Okuma mc-v4020 , please help !

[mig]

Hi All

Please help me please to understand what is going on with my Okuma MC-V4020

We just got ball screw replaced on Z axis because unormal noise when z axis moving up and down .

Dealer can’t give me an answer .

Nose become not as strong as before but load on Z axis in up direction up to 120 % and on down direction 20% . When Z axis not moving load 71%.

If someone who has same machine can check on yours and give me the numbers I will be grate appreciated .

Thank you in Advance

[GoetzInd]

Does this machine have a nitrogen counter balance?

 

Mike

[jeff]

Hi All

Please help me please to understand what is going on with my Okuma MC-V4020

We just got ball screw replaced on Z axis because unormal noise when z axis moving up and down .

Dealer can’t give me an answer .

Nose become not as strong as before but load on Z axis in up direction up to 120 % and on down direction 20% . When Z axis not moving load 71%.

If someone who has same machine can check on yours and give me the numbers I will be grate appreciated .

Thank you in Advance

Running a program right now, but with Z not moving, the load is about 68%-ish.. that's just holding up all of the weight of the spindle and such.

It's going to be more going up, than it will be down, because of gravity I would assume.

[mig]

machine don't have any counter balance ,only motor .

....

70 % is Normal but down and 20 % and up movement load 120% make me nervous . I think must be around 70 % +/- 10 % on up and down movements , so motor balancing weight

[Leigh @ Kodiak]

Mig, you are located in Richmond BC, correct?

[mig]

name='Leigh @ Race Face' timestamp='1357860513' post='829789']

Mig, you are located in Richmond BC, correct?

[/s]

Yeas , if you mean my house

[jeff]

Ok, just checked on my MC-V4020

I get 82% up and 58% down (this doing it manually, so it's not full speed).

I will use MDI and get the full speed %'s

[jeff]

in MDI at full speed it's about the same as manual... although it initially spikes up to 140% when it starts, but I'm pretty sure that's normal.

[mig]

Thank you very much Jeff.

This numbers looks much better to me.