Jump to content

Minute hand problems....

mcass

By mcass
in Watch Repairs Help & Advice

 Share

Recommended Posts

mcass WRT Addict

mcass

Posted
Posted

This is a project I started a couple of years ago and need to finish it once and for all. The second hand runs fine but the minute hand seems to stop after about 10 minutes. I thought maybe it had to do with the lever not sitting problem and have tried tightening it down but still can’t seem to resolve. I am continuously having to reset the watch after every ten minutes that it runs and then stops. Any suggestions?422e570a91075b90b612c7f05f9ea7d9.png

 

 

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
jdrichard Distinguished Member

jdrichard

Posted
Posted

This is a project I started a couple of years ago and need to finish it once and for all. The second hand runs fine but the minute hand seems to stop after about 10 minutes. I thought maybe it had to do with the lever not sitting problem and have tried tightening it down but still can’t seem to resolve. I am continuously having to reset the watch after every ten minutes that it runs and then stops. Any suggestions?422e570a91075b90b612c7f05f9ea7d9.png&key=9349ffada3d92c029c5b5e616b418dcdd154f8b147e17ec777462f585cd2f7ba
 
 
Sent from my iPhone using Tapatalk


Check for dirt in the gears. As well, make sure that the hands are free and not touching each other or the face


Sent from my iPhone using Tapatalk Pro
  • Like 1
Link to comment
Share on other sites
TimFitz WRT Addict

TimFitz

Posted
Posted

Please give us more information. What exactly have you done so far? Tell us about the watch? Does the second hand stop when the minute hand does, or does it keep ticking? We need more to go on>

I'm sure when we put our collected heads together, with the help of everyone on the forum, we will get your problem solved.

  • Like 1
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted
Please give us more information. What exactly have you done so far? Tell us about the watch? Does the second hand stop when the minute hand does, or does it keep ticking? We need more to go on>
I'm sure when we put our collected heads together, with the help of everyone on the forum, we will get your problem solved.



I had completely tore into it about a year and a half ago, cleaned everything and reassembled. Prior to that, it hadn’t run in over 50 years. After reassembling that time, I thought I had everything operating properly. Put the project aside while I waited for a new crystal to arrive. After a month or so, i sat down to place the crystal and found that one to shallow to clear the pinion. So I ordered a second crystal. Went to install it when it arrived and broke it....lol. Ordered a 3rd crystal a few months ago and before attempting to install it, I noticed that while the second hand was moving, the minute hands was not. So I disassembled it a second time, cleaned everything, and reassembled. Still the second hand would run but not the minute hand. At the time, I had noticed that the lever on the side that you pull to set the time, felt a little loose. I opened it back up and noticed that when I would pull the lever, the screw holding it would back up ever so slightly with each pull. I tightened the screw back down and reassembled. Again set the watch, pushed the lever back in, and now the minute hand runs for a bout 10 minutes and then stops, while the second hand continues without issue. It is a family heirloom that I need to finish so that I can finally get it returned.


Sent from my iPhone using Tapatalk
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Check for dirt in the gears. As well, make sure that the hands are free and not touching each other or the face


Sent from my iPhone using Tapatalk Pro

Hands are definitely clear. I suppose could try another full tear down and clean....hmmm


Sent from my iPhone using Tapatalk
Link to comment
Share on other sites
jdrichard Distinguished Member

jdrichard

Posted
Posted

Hands are definitely clear. I suppose could try another full tear down and clean....hmmm


Sent from my iPhone using Tapatalk

Gear Dirt? Is the balance amplitude good right up to when in stops? As well, is there a bent tooth on the mainspring barrel


Sent from my iPhone using Tapatalk Pro
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Gear Dirt? Is the balance amplitude good right up to when in stops? As well, is there a bent tooth on the mainspring barrel


Sent from my iPhone using Tapatalk Pro

The balance appears fine....incredibly smooth and never stops or slows


Sent from my iPhone using Tapatalk
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Ok I just noticed something I hadn’t before. When it would stop, I would pull the lever and reset the hands. Just a few minutes ago it had stopped again and I watched it for awhile to see if it might start on its own which it didn’t. So this time I pulled the lever and then pushed it right back in without setting it. As soon as I pushed the lever in the minute hand began to move again. So that lever is definitely part of the issue but I’m not sure why exactly.


Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
clockboy Distinguished Member

clockboy

Posted
Posted

Looking at your vids it is nothing to do with the going train all looks fine. The fault will be on the keyless side, loose canon pinion or a intermediate wheel installed upside down or a pinion that is not tight with it's wheel. 

  • Like 1
Link to comment
Share on other sites
oldhippy Distinguished Member

oldhippy

Posted
Posted

 As clock boy has said its the keyless side. Remove the cannon pinion and just run it and see if it stopes. Add parts one by one to test until complete. Add hands without the dial. Run a complete test out of the case. When you are satisfied case up the movement less the dial and test. Working this way you should be able to find what is stopping the watch. The cannon pinion needs to be just so, to lose hands won’t carry, to tight will cause the movement to stop.  

  • Like 2
Link to comment
Share on other sites
sstakoff WRT Addict

sstakoff

Posted
Posted

Safe to assume the hour hand is not running either given that it is ultimately driven by the canon pinion->minute Wheel->hour wheel. In addition to the keyless work, this could be a basic issue with the motion work. Could be a broken tooth on the canon pinion, minute wheel or hour wheel. Could simply be a loose canon pinion. When setting the hands, do they move extremely freely -- i.e. too loose, or can you feel some resistance caused by the friction fit of the canon pinion to the center wheel post??? What lubrication did you use on the post prior to installing the canon pinion? Are you 100% certain that the canon pinion is set fully onto the post?

Removing the dial is critical. Perhaps your keyless work is not installed correctly (e.g. yoke or yoke spring) and the sliding pinion (clutch) is engaging the intermediate wheel when it should not be - this would stop the minute and hour hands, but not the second hand.

 

Good luck!

  • Like 1
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Ok so here is another video I just shot so that I could confirm that the drive train is operating properly and the there was transfer through all components which there is. Correct me if I’m wrong but this would as Oldhippy suggested, point me towards the canon pinion. I’m going to flip the movement over and shoot another video to see if I can confirm whether or not I have any slippage there.....




Sent from my iPhone using Tapatalk
Link to comment
Share on other sites
sstakoff WRT Addict

sstakoff

Posted
Posted

Correct - your issue is certainly in the motion works given that the second hand continues to operate. So your first stop should be the canon pinion. See my previous post for other considerations. You're getting close!!!

  • Like 1
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Wait a minute, Center arbor drives canon pinion, canon pinion drives minute wheel, minute wheel drives hour wheel, therefore canon pinion should rotate one revolution per minute.....


Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
sstakoff WRT Addict

sstakoff

Posted
Posted

Your connections are correct, but math is not :).  Center wheel and canon pinion rotate together. Canon pinion drives minute wheel which drives hour wheel. But the minute hand is attached to the canon pinion. The minute hand (and hence the canon pinion) make 1 rotation per hour!  The fourth wheel (with the seconds hand attached) will rotate once per minute

  • Like 2
Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

Ok....I knew I was off somewhere....ugggh....well during all that I removed the canon pinion, shot it across the room, crawled around, swept the floor with both broom and magnet, found canon pinion, demagnetized canon pinion, screwed my head back on straight, and now ready to proceed forward ....lol


Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
mcass WRT Addict

mcass

Posted
  • Author
Posted

I went ahead and tightened the canon pinion slightly to ensure a good snug fit over the arbor. I’ll let it run for awhile now and see what that gets me. If that doesn’t slip, the only other possibility would be hand slippage I think.


Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Neverenoughwatches
      Without Our Forum

      By Neverenoughwatches · Posted

      Its 4 o'clock in the morning here in the Uk, i cant sleep, i dont sleep, not much ever really. My brain never shuts off to rest, I'm just a constant thinker, i have to be very tired to be able to sleep,  i guess eventually it will be my undoing and my health will suffer because of it I'm sure. But while I'm here i want to get as much out of life as i can, and give as much as i can, to help,maybe to make a difference to someone's life if that is within my capability,recent events have made that need even more clear to me. I'm not sure where I'm going with this or why i bring it up , or if its relevant to want i want to talk about its just in my head right now. What i do want to talk about is something thats been on my mind for ages. I like to be prepared,  I'm not fond of surprises because surprises take control away and i am a bit of a control freak at times. This forum, Our Forum if i can call it that, is here because of two reasons. The guy that created it and keeps it funded and the people that joined it.  Without either, it would not exist, and lets face it one day it won't ( I'm a realist and i talk about things others dont or who are afraid to in other words folk that dont particularly prepare for the inevitable). How many of us visit here regularly ?  How many among us almost depend on the forum as a way of socialising because they are stuck at home and how many of us has it become part of a daily routine to check in and see if they can offer advice or get help with something they are working on or just to have a chat and engage in some banter. The members here are in the thousands and thousands have disappeared over the years many had just a fleeting visit. But there are a good few of us that know each other quite well and visit regularly. I dont know about you but i wouldnt want to lose that communication with you all, in all honesty it has become an important part of that side of my life and helps to feed my passion for all things watches. Some of you may think differently and thats ok, some of may stop and think # what would i do " Without Our Forum " # 
    • Neverenoughwatches
      Gamblin Gamsol for cleaning?

      By Neverenoughwatches · Posted

      Naptha appears to be a general name and its content can be varied depending upon what it's specific use is. Lighter fluid as an example can be light or heavier also with other ingredients to help it burn. Try sesrching for benzine ( as opposed to benzene which is linked to causing health issues ) . There are other fluids such as ethanol that you could try and also methylated sprirts, mostly ethanol with a small percentage of methanol added. Experiment with any new chemical to see how quickly schellac dissolves in its presence. I have tried a few things but hexane is not one of them, i understand it does evaporate very quickly.  Be sure sure to check out any safety data on chemicals you try. Toxicity of fumes and flash point information, ultrasonic machines can heat up fluids even without a heater function. And of course always ask here for personal opinions when trying a new substance. 
    • GuyMontag
      What tools does ebay have to offer this week.

      By GuyMontag · Posted

      I have that set and really like it. I prefer that crystal holder over the one that came with my Bergeon claw tool and any time I use the claw I use this one instead of the Bergeon one, just an additional bonus with this tool.
    • GuyMontag
      Movement inserted from crytal side

      By GuyMontag · Posted

      Is the Roamer not a split stem? I'm confused on your how your case is put together. If it is a front loader where is it you are putting the case screws? I love me some Roamer, do you have any photos?
    • ManSkirtBrew
      1972 Bulova President "E" Sea King 11ACACB movement

      By ManSkirtBrew · Posted

      Oh nice. I have a similar wedge style stump for my staking tool, so I'll give that a shot. Thanks!
×
×
  • Create New...