Gamo Shadow and GRT Trigger UPDATE.

[Black Mamba]

My buddy dropped off his shadow last week and was complaining of a very heavy trigger pull. I took her apart and checked the trigger assembly out and can see nothing out of the ordinary but it does pull way harder than it should. It also seems to be lacking a second stage feel even though I carefully followed the GRT set up instructions.

As I say, I cannot see anything wrong with the gun but have not been able to solve the heavy trigger pull. Can anyone suggest what I might want to look at or adjust? I have already adjusted BOTH screws several times and cannot get a real second stage OR a regular GRT trigger pull.

Thanks in advance folks.

I finally got around to opening up my buddies Gamo this weekend and found that it was the trigger component housing that was the issue. It was bent inward and THAT was what was making things hang up. How did it get that way? I truly have no idea. It just took some careful prying and a little reshaping of the lips on the end and it was like the old setup he loved so dearly. I felt rather embarrassed when I realized that it was only a 20 minute fix.

Ah, well. Live and learn.

[Gene_SC]

Greg, sometimes the fat pin will drag in the slot on side of trigger housing.. Also you may want to check each inside edge of trigger housing to make sure there are no burrs or high spots. The trigger blade should move very easily and you should be able to adjust trigger to feel when second stage starts.  You can check out CDT info here: http://charliedatuna.com/airgun_docs/GRT-III%20trigger%20blade%20instructions.pdf

[CharlieDaTuna]

Greg.... to my knowledge, with the trigger installed properly as delivered, there has never ever been a case where the trigger blade itself  has been at fault causing a hard trigger pull as you describe it. It  is impossible for the trigger blade itself to cause a heavy trigger pull. It simply rotates on the pivot pin. There does have to be something wrong somewhere with the trigger mech itself. There is either friction or resistance caused by contact and drag, perhaps a bent/distorted trigger housing (usually only found in some Chinese clones but has been seen in a couple of Gamo's), the nose of the trigger coming in contact with the safety switch as it is pulled because the switch is bent out of the correct position, possibly a worn or oversized pivot pin or something. Something is interfering with or interrupting the travel  and if you have an  understanding of the trigger assembly, it should be pretty easy to find and resolve the problem.

 Also, if you have a hard trigger pull as you state, you would of course not feel the second stage. Until you resolve the trigger pull issue, you will never be able to properly adjust the trigger. Once that part is resolved, you will probably then need to adjust the trigger from scratch (since attempts were made to adjust it) following the instructions.

Be sure to let us all know what the problem is when you find it.

If all else fails, you may want to consider sending the gun to  Gene or I  to repair it.

[agg]

Did you remember to take out the old adjustment screw?

[Black Mamba]

Thank for the references and suggestions fellas.

I'll be looking into it.

I didn't have to take it out agg, it was taken out by the owner when the trigger was originally installed.  Worked great until recently.

[brokenarrowjbe]

Results of trigger investigation??? John

[Black Mamba]

Sorry John, I've just been to busy around here to get to it.  I'm gonna make time this weekend to get it figured out and I'll report back then.

[Black Mamba]

Updated.

[North Pack]

I had a similar problem with a Phantom after installing a GRT-III trigger - it wasn't the new trigger. The stamped metal (wrap around) bracket holding the trigger, and pins of course, - was stamped out at a "slight angle". This resulted in the trigger pushing against the stock. Two easy ways around this, - straighten out the trigger bracket, - or file away a small section of the stock in that area. I chose option II.