apologies if this is covered somewhere but I cant find it, seems there are at least 2 different methods for tuning the impacts and i'm wondering what most people use
1, what I'll call bottom up (start hammer and reg low and go up):
reg set low
hammer set low
valve open around 4
increase hammer till no increase in fps then stop, increase reg and start increasing hammer again till no increase in fps- continue till you hit target fps. then close the valve to the point it drops fps about 5 fps or so.
2, top down (hammer full on and then reduce)
reg set low
hammer set to max
valve wide open
increase reg pressure till your about 20 fps above target fps. then reduce hammer spring till fps drops by about 10 fps (you are at the knee). then close valve till fps drops another 10 and now you are right on target
I always use top down mainly because it seems easier adjusting 1 thing at a time but wondering if I should try bottom up?
I am also seen people fine tune fps with hammer and some with the valve - but maybe i'll start another thread on that.....
1, what I'll call bottom up (start hammer and reg low and go up):
reg set low
hammer set low
valve open around 4
increase hammer till no increase in fps then stop, increase reg and start increasing hammer again till no increase in fps- continue till you hit target fps. then close the valve to the point it drops fps about 5 fps or so.
2, top down (hammer full on and then reduce)
reg set low
hammer set to max
valve wide open
increase reg pressure till your about 20 fps above target fps. then reduce hammer spring till fps drops by about 10 fps (you are at the knee). then close valve till fps drops another 10 and now you are right on target
I always use top down mainly because it seems easier adjusting 1 thing at a time but wondering if I should try bottom up?
I am also seen people fine tune fps with hammer and some with the valve - but maybe i'll start another thread on that.....