Press Setup Procedure

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This procedure is used to set up the Feed Bowl and Upper Feed Track on the Schuler MRH-150 Minting Press when changing over to a new denomination (i.e. dimes to quarters). The Blank Sorter must be set up before the Feed Bowl and Upper Feed Track because the Blank Gage provides the reference points to which the Feed Track is set. Click here for procedure

PROCEDURE:

1. Run all blanks out of the Feed Bowl and remove the clear plastic cover.
2. Next, remove the two M5 mounting screws and lift out the filler flag.
3. Then, remove the six M6 Ring Holder mounting screws and lift the Ring out of the Feed Bowl.
4. Remove the Top Guide Rail, Side Guide Rail and the Triangle. Once all pieces are removed, thoroughly clean the Feed Bowl and Upper Feed Track area.
5. Next, reinstall the Top Guide Rail.
6. Loosen the two Top Guide Rail height adjustment bolts.
7. Place a 0.30 mm feeler gage and two blanks under the guide rail.
   
   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.
8. Tighten the adjustment bolts while holding the guide rail tightly against the blanks and feeler gage.
9. Remove the Top Guide Rail and set it aside.
10. Next, reinstall the Side Guide Rail with the left side fixed mounting screw. Only hand-tighten the screw at this time.
11. Then, install the right side mounting screw. The right side mounting screw is installed with a washer.
    
    Make sure you use the correct bolts. The Side Guide Rail mounting bolts are shorter than the other bolts. If you put a long screw in a short hole and tighten, you may break off the screw head.
12. Use a straight edge to align the front edge of the Side Guide Rail with the operator side Diameter Control Gate so it is slightly outside the Diameter Control Gate. This allows the blanks to flow smoothly into the Blank Sorting Device.
13. Once the Side Guide Rail is positioned, tighten down the mounting bolts.
14. Install the proper Triangle, but leave the mounting screws loose. There are only two Triangles that are used for all denominations.
    
    If you are not sure which Triangle to use, place both triangles on a flat surface. Place a blank between the two triangles. The height of the triangle must be smaller than the height of the blank. If you have to change Triangles, remove the two mounting bolts, take off the old triangle, install the new one, and hand-tighten the bolts.
15. Place a row of blanks on the feed track and then place a 1 mm feeler gage between the Triangle and the blanks.
16. Hold the Triangle firmly against the blanks and tighten the adjustment screws.
17. Next, check the clearance at the tip of the Triangle.
    
    This setting is critical for proper operation of the Feed Bowl. The tip must be positioned so that when the blanks approach the Triangle, only one blank is diverted into the track and the other is diverted back into the Feed Bowl.
18. Then, place the Ring back into the Feed Bowl.
19. Loosen the jam nuts on the three Height Adjustment Bolts. The Height Adjustment Bolt is the center bolt.
20. Then, place 6 blanks under the Ring. Position a blank to the left and right of each adjustment block. If the blanks won't fit under the ring, turn the Height Adjustment Bolts clockwise to raise the Ring.
21. Once the blanks are in position, turn the Height Adjustment Bolts counterclockwise to lower the ring onto the blanks.
22. Next, turn the Height Adjustment Bolts a couple times to slightly raise the Ring. Place a 0.35 mm Feeler Gage between the Ring and the blanks and then turn the height adjustment bolts to lower the Ring until it contacts the feeler gage. Repeat this on the other blanks.
    
    When setting the clearance, make sure the feeler gage is on the edge of the coin and not the center. If the clearance is set from the center of the coin, the blanks will not flow properly.
    
    If the blanks are bad or dirty, the clearance can be increased. The 0.35 mm clearance is the minimum allowed. The maximum clearance is one-half the thickness of the blank.
23. Once the clearances are set, tighten the Ring Holder mounting bolts, make sure the feeler gage can be removed with only slight resistance and then tighten the height adjustment screw jam nut. After the mounting bolts are tightened, tighten the Height Adjustment Bolts again to take up any slack caused by tightening the mounting bolts.
24. Recheck the Ring clearance again. This is important as the clearance can sometimes change once the mounting bolts are tightened.
    
    If the clearance needs to be reset, try turning the Height Adjustment Bolts without loosening the mounting bolts. If that doesn't work, loosen the mounting bolts a quarter turn and then tighten the Height Adjustment Bolt. Recheck the clearance.
25. Next, reinstall the Top Guide Rail.
26. Then, reinstall the Filling Level Control.
27. Position the Filler Flag by loosening the clamping screw, place a blank under the Filler Flag, position the flag just above the blank and then tighten the clamping screw.
    
    The level of blanks must be high enough to keep the Feed Track full, but not any higher. If there are too many blanks, the weight will cause the bottom blanks to grind against the Feed Bowl bottom. This will create excessive coin dust inside the bowl.
28. Place the cover back on the Feed Bowl.