Tuning a 1010 scale

Discussion in 'Main Message Board' started by SPJ, Aug 25, 2018.

  1. SPJ

    SPJ Silver $$ Contributor

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    Gents
    What is the best way to maintain tune on my RCBS 1010
    Cleaning?
    Adjusting?
    Don't mess with it?
    They are ridiculously accurate and sensitive but sometimes a kernel difference when returning to zero.
    Maybe stop breathing around it?
    J
     
  2. Mulligan

    Mulligan Gold $$ Contributor

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    Get with @BoydAllen
    He walked me through tuning mine and it works great.
    CW
     
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  3. swadiver

    swadiver Silver $$ Contributor

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    after cleaning the knife edge pivot, try burnishing it with a very small amount of pencil lead. it worked on my Scott Parker tuned M5.
     
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  4. SPJ

    SPJ Silver $$ Contributor

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    What would you use to clean the knife edges?
     
  5. swadiver

    swadiver Silver $$ Contributor

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    i use some rubbing alcohol and a cotton patch and then gently blow off any residue or cotton threads with an air can

    Boyd is the man with this stuff. i believe it was him that talked about the pencil lead mod
     
  6. wanttobe

    wanttobe

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    Would this work on the 5-0-5
     
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  7. hoz53

    hoz53 Gold $$ Contributor

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    http://benchrest.com/showthread.php?75444-Accurize-a-balance-beam-scale Wondered if I could get that link copied. Whew—. As the guy above said Boyd Allen has the goods on doing this job.
     
  8. 1066

    1066

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    Your problem is more than possible to be dust in the "V" blocks - a quick way would be to use a cotton bud with some sort of spirt or alcohol. A better way would be to take the bearings out and give them, and their housings, a good scrub all round with a toothbrush, again with alcohol.

    It could also be the tips of the knife edges touching the bearing end plates. In a perfect world, this shouldn't matter, the theory is that the tips of the knife edge are exactly in line with the blade edge, as the beam rotates, the tip, if it's touching, should induce very little friction as the beam rotates round this perfect pivot point. However, nothing is simple, the bearings on the RCBS range are all free floating and wobble about a good bit when in use (mostly a good point)but the plate stays still. Also if the tip is not quite in line with the blade edge the tip tries to scribe an arc on the end plate which causes a good deal of friction.

    To test if it's an end plate problem, just remove them and try to zero your scales again, if you still have the same problem at least you know it's not that.

    The other area where you may have problems is the panhanger stirrup, it should be free to hang on the centre of it's own little knife edges and not rubbing.

    Just as a matter of interest, as the knife edges of these scale are not available as spares I've decided to make my own.

    [​IMG]
     
  9. SPJ

    SPJ Silver $$ Contributor

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    Very informative Gents
    My scale is very accurate and sensitive. I'll look into delicate cleaning the V blocks and check the pan hanger.
    My Electric scale on its best day doesn't compare.
    J
     
  10. hoz53

    hoz53 Gold $$ Contributor

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    And the position of the hook of the pan holder on the loop it sits in can make a difference. Make sure it’s the same each time.
     
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  11. Mulligan

    Mulligan Gold $$ Contributor

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    Yes
     
  12. Rsadams

    Rsadams

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    Boyd also helped me with mine... His advice returned mine to great again...
     
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  13. SPJ

    SPJ Silver $$ Contributor

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    I have to keep in mind here that this is occasionally and only by maybe a kernel difference.
    No way in hell I could see that on paper"
    I'm just being anal
    J
     
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  14. Puzzaz01

    Puzzaz01 Gold $$ Contributor

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    Get in touch with Scott Parker, get him to tune it and never look back. I have on of his tuned redding scales and it's amazingly repeatable. You can even watch it swing when you drop a half of a kernel of H4350.

    Darrin
     
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  15. SPJ

    SPJ Silver $$ Contributor

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    I'll talk to Boyd tomorrow about maintenance and light cleaning
    Thx all
    J
     
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  16. rogn

    rogn Silver $$ Contributor

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    I notice that one thing is never mentioned about mechanical balances. When the balance is not in use it should be immobilized to prevent unnecessary wear on the critical knife edges. Air currents and other things can cause the balance to swing and after 30 or so years( mine is probably about 40 years old) the wear can add up resulting in a reduction in sensitivity. When mine is idle I try to move a vial of sight paint gently up against the pan to prevent unwanted motion.
     
  17. boltfluter

    boltfluter Gold $$ Contributor

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    Some very good advice in this thread. My electronic scale is on its way out. In your opinion, what would be the best beam scale to purchase and have fine tuned? Thanks for any and all advice guys. Some good posts lately. :D:D

    Paul
     
  18. JMayo

    JMayo

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    I have given up on my old worn out 1010. Bought a Sartorius. Un real how fast I get right to the EXACT weight.
    Weighing brass, bullets combining 5's.
    EXACT powder ....I hope to at least see grouping get more consistent.
     
  19. SPJ

    SPJ Silver $$ Contributor

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    Paul
    I believe Scott Parker is the leading authority on these, he also has scales tuned and ready to ship at a fair price. I can PM his # if you wish.
    Jim
     
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  20. boltfluter

    boltfluter Gold $$ Contributor

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    Jim,

    Just a little cautious about dealing directly with Scott. As mentioned lately, many times, he is MIA when getting product to a customer in a timely manner. I have had no personal dealings with him. Just what I have read on the forums. Apologies if this is incorrect. :);)

    Paul
     
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