gritty ballscrews

[AndyGuid]

Yep, I can't access the attachments either.

Get message "Invalid Attachment specified. If you followed a valid link, please notify the administrator"

[Voicecoil]

I don't know what happened to the pics, they were there when I checked the post. I've put them up again, take a peek before they disappear again!

[Voicecoil]

Well, I got a very apologetic email back from Fred, apparently they were rather rushed getting stuff out before Chinese New Year. He's suggested removing the seals and flushing through, apparently this works a lot of the time and is obviously easier than complete dis-assembly.

[phill05]

apparently this works a lot of the time and is obviously easier than complete dis-assembly.

An hour or two spent stripping down, clean properly, and repack would in the long run save you some pain in the future.

Phill

[Voicecoil]

I'm going to try the flushing thing, I know what they should feel like when put together properly and if they don't meet that it'll be a complete strip down :-( . If nothing else, cleaning out some of the crap will make winding the nuts down to get the balls out less graunchy.

BTW, what would be the recommended oil/grease to use when re-assembling?

[AndyUK]

Hows things going with these screws? Had any luck?

If you're still looking for oil/grease recommendations, Lee gave me a great reply recently - the short version being lithium based grease - if you look at the HIWIN greasing guide, you'll also see EP1 mentioned.

http://www.mycncuk.com/threads/11552...y?goto=newpost

[Voicecoil]

Yes, Fred has been good to his word and sorted me out with some replacement bits including completely replacing the 1204 screws which had the slightly wonky end machining - you can't fault the guy's service, 10/10. Regarding the grease, looking at the specs Hiwin recommend, I've realised that I already have something that should do - Mobil 1, which I bought for re-packing the struts on the car.