How to Set Up the Blank Sorter

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This procedure is used to set up the Blank Sorter on the Schuler MRH-150 Minting Press when changing over to a new denomination (i.e. dimes to quarters).

PROCEDURE:

1. Turn the black knob on the air regulator counterclockwise to shut off the air supply to the Blank Sorting Device. With the air off, you can move the Diameter Control Gates back and forth.
2. Use a 10 mm wrench to remove the reject coin box.
3. Remove the two mounting bolts to remove the Diameter Control Gage.
4. Clean off all Blank Sorter components.
5. Next, loosen the two 5mm front Diameter Control Gate bolts.
6. Then, loosen the two 5mm rear Diameter Control Gate bolts.
7. Install the Diameter Control Gage for the new denomination, but leave the mounting bolts loose.
   
   Make sure you have the correct Diameter Control Gage. The denomination will be written, stamped or engraved on the gage.
8. Hold the Diameter Control Gates tightly together and tighten the rear Diameter Control Gate and Diameter Control Gage mounting bolts.
9. Place a 4 mm Feeler Gage between the Blank Sorter Bracket and the front side Diameter Control Gate, and hold the Diameter Control Gates together.
10. Tighten the Diameter Control Gate mounting bolts while still holding the gates together. Once tightened, remove the feeler gauge.
11. Turn the black knob on the air regulator clockwise to turn on the air supply to the Blank Sorting Device. Set the air pressure to 2.5 -3.0 bar. If the Blank Sorting Device does not work properly at this setting, clean the slide rails that the gate moves back and forth on.
12. Then, use the 3 mm Allen wrench to remove the Height Control Gage and install the new one.
    
    When installing the Height Control Gage, make sure the tapered end faces the Upper Feed with the recessed holes facing down towards the blanks.
13. Slowly close the Blank Sorting Device cover and make sure the Height Control Gage does not hit either of the Diameter Control Gates.
14. If an adjustment must be made, first loosen the lock nut on the adjusting bolt using a 13 mm wrench.
15. Move the adjusting bolt to the left or right until the height control gage is centered between the diameter control gates. Once centered, re-tighten the lock nut.
16. Open the Blank Sorting Device cover and loosen the blue nut located on top of the Stop Cylinder. This loosens the swivel fitting and allows the air line to move freely.
17. Then, loosen the cylinder jam nut located at the bottom of the Stop Cylinder.
    
18. Turn the Stop Cylinder body clockwise or counterclockwise to raise or lower the cylinder (depending on the thickness of the blank you are changing over to).
    
19. To set the height, place a blank and a 0.30 mm feeler gage under the hold-down piece. The Stop Cylinder Block is tapered so that only the front part of the block actually contacts the blank. This is necessary due to the high speed of the press.
    
    If the blank is held too far back, the blank sensing proximity switch may think the blank is held in the Blank Sorting Device and reject it.
    
20. Turn the Stop Cylinder body until the front edge of the hold-down piece is contacting the rimmed edge of the blank. When in the proper position, you can pull the feeler gage out with slight resistance.
    
    If the blanks are bad or dirty, the clearance can be increased. The 0.30 mm clearance is the minimum allowed. The maximum clearance is one-half the thickness of the blank.
21. Tighten the cylinder jam nut and the blue nut.
    
22. Push a few blanks through the Blank Sorter to make sure the setup is correct.