The Talking Machine Forum — For All Antique Phonographs & Recordings

EdisonWizard wrote:Here's a vid!

Thanks for the video. The mandrel should spin more freely than that after removing your hand - but you're close! The belt pulley screw looks like it is protruding a bit. That screw should be at or below where the belt rides between the pulley shoulders. There should be a small flat washer on the mandrel shaft between the belt pulley and the casting boss/mandrel shaft bearing. Make sure that the spacing between the belt pulley and boss is not too tight or too loose. Also be mindful of the screw that tightens the mandrel bearing in the casting boss. Occasionally the casting boss screw, if too tight, can affect the position (and therefore rotation) of the mandrel shaft within that bearing.

Doug

EdisonWizard wrote:Oh and that wire mentioned earlier is in place

If the wire is present, it must also be secured at both ends. If it is not, the governor spring assembly will move back and forth along the governor shaft. Grab the small end of the governor spring assembly and see if it slides back and forth on the governor shaft. If it does, then one end of the wire is not secured. With a wire that is correctly connected to both the collar that is secured to the governor shaft in the middle of the governor spring assembly and the collar at the small end of the assembly, you do not need a set screw to secure the assembly. The wire acts as a stabilizer in place of that set screw and allows for smoother governor operation.

hearsedriver wrote:Loosen the set screws on the top belt pulley and 2/4 gear. Remove the mandrel. With the pulley and gear off, dress the mandrel shaft or bushing to where the mandrel shaft goes all the way in and touches the mandrel shaft bearing. When the mandrel is spinning freely, re-install the belt pulley and 2/4 gear. Slide the pulley to the right as far as it will go while pushing the mandrel to the left.Leave a few thousandths of end play between the pulley and mandrel. Adjust the 2/4 gear to engage properly in both positions and tighten the set screw. As Tom pointed out, replace that missing governor set screw and adjust the end play in the governor shaft.

Maybe I could pull a set screw from one of myGEMs. The governor doesn't move or anything. Should that colar I pointed at earlier be against the disk?

EdisonWizard wrote:

hearsedriver wrote:Loosen the set screws on the top belt pulley and 2/4 gear. Remove the mandrel. With the pulley and gear off, dress the mandrel shaft or bushing to where the mandrel shaft goes all the way in and touches the mandrel shaft bearing. When the mandrel is spinning freely, re-install the belt pulley and 2/4 gear. Slide the pulley to the right as far as it will go while pushing the mandrel to the left.Leave a few thousandths of end play between the pulley and mandrel. Adjust the 2/4 gear to engage properly in both positions and tighten the set screw. As Tom pointed out, replace that missing governor set screw and adjust the end play in the governor shaft.

Maybe I could pull a set screw from one of myGEMs. The governor doesn't move or anything. Should that colar I pointed at earlier be against the disk?

By the way, I just checked 2 other machines and they are all missing the screw going on the right which is im guess what y'all are talking about. They all run perfect...now I'm confused at which one y'all mean.

My fireside for reference.

Standard F for reference

CDBPDX wrote:

EdisonWizard wrote:Oh and that wire mentioned earlier is in place

If the wire is present, it must also be secured at both ends. If it is not, the governor spring assembly will move back and forth along the governor shaft. Grab the small end of the governor spring assembly and see if it slides back and forth on the governor shaft. If it does, then one end of the wire is not secured. With a wire that is correctly connected to both the collar that is secured to the governor shaft in the middle of the governor spring assembly and the collar at the small end of the assembly, you do not need a set screw to secure the assembly. The wire acts as a stabilizer in place of that set screw and allows for smoother governor operation.

Thanks for all the info! Learned something new today but it looks secured and straight.

Well it went from second pic to first pic. Let's see what happens!

Can you post a picture of the mandrel shaft that is closer to the mandrel where it goes into the bronze bearing.. Thanks Tom B

Forget the governor issue for now. It may be juts fine. Once you get the mandrel spinning freely, the top gears adjusted and lubricated, you might need to adjust the feed-screw half nut. One problem at a time. You are getting very close! By the way, it could juts be the pictures but, it looks like the bottom drive gears are pretty dry. Be sure they are lubricated properly.