650 Problem I can't fix

[Jaxshooter]

I have been loading on Dillon presses for years and have never had a problem I could not fix with the help of Dillon reps. This one has got me stumped.

Out of no where my 650 primer seating punch and shell plate got out of time. I have replaced all associated parts as suggested by Dillon. I have tried everything they suggested from sanding the primer cam to using thier alignment tool on the primer seating punch while adjusting the indexer block. I have also rebuilt the primer system. I know this is vague but if you ever had this problem you know what I mean. I am just before sending the machine back to Dillon but I hate for it to beat me. Any help will be appreciated.

[JThompson]

I have been loading on Dillon presses for years and have never had a problem I could not fix with the help of Dillon reps. This one has got me stumped.

Out of no where my 650 primer seating punch and shell plate got out of time. I have replaced all associated parts as suggested by Dillon. I have tried everything they suggested from sanding the primer cam to using thier alignment tool on the primer seating punch while adjusting the indexer block. I have also rebuilt the primer system. I know this is vague but if you ever had this problem you know what I mean. I am just before sending the machine back to Dillon but I hate for it to beat me. Any help will be appreciated.

jAX,

i KNOW YOU DON'T WANT TO HEAR IT, BUT BOX IT AND SHIP IT BACK TO dILLON. Give them a week or two and you will have it back good as....

[Intel6]

I have had that problem and it is basically comes down to a dirty priming system. The priming disc advancing arm actually advances the priming disc past the detent ball and the disc then slightly reverses and snaps back into place set by the detent ball. When the priming system gets dirty the disc drags and doesn't always snap back into proper position. The idea of tuning the primer advancing block (black plastic ramp on the frame of the machine) is to cut it down so it advanced the disc into the detent and not past it so it doesn't have to snap back into place.

I discovered this because when I could feel the primer not aligned I pushed on the exposed disc and I felt it slightly snap into place and then I could prime the case. I took the priming system out and cleaned it well with brake cleaner and I stoipped having problems until it got dirty again.

I also found that after a while the priming disc was showing signs of abrasion from the dirt and the chamfer on the priming holes were getting peened over which I thought might contribute to the detent ball not snapping in a well as it could. I got a new priming disc the last time I called Dillon and that helped also. I have noticed the aluminum areas beneath the shellplate are getting worn by the priming system also. I have had this press for 14+ years so I guess I can't complain. I need to find a time when I can bring it up to Dillon and have it looked at.

Neal in AZ

[Jaxshooter]

It is not a dirty primer system. Everything has been taken apart and cleaned and inspected. No burrs etc. All springs detent ball etc replaced..

Thanks for the replies. Boxing it up and sending it back may be the best thing for the machine and my sanity.

Merry Christmas to all.

[dillon]

Jax,

Sounds like it is time to send your 650 to the Dillon Chiropractic Center and Day Spa for some R&R

[anm2_man]

Jax

I would be interested in knowing if wear is the problem. ie: how rounds have you reloaded with that machine ? The only problem I've had after about 45k rounds is the "Case insert slide" wore out.

[Jaxshooter]

I have loaded somewhere around 40,000 rounds. I have not touched the machine in 4 or 5 days. I am going to give it one more try tomorrow. If it doesn't work this time it is going back to Dillon. If anyone has any suggestions let me know.

[fastshooter03]

For small alignment issuesI run my 650 priming system slightly loose just enough so it can self align to the cases.

Helped me out a bunch.

For a large alignment issues like yours I wonder if the base plate under the shellplate moved?

I have never played with that part so I have no Idea how far it can move.

Nick