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Thread: 1991 VF1 Tear down, clean and repair

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    Registered autotechsteve's Avatar
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    1991 VF1 Tear down, clean and repair

    I have taken the outer panels off of the mill in the past couple of days. The plan is to get it taken apart, clean everything, fix what needs to be fixed and reassemble it. Tear down has gone smooth so far, just messy. I did find that industrial floor cleaner and a pressure washer will do wonders when it comes to the plastic housings on these old machines.







    First big question I have is can I take the lower tray off of the mill without a lot of headache. It has a fairly thick layer of sealant where it meets the base. I could clean it where it is but I had such good success getting the sides clean I would really like to give the lower tray the same treatment. I would also be replacing the sealant, which I am sure is original and couldn't hurt.






    Next issue I ran into is the moving side cover for the tool carousel. Sorry for the terminology, I am just not sure of the technical name but it is the curved door that hides the taper portion of the tools when the carousel moves away from the spindle. The door is there but the mechanism that makes it open and close appears to be gone, why I don't know. I can see the slot on the rear side of the door that I am sure is part of the mechanism but the rest is just not there. In the picture the slot can be seen just behind the cable. Does anyone have any pictures of the correct setup or any other info that will help me sort it out?





    Next issue is a random hose, blocked off, at the top of the machine next to the spindle motor. It is a plastic line, bent over itself and zip tied to seal it off. It looks to be too big to be way lube. It comes out of the service loop and I have not been able to find an empty fitting where it might go. I have not traced it back to its origins just yet, figure I would toss a picture out here and see if someone recognized it.





    On another one of my posts it had a picture of the mill as I was buying it and someone commented on the tarp covering the z axis ways. Well I found out the the way covers are not on the machine, they were badly mangled and showed up in a box with the mill when it was delivered. I have 3 pieces of the cover, one piece not usable and the other two are badly bent. Aside from the three pieces I have I am not sure what all is supposed to be there. Does anyone know where I can find a whole cover, new or used, or does anyone have any pictures or other info?





    And last but not least. The wiring to the door switches is pretty bad. Would it be horrible to take the switches out of the circuit eliminating them. Are you guys disabling the door alarm when you run your mills? I know safety wise that's a bad idea but I am trying to come up with a game plan while it is apart.

    Steve


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    you are looking for something that looks like this.
    it is a folded piece of sheet metal - which is bolted on to the toolchanger.
    there is a pin on the bottom that locates in the slot on the door.
    as the tool changer moves, the door swings open/closed.
    Sorry I don't have an actual photo.

    hope this helps
    Attached Thumbnails Attached Thumbnails 1991 VF1 Tear down, clean and repair-2011-12-15192505.jpg  


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    Door locks, sure you can remove them if your the only one running the machine. If you have employees, and someone gets hurt your toast. Big OSHA and ANSI problems with "removing a factory supplied safety device". Whole bunch of regs on machine tools.


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    S.N.A.F.U. miljnor's Avatar
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    OMG. I really wish all the fear mongers would stop with the warnings!

    Anyone who doesn't know that you can get in trouble by bypassing a saftey mechanism is either too stupid to live or well, too stupid to live.

    So quit stating the obvious and keep your fear of the "man" to yourself. God help me from those wishing to save me from myself. Because Obviously I can't do it..and we need to litigate everything into uslessness.

    rant over....

    I've always wanted to get one of these old machines and refurbish it so I will be watching all your progress.

    How much did you get the machine for?
    thanks
    Michael T.
    "If you don't stand for something, chances are, you'll fall for anything!"


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    Quote Originally Posted by miljnor View Post
    OMG. I really wish all the fear mongers would stop with the warnings!

    Anyone who doesn't know that you can get in trouble by bypassing a saftey mechanism is either too stupid to live or well, too stupid to live.

    So quit stating the obvious and keep your fear of the "man" to yourself. God help me from those wishing to save me from myself. Because Obviously I can't do it..and we need to litigate everything into uslessness.

    rant over....

    I've always wanted to get one of these old machines and refurbish it so I will be watching all your progress.

    How much did you get the machine for?
    He asked about bypassing them. It's not fear mongering, it the friggen law dumb ass. How is an employee supposed to know he bypassed them? And even if an employee knows he did, it would still never cover his ass in court.


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    Quote Originally Posted by miljnor View Post
    OMG. I really wish all the fear mongers would stop with the warnings!

    Anyone who doesn't know that you can get in trouble by bypassing a saftey mechanism is either too stupid to live or well, too stupid to live.

    So quit stating the obvious and keep your fear of the "man" to yourself. God help me from those wishing to save me from myself. Because Obviously I can't do it..and we need to litigate everything into uslessness.

    rant over....

    I've always wanted to get one of these old machines and refurbish it so I will be watching all your progress.

    How much did you get the machine for?

    There are very few if any people here who would disagree with the opinion that all of the safety systems are far more trouble than they are worth.

    But, that being said there is a difference between small shops who are not under continuous scrutiny from the business police and the big shops that deal with dozens of operators who can be shall we say "opportunistic."

    I do not know of one shop that has removed switches and disabled systems, "IF" they can disable them with a change in setting 51. That makes it an operator decision. Taking the switches and such off would be considered a shop decision.

    The problem comes from large shops that have many employees. You always have the problem of employees that will game the system or are just incompetent. For those, I would not disable anything.

    For me, I make my own decisions and take my own chances. I have had jobs tht ran 12 parts at once and only had a cycle time of 30 seconds. I will disable the doors for that!

    If you have an older machine that can use the 51 Off setting, I would put the system in order, then disable.

    P.S.: I don't think I would buy a new machine at this time----------You know why.

    Mike
    Haas VF-2, HA5C, Hardinge CHNC 1, BobCAD V23


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    Well put. Do I like door interlocks, he'll no. I just don't think it's prudent to tell a guy sure, go ahead and disable your door interlocks without telling the facts. I've been called in on numerous accidents, and about the first thing insurance, lawyers, OSHA ask is are there door interlocks and are they functional. Only once were door door interlocks disabled that would have made any difference in the outcome. After the month or two long investigation, then the crime scene clean up guys get there any totally destroy the machine. Those are some harsh chemicals!


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    S.N.A.F.U. miljnor's Avatar
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    I understand all (or most) of the complexities of the business environment....I just hate the attitude that has prevailed in the last 50 years on liability and safety. And really hate people that need to spout how some watchdog is going to get me...They probably will eventually. But we are all big boys (girls?) and go into this eyes wide open.

    It's like the old one about defending yourself, well it may be illegal in several places in the world but I'd rather be judged by 12 than carried by 6. Someone never needs to remind me of the injustice of bureaucracy, as I am not a 12 year old anymore.
    thanks
    Michael T.
    "If you don't stand for something, chances are, you'll fall for anything!"


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    Not to disagree, just playing the devils advocate, what about all the electricians that died around the turn of the century, it was a staggering number. OSHA, training, and safety policies probably dropped that figure 99%. Same with iron workers, they hated the idea of having a harness on. Machines aren't manual any longer, they also don't run at 300ipm any longer. Do I like the latest door locks, no. But I also don't want my hands in the machine when it jumps to 2500ipm rapids in a tenth of a second. I sure don't move that fast any longer. So it's not just about liability, it's about worker safety. Do I think the operator should have the choice to disable interlocks, sure, if they know the risks, and are well trained on the equipment.


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    What is not understood by most people these days is that the more government tries to protect people form injury at work and other times, high fat diets, sugary snacks, smoking, eggs, coffee and every other possible things that can hurt them--------the less they take care of themselves. Government is causing the injuries and other problems that they are trying to eliminate.

    We all know that common sense is not common any longer. Perhaps we should call it rare sense now. The simple reason for this is government. When government was just on the fringe and not trying to direct every aspect of our lives, we paid attention to things around us. Now most just stumble through life and look to sue someone if we make a mistake.

    Everyone please aim for a day we can repeal many of the regs that are in place. I don't know about you, but I can take care of myself. If I screw up, I'll take my medicine and admit it.

    Mike
    Haas VF-2, HA5C, Hardinge CHNC 1, BobCAD V23


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    Quote Originally Posted by underthetire View Post
    Not to disagree, just playing the devils advocate, what about all the electricians that died around the turn of the century, it was a staggering number. OSHA, training, and safety policies probably dropped that figure 99%. Same with iron workers, they hated the idea of having a harness on. Machines aren't manual any longer, they also don't run at 300ipm any longer. Do I like the latest door locks, no. But I also don't want my hands in the machine when it jumps to 2500ipm rapids in a tenth of a second. I sure don't move that fast any longer. So it's not just about liability, it's about worker safety. Do I think the operator should have the choice to disable interlocks, sure, if they know the risks, and are well trained on the equipment.
    DO NOT PUT YOUR BODY INSIDE THE MACHINE WHILE RUNNING. "NO" EMPLOYER WILL TELL YOU TO DO OTHERWISE!!!!!!

    SIMPLE ENOUGH?!??!?!?!

    No regulation needed.
    Haas VF-2, HA5C, Hardinge CHNC 1, BobCAD V23


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    Tell that to the guy that's missing most of his hand from a 6" shear mill. Thought he hit tool clamp but hit spindle forward by mistake. 6000 rpm while still holding the cutter. A working door interlock would have avoided that. He had been machining for 20 years. Accidents happen. Another reason I don't like those single tool eject buttons btw.


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