Giessele hi speed national match problem

[us820]

I put one in with match springs and set up as per manual.Feels awesome but on bench if I hold the trigger after pulling it and cycle the bolt,the hammer will fall when I let the trigger go.What setting am I looking at adjusting to fix this?

 

[Primus]

So it fails a function check? Are you sure trigger spring is not upside down?

 

[tadawson]

As I recall, I think that would be due to the sear engagement being set too lpw, assuming it is assembled correctly.
(I have a couple of HighSpeeds with the DMR spring set, so have used them . . )

 

[Primus]

Yea I have only used the dmr versions but I never fucked with adjustments. No reason to.

 

[Backcountryguy]

Watch Geisseles videos on YouTube about the trigger. He’ll let you know which screw you need to tighten.

 

[NukeMMC]

Yep, sounds like you need to adjust the sear engagement screw (5/64" allen) inward as it may be contacting the "bridge" and preventing the aux sear/disconnector from engaging the outer hook on the hammer sufficiently to prevent hammer-fall.
When in doubt, call Geissele at 610-272-2060.

 

[Bigjake83]

Yep, sounds like you need to adjust the sear engagement screw (5/64" allen) inward as it may be contacting the "bridge" and preventing the aux sear/disconnector from engaging the outer hook on the hammer sufficiently to prevent hammer-fall.
When in doubt, call Geissele at 610-272-2060.

Exactly this...

Your sear engagement screw is adjusted too far out.

 

[tadawson]

Geissele, as I recall, is pretty adamant that you need to set/check all adjustments on an install. Variances in tolerances in lowers can result in issues such as you describe if you don't.

 

[lennyo3034]

Geissele, as I recall, is pretty adamant that you need to set/check all adjustments on an install. Variances in tolerances in lowers can result in issues such as you describe if you don't.

This right here.

I installed one on my MATEN and it felt great so I didn’t bother going through the process. Was shooting a match when I completely lost the second stage, it just fired while pulling through the first.

Called Geissele and they said to go through the process. When I did so, I found out my sear adjustment was way too close to the break point and recoil was enough to drop it. I adjusted it to a 1/4 turn from break as recommended and it was perfect for the rest of the season.

Seems like a different failure mode from what the OP is getting, but for me it was definitely sear engagement.

 

[lord of war619]

I Just Picked up a Geissele SSP trigger and it does the same thing on function test, I havent taken to the range yet but it i hold the trigger cycle it and slowly attemt to reset the trigger it drops the hammer, havent called Geissele yet or taken it out, its basically a binary, I know the ssp has a immediate wall and 3 pound pull, this is my first single stage geissele so I dont know if i should shoot it or not

 

[us820]

Just an update-reset everything by the book and youtube video.Still was failing.I played with adding more sear overlap and just experimented slowly with the dis-connector and seemed to find the sweet spot.It's working perfect and is bench testing safe.Find out this weekend.