Dillon Precision RL 550B - Manual (Page 9)

the left side of the main shaft, Fig. 10. This will keep the
shellplate from tightening as you use the machine. This
screw must be loosened when changing calibers, something
that is often forgotten as it’s out of sight.
In your caliber conversion box, you will find three brass
locator buttons. These simply drop into the three remaining
holes in the platform,
Fig. 9. These “buttons” hold the cases
securely in place while you are reloading, but by removing
them, allow you to take out a troublesome case, should that
occur in your reloading process.
How To Change Primer Size
Your RL 550B has been shipped to you with the primer
system installed and correctly adjusted to feed large primers.
If the caliber you have selected to start with requires small
primers, you must change to the small primer slide bar.
Observe carefully how the factory-adjusted bar fits, Fig.
11. Raise and lower the platform and notice the alignment of
the primer seating cup (*#13824) as it enters the platform.
This adjustment is made by turning the cap screw (#14037)
on the primer feed body, Fig. 12. Now remove the two
screws from beneath the frame under the primer feed body,
Fig. 13. Unhook the spring and remove the primer slide. To
replace, reverse this procedure.
The operating rod (#13869) must be installed between
the two white rollers before operating the primer slide. Refer
to Fig. 12 for the proper placement of the rod. Unscrew the
knurled cap (#13957) and remove the large primer magazine
and replace with the small primer magazine tube, Fig. 14;
the plastic tip should look like the one you just took out.
Replace the knurled cap.
Wait until you’ve finished assembly before actually
placing primers in the magazine.
You will notice that the primer magazine tube tips are
different colors and have an indexing ridge on the tip. The
magazine tips and the primer pick-up tube tips are color
coded to help identify their size, see page 13 for more
information. The indexing ridge is to help you place the
magazine in its proper position in the primer feed body.
* Indicates a caliber specific part. See the caliber conversion
chart on page 16 for the caliber you are loading for.
Fig. 11 - This is the proper alignment of the operating rod
and the position of the primer slide fully forward with the
primer seating cup in the lowered platform.
Fig. 12 - The operating rod has moved the primer slide
into the primer feed body where it will automatically pick
up a primer.
Fig. 13 - Removing the primer feed body to change primer
slides. Caution do not over tighten these bolts (#14014).
9
This set screw (#13961) adjusts
the outward travel of the primer
slide to align the primer seating
cup with the primer magazine.
Fig. 14 - The machine comes with two primer pickup tubes
(#20060 large, #20059 small) and two primer magazine tubes
(#22031 large, #22030 small). They are color coded for easier
identification. See page 13 for color coding information. The
large ones should be used together and the small ones should
be used together.
RL 550B, May 2007 5/17/07 2:21 PM Page 9