1. The Forum Rules have undergone some minor changes and updates.  Please take the time to read them; it will only take a couple of minutes of your time. By doing so, you lessen the chance of incurring the wrath of the moderation team or making yourself look foolish to other members.

    90% of users posting adverts in the Sales forums need to be reminded to read the rules as their posts are wrong.  This is unnecessarily time-consuming and will no longer happen - if your advert doesn't follow the Sales Rules it will be deleted and you'll have to start all over again.

    To close this box once you've read it (and the Rules), click on the X in the top right-hand corner.

    Thank you.

    AGF Staff



    Dismiss Notice
  2. A reminder of one of the Forum Rules:

    'Behaviour

    Do not make inappropriate or offensive posts - including threats, harassment, swearing, prejudice, defamation, deliberate insults or name-calling, other negative remarks about this forum, its moderators and administrators or your fellow members. Even if this is just your own personal opinion, RESPECT YOUR FELLOW MEMBERS.'

    There have been changes made to our censoring software in an attempt to help with this growing problem.

    Click the X in the top-right-hand corner to dismiss this notice.
    Dismiss Notice
  3. Dear members,

    Our membership (like our country) consists of people from all walks of life; different in far more ways than can be listed here and each with a different view based on their experience of life - regardless of their colour, religion or cultural heritage. Every single person in the UK has been born of mixed race – we are a multi-coloured and multi-cultural country.

    As many of you are aware there are a handful of individuals amongst this membership that persist in making provocative, inflammatory, racist and otherwise offensive comments. This has been happening across the forum to a certain degree but is most especially prevalent in the Adult section.

    The moderation team has tried to stay on top of this, however unfortunately because of the ‘offensive’ nature of much of its content we don’t monitor the Adult section quite as much as perhaps we should. As a result much of this behaviour has gone unnoticed unless it has been reported to us. While the team always intended to take a "light touch" approach to the Adult section it would seem that some people aren’t quite adult enough to be left unmonitored after all.

    This behaviour is, and always has been against Forum Rules as well as the specific stipulations of the Adults forum and it will no longer be tolerated. We feel it's time to draw a line in the sand and as such from this point onward offenders will receive an immediate and permanent ban from the forum.

    In order for us to achieve our goal of restoring the forum to the friendly and tolerant place it once was, we ask that ALL members be mindful of the content they post and help us to stop unacceptable behaviour by using the 'Report' tool at the bottom of any offending post - the results of which can be seen only by Admin/Moderators.

    You should all receive a copy of this message by PM. 

    To close this message box, click on the 'X' in the top-right-hand corner.

    Dismiss Notice
  4. Hotmail block emails from us entering your inbox. Unless you can setup a safe sender you will not get activation emails from the forum. Please use an alternative provider or complain to Hotmail.
    Hotmail addresses include.

    @Hotmail.co.uk @Hotmail.com @outlook.com @Live.com
    Dismiss Notice
  5. Postings on Politics, Religion & Controversial Off-Topic Material

    The majority of users do not want to read about these subjects and people have left the forum as a result of it – this is after all an 'Airgun' Forum. It’s all very well to say they don’t have to read it if they don't want to, but as most of us use the ‘New Posts’ button there is no easy way to avoid it.

    All AGF staff members are in favour of people being able to discuss what they want, but we have to draw the line somewhere if it is upsetting other users. We don’t want to read about these topics either.

    IMPORTANT- The discussion of politics and religion is no longer allowed anywhere on the forum (including the Adult section).  The only exception is if it's airgun related - they must be put in the Airgun Related Politics section..

    We will not tolerate bullying or personal attacks, racism or any other offensive 'isms'. we will remove these topics from the forum, we will not give you an area where you can abuse each other. We will not hesitate to ban offenders.

    To clear this text box, click on the 'X' in the top right-hand corner.

    Dismiss Notice

HW99s stripdown

Discussion in 'Anything Airgun Related' started by shootfive, Jun 5, 2014.

  1. shootfive

    shootfive Busy Member

    Messages:
    859
    Likes Received:
    0
    Location:
    Grantham, Lincolnshire
    Can anyone help me out with a guide to how to do this?


    HW77 was easier :eek: :eek: :rolleyes:
     
    Last edited: Jun 5, 2014
  2. Patrick

    Patrick Donator

    Messages:
    12,417
    Likes Received:
    4,744
    Location:
    Wiltshire
    There's a stripdown of the HW99 in the june & july issues of airgun world and there's also some stripdown videos of HW99 on youtube
     
  3. 177

    177 Donator

    Messages:
    7,704
    Likes Received:
    576
    Location:
    Berwick upon Tweed
    1. Remove front stock bolt.

    2. Remove both trigger guard bolts (and trigger guard) :rolleyes:

    3. Unless you fancy swearing profusely and getting down on the floor to look for the safety catch and spring that WILL fly out when you drift out the two trigger unit pins, keep a little pressure on it WHILE you drift out the trigger unit pins ;) :p

    4. Remove trigger unit

    5. Remove safety catch and spring

    6. Using a ground down allen key or bend the end of a 3 or 4 inch nail over, pop the four square trigger block locking plugs out from inside the slot the trigger unit was in. Swearing doesn't help but is usually inevitable at this point...

    7. Use a pound coin wrapped in tape or an eraser on a firm surface, put the rear of the action onto it and push down then rotate to release the back block.

    8. Remove the back block to access the mainspring.

    If you want the entire piston out you have to remove the barrel as well - to do this remove the right hand side barrel pivot bolt head, which then allows you to remove the pivot bolt itself from the left hand side.

    Slide the barrel out of the front of the breech jaws and be careful not to lose the two thin shims.

    Chambers have an exploded diagram that might help: https://www.gunspares.co.uk/products/24578/HW99/

    It's an easy gun to work on.
     
    Last edited: Jun 5, 2014
  4. shootfive

    shootfive Busy Member

    Messages:
    859
    Likes Received:
    0
    Location:
    Grantham, Lincolnshire
    Thanks.

    :up:
     
  5. simonc_here

    simonc_here Engaging Member

    Messages:
    490
    Likes Received:
    1
    Location:
    Didcot
    Don't drop the tiny hex nut that will fall out of the trigger unit when you take the stock off, or take the trigger unit out or look at it sideways. It's a b****r to find again.
     
  6. Patrick

    Patrick Donator

    Messages:
    12,417
    Likes Received:
    4,744
    Location:
    Wiltshire
    Good easy to follow post,that 177, succinct and to the point :)
     
  7. shootfive

    shootfive Busy Member

    Messages:
    859
    Likes Received:
    0
    Location:
    Grantham, Lincolnshire
    Does anyone know of a good video/photo guide to working on the 99s? I can get it to bits (thanks 177!) and back together but keen to see an expert doing their stuff.

    In two minds about selling it now and might put a sleeve in to go with the Tinbum kit. A bit twangy at the moment.

    Still, if I improve it it will be worth a few pennies more to the person that tries it out (or I might find it irreplacable and keep it forever and ever...)
     
  8. davymole

    davymole Donator

    Messages:
    332
    Likes Received:
    5
    Location:
    Northop Hall, Mold, Flintshire North Wales
    Hi having bought this rifle from shootfive and after firing it decided to strip it down the only thing that I found wrong was that the spring had ground its self into one of the plastic washers threw all this plastic crap out :eek:replace the spring and breech seal, fitted a sleeved and polished piston and a s/s T R Trobb spring guide,cocks smoothly as it was for my 12 old granddaughter so she could come with me to the range.Was a bit hot at first so deluded and removed a coil over my chrono and the one at the range that I use 11.7ft/lbs smooth and no twang at all a nice little rifle well pleased
     
    Last edited: Jul 15, 2014
  9. Patrick

    Patrick Donator

    Messages:
    12,417
    Likes Received:
    4,744
    Location:
    Wiltshire
    You obviously don't think much of this delrin stuff then Dave
     
  10. davymole

    davymole Donator

    Messages:
    332
    Likes Received:
    5
    Location:
    Northop Hall, Mold, Flintshire North Wales
    hi patrick thanks again for the bits.some Delrin parts are fine I have a 35k fitted with a delrin tophat and longer spring guide these are a hard black colour,what I removed was white soft plastic not hard enough allowed the spring in a short period of time to put a groove into one of the washers, the spring had been finished ok,I find stainless steel the best ,but that just me old school
     
    Last edited: Aug 2, 2014

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice