Rattle up top


Results 1 to 5 of 5

Thread: Rattle up top

  1. #1
    Registered
    Join Date
    Jul 2003
    Location
    southern indiana
    Posts
    126
    Downloads
    0
    Uploads
    0

    Default Rattle up top

    Bridgeport clone (Hartford) step pulley 9x42 mill.

    During heavy cuts I get a rattle up top. Sounds just like it if from the main pulley on top of spindle.

    Tonight I took pulley system off, nothing noticable. Only thing I think it may be is the H/L engangement thing (not sure real name). Reminds me of a detroit locker in a car or something.

    Anybody else have this issue, is it normal, what do I need to fix?

    Jeff

    Similar Threads:


  2. #2
    Member wms's Avatar
    Join Date
    Mar 2003
    Location
    wyoming
    Posts
    927
    Downloads
    0
    Uploads
    0

    Default

    Ty,

    That is hard to say from here.

    Could be the bull gear assembly or the motor or the motor shaft / pulley.

    Does it happen in both high and low?

    If only low, I would look at the bull gear set.

    Both high and low, I would look at the pulley to motor shaft interface or the spindle.


    Here is a link to replacement parts.

    http://www.hqtinc.com/catalog.cfm

    Sorry, not much help from 1000 miles away. Sometimes you just need to be there.

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  3. #3
    Registered
    Join Date
    Jul 2003
    Location
    southern indiana
    Posts
    126
    Downloads
    0
    Uploads
    0

    Default

    Yes, happens in both speeds.

    I am 99.9% sure is nothing to do with the motor or pulley that is on the motor.



  4. #4
    Moderator
    Join Date
    Nov 2004
    Location
    USA
    Posts
    3028
    Downloads
    0
    Uploads
    0

    Default

    When you took the varidrive apart how much play was there between the bushings and the shafts? Are the keys worn? How much play in the clutches? (But this only relates to high gear.)

    George W.



  5. #5
    Member HuFlungDung's Avatar
    Join Date
    Mar 2003
    Location
    Canada
    Posts
    4826
    Downloads
    0
    Uploads
    0

    Default

    Is there a spline drive inside this spindle? Perhaps the spline is getting worn.

    You might try replacing the belt. A lack of horsepower could also contribute, depending on how heavy your heavy cuts are. If the cutter tends to slow the spindle with every tooth engagement, it could cause a rattling effect.

    First you get good, then you get fast. Then grouchiness sets in.

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


Tags for this Thread

Posting Permissions

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


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Rattle up top

Rattle up top