GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: Adkguide7943 on February 16, 2018, 04:18:51 PM

Title: Bullboss hammer bounce
Post by: Adkguide7943 on February 16, 2018, 04:18:51 PM
Just wondering if anyone could help me out? I just replaced the hammer sear or debounce device? Not sure which it is because Hatsan USA sent the part I needed and on the receipt they called it a Hammer sear but I think it's the HDD? They also sent me a new hammer screw. I installed correctly and have the gun set to the speed that is most accurate for the JSB 18.13's that I'm using. It is a tack driver again, I have no problem with the accuracy but now it burps air but not on every shot? Sometimes when the tank is low. I didn't have a hammer bounce before, didn't change the spring. I wonder if an o-ring may have split or is not seated right?
Title: Re: Bullboss hammer bounce
Post by: redlined_b16a on February 17, 2018, 09:21:06 AM
Pull it apart and put it back together.
Twice on my bullboss I accidentally let the hammer debounce
pin slip out of the grove and the gun assembled wrong.

Gun was accurate but hammer debounce did not function.
Title: Re: Bullboss hammer bounce
Post by: Rocko on February 17, 2018, 10:44:28 AM
Like Redline said, it can be a bit of a challenge to get things back together properly.  To make it easier, I put a small dab of epoxy on both ends of the pin to keep it in place.
Title: Re: Bullboss hammer bounce
Post by: Adkguide7943 on February 17, 2018, 10:12:46 PM
Will do, thanks for the reply guys.
Title: Bullboss
Post by: rgb1 on February 18, 2018, 09:40:53 PM
Would anyone have a schematic
that includes a parts list ?

                                  Ron
Title: Re: Bullboss hammer bounce
Post by: redlined_b16a on February 18, 2018, 10:22:45 PM
The hammer debounce should be the same as the at44 long.
There is a link in here for a pdf parts diagram
https://spares.bagnallandkirkwood.co.uk/hatsan/hatsan-bullboss/
Title: Re: Bullboss hammer bounce
Post by: rgb1 on February 19, 2018, 06:18:33 AM
Quote from: redlined_b16a on February 18, 2018, 10:22:45 PM

There is a link in here for a pdf parts diagram
https://spares.bagnallandkirkwood.co.uk/hatsan/hatsan-bullboss/ (https://spares.bagnallandkirkwood.co.uk/hatsan/hatsan-bullboss/)

There' s no parts list.
Title: Re: Bullboss hammer bounce
Post by: redlined_b16a on February 19, 2018, 10:03:05 AM
Click the work "here"
Title: Re: Bullboss hammer bounce
Post by: rgb1 on February 19, 2018, 10:23:21 AM
Quote from: redlined_b16a on February 19, 2018, 10:03:05 AM
Click the work "here"

Yes, I had already downloaded the pdf. But it has
pics only.......no parts list.
Title: Re: Bullboss hammer bounce
Post by: Hobbyman2007 on February 19, 2018, 02:16:33 PM
Is it possible that you installed it upside down ? I've done in myself and notice only after going through way more air than normal.
Title: Re: Bullboss hammer bounce
Post by: Rocko on February 19, 2018, 02:30:39 PM
You can see it from the left side of the breech, just under the side plate that covers the mag. advance levers. There is a gap where you see it move up & down as you pull back on the cocking lever.