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 Post subject: Philco M24 Phono Repair
PostPosted: Feb Thu 01, 2018 3:57 am 
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Joined: Nov Sat 24, 2012 5:05 am
Posts: 103
I Have a Philco B-1350 with a built in M24 phonograph. I got the motor working, the idler wheel and belt changed okay but the grease was so old and hard I had to clean the cam gear and all the pivoting and rotating parts, the grease was hard and solid. I carefully took the bridge assembly of the bottom of the player to get at the cam gear, Got it and everything else clean and re-greased, now the reassembly, Is there a certain position the cam gear needs to be in to get full rotation and correct operation thru a playing cycle?. I have reassembled numerous times and always wind up with cam gear rotating about 7/8 around then stops when it hits the return lever roller. It almost looks like this roller should be inside the cam gear and the cam gear index pin rides on the outside of the cam gear. Any help would be appreciated, I have some info on adjustments but no info on reassembly. I cannot get it together to go thru a cycle..Thanks.

Charles


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 Post subject: Re: Philco M24 Phono Repair
PostPosted: Feb Fri 02, 2018 2:23 am 
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Joined: Jan Mon 04, 2010 2:52 am
Posts: 2406
https://antiqueradioschematics.org/philco.htm

I might suggest purchasing a Philco M24 factory service manual. See the above link. A few weeks ago, one ARF member did manage to tear down and reassemble a Philco M22 changer so as to clean and grease the mechanisms, but he used a Philco M22 factory service manual to do it (and not a Sam's).

A far easier way would have been to simply dip a hobby brush into some rubbing alcohol, and swab away the old hardened grease. Afterwards, using the same brush, one would apply some Phonolube to the bristles, and apply the lube to the affected areas.


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 Post subject: Re: Philco M24 Phono Repair
PostPosted: Feb Fri 02, 2018 3:41 am 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 3987
Location: Mountains of Mourne. Ireland.
How's your eyesight... :)

https://i.ebayimg.com/images/g/jZ4AAOSw ... -l1600.jpg
https://i.ebayimg.com/images/g/r0IAAOSw ... -l1600.jpg
https://i.ebayimg.com/images/g/KL4AAOSw ... -l1600.jpg

Greg.


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 Post subject: Re: Philco M24 Phono Repair
PostPosted: Feb Fri 02, 2018 4:17 am 
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Joined: Nov Sat 24, 2012 5:05 am
Posts: 103
Thanks for the information. I have couple of M22's which are single speed(78RPM). The M24 has 3 speeds and 2 needles in the cartridge. There is suppose to be a service manual PR2178 that I am trying to locate but with little luck. Aah the enjoyment of the old radio hobby. Thanks again for the input, but I am trying to locate the PR2178 Service Manual.

Charles


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 Post subject: Re: Philco M24 Phono Repair
PostPosted: Feb Fri 02, 2018 6:44 am 
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Joined: Nov Wed 27, 2013 5:59 am
Posts: 486
Location: Metzger Oregon
I might have a photofact in my stash of paperwork, would that be of interest to you?


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 Post subject: Re: Philco M24 Phono Repair
PostPosted: Feb Fri 02, 2018 7:47 pm 
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Joined: Dec Tue 09, 2008 9:54 pm
Posts: 202
Location: Richmond, Virginia
I have am M26, which is also 3-speed. I used the M24 service manual, I believe. Mine does work but needs adjustment.
Message me with your email and I will send you what materials I have.


Dick


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