Re: [Phono-L] Amberola D-X flutter troubleshooting
Hi Bill ~ Short of securing a dial or digital micrometer to the motor frame, you can devise a quick and dirty but effective way to check for out-of-round, by securing one end of a stretched out paper clip or stiff wire under an existing screw, and bending it so the other end nearly touches the edge of the pulley or other component you suspect of being out-of-round or on a bent shaft. Run the motor and carefully observe the distance (between the end of the wire and the pulley) opening up or closing in, or remaining steady. You can also position the wire so it points directly at the end of the pulley shaft, and then run the motor to check for a bent shaft. Positioning the wire at various points along the shaft (to the extent that the shaft is exposed), can also reveal exactly where such shaft deviates from true. Andy Baron Santa Fe On Jun 6, 2011, at 10:21 AM, William Taney wrote: Got a question. I have a Amberola D-X that has a flutter or water sound when playing. I have made it a new belt, it is clean lubricated and the motor runs strong. The only thing I have to suspect is the mandrel pulley. Do those swell or become deformed. The mandrel pulley is pot metal and appears to have flakes, I cleaned it but am wondering if it is out of round? If you watch the motor run the tensioner moves in and out more than I would expect leading me to believe something is out of round or a shaft is bent... Any advice? Bill ___ Phono-L mailing list http://phono-l.oldcrank.org ___ Phono-L mailing list http://phono-l.oldcrank.org
Re: [Phono-L] Amberola D-X flutter troubleshooting
Bill, I ran into a problem like that with my Edison Home. It turned out the governor had too much play. Also, lubricate the tensioner. That seems to be a part that gets neglected. Good luck, Harvey Kravitz From: William Taney b...@taney.com To: Antique Phonograph List phono-l@oldcrank.org; phonol...@yahoogroups.com Sent: Mon, June 6, 2011 9:21:10 AM Subject: [Phono-L] Amberola D-X flutter troubleshooting Got a question. I have a Amberola D-X that has a flutter or water sound when playing. I have made it a new belt, it is clean lubricated and the motor runs strong. The only thing I have to suspect is the mandrel pulley. Do those swell or become deformed. The mandrel pulley is pot metal and appears to have flakes, I cleaned it but am wondering if it is out of round? If you watch the motor run the tensioner moves in and out more than I would expect leading me to believe something is out of round or a shaft is bent... Any advice? Bill ___ Phono-L mailing list http://phono-l.oldcrank.org ___ Phono-L mailing list http://phono-l.oldcrank.org
Re: [Phono-L] Amberola D-X flutter troubleshooting
If you find that the pulley is not out of round just replace the felt on the governor stop. Don't oil it. Use real wool F-1 or F-2 felt and not fabric store fake polyester felt. On 06/06/2011 12:06 PM, Andrew Baron wrote: Hi Bill ~ Short of securing a dial or digital micrometer to the motor frame, you can devise a quick and dirty but effective way to check for out-of-round, by securing one end of a stretched out paper clip or stiff wire under an existing screw, and bending it so the other end nearly touches the edge of the pulley or other component you suspect of being out-of-round or on a bent shaft. Run the motor and carefully observe the distance (between the end of the wire and the pulley) opening up or closing in, or remaining steady. You can also position the wire so it points directly at the end of the pulley shaft, and then run the motor to check for a bent shaft. Positioning the wire at various points along the shaft (to the extent that the shaft is exposed), can also reveal exactly where such shaft deviates from true. Andy Baron Santa Fe On Jun 6, 2011, at 10:21 AM, William Taney wrote: Got a question. I have a Amberola D-X that has a flutter or water sound when playing. I have made it a new belt, it is clean lubricated and the motor runs strong. The only thing I have to suspect is the mandrel pulley. Do those swell or become deformed. The mandrel pulley is pot metal and appears to have flakes, I cleaned it but am wondering if it is out of round? If you watch the motor run the tensioner moves in and out more than I would expect leading me to believe something is out of round or a shaft is bent... Any advice? Bill ___ Phono-L mailing list http://phono-l.oldcrank.org ___ Phono-L mailing list http://phono-l.oldcrank.org ___ Phono-L mailing list http://phono-l.oldcrank.org
