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Post by a1parrothead on Sept 25, 2012 20:41:33 GMT -5
Hello,
I have an Edison Standard Model B. It is running fast (172 RPMs measured with a digital device). I have adjusted the speed control to its maximum throws. It appears it is not making contact to slow it down. I see 2 tiny felt type pads. They do not appear too worn, but perhaps they are?
Is there another adjustment I can make? A part I can buy and if so what and where?
I did read on the internet about adjusting the governor. But before attempting that it would seem logical to make sure I cannot fix/adjust the actual speed control that does not even seem to be touching.
Thanks, Jeff
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Post by maroongem on Sept 26, 2012 17:11:33 GMT -5
Hi Jeff and welcome to the board!
With the motorboard up and the machine on, do the three governor weights look like they are pulling away on their springs from the governor shaft and the governor disc moving toward the two felt pads?
With the brake on, try and carefully pull on one of the weights and see if the collar that the weight springs are attached to slides freely. If there is any rust on the shaft, this may be inhibiting that collar from sliding and not allowing the governor disc to reach the pads.
A note of caution! If you have to remove the governor assembly for cleaning, make sure the mainspring is completely wound down, or the motor gears could be damaged by the runaway gear train.
I forgot to mention, the larger collar on the left is the moveable one and the smaller one on the right is fixed to the shaft by a small set screw. Make sure that screw is tight or the whole assembly will slide and this too could be your problem.
Bill
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Post by adamsedison on Mar 27, 2017 20:00:38 GMT -5
Hello,
I have the same issue as stated by a1parrothead, In my case the the governor shaft is fixed and is tight on one end and the governor disk on the left side moves freely back and forth. I have checked my governor springs and they have a slight curve to them. There is not rust on the governor shaft the only issue is that the felt pads on the U part that is the speed control does not come into contact with the spinning governor after fully turning the speed control thumbscrew to extract or retract the ensemble. I have tried moving the governor up or down the shaft to different positions to no avail. Please let me know if you have any hints as to what this issue could be.
Thank you,
Adam
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Post by lucius1958 on Mar 28, 2017 4:13:06 GMT -5
Hello, I have an Edison Standard Model B. It is running fast (172 RPMs measured with a digital device). I have adjusted the speed control to its maximum throws. It appears it is not making contact to slow it down. I see 2 tiny felt type pads. They do not appear too worn, but perhaps they are? Is there another adjustment I can make? A part I can buy and if so what and where? I did read on the internet about adjusting the governor. But before attempting that it would seem logical to make sure I cannot fix/adjust the actual speed control that does not even seem to be touching. Thanks, Jeff I would second maroongem's advice. Check how far the felt is protruding from the yoke; also, try adjusting the governor bearings to move the disc closer to the yoke (the same cautions as above apply here). BillS |
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Post by lucius1958 on Mar 28, 2017 4:20:20 GMT -5
Hello, I have the same issue as stated by a1parrothead, In my case the the governor shaft is fixed and is tight on one end and the governor disk on the left side moves freely back and forth. I have checked my governor springs and they have a slight curve to them. There is not rust on the governor shaft the only issue is that the felt pads on the U part that is the speed control does not come into contact with the spinning governor after fully turning the speed control thumbscrew to extract or retract the ensemble. I have tried moving the governor up or down the shaft to different positions to no avail. Please let me know if you have any hints as to what this issue could be. Thank you, Adam Now, by "moving the governor", do you mean adjusting the bearings, or loosening the "fixed" end of the governor, and moving the assembly closer to the pads? BillS |
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Post by adamsedison on Mar 28, 2017 19:06:27 GMT -5
Hi Bill S.,
Thanks for your response. By moving the governor I mean loosening up the fixed end and moving the whole assembly closer to the pads. I tried left and right and it does not seem to come in contact with the pads, even after having the thumbscrew that controls the pads turned all the way to the right which would than slow down the governor. Another interesting issue I came across is that while having the speed now technically "uncontrollable" by the felt pads, I timed the speed of the reproducer, with the machine fully wound up, traveling from one circular ring to the other at the back rod to be just under 1 minute, when in a perfect speed (according to the Edison directions) should BE 1 minute. Could this be an issue of the main motor spring all together? is the phonograph too slow and therefore the governor does not fully extract enough to hit the pads? From what I have seen, the governor weights expand quite a lot when the phonograph is wound up almost making contact with the cabinet wall.
Thank you,
Adam
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Post by lucius1958 on Mar 29, 2017 3:34:32 GMT -5
Hi Bill S., Thanks for your response. By moving the governor I mean loosening up the fixed end and moving the whole assembly closer to the pads. I tried left and right and it does not seem to come in contact with the pads, even after having the thumbscrew that controls the pads turned all the way to the right which would than slow down the governor. Another interesting issue I came across is that while having the speed now technically "uncontrollable" by the felt pads, I timed the speed of the reproducer, with the machine fully wound up, traveling from one circular ring to the other at the back rod to be just under 1 minute, when in a perfect speed (according to the Edison directions) should BE 1 minute. Could this be an issue of the main motor spring all together? is the phonograph too slow and therefore the governor does not fully extract enough to hit the pads? From what I have seen, the governor weights expand quite a lot when the phonograph is wound up almost making contact with the cabinet wall. Thank you, Adam If it takes less than one minute between the rings, it is running fast, and the mainspring is not an issue. The most likely explanation for the disc not meeting the pads is that the governor springs are too strong. Have they been replaced at any time? BillS |
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