee cone (red arrow). Is this normal? Or what is behind this?

 

Click.jpg

Link to comment
Share on other sites

My sight isn't very good these days. The part in the red circle looks like its for the maintaining power, when its between the plates it rests on the fusee wheel.  Here's a picture of what the ratchet wheel looks like. If you could get a closer photo I might be able to see better and help more.

 

Genuine-Pocket-Watch-Parts-Fusee-Under-Dial.jpg

  • Like 1
Link to comment
Share on other sites

5 hours ago, oldhippy said:

My sight isn't very good these days. The part in the red circle looks like its for the maintaining power, when its between the plates it rests on the fusee wheel.  Here's a picture of what the ratchet wheel looks like. If you could get a closer photo I might be able to see better and help more.

Yes, this is the type of ratchet gear i am missing. So both are needed for proper working?

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Not a family member, and yes, it no way near as good, as some information got lost from original site and some information got incorrectly copied. The original site is available as iOS app here: https://apps.apple.com/fi/app/ranfft-watch-movements-archive/id6502008939
    • Outstanding, Marc! Your information is really helpful and clears this up, especially given that yours were purchased as sets. Thanks, man. So, it appears I jumped the gun on this one, but I am relieved. I will say, though, that all of my reamers and concave pushers are number-stamped and appear to be of better quality.  Also, the bayonets on my pushers are actually the same color as the steel.  The next thing to do is restore the heads of these pushers with some polishing paper.  Alex at the Watch Repair channel has a nice little video on this.   I appreciate your help! Frank      
    • Just installed it on my iPhone (my only iOS device) and it appears to be intact and functional. I may have to go out and buy myself an ipad just for this app.
    • I have two Seitz sets, one ancient (with the 3mm anvils) and one just old (with 4mm anvils) plus a collection of spare pushers of assorted vintage. Not one of them is marked with it's size. Something which I have found very irritating when I have been using the tool and not returning pushers to their correct place in the tray every time as it means that I have to get the calipers out and measure them. These were bought as sets and collectively I have over 100 pushers so it would seem highly unlikely (if not inconceivable) that they are all cheap knock offs, especially as they are old enough to pre-date the prevalence of the Chinese knock off industry (at least as applied to watch making tools). I therefore believe them to be original Seitz parts. And there is no numbering. The shape of the bottom of the pump pushers is the same as your photo. The only thing that may not be the same is that the slotted insert (looks like a screw but is in fact a bayonet) should be brass. Yours looks the same colour as the steel but that could just be the lighting.
    • The original database is available on iOS devices here: https://apps.apple.com/fi/app/ranfft-watch-movements-archive/id6502008939
×
×
  • Create New...