78Staff Posted January 19, 2016 Share Posted January 19, 2016 So I ordered the extended bearing plate/ball bearing upgrade deal that so many 550 users have been raving about, and installed it this weekend. The instructions stated to push the plate flush up against the frame, but on my press when I do that I get a slight rub from the pin the spring catches on when the bar slides back into position. I had to actually move the plate slightly out at an angle to prevent the pin from rubbing. Everything appears to be working fine, but not sure if I just got a plate that might out of spec/alignment, or if my press, being it's an older model, might not line up the same as the newer models, or other issue? The press runs and primes with no issue, so may be a non-issue - just wanted to be sure I'm not setting myself up for some other issue later... Thanks... Link to comment Share on other sites More sharing options...
Youngeyes Posted January 19, 2016 Share Posted January 19, 2016 As long as the primer bar runs smoothly, you're good to go. Link to comment Share on other sites More sharing options...
Walnut Posted January 19, 2016 Share Posted January 19, 2016 So I ordered the extended bearing plate/ball bearing upgrade deal that so many 550 users have been raving about, and installed it this weekend. The instructions stated to push the plate flush up against the frame, but on my press when I do that I get a slight rub from the pin the spring catches on when the bar slides back into position. I had to actually move the plate slightly out at an angle to prevent the pin from rubbing. Everything appears to be working fine, but not sure if I just got a plate that might out of spec/alignment, or if my press, being it's an older model, might not line up the same as the newer models, or other issue? The press runs and primes with no issue, so may be a non-issue - just wanted to be sure I'm not setting myself up for some other issue later... Thanks... I have sent you an personal message. Thank you, Jeff Link to comment Share on other sites More sharing options...
aug1911 Posted January 19, 2016 Share Posted January 19, 2016 (edited) I installed this item and had nothing but problems with it. It made the primer slide so jerky that the primers would bounce out before reaching the shell plate. It was with all new primer slides and primer housings. Bottom line I really think it is a very good product! My machine just didn't seem to like it. Edited January 19, 2016 by aug1911 Link to comment Share on other sites More sharing options...
BaggerJoe Posted January 19, 2016 Share Posted January 19, 2016 I bought one of the 1st generation models of the plate and didn't like the finish on it too much. I wet sanded it with a fine grit sandpaper and used some metal polish on it till it was a mirror finish. I also polished up the bottom of the primer slide and installed it using powdered graphite. It runs silky smooth and I love it! Never a problem. Link to comment Share on other sites More sharing options...
SAFuchs Posted January 19, 2016 Share Posted January 19, 2016 I have an original 550 before the "B" designation and the unit fits and works very nicely. Are you talking the return spring under the platform? Link to comment Share on other sites More sharing options...
Walnut Posted January 19, 2016 Share Posted January 19, 2016 I installed this item and had nothing but problems with it. It made the primer slide so jerky that the primers would bounce out before reaching the shell plate. It was with all new primer slides and primer housings. Bottom line I really think it is a very good product! My machine just didn't seem to like it. I totally hate when my 550 pukes primers too. If my Op Rod Bracket is slightly off, it goes stupid, so I have to make sure that it is parallel with the primer slide as it moves back and forth. Link to comment Share on other sites More sharing options...
9x45 Posted January 19, 2016 Share Posted January 19, 2016 Same as SA, original 550 and no issues, other than the flapper pin which I replaced. Link to comment Share on other sites More sharing options...
BaggerJoe Posted January 19, 2016 Share Posted January 19, 2016 "Same as SA, original 550 and no issues, other than the flapper pin which I replaced" That should be the FIRST modification made to the 550 out of the box! Link to comment Share on other sites More sharing options...
78Staff Posted January 20, 2016 Author Share Posted January 20, 2016 Jeff contacted me via PM, I'm going to send him some more pics of the plate in normal and tilted positions, etc so he can see exactly what I'm referring to. Will update the thread when we have more info... Pretty impressed that he contact me directly so quickly. . Thanks,Mark Link to comment Share on other sites More sharing options...
tspot100 Posted January 27, 2016 Share Posted January 27, 2016 i also had the primer jerk, popping out issue with my 550b. i called dillon and asked about this a few yrs ago and again recently. (longer primer bearing upgrade). he adamantly told me that this upgrade does not help the problem. i have followed every trick and adjustment dillon recommended with little improvement until i installed a new plate dillon had sent me years earlier. smooth operation again. i am going to make a longer plate and give it a shot. Link to comment Share on other sites More sharing options...
78Staff Posted January 28, 2016 Author Share Posted January 28, 2016 Just to update the thread, talked to (well, emailed back and forth) with Jeff, took it all down once more and put it back together, and was able to get everything aligned normally. Hard to say for sure but it likely just plain old operator error, in that I think I must have had the bearing to tight up against the bar... Link to comment Share on other sites More sharing options...
Bob DuBois Posted January 28, 2016 Share Posted January 28, 2016 My 550 is thirty years old, the extended primer slide with bearing is one of the neatest products I've seen for it. Picture shows it set to tight at the bearing causing a misalignment. The Primer flap, went by ace and bought a bag of carter pins that fit, made sure there was correct clearance and epoxied a penny to the part that moves, makes it easier to open. Use powdered graphite as a lube on the slide, get it in the Lock Dept at HW store. Link to comment Share on other sites More sharing options...
dhollis51 Posted February 3, 2016 Share Posted February 3, 2016 where do you get these at??? Link to comment Share on other sites More sharing options...
Nebwake Posted February 3, 2016 Share Posted February 3, 2016 The best thing I did, was plate sand and polish the snot out off all mating parts and mine runs perfect. Link to comment Share on other sites More sharing options...
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