[pump]

how to tune the AT

First things first the pump rod screw(PRS) hole needs to be in the right position for the lever, so the PRS never hits the top of the levers slot, it could snap the PRS , heres hows to set that:
the lever should be in the most forward position while the bolt is forward
OR!
it should be in the most rearward position while the backblock is all the way back

in either case it will prevent the lever slot from reaching its maximum range of motion, which could snap the pump rod screw


Adjusting the cam differs from the frame,

for a Slider Frame the Cam should be then loosened in and the frame and then pull the trigger, this will bottom out the cam, and with the back block all the way forward snugly tighten the cam to the lever, then take out the lever....make sure the cam doesnt spin, and using a vice tighten it securly dont over tighten you can break the screw(i tried to test cam thread strength and with full force i broke the head off of the screw)

so when your done if you pull the trigger the lever should be aligned with the pump rod hole(PRH) or a tad forward of it, if its is behind the PRH you will get a premature release of the sear when ATing and no release when single shotting.

but again being mindful of giving the slot a tad of clearance when its all the way forward so not to bind it


SLIDER LUG ADJUSTMENT
with your PRH and lever lined up, and the PRS not screwed into the PRH, hold the trigger down and cock the gun, if you get the sear catching then you need to raise your lug until it doesnt, if it does....take out the cam from the frame and pull the trigger to release it....raise the lug until it doesnt catch

then you need to bolt everything together and fine tune your hammer lug to release about 1/16th before the backblock contacts the body, or a tad more....as much are your comfortable with, because it will never release consistently everytime due to gun tolerances



with Dye frames the Cam & Lever adjustment is different because the cam doesnt need to bottom out all the way on the trigger because of the mechanical advantage a hinge gives you. and if you did the lug will bottom out on the body.......and thats bad


so what i do is spin the cam around until it fires...first noting the cam angle where it fired then loosening the cam and line up the lever so its full forward, tighten the cam then try again. Repeat to check angle, and then screw in the PRS and fine tune with the lug