[sdfoiler]

Trying to get some cleaning/maintenance done to my 1990 4020. I measured the drawbar force and it's around 1175. I've only had the machine for 1.5 years, so I have no idea when the bellevilles were changed last. Sounds like the force is supposed to be up in the 1700 range. Should I swap out the belleville washers? Never done it before, but it doesn't look too terribly difficult. I'm not having any issues with the tool changes, although the surface finish could be a little better. Just wondering what the cutoff is for when to change them out.

Suggestions?

[carbidecraters]

Trying to get some cleaning/maintenance done to my 1990 4020. I measured the drawbar force and it's around 1175. I've only had the machine for 1.5 years, so I have no idea when the bellevilles were changed last. Sounds like the force is supposed to be up in the 1700 range. Should I swap out the belleville washers? Never done it before, but it doesn't look too terribly difficult. I'm not having any issues with the tool changes, although the surface finish could be a little better. Just wondering what the cutoff is for when to change them out.

Suggestions?

Nothing wrong with it. We are from 900-1200lbs on all our machines. Where did you get 1700lbs from?

[sdfoiler]

THanks for the message. Just reading on different threads about what the force should be:

http://www.cnczone.com/forums/fadal/...bar_force.html

and

http://www.cnczone.com/forums/fadal/...placement.html

I tried to find it in the fadal documentation, but never did find where it specifies what the force should be.

Thanks for the help!!!