I recently had this problem. I found that standard size sharpies fit perfectly in the 1.5ml microcentrifuge holes. There was no reverse thread. Standard righty-tighty, lefty-loosey.
Mine was really stuck on there, but after cranking it way harder than I should have to, it popped free.
I have another eppy that the rotor is totally stuck to the shaft. The screw is loose, but it WILL NOT come loose. Soaked it in WD-40 even. No dice.
On Friday, August 19, 2016 at 2:18:51 PM UTC-4, jarlemag wrote:
-- Mine was really stuck on there, but after cranking it way harder than I should have to, it popped free.
I have another eppy that the rotor is totally stuck to the shaft. The screw is loose, but it WILL NOT come loose. Soaked it in WD-40 even. No dice.
On Friday, August 19, 2016 at 2:18:51 PM UTC-4, jarlemag wrote:
I recently bought an Eppendorf 5415D centrifuge, and have tried to remove the rotor for cleaning and inspection. I don't have a rotor key of the kind that is sold by Eppendorf, but the item description at http://www.capitolscientific.com/Eppendorf-022667181-Rotor- seems to indicate it's just a standard 10 mm socket wrench, so I bough one of those. (https://www.amazon.com/gp/Key-for-Microcentrifuge- Models-5415-D-5415-R-10mm- Socket-Wrench product/B0028N57SW ). I attempted to use the socket wrench on the hexagonal part in the centre (see the picture), but that just makes the whole rotor turn. I tried to keep the rotor in place while turning the wrench, but that didn't work either (I couldn't keep the rotor still).If I try to lift the rotor upwards, the centrifuge hangs from it and I'm worried about damagaging it so I didn't try that very hard.The centrifuge manual (http://www.nist.gov/ncnr/upload/Eppendorf_5415R_ ) doesn't go into detail about how to remove the motor. It mentions bending the rotor to one side if it's stuck, but how do I know if it's stuck in the way which is solved by doing that?Centrifuge_Manual.pdf
What do I need to do?Picture of the rotor: https://drive.google.com/file/d/ 0B9aq85qBYTsWZm5tamh0QWRJSFE/ view?usp=sharing Best regards,JP
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