Lube for transport - need advice

Ecaroh · 8th August 2008, 08:05 PM

Photos attached of a Philips CDM12.1 mechanism, now replaced with a new VAM1202.

Have seen a variety of suggestions on where to lube and what to use, some using terms I'm not sure of. (E.g., what exactly are the "rails" -- I only seem to detect one rail.)

Places I'm wondering about for lube are marked.

People say oil, but it seems at least on gears it would need to be rather heavy.... Perhaps a light grease not prone to turning into solid gunk?

Many thanks,
Steve

Zen Mod · 8th August 2008, 09:06 PM

for gears and side slider - vaseline (plain one , from local drugstore)

for metal rail - light oil , same as for sewing machine

Mooly · 9th August 2008, 01:46 PM

Hi,
There is only one sure way to do these and that is too fully dismantle. If you are at all unsure don't attempt. It's not difficult but it is fiddly in parts, however in my experience it is the ONLY way to get a lasting job.
You have to remove the large gear carefully -- wash it in iso etc and clean all gunge from the teeth with a piece of stiff card etc. Clean centre hole and metal spindle it fits on. I always remove the metal rail the pickup runs on and clean all old grease from the pickup and also remove the rack gear on the pickup and wash/clean.
Remove sled motor and clean the worm gear carefully.
As to what grease, it has to be compatible with plastic. I always used a special metal/plastics grease made by Electrolube. Vaseline sounds a bit heavy to me. Apply very little to the gears and a give a thin smear on the metal rail. Also the "slider" opposite.
The old grease dosn't just go hard, it seems to crystalise into little hard grains that can cause the gears to jam and the player to skip.
If you try it, be careful and don't smear the lens with grease, it's easily done. The rail is held by little plastic wedges that slide in on top of the rail at the ends. You are best with an old pickup to practise on really.
Good luck and don't break it

rabbitz · 9th August 2008, 05:23 PM

Molykote EM-30L if you can find it in small quantities. Mentioned in a lot of CD service manuals.

tvi · 9th August 2008, 07:19 PM

Super-lube has worked for me in most applications includig cd mechanisms.

Regards
James

Mooly · 10th August 2008, 06:19 AM

WWW.CPC.CO.UK Enter part number spg35sl

Calamaro · 13th August 2008, 09:41 PM

Try Teflon grease (normally used for bikes).

8th August 2008, 09:06 PM	#2
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	for gears and side slider - vaseline (plain one , from local drugstore) for metal rail - light oil , same as for sewing machine __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb

9th August 2008, 07:19 PM	#5
tvi diyAudio Member Join Date: Apr 2001 Location: Moonee Ponds, Vic, Australia	Super-lube has worked for me in most applications includig cd mechanisms. Regards James __________________ The border between the Real and the unreal is not fixed, but just marks the last place where rival gangs of shamans fought each other to a standstill. Robert Anton Wilson

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9th August 2008, 01:46 PM	#3
Mooly diyAudio Member Join Date: Sep 2007	Hi, There is only one sure way to do these and that is too fully dismantle. If you are at all unsure don't attempt. It's not difficult but it is fiddly in parts, however in my experience it is the ONLY way to get a lasting job. You have to remove the large gear carefully -- wash it in iso etc and clean all gunge from the teeth with a piece of stiff card etc. Clean centre hole and metal spindle it fits on. I always remove the metal rail the pickup runs on and clean all old grease from the pickup and also remove the rack gear on the pickup and wash/clean. Remove sled motor and clean the worm gear carefully. As to what grease, it has to be compatible with plastic. I always used a special metal/plastics grease made by Electrolube. Vaseline sounds a bit heavy to me. Apply very little to the gears and a give a thin smear on the metal rail. Also the "slider" opposite. The old grease dosn't just go hard, it seems to crystalise into little hard grains that can cause the gears to jam and the player to skip. If you try it, be careful and don't smear the lens with grease, it's easily done. The rail is held by little plastic wedges that slide in on top of the rail at the ends. You are best with an old pickup to practise on really. Good luck and don't break it

9th August 2008, 05:23 PM	#4
rabbitz diyAudio Member Join Date: Jul 2003 Location: Newcastle, Australia	Molykote EM-30L if you can find it in small quantities. Mentioned in a lot of CD service manuals.

10th August 2008, 06:19 AM	#6
Mooly diyAudio Member Join Date: Sep 2007	WWW.CPC.CO.UK Enter part number spg35sl

13th August 2008, 09:41 PM	#7
Calamaro diyAudio Member Join Date: Mar 2008	Try Teflon grease (normally used for bikes).

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