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Hw 100 Fires When Cocking

Discussion in 'Technical' started by MDD, Feb 27, 2020.

  1. MDD

    MDD Member

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    Hi i have just serviced my HW100 some new lever pins and cocking arm all worn and getting sloppy now it fires when i cock the gun or take safety off, can anyone throw any ideas to try i cant see anything wrong. Cheers
     
  2. TonyB55

    TonyB55 Engaging Member

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    The trigger sears must not be engaging properly. Try adjusting the trigger.
     
    oedbachgen, 2506sendero and MDD like this.
  3. BallisticBill

    BallisticBill Looking outside the box

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    As above .
    I'm sure I've read similar before, possibly on WOC, something on assembling linkage perhaps, so you might search there.
     
    MDD likes this.
  4. MDD

    MDD Member

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    Hi Tony i made sure i never touched the trigger i took it of and the lower and middle sear meet spot on, the only thing i never changed was the hammer i dont have anything to check it against, thanks
     
  5. MDD

    MDD Member

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    Thank you, how do i change my Acc name,
     
  6. MDD

    MDD Member

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    Bill WOC i am not sure what it means sorry,
     
  7. vonbeck

    vonbeck Keyboard Hero

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    Winerack owners club

    .
     
    GingerMonkey93 likes this.
  8. Blackmax

    Blackmax Rebel!

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    Middle sear is worn or broken.
     
    Redcap 114 and mikeyhall1 like this.
  9. MDD

    MDD Member

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    HI that makes sense for it not to shoot i have to hold the middle sear down touching the lower one then it cocks proper but fires when i let the sear jump upwards, i did look at pics of a new one and could not make out if mine was worn or broken,
     
  10. Blackmax

    Blackmax Rebel!

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    Did you by accident click the trigger before you refitted it? If so this is your answer.
     
    Redcap 114 likes this.
  11. MDD

    MDD Member

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    Yes i did
     
    Blackmax likes this.
  12. MDD

    MDD Member

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    How can i reset the trigger mech before i mate it to the gun i did think it could be a problem. so thankful for your advice
     
  13. MDD

    MDD Member

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    are you able to repair gun if i post it to you, many thanks. Mart
     
  14. mikeyhall1

    mikeyhall1 BRIT SEALS - M & M Products - TbT

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    You replied to your own post bud so I’ll tag @Blackmax in so he will now see it.
     
  15. Blackmax

    Blackmax Rebel!

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    If you cock the unit then refit it without pulling the trigger as you pull the side lever back it can damage the sears.

    I can, I have a couple of spare middle sears. I’ll pm you.
     
    Last edited: Feb 27, 2020
    Deleted member 954 likes this.
  16. MDD

    MDD Member

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    Hi thank you for your help, can i send some photos of the sears in ready to fire position if you think it looks damaged i would be happy to buy a sear from you, i cant see if a part of it has broken and i have tried assembly as n your ast post, it will only cock correctly if i hold middle sear down onto the bottom one, but then it fires if let go or take safety of, the safety catch is removed at the moment please have a look at the photos if possible, many thanks
     

    Attached Files:

  17. Wewekokowe

    Wewekokowe Busy Member

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    i know it is boring and i said it before many times,

    for usual mainenance there is no need to remove the trigger assy.

    even when you go into the regulator.

    shame the tuners dont tell you this on youtube huh

    you have to look in higher detail at the mating/engaging edges of the sears
    look for jagged chipped corners

    may still be tunable with all the hidden and visible screws around and under the trigger blade

    did you try to take it apart one more time and put it back together?
     
    Last edited: Feb 28, 2020
  18. Deleted member 954

    Deleted member 954 Pro Poster

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    Depends how damaged the sears are, may not ONLY be the middle sear. I have seen many where all three sears have been damaged. Basically if you have one damaged then closely inspect them all.

    Like @Blackmax says though, the middle sear is most common.
     
    Blackmax likes this.
  19. Blackmax

    Blackmax Rebel!

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    Sorry, I can’t see from the photos, I need to see it up close. The bit that normally breaks is the leading pointed end, if it’s snapped you should be able to see it.

    Here’s your part, I can’t recommend Knibbs highly enough.

    http://www.airgunspares.com/store/product/10227/WEIHRAUCH-HW100-Middle-Sear-Part-No.-HW100MIDSEAR/
     
    PBaz Barrett likes this.
  20. PBaz Barrett

    PBaz Barrett 'I love slinging lead me'..

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    Yeah great place to source bits, postage cost's more than the part you ordering most of the time :rolleyes:..
     
    MDD likes this.

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