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Adjusting the Powder Charge
You will notice an adjusting bolt on the back of the powder bar (see Figure 21). Turning the bolt counter-clockwise reduces your powder charge, clockwise increases the charge. Your machine comes with two powder bars – one large and one small.

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Figure 21  This photo shows the small powder bar in its fully open position. (The primer system has been removed for clarity.)

  Rule of thumb: Use the large bar whenever possible. These bars are easily changed (see Figure 22.)  
Use a reloading manual to determine how much powder you need for a particular

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Figure 22   Changing powder bars is a snap. Disconnect the springs and, using an Allen wrench, loosen the bellcrank screw (#13904) sufficiently to allow you to remove the powder bar. Insert the new powder bar and reverse this procedure.

load and an accurate powder scale to determine the weight. A high quality precision powder scale is available from Dillon. You should now fill the powder measure with your chosen powder. Place an empty case under the measure and operate the machine's handle. Then, by trial and error adjustments, determine the correct weight of your powder charge. You are now ready to fill the primer magazine.

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Primer Early Warning System Installation
Remove the follower rod (#13707) from the assembly bag and set it aside. Install the battery and the battery cover (#13857) in the system’s main body.   Slide the Early Warning System assembly down over the knurled cap on your primer magazine (#13957) and lightly tighten the clamp screw.

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(See item #20302 on the RL 550B Automatic Primer System Schematic for assistance.)

Primer Magazine
You will notice that the primer magazines and primer pick-up tubes have different colored tips. They have been color coded to help you identify size more easily.
 
The color code is as follows:
Blue Small Primer Magazine Orifice
Red Large Primer Magazine Orifice
Yellow Small Primer Pick-Up Tube
Green Large Primer Pick-Up Tube

  Select the proper size pick-up tube and fill it by placing the plastic expandable tip over loose primers and pressing down. The shiny sides of the primers need to be facing up (see Figure 23).

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Figure 23  Use of the primer pickup tube and the Dillon Primer flip tray.

  This is most easily accomplished by using a primer flip tray, which will arrange them all for you (see Figure 23). A quality cast metal flip tray is available from Dillon and is a better choice than the smaller plastic trays which are difficult to use and have a tendency to warp.

  Once you’ve filled the pick-up tube, make sure the little retaining clip is in place at the top of the tube. Pivot the switch lever (#13864) away from the Early Warning System housing. Invert the pick-up tube over the knurled cap (#13957) of the primer magazine (see Figure 24). You will notice the cap has a bevel to help you funnel the primers in. Hold the tube in place, pull the retaining clip and allow the primers to drop into the magazine. Pivot the switch lever back over the Early Warning System housing. Gently slide the follower rod down into the primer magazine tube until the follower rod touches the primers.

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Figure 24  Drop the primers into the primer magazine.

  When you are nearly out of primers (about three left) the follower rod (#13707) will activate the buzzer.
  A word of caution: primers are easily detonated, sometimes by a remarkably light blow. Treat them as if they are as fragile as eggs. Never force them.

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Table of Contents
Introduction
Don't Suffer in Silence
Mounting the RL550B to Your Bench
Safety Points to Know Before You Begin
To Begin Loading
  Page 1
  Page 2
What Primer Size?
The Toolhead
Choose Your Dies
Carbide Dies?
Setting Your Pistol Dies
  Page 1
  Page 2
Adjusting the Powder Charge
Primer Early Warning System Installation
Primer Magazine
At Last
Troubleshooting
Remember
Notice
Schematics and Parts Lists
Charts

Dillon Precision Products, Inc.
8009 E. Dillon's Way
Scottsdale, AZ 85260 U.S.A.

Call Toll Free 800-762-3845 or 602-948-8009 ° Fax 602-998-2786
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Last modified: November 29, 1998