okuma mc4020

[mig]

Enybody has this problem with vmc okuma mc4020 with through coolant system:

Spindel is not rotate when empty.

regards

[Thad]

Is your spindle lube level low? Boy, say that 5 times real fast!

 

It sounds like our "Way lube too low" error on the Fadals. The machine won't do anything until it's filled.

 

Just a guess.

 

EDIT: Then again, I could be WAY off. Will the spindle not start if there isn't a tool in it?

 

Thad

[DavidB]

quote:

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Spindel is not rotate when empty.

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I thought it was a no no to start spindles without a tool in them???

[mig]

Yeas DavidB you are right

[Thee Cutterman]

quote:

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I thought it was a no no to start spindles without a tool in them???

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Happens on most Okuma controls that i have run, but does not show an alarm to tell you not to do it.

[jeff]

I think that Okuma finally got smart and put an alarm here.

If you use through tool coolant without a tool in the spindle the O-ring will blow out and wont seal against the retention knob,and then you will have coolant spraying up into the motor area.

[mig]

I run this mashine for 2 years , it was working till now.

[Thee Cutterman]

Only other thing i can think of mig is that if the spindle was rotating before without a tool, the spindle clamp proxy switch may have been sending the wrong message to the contoller all this time, Thus this is why you have be able to rotate the spindle without a tool it it.

I tryed it on my 3 year old MB56VA, OSP100E controller just before i left work and there was still no alarm coming up. Can i ask why you want to run the machine without a tool in it?.

 

Darren

[beej]

On our 4020, we had a problem with that too. It actually had a tool in the spindle but I was getting the same alarm. It turned out to be a metal chip that had gotten in the enclosure and landed on the sensor that tells it whether there is a tool in the spindle or not.

[mig]

Hey guys !

Thank you for response.

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Can i ask why you want to run the machine without a tool in it?.

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Because if the is no tool in the pot you ask, it stops to do tool change right on the meddle of cycle and no alarm.

beej , where lockated this sensor?