Cincinnati #3 Vertical Mill won't change RPM....
Close
Login to Your Account
Results 1 to 7 of 7
  1. #1
    Join Date
    Jun 2017
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    12
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    2

    Default Cincinnati #3 Vertical Mill won't change RPM....

    Sorry, its a #2 not #3 as the title says! I bought this machine under power back a few months ago and have discovered that while the rotating RPM selector moves and indicates all the available RPM's, the spindle doesn't speed up or slow down with any of the RPM's you select. It is stuck with just one RPM speed to be determined. The feed selector does work fine when you go through all the feeds shown. It doesn't make any noises and all the fluids are in the middle of the sight glasses. I do notice that when you disengage the spindle lever, the spindle takes a while to come to a complete stop. It sat for several years without being used by the previous owner, i'm wondering if something is just stuck or worse.

    Thanks for any insight and wisdom!

  2. #2
    Join Date
    Apr 2013
    Location
    Michigan
    Posts
    474
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    47

    Default

    Sound like you are stuck in synchromesh. Its not finishing.
    Give me a serial number, so I can get the correct manual.

  3. Likes Mike C. liked this post
  4. #3
    Join Date
    Jun 2017
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    12
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    2

    Default

    4A2V1M 8

    Thanks cmike, that would be a big help.

  5. #4
    Join Date
    Apr 2013
    Location
    Michigan
    Posts
    474
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    47

    Default C - Mike

    Quote Originally Posted by CNC-Dude View Post
    4A2V1M 8

    Thanks cmike, that would be a big help.

    Its a 210-12 vertical Dial type mill, model LL Made in 1943

    Have you checked the oil pressure. Should be 290 to 310 psi. You should port pressure to the speed selected. Then the shift of the right gears for that speed. You may have to pull the shifter bracket,
    Check the column oil level and the pressure to start. Possible sheared pin too.

  6. Likes Mike C. liked this post
  7. #5
    Join Date
    Jun 2017
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    12
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    2

    Default

    I'm relatively green to this type of milling machine and don't have a manual, so I don't know where there is a pressure port to check or test the pressure your speaking about. Any diagrams you may have or others might have and can post would be helpful.

  8. #6
    Join Date
    Apr 2013
    Location
    Michigan
    Posts
    474
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    47

    Default Cmike

    xoxoxo.jpg

    This is from a old manual with just pictures of the parts. See what you can do with this one, let me know.

    Good luck !

  9. #7
    Join Date
    Jun 2017
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    12
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    2

    Default

    Ok thanks, i'll study it over and let you know!


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •