Technical Analysis of the HW100

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wonderlander
Posts: 12
Joined: Sat Jun 07, 2008 1:35 pm
Location: indonesia

#136 Post by wonderlander »

ETA wrote:The HW100 is mainly designed for 16J.
To get the 7.5J version, a limiter is used to reduce the overall power the rifle can develope. To get the 35J version, a 7.5" longer barrel is added, the regulator is reworked, and internal springs are changed. This version is not very efficient as show on the specs., Only 30 shots. :roll: The air cylinder is a bit too small for this power level. You definitely do not want to pump up the air cylinder after every 30 shots. Unless you want a good workout. :P
If i just change the spring without adjusting:
1. C3 is the regulator adjustment screw
2. D2

will it gave me more power?

whats the best you would recommend to increase more power, i don't mind if it only allow 30 shots.... can you give the steps pls.
jwaselus
Posts: 28
Joined: Thu Oct 26, 2006 12:43 am
Location: SoCal USA

#137 Post by jwaselus »

I'd love the same advise as to increasing power of my FAC .22 but I'm happy to make any adjustments necessary.

Most guys with US FAC .22 HW100's that I know, eventually develop a problem with the rifle in that it will only shoot 21g Kodiaks (Baraccudas).
Any other pellet will give horrible groups. The rifle is very consistent and under the right conditions, very accurate with Kodiaks, but the MV is less than ideal at approx. 750 fps.

The standard shot count that people use for the .22 is 42, though it is probably a bit better. My primary interest is 100y bench shooting and I have a 4500psi CF tank so I would be quite content if my shot count went down to 25 if I could get my MV up to about 900fps.

It would be incredibly helpful if anyone that is familiar with adjusting the power on this rifle could give me any advise. My alternative is blind trial and error.

Thanks,
John
wonderlander
Posts: 12
Joined: Sat Jun 07, 2008 1:35 pm
Location: indonesia

#138 Post by wonderlander »

i found this about powering up which is very instersting

http://www.youtube.com/watch?v=OEb7Oeif-C4
Palme
Posts: 2
Joined: Fri Mar 21, 2008 8:07 am
Location: German

#139 Post by Palme »

wonderlander wrote:i found this about powering up which is very instersting

http://www.youtube.com/watch?v=OEb7Oeif-C4
old :wink:
jwaselus
Posts: 28
Joined: Thu Oct 26, 2006 12:43 am
Location: SoCal USA

#140 Post by jwaselus »

Old and not particularly valuable.

The video only shows how to remove the grub scew on the hammer sping tension adjustment but that's only a small piece of the puzzle.

What I'd like to know is spring washer orientation and regulator adjustments.

JW
zorro63
Posts: 5
Joined: Thu Nov 22, 2007 2:24 pm
Location: Spain

#141 Post by zorro63 »

jwaselus wrote:Old and not particularly valuable.

The video only shows how to remove the grub scew on the hammer sping tension adjustment but that's only a small piece of the puzzle.

What I'd like to know is spring washer orientation and regulator adjustments.

JW
:idea:

http://www.airgunforum.ca/forum/viewtopic.php?t=21674
jwaselus
Posts: 28
Joined: Thu Oct 26, 2006 12:43 am
Location: SoCal USA

#142 Post by jwaselus »

Gracias!

Now I just need my gardener to translate. :?
Strauss
Posts: 2
Joined: Fri Jul 18, 2008 7:07 am
Location: Austria

fotos of C3 position on FAC-version

#143 Post by Strauss »

Dear HW100 gurus,

I am following this thraed since a year or so.

As Iam doing maintenance on my used HW100 I wanted to ask if somebody
could post a picture of the position of his or her FAC-HW100 C3, the regulator adjustment screw.

I ended up srewing it almost fully in, only this way obtaining 300m/s with
JSP Exact 4,52 and the long barrel. But only for eight shots. Afterwards the valve doesn´t shut anymore and blows like our inhouse heating system ;) at around 15-12 bar pressure

The hammerspring-screw is in original position.

So far also many thanks from my side for this excellent thread.

BTW: the spanish PDFs don´t say much about how to adjust the C3.
this thread is more precise....


greating from Austria


Strauss
TheNightHawk
Posts: 11
Joined: Tue Nov 06, 2007 4:41 am
Location: ankara: turkey

#144 Post by TheNightHawk »

regulator screw is 1 mm deep in original fac, but you have to chrony it to be sure.

Cheers.
HW100T QF FAC .22 Nikko 8-32x60 Sidewheel
HW97K Luxus FAC .22 Hawke Map Pro HD 4-16x50
HW45 .22 Ironsights
H&K USP Compact Blue 9x19MM Trijicon NightSights
S&W Mod 1905 4.Th change .32 Long CTG
Strauss
Posts: 2
Joined: Fri Jul 18, 2008 7:07 am
Location: Austria

#145 Post by Strauss »

TheNightHawk wrote:regulator screw is 1 mm deep in original fac, but you have to chrony it to be sure.
Thanks NightHawk !

That is interesting. As my C3 after many, many, many tests ended up being about 3-4 mm deep getting 310m/s with the JSB 4,52, I suppose that my weapon, which was an original 7,5 J. weapon must have a different (smoother) springsystem behind C3.

Anyway, I could not experience any changes in V0. So, it´s done.

BTW., I pump the cylinder up to 230 bar. That gives a couple of extra shots.

Prost !
jerra
Posts: 2
Joined: Wed Sep 03, 2008 12:33 pm
Location: Finland

#146 Post by jerra »

Absolutely fantastic thread. Thanks ETA and all others!

I recently bought a 7,5J version from Germany and wanted to powerup it. I am n00b to airgunning and saw the "youtube powerup" video. All was fine until I tightened the D2 so the trigger mechanism got damaged. Very small metal fragments got sliced off 2-3 parts making up the trigger assembly and the trigger as it is now does not work. Anyways I'll get it sorted out thanks to this thread.

:)
dax
Posts: 3
Joined: Sun Sep 07, 2008 4:17 pm
Location: u.k

#147 Post by dax »

when did weihrauch introduce the later anti tamper rifles,and are they realy anti tamper.
Michael-Mo
Posts: 2
Joined: Sun Aug 24, 2008 5:58 am
Location: Germany

#148 Post by Michael-Mo »

dax wrote:when did weihrauch introduce the later anti tamper rifles,and are they realy anti tamper.
I bought a new 7.5joule .22 five weeks ago, all parts are the same like in this tread.
The piston of the regulator has a pin: 4mm long in the 7.5joule version, 4,75mm in the FAC version..
The brass part in the valve housing is also a limiter, additional spring washers can help (i don't know)
there are 16 springwashers in my 7.5 version (())(())(())(())

Mo
ps:
exchanche the hammerspring and regulatorpiston give 24 joule with around 60shots. (210bar - 110bar)
Surely more power possible, but not tested.
jerra
Posts: 2
Joined: Wed Sep 03, 2008 12:33 pm
Location: Finland

#149 Post by jerra »

Michael-Mo wrote: ps:
exchanche the hammerspring and regulatorpiston give 24 joule with around 60shots. (210bar - 110bar)
Would those two parts be the equivalent to this and this?

Thanks for the info you shared!
Palme
Posts: 2
Joined: Fri Mar 21, 2008 8:07 am
Location: German

#150 Post by Palme »

YES :) :)
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