Do you have a question about the SL 900 and is the answer not in the manual?
Questions and answers
Cary Fredrick
June 19, 2025
I have a SL900 and can't locate my manual. I know I have is, just can't put my finger on it. The issue is I swear I read the stack height should be 3/8" from top of hull mouth. I mentioned that to a fellow reloader, and now I can't verify same. Many folks have dished crimp issues. I don't. But I can't verify my claim of that stack height as I can't find my manual. I've read completely through the online manual, and don't see this reference. Was this possibly only in older manuals, and is no longer a spec for loading?
Page 1
SL 900, May 2007 5/21/07 11:51 AM Page 1 Dillon SL 900 Instruction Manual May 2007 illon recision Products, Inc. Manufacturers of The World's Finest Loading Equipment...
SL 900, May 2007 5/21/07 11:51 AM Page 10 Toolhead Assembly Part # Description 10184 Crimp Die Spring 10185 Crimp Die Sleeve 14008 13901 11109 12 ga. Crimp Die 11110 12 ga. Seat Plug 12577 1/2-20 Jam Nut 17817 10185...
SL 900, May 2007 5/21/07 11:51 AM Page 12 Primer Feed System Assembly - #19201 Part # Description Part # Description 13773 8-32 Nut 16723 Primer Feed Body 13793 Collar Roller 17132 Primer Drop Tube 13856 1/4 Washer SAE 17134 Primer Bellcrank...
SL 900, May 2007 5/21/07 11:51 AM Page 15 Wad Guide/Swing Arm Finished Shotshell Dimensions Assembly #16802 - 12 gauge shown Here are some dimensions of a typical 12ga. shotshell. Always use a quality dial caliper when measuring your shotshells. Length may vary dependent upon shotshell manufacturer.
• LOADS AND LENGTHS: Avoid maximum loads and General Machine Information pressures at all times. Use only recommended loads Based on our XL 650 machine frame, the SL 900 from manuals and information supplied by reliable comes to you with some great automated features.
5/21/07 11:51 AM Page 17 Fig. 1 - A.) Dillon Bin B.) Shotshell Chute C.) Strong Mounts D.) H.) SL 900 Toolhead and Frame I.) Spent Primer Cup J.) powder Universal Mounting Kit and Hardware needed for Strong Mount measure K.) Roller Handle L.) Hardware for Shot Post and Casefeed installation E.) Shot Container and Post F.) Shot Dispenser Hardware...
Page 18
SL 900, May 2007 5/21/07 11:51 AM Page 18 Fig. 6 Fig. 3 Microswitch 5. Open the casefeeder box. Place the feeder on 2. Lift the machine up and fasten the machine your bench and plug it into a 110v AC outlet (220v for securely to the forward edge of the bench.
Page 19
SL 900, May 2007 5/21/07 11:51 AM Page 19 Fig. 8 Fig. 10 13685 Be sure to secure the small, but important, screw located at the rear of the bowl at the base. This little screw (#13685) secures the entire bowl assembly to the casefeed post (17123).
Page 20
Fig. 15 Fig. 15 10. Next we move to station three where the wad is seated and the shot is dispensed. The Dillon shot dispenser works similar to the powder measure (#17817). The shot dispenser is activated by the hull at this station.
Page 21
Fig. 17 16. Finally, install the roller handle (#22183). Fig. Fig. 18 15. Position the Dillon bin (#17125) on the machine’s right side, then place the shotshell chute (#16672) between the machine and the Dillon bin...
11:51 AM Page 22 Factory Settings The SL 900 shotshell machine has been assembled The powder die has been adjusted to a height so and tested using Winchester AA hulls. A sample is that the powder measure bellcrank can make full included with the machine.
Page 23
SL 900, May 2007 5/21/07 11:51 AM Page 23 Incomplete Stroke Fig. 23A Fig. 23C Fig. 24 16739 16740 Remember: Loosen the bolt set screw before making any adjustments. 13943 16738 Fig. 25 13958 14041 Complete Stroke Fig. 23B the hull and may result in an incomplete stroke of the bellcrank.
Filling the Machine with Components. What’s First? Before you charge ahead and begin tossing Fig. 30 components into your new SL 900 shotshell machine, there is a routine we’d like you to follow. 1. Fill the powder hopper with the powder of your choice.
Page 25
The completed round will fall down the 6. Loosen the bolt set screw (#16740) 1/4 of a shotshell chute (#16672) and land in the Dillon bin turn. Then using a 7/16” wrench, rotate the bolt (#17125). Fig. 36 located on the end of the shot bar (#16738).
Page 26
Fig. 37 5. Get one box of new shotshell primers. Fig. 40 1. Using a Dillon bin (#17125) or box, gather up 6. Slide the cardboard jacket back, exposing only to 80 empty, fired hulls. Fig. 37 half of the first row of primers. Fig. 40 7.
Page 27
SL 900, May 2007 5/21/07 11:51 AM Page 27 handle (#22183) down and then back up to its full aft Fig. 43 position. A hull has been fed into the shellplate. Fig. Fig. 46 10. Lift the plastic primer tray straight off the primers.
Page 28
SL 900, May 2007 5/21/07 11:51 AM Page 28 shellplate at station one. To ensure that you have fully Fig. 51 seated the primer into the hull, it is important to stroke the operating handle to its full aft position.
Changes and Adjustments Fig. 54 Whenever you plan to make some changes or adjustments to your SL 900 machine, it’s important to have all the right tools. Fig. 56 Fig. 56 15. Move the roller handle (#22183) down. The first hull is at the last process.
SL 900, May 2007 5/21/07 11:51 AM Page 31 when it was built and adjusted at the factory. If you We found that when we reloaded Remington hulls have selected a wad that uses a lighter or heavier load and wads, we would need to adjust the starter crimp of shot, you’ll need to readjust the position of the shot...
(#16667) allows you to convert from one hull brand to another hull brand or another caliber in a matter of minutes. Let’s use the following steps to remove and install a toolhead (#16667) on the SL 900 machine. 5. Remove the two toolhead pins (#14008) located 1.
(powder and shot) and you’re ready to go again. Shellplate Removal When you service your SL 900 machine – cleaning, lubing, or switching to another caliber – please follow these steps to remove the shellplate.
SL 900, May 2007 5/21/07 11:51 AM Page 34 some of your ammo and it’s time to change to brand Fig. 75 Q. Let’s explain how to switch powder. 1. Remove the powder bar return rod (#17350) from the machine. Fig. 77 2.
Fig. 80 Fig. 81 The Primer System: The primer feed system on the SL 900 machine is a fully mechanical system. Every complete stroke of the roller handle (#22183) will feed a new shotshell primer into the machine. Fig. 80 Two very important but simple points: #1.
The following is a step by step routine to use for converting your machine to reload other gauges. Refer to your SL 900 reloading manual as needed. 1. Drain the shot via the shot dispenser drain. Hint, use an old coffee can, widemouth water jug or shot bag to catch the shot.
Page 37
SL 900, May 2007 5/21/07 11:51 AM Page 37 5. Return the roller handle to the up position. Fig. 5 6. Use a 1/4" Allen wrench to unscrew the shellplate bolt. Fig. 4 gauge) onto the Station 2 locator. Fig. 5 10.
Page 38
SL 900, May 2007 5/21/07 11:51 AM Page 38 Fig. 7 Fig. 9 12 ga. 28 ga. Casefeed Assembly Conversion (Right-Rear of the Machine) Fig. 10 1. Remove the hulls and the clear casefeed tube from the machine. Fig. 8 Fig.
Page 39
SL 900, May 2007 5/21/07 11:51 AM Page 39 and the powder measure. Fig. 12 4. Realign the shot hopper tube fitting with the shot dispenser. Insert the fitting and the e-clip into the dispenser top. 5. Cycle the roller handle two complete cycles to insure everything is free to move.
Page 40
SL 900, May 2007 5/21/07 11:51 AM Page 40 13. Now that you have determined the powder 20. Once again, move the roller handle down. As charge, move to Station 3 for wad and shot insertion. you return the roller handle to its rest position, you'll see the completed round advance and move out of 14.
The following is a step by step routine to use for converting your machine to reload other gauges. Refer to your SL 900 reloading manual as needed. 1. Drain the shot via the shot dispenser drain. Hint, use an old coffee can, widemouth water jug or shot bag to catch the shot.
Page 42
SL 900, May 2007 5/21/07 11:51 AM Page 42 5. Return the roller handle to the up position. Fig. 5 6. Use a 1/4" Allen wrench to unscrew the shellplate bolt. 7. Remove the shellplate from the machine. 8. Change the locator buttons. First, remove the locator buttons by pressing and holding the locator button down.
Page 43
SL 900, May 2007 5/21/07 11:51 AM Page 43 10. Move the roller handle to the down position. 3. From the 20 gauge conversion box, retrieve the 20 gauge casefeed sleeve, Fig. 9, and place it on the 11. Place the 20 gauge shellplate on the casefeed body.
Page 44
SL 900, May 2007 5/21/07 11:51 AM Page 44 8. Use a once-fired hull, place the hull in Station 2 Fig. 12 where the powder measure is located. Fig. 14 Fig. 14 the hulls have cycled through the machine. 9. Move the roller handle down and then back Toolhead Conversion up to its rest position.
Page 45
SL 900, May 2007 5/21/07 11:51 AM Page 45 Fig. 18 Fig. 16 20. Once again, move the roller handle down. As you return the roller handle to its rest position, you'll 17. Repeat these steps 4 times to make sure you see the completed round advance and move out of are receiving a uniform shot charge.
Insert using the SL 900. Assure yourself that the primer is the stop block BETWEEN the primer feed body and fully seated into the shotshell. We’ve found that the the tray mounting bracket.
It may be that the primer is not fully seated designed to. into the shotshell. It’s important that you make complete, full strokes of the operating handle when NOTE: All electrical/electronic components in Dillon using the SL 900. equipment are covered by a one year warranty. Technical Support...
5/21/07 11:51 AM Page 48 Lube Points on the SL 900 Machine: Fig. 82 & Fig. 83 A.) Mainshaft: The most important lube point of H.) Powder Body Collar (rails, hole and roller, all. Use 30w motor oil to lube the mainshaft bellcrank) (#13485).
Page 49 Suggested Settings Here are some helpful adjustment settings for the SL 900 Shotshell Loader. These settings illustrate ideal adjustments for the starter crimp and the final crimp die. These settings can also be used to reset these dies if you get completely out of adjustment.
28 gauge conversion #22139 20/28 casefeed plate #97045 Machine Cover #13329 The Blue Press, Dillon’s monthly catalog, has a complete listing of accessories available for all machines. Dillon Precision Products, Inc. 8009 E. Dillon’s Way Scottsdale, AZ 85260 (480) 948-8009 FAX (480) 998-2786 Web Site: www.dillonprecision.com...
Need help?
Do you have a question about the SL 900 and is the answer not in the manual?
Questions and answers
I have a SL900 and can't locate my manual. I know I have is, just can't put my finger on it. The issue is I swear I read the stack height should be 3/8" from top of hull mouth. I mentioned that to a fellow reloader, and now I can't verify same. Many folks have dished crimp issues. I don't. But I can't verify my claim of that stack height as I can't find my manual. I've read completely through the online manual, and don't see this reference. Was this possibly only in older manuals, and is no longer a spec for loading?