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  1. #1
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    72
    Posts
    5,080

    Default CQ6230 Oil Point Warning

    Hi All,

    I was changing gears around on the CQ6230 and turning by hand it felt a little sticky,
    when I looked more closely the shaft of the lead screw gear box was not turning freely,
    so after pulling the whole thing apart the problem was obvious. The shaft was running dry..

    The oil way was blocked with crap, and so no oil was getting through to the shaft.



    I cleaned it up as best I could and re-assembled it all. Seems fine now.. so I'll see how it goes..

    But, I suspect that I just dodged a bullet, so this post is a warning to anyone else with a similar set up..

    Check that the oil ways are clear. It wasn't at all obvious that it was blocked.

    Regards
    Ray

  2. #2
    Dave J Guest

    Default

    A good reminder post Ray, glad it didn't do any damage to your lathe.

    It is not a hard to miss that one when oiling, I have missed it a few times myself because it is so tucked away.

    Dave

  3. #3
    Dave J Guest

    Default

    Forgot to ask, whats the 6 allen head bolts in the sprocket? I think I can remember you making a gear for it, or am I thinking of someone else?

    Dave

  4. #4
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    72
    Posts
    5,080

    Default

    Hi Dave,

    That's the new idler gear I made, the aluminium plate wasn't thick enough for the bearing housing, and I needed a means of holding it in the chuck anyway.

    I've been thinking, I should make up a little oil cap of some sort, to fit that hole, so as to keep the crap out, any thoughts?

    Regards
    Ray

  5. #5
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    8,833

    Default

    Hi Ray
    What size is the hole? You might be able to get a oil cup to fit or one of those spring loaded ball bearing oiler things. Of course a little plug with a knurled handle would be more fun to make.

    Stuart

  6. #6
    Join Date
    Oct 2008
    Location
    Cairns, Q
    Posts
    644

    Default

    Ray,

    Thanks for that. Believe it or not, my manual does not mention that oil hole, so I've been running the lathe for about twelve years (fortunately not a lot of total hours) and I have never put oil in that oil hole. I never really thought about it - just assumed it was a hole for a pin spanner to undo a bearing retaining collar. I'll remember it in future!

    Frank.

  7. #7
    Dave J Guest

    Default

    Quote Originally Posted by RayG View Post
    Hi Dave,

    That's the new idler gear I made, the aluminium plate wasn't thick enough for the bearing housing, and I needed a means of holding it in the chuck anyway.

    I've been thinking, I should make up a little oil cap of some sort, to fit that hole, so as to keep the crap out, any thoughts?

    Regards
    Ray
    A little short bolt that drops in the hole would do for now, and will be easy to slid out to oil.
    Or you could be real trick and machine up a plug with a knurled head.

    Dave

  8. #8
    Join Date
    Aug 2008
    Location
    Adelaide
    Age
    66
    Posts
    1,285

    Default

    What about a length of copper pipe from the hole to the top of the lathe headstock so it's easy to drop a bit of oil in now and then and to get the opening away from the swarf?

  9. #9
    Join Date
    Aug 2008
    Location
    Charlestown NSW
    Age
    63
    Posts
    1,512

    Default

    Quote Originally Posted by Gavin Newman View Post
    What about a length of copper pipe from the hole to the top of the lathe headstock so it's easy to drop a bit of oil in now and then and to get the opening away from the swarf?
    I was thinking the same. A small one of these on top.
    bollie7

  10. #10
    Join Date
    Aug 2008
    Location
    Charlestown NSW
    Age
    63
    Posts
    1,512

    Default

    While looking for oil cup suppliers just now I came across this site.
    The NippleShop Oil Hole Covers & Cups

    with a name like that I thought it had to be worth a look. lol

    bollie7

  11. #11
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    8,833

    Default

    Such a great site bollie7. Such a shame they charge 79 for export orders :'(. So I guess I'll just have to use there site to find out what is available, then buy it somewhere else.

    Stuart

  12. #12
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    72
    Posts
    5,080

    Default

    Thanks for all the suggestions, much appreciated.

    I like the one Bollie suggests. The BS15 shown below is the sort of thing that I had a mental picture of.



    Searching for "oil nipples", has the potential to bring up some distracting sites (sights)...

    Regards
    Ray

  13. #13
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    8,833

    Default

    Ray...... what size is the hole?

    Stuart

  14. #14
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    72
    Posts
    5,080

    Default

    Hi Stuart,

    Sorry, I meant to double check that... The hole is 1/4"

    Regards
    Ray

  15. #15
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    8,833

    Default

    I have a used 3/16 BS15 with a copper bush to bring it up 1/4. If you're not in a hurry I'll slip it in with your discs or I could post it tomorrow if you can't live without it. (I have a new 6mm one but I don't see how you could make it fit)
    Stuart

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