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Thread: S&W M-17 elevation Mechanism malfunction.......???

  1. #1

    Default S&W M-17 elevation Mechanism malfunction.......???

    Anyone have or can post drawing of the (Sight) elevation assembly on a S&W D/A revolver.......???

    I think the thread in the "SHOE" (or Key, that slides in the slot) is stripped, But it could be it was designed with some type of "Keeper".

    Appreciate any assistance before I call S&W, for parts.

    Thanks for the help,

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    The text says:

    24. The rear sight is retained by a small screw near its forward end, on the top of the frame.

    25. After the screw is removed, move the site to the rear, and then lift it off.

    Nothing about in elevation mechanism my old book.

  4. #4

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    Thanks........I have disassembled and reassembled it about six times, elevation adjustment screw is really a nut, the shoe that slides into the slot has a bolt (or threaded flange). I wonder what they "Call" the part that slides into the slot (the "Part" I am calling a shoe or key)....???

    Quote Originally Posted by mike h View Post
    The text says:

    24. The rear sight is retained by a small screw near its forward end, on the top of the frame.

    25. After the screw is removed, move the site to the rear, and then lift it off.

    Nothing about in elevation mechanism my old book.

  5. #5

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    It is "Part" #38

    But I need a detailed schematic of parts #37 through #41 (The elevator adjustment assembly)

    http://www.brownells.com/schematics/Smith-Wesson-/K-Frame-17-4-sid589.aspx


  6. #6
    Sponsor ADfields's Avatar
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    Quote Originally Posted by AGL4now View Post
    Thanks........I have disassembled and reassembled it about six times, elevation adjustment screw is really a nut, the shoe that slides into the slot has a bolt (or threaded flange). I wonder what they "Call" the part that slides into the slot (the "Part" I am calling a shoe or key)....???
    There are 5 parts, a #3-80tpi screw, sight blade also threaded #3-80, the nut, spring, and detent plunger. The bolt is permanently staked to the nut and there is a weak spot in the bolt intended to snap the head off.

    If you turn the screw too far ether way it will snap right off and seem as though it is stripped because the spring loaded plunger keeps the head from falling out.

    Turn head as you watch nut and you will likely see that the nut isn't moving. If so rotate the head till you can see the plunger is in the slot at the top, find a way to depress the plunger there to remove screw head.

    Now with a S&W spanner nut driver (or doctored screw driver) turn the nut and remainder of screw shaft that is staked to it out of the sight body.

    Sight blade will then come out the strew head side, may need to tap it lightly.

    Now if you truly have stripped something (nut turns when head turns but sight doesn't move) your best bet is to drill out the staked portion from the nut so that you can screw the nut off and drive sight and screw out the other side together.

    Here is your pictures of what's in there and replacement parts.
    http://www.brownells.com/handgun-par...prod15368.aspx
    Andy
    On the web= C-lazy-F.co
    Email= Andy@C-lazy-F.co
    Call/Text 602-315-2406
    Phoenix Arizona

  7. #7

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    The "WINDAGE" adjustment is fine.

    The problem is with part#37 and part#38 Elevation adjustment.

    What I need is a detailed schematic of those parts http://www.brownells.com/schematics/...-4-sid589.aspx
    They show the same schematic for all K & L frame........but there is a different assembly for the rimfire than for the centerfire.


    Quote Originally Posted by ADfields View Post
    Here is your pictures of what's in there and replacement parts.
    http://www.brownells.com/handgun-par...prod15368.aspx

  8. #8
    Member gunbugs's Avatar
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    The elevation stud is what you are talking about. Square flange on the bottom. Typically when they become stripped, they will no longer stay threaded into the elevation nut, which is the "screw head" that you see from the top of the sight. The nut is retained by a small wire ring underneath the sight. The stud is a common part to all k, L, and N frame smiths. The nut is also common to the sight assemblies. And don't forget the microscopic detent plungers and spring. Easily lost if this is your first rodeo.
    "A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise, and independence to the mind."

  9. #9
    Sponsor ADfields's Avatar
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    Sorry here ya go
    http://www.midwayusa.com/product/433...25-627-629-648

    http://www.midwayusa.com/product/257...d-w-all-models

    http://www.midwayusa.com/product/412...25-627-629-648

    http://www.midwayusa.com/product/853...for-all-models

    The spring is out of stock.
    http://www.midwayusa.com/product/961...27-629-631-648

    You will also want a good set of picks. If you work inside a large zip-lock bag you'll have a 50% chance of not loosing the tiny detent plunger and spring.
    Andy
    On the web= C-lazy-F.co
    Email= Andy@C-lazy-F.co
    Call/Text 602-315-2406
    Phoenix Arizona

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