truetone r\changer slow cold start, but fine warm?

Electrically amplified phonographs or radio/phonographs and related components (approx. 1928-1990).



Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

truetone r\changer slow cold start, but fine warm?

by deash » Tue Apr 05, 2011 4:16 am

I have a truetone model 4dc 5474b console that I'm restoring and the changer has trouble turning/dropping LP/moving tone arm over when it is cold or just turned on after it has run for 1/2 hour it's fine for at least half a day....I have had the r/c out of the cabinet and lubed everything that moved with wd-40 not really knowing what to use as a lubericant. Would really like tom fix this....I have other problems with this console but new here and taking one prob at a time.
DSCF5523.jpg
DSCF5523.jpg (244.79 KiB) Viewed 1819 times
DSCF5525.jpg
DSCF5525.jpg (233.52 KiB) Viewed 1819 times

User avatar

MattTech
Senior Member
Posts: 1461
Joined: Tue Apr 29, 2008 7:38 am
Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: truetone r\changer slow cold start, but fine warm?

by MattTech » Tue Apr 05, 2011 5:19 am

The motor needs to be dissasembled, flushed, re-oiled with proper oil.
The Idler wheel needs replacing... it's probably hardened or glazed from age/wear. Available online.
WD-40 is not a fix-all..... I wish people would stop using that crap.
Last week we had a DVD player loaded with it... total ruin.
The Internet is a marvelous thing, however it's not a good substitute for actually being there.


Ron Rich
Forum Moderator
Posts: 8195
Joined: Sun May 06, 2007 11:31 pm
Location: Millbrae (San Francisco area)CA, USA

Re: truetone r\changer slow cold start, but fine warm?

by Ron Rich » Tue Apr 05, 2011 5:22 am

Hi Deash,
I know absolutely nothing about this item, but I do know that, IMHO, "WD-40" is NOT a good "lubricant".
I would suggest washing all "bearing surfaces" with a good "plastic safe, safety solvent", and using a SAE $20 wt ND oil.
Ron Rich


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Tue Apr 05, 2011 4:10 pm

Thanks Gentlemen for the advice, how do you go about flushing the motor?? and do you have any advice about disassembly/reassembly of the motor for someone new to this?? any help would be greatly appreciated. I don't think my wheel looks glazed or warped/cracked, I removed it and cleaned it after getting some wd-40 on it and it does'nt look bad??


Ron Rich
Forum Moderator
Posts: 8195
Joined: Sun May 06, 2007 11:31 pm
Location: Millbrae (San Francisco area)CA, USA

Re: truetone r\changer slow cold start, but fine warm?

by Ron Rich » Tue Apr 05, 2011 5:38 pm

Deash,
That would depend on the motor construction--post a pix of it, and I'll attempt to answer--or hopefully someone who knows that motor will "chime in"---.
Ron Rich

User avatar

MattTech
Senior Member
Posts: 1461
Joined: Tue Apr 29, 2008 7:38 am
Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: truetone r\changer slow cold start, but fine warm?

by MattTech » Tue Apr 05, 2011 5:53 pm

I soak the upper-lower bearing assemblies in thinner overnight.
then dry them out..... over a heater for another day.
Re-oil with light motor oil in the felt pads, plus a drop in each bearing.
Clean the motor shaft, reinstall.
After back in the changer, lightly tap the shaft as its spinning to center the bearings.
The Internet is a marvelous thing, however it's not a good substitute for actually being there.


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Wed Apr 06, 2011 11:06 pm

Finally found time to post pic's of r/c. after posting pic's I'm going to remove motor from r/c base and I'm sure I'll have more question's
I know a little about this console...1963 model....Wells-Gardner electronics...sold at Western Auto stores...cabinet was a light maple color before a refinished it black.
Attachments
DSCF5724.jpg
DSCF5724.jpg (213.9 KiB) Viewed 1794 times
DSCF5723.jpg
DSCF5723.jpg (231.56 KiB) Viewed 1794 times
DSCF5722.jpg
DSCF5722.jpg (240.57 KiB) Viewed 1794 times
DSCF5721.jpg
DSCF5721.jpg (216.65 KiB) Viewed 1794 times


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Wed Apr 06, 2011 11:24 pm

o.k. I've removed the motor now how do I disassemble??

User avatar

MattTech
Senior Member
Posts: 1461
Joined: Tue Apr 29, 2008 7:38 am
Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: truetone r\changer slow cold start, but fine warm?

by MattTech » Thu Apr 07, 2011 1:59 am

deash wrote:o.k. I've removed the motor now how do I disassemble??


You actually want me to tell you how to use a suitable hand tool to remove nuts? :shock:
The Internet is a marvelous thing, however it's not a good substitute for actually being there.


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Thu Apr 07, 2011 3:32 am

Matt, that's not what I was after....would I be correct in removing the 2 nuts on the diamond shaped thing....I have never opened one of these up and have no idea what's inside other than very old oil...I have a full set of sockets.


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Thu Apr 07, 2011 4:09 am

opened what I guess is the bottom bearings and no oil? see photo.
Attachments
DSCF5730.jpg
DSCF5730.jpg (184.32 KiB) Viewed 1781 times

User avatar

MattTech
Senior Member
Posts: 1461
Joined: Tue Apr 29, 2008 7:38 am
Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: truetone r\changer slow cold start, but fine warm?

by MattTech » Thu Apr 07, 2011 5:55 am

Ya take that bottom bearing, the top bearing with rotor, and soak it overnight in thinner.
Next day dry it all out and soak the bearing felts with light oil.
The Internet is a marvelous thing, however it's not a good substitute for actually being there.


Topic author
deash
Regular Member
Posts: 68
Joined: Tue Apr 05, 2011 4:00 am

Re: truetone r\changer slow cold start, but fine warm?

by deash » Thu Apr 07, 2011 3:44 pm

Thanks Matt....I'm doing that.


Ron Rich
Forum Moderator
Posts: 8195
Joined: Sun May 06, 2007 11:31 pm
Location: Millbrae (San Francisco area)CA, USA

Re: truetone r\changer slow cold start, but fine warm?

by Ron Rich » Thu Apr 07, 2011 6:27 pm

Deash,
Was / is there a steel ball in the center of that shaft--it appears so from the pix ? If so, it should be removed, and the hole cleaned, and re-lubed before you reassemble the motor. Ron Rich

User avatar

MattTech
Senior Member
Posts: 1461
Joined: Tue Apr 29, 2008 7:38 am
Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: truetone r\changer slow cold start, but fine warm?

by MattTech » Thu Apr 07, 2011 7:13 pm

Ron Rich wrote:Deash,
Was / is there a steel ball in the center of that shaft--it appears so from the pix ? If so, it should be removed, and the hole cleaned, and re-lubed before you reassemble the motor. Ron Rich


No Ron, those V-M style motors (It's actually a Voice-of-Music record changer) have a rounded tip on the lower shaft that rides on a tempered steel plate inside the bearing cup.

A good soaking in thinner to clear the old lube out is needed on these motors.
Once re-assembled and re-oiled, a slight tap on the shaft to center the bearings is needed.
The upper shaft has a spring wound on it for the 78 speed, (see photos) so it can't be easily removed from the upper bearing..... I just soak the bearing & rotor as a unit.
The Internet is a marvelous thing, however it's not a good substitute for actually being there.

Who is online

Users browsing this forum: No registered users and 1 guest

It is currently Thu Oct 06, 2016 8:25 pm