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Originally Posted by Warthaug
Fish Tale.
In your instructions you mention that the stiffness of the trigger pull can be adjusted by altering the angle of the trigger surface. I need to make this change (it's way too stiff, I almost need two hands to pull), but am unsure exactly what you mean. Do you mean:
a) the surface is filed to alter it's angle?
b) the pivot point is moved forwards or backwards on the gun to angle the whole trigger?
c) the length of the pushrod is adjusted to alter the angle of the whole trigger?
d) something I'm missing entierly?
Thanx
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a) the surface is filed to alter it's angle
If the trigger you made works on the same principle as the the one shown above then the problem your having is probably caused by the profile of the trigger face being slightly off.
With a spear loaded (NO bands or tension) slowly pull the trigger to the firing position while examining the movements of the mechanism from the side. You will probably see the seer move up towards the spear if the profile of your trigger face is lifting the seer. That's very bad. That's what causes your trigger to lock up. It's like trying to open a door that's been wedged shut with a door stop. It's much easier to see what's going on in your mechanism if you take the cap nut off the end of the seer bolt before you do this.
When the trigger face profile is correct the seer will never be lifted upwards and into the trigger notch in the spear as the trigger is moved to the firing position. The trigger will fire the spear when the seer drops off the face of the trigger and falls behind the trigger. Another thing to mention: A good smooth surface finish on the trigger face will minimize wear, make the trigger pull easier, and help the trigger feel the same every time you fire it.
The only other possibility I can think of would be that the leverage of your trigger has been reversed by having the trigger's pivot pin hole closer to the pushrod connection point than to the trigger face end of the trigger. I doubt that's it.
I hope that helps. Let us know what you find.
