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  1. #21
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    Got the cap off the bottom of the Feed Drive Assembly (third photo is looking up from underneath the knee, at the Feed Drive Assembly)
    p1080812.jpg
    p1080813.jpg
    p1080811.jpg

    Then I got the collar off and the chewed up bearing cage

    p1080818.jpg
    p1080819.jpg

    I guess I gotta pull all the bearings? I was hoping it would come out easy after I got the collar off

  2. #22
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    All that gunk is in a lot of old machinery. oil and condensation or even some old cutting fluid. That will cause bearing failure. Maybe after you run it some change the oil. Im not familiar with the gearbox enough to suggest how to flush it out. Others may have suggestions. It looks awful dirty in there.
    Thats why some members dismantle and clean before startup. It can prevet cronic problems. Its also time consuming and sometimes expensive replacing bearings.

  3. Likes JRock1000 liked this post
  4. #23
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    There's a good drain plug to Clean and flush the Knee Cavity.
    Pretty convenient. I've swapped the oil, but I gotta get the gunk out of the bottom of the knee.
    That's easy enough. At this point, I need to pull the Feed Drive tube and Gear assembly out to gain access, So I can replace the Bevel Gear and Shaft Bearing, and apparently the Feed Drive Assembly bearings too. I'm not sure how to pull the Feed Drive assembly.
    The shaft goes up through the cavity in the back of the knee, and it's real hard to get hold of the tube.

    The Red Arrow points to the Feed Drive Bearing in the photo, looking up from the bottom of the knee.
    The Blue Arrow points to the tube that's in the way of removing the Feed Drive Gear. You can see in the second drawing, that it looks like it may be a separate piece, but I can't get good purchase on it to pull it apart.
    The Yellow Arrow points to the Bearing that REALLY needs replacing (cause none of the other stuff is working without it), the Bevel Gear and Shaft Bearing, but I can't access it from the side of the knee, so the only way to get to it will be by removing the Feed Drive Gear and Tube. I think the whole assembly has to come out, But I'm not sure how to yank it out.

    vn22l_feeddrive_manual_drawing_screenshot_2.jpg
    vn22l_feeddrive_manual_drawing_screenshot.jpg
    Last edited by JRock1000; 09-01-2019 at 01:24 PM. Reason: Pictures sized too small


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