RCBS Pro Chucker 88915, Product Instructions

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To use the Large Feed Tube
Leave the Medium Bottom Bushing in the Housing.
Place the Large Top Bushing into the Housing and insert the Feed Tube. NOTE:
The long vertical slot in the Feed Tube must face the Cam (left).
Thread in the Top Stop Pin and adjust as necessary. Refer to ADJUSTMENT
Section 4, 5 & 7.
ADJUSTMENT
1. ALIGNING OPEN CAM : With the Case Feeder Housing installed, center the Open Cam on the bottom hole
of the “Feeder Tube Housing”. Align it as squarely as possible.
2. ADJUSTING BOX RAIL FOR CASE FEED : The front of the Box Rail needs to be pulled down enough so
that the cartridge case smoothly enters the Shell Plate. If the front of the Box Rail is pulled down too far, the
Case Pusher will bind and not feed the case. If the Box Rail is too high, the case will tip and fall over versus
being inserted into the Shell Plate. Adjust accordingly.
3. ADJUSTING CASE PUSHER : Place a case into the Shell Plate, insure that the top setscrew in the Box Slider
is loose enough that the front assembly slides in and out, slide the Case Pusher assembly forward. Tighten
the setscrew in the Box Slider.
4. ADJUSTING THE ADJUSTMENT RING : The Adjustment Ring needs to be set at a point just above the
bottom case in the Housing. Place one case into the Case Feed Tube, and slide the Adjustment Ring
assembly up or down until it is approximately 1/8”-1/4” above the mouth of the case.
5. ALIGNMENT OF CAM : Looking down from above, center and square the Cam assembly to the Top Stop
Pin. Secure the Cam assembly. Slowly lower the handle to ensure that the Top Stop Pin rides down the
CENTER of the Cam.
6. SETTING THE TOP STOP PIN : Place two cases into the Case Feed Tube. Loosen the two 3/32” setscrews
in the Cap of the Top Stop Pin, with finger pressure, turn the CAP in until it bottoms out. Lower the press
handle, bringing the straight vertical section of the CAM, up to the Top Stop Pin assembly. Unscrew the CAP
until it contacts the CAM. Raise the Press handle. Unscrew (lengthen) the CAP one and one-half turns and
tighten the two setscrews. Cycle the handle, only one case should feed. If both cases dropped out, re-adjust
the Top Stop Pin (lengthen) to add more pressure on the top case in the Feed Tube. Drop in two more cases
and repeat the process until enough pressure is put onto the top case so that only the bottom case feeds.
7. ADJUSTMENT OF THE CLOSE CAM : Lower the press handle, slide the Close Cam assembly so that it is
centered and aligned with the Top Stop Pin, secure the Flat Head Cap Screw (FHCS).
PHOTO 29
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