Dillon 750 Issue - Primers inconsistently being picked up

[Popcorn Kelly]

Recently my 750 started not picking up primers at the top of the stroke consistently (handle all the way down with brass lifted to the dies), sometimes failing 50% of the time.  Other times it works a bit better, but not perfectly like it has for the past 5 years. 

I find that if I grip the rigged edge and give it a gentle pull at the end of the primer bar when it is at the top of the stroke where the primer should drop, a primer drops without fail.  The bar itself pulls back maybe a millimeter. 

I can see the black cover that is pushed out from the stainless-steel block pushed out just a bit more when I pull on the bar.   

I’ve tried to see what adjustment I should make, but nothing seems obvious and I'm hesitant to just start changing things.  For example, it seems to me if I were to bend the rod just to the right of the plastic guide in the image it would exert more rearward pressure on the primer bar, moving it back just a bit further.  Not sure that's a good idea, though.  I don't want to make it worse.    

Thoughts/suggestions? 

[Slow Poke]

Try cleaning the bar and the slide area, I had a similar issue i used a lock cleaner and lubricant called houdini got a lot of dirt out that I didn't see.

[Oklahoma Dee]

Its very easy to call Dillon and ask for assistance.

[Nevada Gambler, SASS #10225]

Hello,

I have found that I need to pull out the white insert that holds primers up.

clean and lube.  About every 500 rounds.

Hope to shoot with you again.

Nevada Gambler and family

[The Original Lumpy Gritz]

Lube the slide with silicone spray. 

Make sure the primer stand bolts are tight.

[wyliefoxEsquire]

Read page 48 in the current manual.

Like above, check the primer feed stop pin and the blue tip on the tube

[Eyesa Horg]

21 minutes ago, wyliefoxEsquire said:

and the blue tip on the tube

I don't have a 750 but was wondering if they had a tip like the SDB.

If cracked it may or may not work. I keep spares! Since I readjusted the primer punch per the book, I haven't cracked a tip in years and thousands of rounds.

[Popcorn Kelly]

Thanks for all the advice.  I've cleaned and lubed as suggested, which was overdue and a good thing to do.  However, it didn't really help.  I think I found the issue.  The upper portion of the rod whose lower portion is in the image, also has a crook in it.  At that point it runs through another plastic pulley-type guide.  As I was looking at it, I found the crook to be slightly off in relation to the pulley.  I surmised that if I lowered the block which attaches the upper end of the rod to the primer shaft it would force the lower to move the primer slide back ever so slightly.  I lowered the block by about 1/4" and viola, the primer slide is now moving back to where my little manual pulls described in my original post triggered the primer drop.  Actually, I think this is the way it's suppose to work.  Not sure if I had moved the upper block at some point or if it just moved over these past 5 years or so, but things seem to be working (and are a bit cleaner as well).  Thanks for all the comments.  

 

[SouthwestShooter]

6 hours ago, Oklahoma Dee said:

Its very easy to call Dillon and ask for assistance.

Best customer service in the world. 

[Cusz M. Dutch SASS Life 55326]

Had to clean the primer tubes on my 550 when similar problems happened.  

[Rye Miles #13621]

20 hours ago, Oklahoma Dee said:

Its very easy to call Dillon and ask for assistance.

THIS ^^^^^^^^^^^^^^^^^^^

[Whiskey Eye]

14 hours ago, SouthwestShooter said:

Best customer service in the world. 

When you buy a Dillon you are paying for the customer service. Make use of it.

[Griff]

Here is the unit similar to what I have on my 550C & 550B to better support the primer slide:  Dillon 750 Primer Slide Support.

[Shawnee Hills]

The leaf spring appears to be a bit loose as well.  That’s easily fixed by tightening the bolt but be careful not to strip the threads.  That block is aluminum, not stainless. 

[Von Dutch, SASS # 7995]

23 hours ago, The Original Lumpy Gritz said:

Lube the slide with silicone spray. 

Make sure the primer stand bolts are tight.

wd 40 makes a great dry silicone spray that's what I use its dry, so dust and dirt don't collect on the parts. V.D. 

[The Original Lumpy Gritz]

59 minutes ago, Von Dutch, SASS # 7995 said:

wd 40 makes a great dry silicone spray that's what I use its dry, so dust and dirt don't collect on the parts. V.D. 

TNX, I'll ck it out! 👍