Spider27 Posted December 17, 2019 Posted December 17, 2019 My Rega RB 303 is dropping too fast when lever is down. I guess that I need to clean inside and apply new grease or oil. Does anyone know what grease or oil needs to be used? When I research internet, High Viscosity Grease to be used but not sure what and where to get exactly. Any guidance would be greatly appreciated. Thank you.
Full Range Posted December 17, 2019 Posted December 17, 2019 13 minutes ago, Spider27 said: My Rega RB 303 is dropping too fast when lever is down. I guess that I need to clean inside and apply new grease or oil. Does anyone know what grease or oil needs to be used? When I research internet, High Viscosity Grease to be used but not sure what and where to get exactly. Any guidance would be greatly appreciated. Thank you. If you are a Vinyl Engine member you can download the service manual https://www.vinylengine.com/library/rega/arm-cueing-lever.shtml
Spider27 Posted December 17, 2019 Author Posted December 17, 2019 2 minutes ago, Full Range said: If you are a Vinyl Engine member you can download the service manual https://www.vinylengine.com/library/rega/arm-cueing-lever.shtml Thank you. The manual says, "Re-grease using only Rega supplied lift/lower grease." I am particularly interested in finding out what and where to get this Rega supplied lift/lower grease. I could not find it anywhere on internet.
Full Range Posted December 17, 2019 Posted December 17, 2019 (edited) 25 minutes ago, Spider27 said: Thank you. The manual says, "Re-grease using only Rega supplied lift/lower grease." I am particularly interested in finding out what and where to get this Rega supplied lift/lower grease. I could not find it anywhere on internet. To me that has worked in the lubricants field The highest Viscosity is hard solid grease There are about 9 grades of grease ranging from semi fluid all the way up to solid I would suggest a common grease like bearing grease would be suitable Edited December 17, 2019 by Full Range 1
andrewinbriz Posted December 17, 2019 Posted December 17, 2019 I did a Project arm on a music hall table and used this stuff https://www.rcmodelaircraft.com.au/alpha-diff-oil-60cc-20000w-pa-cl20000 It is a few years, and can't remember the exact weight, but I think this was it, and it worked well ( and there's been no issues). Not my idea. When I was googling the repair, I came across using this diff oil. 1
EV Cali Posted December 17, 2019 Posted December 17, 2019 I recently re did my Technics SL1200 with 5,000 https://www.ebay.com.au/itm/RC-Silicone-Diff-Fluid-1k-500k-by-Team-Associated-HPI-Losi-PRC-Rovan-KM/362553660092?ssPageName=STRK%3AMEBIDX%3AIT&var=631701504763&_trksid=p2057872.m2749.l2649 But it still drops too quick and I am not sure what to go to next.
andrewinbriz Posted December 17, 2019 Posted December 17, 2019 If it drops too quickly you'd need thicker oil. The model aircraft shops have a wide range of viscosities.
Spider27 Posted December 17, 2019 Author Posted December 17, 2019 Thanks for suggestions. Those are silicone based oil.. And, not sure if oil is better than grease since manual says high viscosity grease. Is there any difference what to use between grease and oil if viscosity are similar?
Full Range Posted December 18, 2019 Posted December 18, 2019 14 minutes ago, Spider27 said: Thanks for suggestions. Those are silicone based oil.. And, not sure if oil is better than grease since manual says high viscosity grease. Is there any difference what to use between grease and oil if viscosity are similar? In layman’s terms Grease is oil with additives to make it thicker So if you use oil you can thicken it by adding grease If using grease you can thin it down by using oil
audiofeline Posted December 18, 2019 Posted December 18, 2019 I think that the word "Grease" is just terminology being used. These devices all used a thick oil (or runny grease). Most people now use a viscous silicon oil, like the above suggestions, which was not around in earlier decades. And remember (going off-topic here), that Olivia told us that Grease is not a word, it is the word. 1
Spider27 Posted December 18, 2019 Author Posted December 18, 2019 Thank you very much, guys. i will give a go with 20000 silicone oil as suggested.
Grumpy Posted December 18, 2019 Posted December 18, 2019 (edited) A few years ago l had the same problem with a Yamaha PF800 arm and used the recommended 300.000 rc car dif 'oil' (from a rc model car shop )- YEP ! 300.000 - looks too thick like silicone, but worked instanly and never had the problem since. oh ! and you only need a smear of it on the part that lifts and lowers the arm. Edited December 18, 2019 by Grumpy 2
Spider27 Posted December 18, 2019 Author Posted December 18, 2019 1 minute ago, Grumpy said: A few years ago l had the same problem with a Yamaha PF800 arm and used the recommended 300.000 rc car dif 'oil' (from a rc model car shop )- YEP ! 300.000 - looks too thick like silicone, but worked instanly and never had the problem since. That is insane viscosity level. Great to know that we can go extremely high viscosity and still works fine.
wartman Posted December 18, 2019 Posted December 18, 2019 I use 200,000 and 500,000 cst, and blend if required for different turntables. 1
Monkey_Relish Posted December 19, 2019 Posted December 19, 2019 300,000 cst is standard for Technics 1200 and similar turntables. I have done a SL-1400, SL-1700 and an SL-B20, and all drop nicely now. Just search for RC diff oil on eBay. Mr Relish 1
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