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Hw110 Magazine Indexer Fix

Discussion in 'Technical' started by Crom, Nov 11, 2020.

  1. Crom

    Crom Crom is your Göd

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    We have been getting more and more of these in the workshop over the last few weeks.

    I fix them and have provided this little guide for anyone who comes across the problem and doesn't want to have to send it back to HC.

    The magazine Indexer unit on the HW110 is held together with a push fit ferrule - that seems to be working loose and dropping (out of/in to) the gun.

    HW110_Indexer_001.jpg
    HW110_Indexer_002.jpg

    Had two in this week with exactly the same problem. I initially thought of just knocking up another ferrule and press fitting it back on... but would this last???

    So decided on a better solution - the part that the ferrule is press fitted onto is approx 2.9mm... so I put an M3 thread on it. Then I made a new brass ferrule with an internal M3 thread on it and used Bondloc to fasten the ferrule thread.

    HW110_Indexer_003.jpg
    HW110_Indexer_004.jpg

    I use Bondloc because it sets quite fast - some bearing retainers take ages.
    HW110_Indexer_005.jpg
    That sucker ain't coming off again anytime soon.
    HW110_Indexer_006.jpg

    The last picture shows how it looked originally (sorry haven't got one in the shop to show) except the original ferrule was made of steel and obviously NOT threaded.

    Edit: Possibly the reason for a crunching trigger? @BallisticBill
    Edit: Sorry about the poor picture quality

    Ferrule:
    4mm diameter
    1.6mm deep
    M3 thread
     
    Last edited: Nov 11, 2020
  2. Bunyip

    Bunyip Posting Addict

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    Nice fiddly work, :)
    Thanks for the post, could help a lot of people.:thumb:
     
    Crom likes this.
  3. fishy-steve

    fishy-steve Engaging Member

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    What are the symptoms when you have this failure?
    You might remember mine went back to Hull Cartridge with a seized cocking lever. It came back fixed but they wouldn't tell me what the cause was.:(
    Steve.
     
  4. Crom

    Crom Crom is your Göd

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    Mmmm exactly, had a few seized like you mention. Others have been fine until dismantled for servicing....

    So it seems so - not found any other problems with the trigger...
     
    Last edited: Nov 12, 2020
    fishy-steve likes this.
  5. Deejayuu

    Deejayuu Donator

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    Thanks for sharing. Had similar, not HW indexing, our solution was clumsy by comparison.
     
  6. Crom

    Crom Crom is your Göd

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    Interesting - please elaborate :thumb:
     
  7. Deejayuu

    Deejayuu Donator

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    Nowhere near as technical. Drive ring/rocker arm bush etc drilled/tapped at junction so screw forms a "halving joint" prevents slipped around and sideways.
     
    Crom likes this.
  8. Crom

    Crom Crom is your Göd

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    Was it for hw110?

    Your post said "not hw indexing" I thought you meant not a hw. I am thinking you now meant "hw not indexing" ???

    I did think about chopping the pin off but threading was easier to be honest. I guess the difficult bit would be making the ferrule if you haven't go a lathe.
     
  9. Sean110

    Sean110 Busy Member

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    Nice work Steve!

    .
     
    Crom likes this.
  10. BallisticBill

    BallisticBill Too much keyboard, not enough action!

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    Nice!

    Makes me wonder why there was a HW ferrule at all. Was it a fix to the earlier problems with the mechanism seizing? I've only seen guns made after HW allegedly fixed the cocking/advance issue and never really looked at this.
     
    Crom likes this.
  11. Crom

    Crom Crom is your Göd

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    Aha!!! Found the ferrule!!! - well on one off them, the other was gone.

    HW110_Indexer_007.jpg

    So should work OK until someone remove the indexing unit... or the spring pings out?
     
  12. Jonkem

    Jonkem Very Active

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    As usual, top work and top info all for free :claping::claping::claping:
     

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