Grease Clogging and Solution
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  1. #1
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    Default Grease Clogging and Solution

    I just wanted to pass this information to possible save your machine from premature wear. We have a VF6 and a VF2 that just turned 2 years old. Almost two months ago I started getting a 2082 alarm.
    (image below shows the grease plugs)

    "2082 RESIDUAL PRESSURE DETECTED PRIOR TO AXIS LUBRICATION CYCLE"

    The VF6 would hold 90psi all weekend long powered down. The machine also use the purple grease. Well I can tell you that the purple grease clogged every single line on the VF6. The clogging area is the fittings that the copper lines connect to. Inside of the brass fitting is a setscrew and the brass fitting it drilled oversized then tapped. The grease has to flow around the small void between the threads. It took a tech 2 days to remove the lines, remove the plugs and put it all back together.

    We no longer use the purple grease, we use a synthetic oil from Kluber/Summit (Syngear SH-1150). Works great and I don't think we will have any problems after this.

    From what I could find out it that the purple lub is a diluted with a thinner/spindle oil. I think what may be happening is that when the lub try's to go through void around the threads it is separating the oil from the grease and the grease is left behind. Over time the lub can not get through the grease clog. You can see all the "plugs" from the lines. They feel more like wax than grease or any lubricant.

    Just an FYI to help save your machine!

    file_004.jpg

  2. #2
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    Thanks, that's a good heads-up.

  3. #3
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    Why exactly are company’s using grease for this application anyways?
    If it causes premature wear and failure it’s certainly got “better for the environment” when you need new parts/machine because yours crapped out

  4. #4
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    How did you get to the lines?

    Haas switch to tan color grease made by kluber.

  5. #5
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    Quote Originally Posted by Djstorm100 View Post
    How did you get to the lines?

    Haas switch to tan color grease made by kluber.
    I would like to say to anyone that has the Purple Grease to just dump it and replace with the Kluber/Summit Syngear SH-1150 asap! Not cheap at @$350.00 for 5 gallons but far cheaper than a damaged machine!



    Well I didn't but the Haas tech did. I helped a little here and there but he was built like a horse jockey and was able to take off key guarding and reach all the fittings. He removed every copper line and every fitting on all the trucks/linear slides and ball nuts. Once out he blew air through the lines and slugs of grease, which was more like wax, slowly pushed out the end. All the brass fittings with the setscrews were packed with the "wax" which he also blew out and soaked in mineral spirits. A two day process and really tight areas to get into. They did have a high pressure pump that Hass recommends on their sight but he did it the right way insuring that all plugs and clogging were removed.

    Here's a link to Haas and how to clear lines with the high pressure.
    Haas Liquid Grease - Purge Clogged Lines

    After assembly we put in the Kluber/Summit Syngear SH-1150, which is just like a heavy clear-slightly amber gear oil, and areas are now being oiled well! It sounds so much quieter and smooth when rapiding.


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