3. Primer Seating/Sizing
The APEX 10
TM
comes standard with a 100-stack primer tube either configured for SM or LG primers.
Primers can be filled manually using a flip tray and primer pick up tube (included) or using a 3
rd
party
vibratory feed accessory to fill pick up tubes. We recommend the following when setting up the priming
system:
• Insert 5-10 primers initially into the primer tube assembly
• Install a sizing die with the decapping rod removed.
• Cycle the press without a case present to ensure proper primer feeding into the disc.
• Pause with the Tool Head in the down position and verify that the primer punch is raised into
the shell plate with a primer.
• Place a case that has been decapped and has a verified primer pocket into the shell plate.
• Cycle the press – there will be some resistance as you get to the bottom of the stoke – use
caution. Remove the case and check primer insertion depth.
• Adjust the primer insertion pin until the proper primer depth is achieved.
There are 4 primer adjustments on the APEX 10
TM
press – refer to Figure 16.
1. Primer Depth – This adjusts the primer insertion depth – Never adjust more than a ¼ of a
turn without checking new depth. (#1 on drawing)
2. Primer Punch lower height – This adjustment sets the height of the punch when it is fully
retracted. It should flush with the bushing or slightly below in the primer housing. Slide the
block side to side to raise or lower. (#2 on drawing)
3. Primer Slot-to-Punch Alignment - This adjustment sets the stopping point of primer transfer
slot in the disc as it rotates to the primer punch. The adjustment screw has a spring-loaded
tip which cushions the stop of the shuttle disc. It should be set so the disc primer slot is just
past center over the punch. This will allow the alignment pin to perform the final alignment
with the punch. (#3 on drawing)
4. Primer Slot-to-Tube Alignment – This adjustment sets the stopping point of the primer
transfer slot in the disc as it rotates under the primer tube. It should be centered under the
tube. (#4 on drawing)
Note: If a jam occurs in the priming system, the disc in the priming mechanism will not rotate and
will be struck by the alignment pin in the tool head. Stop what you are doing, clear any cases from the
shell plate and carefully locate the cause of the stoppage. Carefully clear the jam.
Note: If the primer tube needs to be removed when it contains primers, it can be carefully slid to the
side in order to empty out primers. Remove the two screws holding the primer tube base to the priming
unit and carefully slide it to the right. Primers can be dropped out into your hand or a container.
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