brentbarbee
brentbarbee
15 posts
Joined December 2008

Primer Seating

Machine-SDB of unknown age, 2nd owner, probably 20K+ of .45, just guessing though.  Started having light hits but spotted slightly high primers REGULARLY some time ago.  Started worsening.  Chalked it up to gun, then bench, then technique, initially.  Went through check list, gun ran on factory 100% or any round with primer at/below case head.  Inspection of machine-No crack in linkage arms, hex bolts in linkage seem tight, shell plate tight.  I re-tightened/shimmed/braced the bench against the wall and checked again and confirmed it was happening in all brands of cases.  I slowed down operation of machine and started squeezing it with both hands-one on bullet tray-to seat primer.  I went to WW primers from Wolf I had been using for some time.  Seemed to help a lot, got about 98% seated by using my left hand to grab the bullet tray and squeeze it when seating.  Went back to Wolf primers and got 100% high, or nearly so, using a LOT more force than what I used when the machine was newer...two sore hands now.  Went through the FAQ and was going to check seating pin/cup height specs when I saw that the maybe the handle should NOT touch the aluminum frame?  Mine does, even with brass in place.
What is the next move to get back to seating all primers without sore hands?  I KNOW it was not hard to seat them when I first bough the machine, and I was operating the machine much faster. 
TIA. 

 
dillon
Administrator
dillon
3,074 posts
Joined July 2007

RE: Primer Seating

Check the bottom of the handle for hairline cracks between the reinforcing webs. Push forward on the handle, hold it there, then look for the cracks
brentbarbee
brentbarbee
15 posts
Joined December 2008

RE: Primer Seating

Stressed it and checked it with magnifying glass and bright light, no sign of stress cracks in handle/down in ridges at base all the way to the top, checked both sides. 
Removed linkage arms to wipe away grease, checked with light and magnifier, no sign of cracking.  Checked body of press everywhere near leverage of handle, no sign of cracks.  Looks like the handle has been bumping the machine quite a while, judging from the horizontal mark from right beside the primer mechanism.
Happy Thanksgiving, will be here when you get back to try next idea.    
dillon
Administrator
dillon
3,074 posts
Joined July 2007

RE: Primer Seating

Next thing to check is to unscrew the shellplate bolt, look for a crack there just above the threads
brentbarbee
brentbarbee
15 posts
Joined December 2008

RE: Primer Seating

Same thing-light and magnifier, no crack. Plate didn't seem to rock while screwed down. Seems to be a tiny worn area on underside of outside edge of bolt head, but I think it's just relief for the plate. Plate looks fine and both hex heads under the plate are tight.
Left it off for next idea.
brentbarbee
brentbarbee
15 posts
Joined December 2008

RE: Primer Seating

You guys back around yet?  To be clear, no crack in the bolt.  Let me know if I need to call, I just keep thinking this has to be some visible issue that I can fix. The machine evidently has more than 20K on it if that matters for thinking about wearing parts.   
TIA
brentbarbee
brentbarbee
15 posts
Joined December 2008

RE: Primer Seating

Okay, went ahead and called, only a short wait. Most helpful gentleman helped me look a couple of more places for cracks and listened to me rattling the handle and said it sounded like there was too much play between handle pins and link arms...it does seem a lot looser now than when I first got it, now that I think about it. He has a handle in the mail and I'll post here for future use if it solves it. Again, most appreciative.
brentbarbee
brentbarbee
15 posts
Joined December 2008

RE: Primer Seating

No problem, just replying to close this thread out for info.   
While waiting on the handle, I damaged one of the heli-coil type threads in the body of the press where the priming system is attached.  The screw had always been altered and too short, but it never caused a problem before.  My guess is that The screw was just enough to engage the thread and pop out the thread a bit before it had enough purchase to thread.  Contacted Dillon and they confirmed it needed factory help.  Your folks had the machine a little over a week, I think.  The return slip showed MANY major components replaced, including a bearing and shell plate, and priming system.  From talking with the first owner, turns out the machine had many, many, more rounds through it than I thought.  I'm betting it was flat worn out.  It feels a bit more solid now, not a huge difference but it is there.
Just ran some casings through it and it is back to it's old self again, primers going in and I can feel them bottom out.  
I know you guys hear it a lot, but thank you for your work and warranty.  I don't know why anyone would buy any brand other than a Dillon.