Flinter trigger problem

guninhand

guninhand

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Hi folks,

When I set the trigger on my Lyman Great Plains flinter and pull it, the hammer doesn't go down. I have to pull the set trigger with a lot more weight to get the hammer to strike. The gun has been barely used so I think it might just be an adjustment problem, but have no idea of what to adjust. The trigger group has 3 adjusting screws, one between the triggers and one just behind the rear one, and one further back holding down the spring. Suggestions?
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I dont know much about the lyman, but you could try ajusting that set trigger screw there, between the triggers.....;)

If that doesnt work you may want to contact lyman, may be a warranty issue??
 
If I read your post correctly, the front trigger will fire the gun if it is unset. One possibility is that the screw at the back of the triggers is not compressing the spring enough to give enough snap to the "flipper upper" part of the set trigger. The second possibility is that the triggers are not deep enough in the recess and the flipper upper piece is at the end of its travel and end of its energy. Final possibility is that the sear itself is rubbing on the stock, making it difficult to release. That third possibilty seems unlikely to me because it would also make it difficult to keep the gun cocked because the sear would not spring readily into the notches on the tumbler.

cheers mooncoon
 
Check first that the sear arm is not rubbing on the wood when the lock is screwed in tight: put some lipstick or black on the end of the arm and see if it marks on the wood when the lock is installed. The large rear screw at the back compresses the heavy spring that causes the rear trigger plate to jump up and bump the sear arm to release the tumbler and let the hammer fall. The little screw protruding down between the triggers controls the amount of engagement of the front "hair" trigger so should not be your problem. To adjust it, set the rear trigger then slowly screw in the little screw until the front trigger releases, then back the screw off one full turn. I think the third screw controls the distance the rear trigger plate travels from the set position to where it hits the sear arm when the front trigger is pulled - there should be about 1/16" or so of free jump.
Since you can actually make the hammer fall by pulling hard on the front trigger, I think you probably have the sear rubbing on wood or you need more tension on the heavy spring that pops up the rear trigger to release the sear. Both are a simple fix. Good luck.
 
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The Lyman should have a fly on the sear to prevent this from happening with the set trigger. If so, it could be possible that the fly is stuck or missing.

Regards,
Joel
 
joelvca said:
The Lyman should have a fly on the sear to prevent this from happening with the set trigger. If so, it could be possible that the fly is stuck or missing.l
Click to expand...

If the fly is missing or malfunctioning, the hammer will stop at the half #### position, when using the set trigger. That does not seem to be the case in the original post

cheers mooncoon
 
mooncoon said:
If the fly is missing or malfunctioning, the hammer will stop at the half #### position, when using the set trigger. That does not seem to be the case in the original post

cheers mooncoon
Click to expand...

Ahh... I misread the original. I probably shouldn't be on the web late at night.

Regards,
Joel
 
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