I have been asked to sort out a tru ball ST4 It is on a hair trigger to the point of being dangerous.
I have taken it apart and figured out how it works. The parts all seem to be in good enough order to work properly.
I am able to adjust the trigger travel screw. If I screw it in until it goes off without the trigger being touched, that seems fine. If I back out that screw it becomes a hair trigger and backing it out even further, by the smallest amount , means it does not release at all. In fact it seems that the trigger is totally locked at that point as if it has reached the end of its possible travel.
The other thing I notice is that the trigger has very little travel whether it has just been released or is set for drawing back the bowstring. When the release aid was opened, I was able to move the trigger by about 3mm at the thumb peg.Once assembled all that travel is lost!!
The first owner had glued in the sensitivity screw and I am unable to adjust that.But I suspect that just adjusts how light or heavy the trigger feels.
Has anyone ever had one of these and experienced this problem?
Thanks
I have taken it apart and figured out how it works. The parts all seem to be in good enough order to work properly.
I am able to adjust the trigger travel screw. If I screw it in until it goes off without the trigger being touched, that seems fine. If I back out that screw it becomes a hair trigger and backing it out even further, by the smallest amount , means it does not release at all. In fact it seems that the trigger is totally locked at that point as if it has reached the end of its possible travel.
The other thing I notice is that the trigger has very little travel whether it has just been released or is set for drawing back the bowstring. When the release aid was opened, I was able to move the trigger by about 3mm at the thumb peg.Once assembled all that travel is lost!!
The first owner had glued in the sensitivity screw and I am unable to adjust that.But I suspect that just adjusts how light or heavy the trigger feels.
Has anyone ever had one of these and experienced this problem?
Thanks