Make sure Priming Seating Punch Assembly is fully bottomed out before tightening screw (13996): Measured from bottom of Primer Slide (13920) to top of seated Primer Seating Cup (13284/5), dimension should be between 1.125 - 1.220 inches.

Be sure both screws (14530) that tighten Roller Bracket Shell Platform (14280) from bottom (to the Shellplate Platform) are tight!.

Angle of Primer Slide Operating Rod (13869) - Release rod from rollers and swivel it 180º so it's pointing straight up - it should be parallel with the Primer Housing Shield, or maybe outward 'a little' it should not be 'inward' at all.At rest primer slide adjustment: Set so that one primer, dropped down the tube, goes all the way into the Primer Seating Cup, 10 times in a row.Wipe off Primer Slide with solvent or alcohol.Thoroughly polish frame, wherever priming slide touches it, with green Scotch Brite.My standard littering on this topic: 550 Priming Assembly Adjustment Notes: It's obvious what part needs a little extra tension. So clean often enough and do NOT oil it.įinally, I used a vice and added a little more tension to that rod. If the black piece is marred up call Dillon and get a new oneįourth, Make sure the activator piece when flipped straight up is not leaning to the left at all but either straight up or out just a little.įifth. DO NOT do it to the black piece that assemble rides on. Polish just the slider with some very very fine sandpaper or a scotch brite pad. I forget the exact number, about 2 dimes of height. It will work 100%.įirst, make sure the block that holds the lever is just slightly above the press frame. If it isn't working then you need to give it some attention. That is basically the only part of the press that I watch while running it since everything else has proven to be 100%. The suggestions by Dillon to clean everything and maybe polish a little with a green 3m pad didnt help either. I have the same problem with my small primer setup on my 550b.

Whidden click ring dillon 550