This is the procedure to view Calibration Settings or re-calibrate the Plate Roll and Anilox Roll Positioning System. 1. Start with the Plate Roll and Anilox Rolls in the Retract Position. 2. Check the Press Model Number on the Operator Display. It must show a: Number 4 for a Mark IV Press. Number 5 for a Mark III Press. If it's wrong, correct it. A wrong Press Model Number will ruin a perfectly good day. 3. If there is a Plate Roll in the Station, remove it. 4. If there is not an Anilox Roll in the Station, put one in. 5. From the Operator Keyboard, punch up the Analox Roll Diameter, and check that it agrees with the Analox Roll Diameter stamped on the Anilox Roll. If it doesn't, then enter the diameter stamped on the Anilox Roll into the Keyboard, and verify. 6. Place the Calibration Bar in place of the Plate Roll, and secure it. This is the keyboard: ________________________ | | | | | | 000 | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | 0 | |_____|_____|_____|_____| a. !!!Steer clear of the Plate and Anilox Rolls, because this next step will make them move!!! Press these two keys marked with 0's together, depressing the one marked 000 just slightly before the other one. b. The Plate and Anilox Rolls will move to the rear, re-zeroing themselves against the backstop, just like they do for a re- zero. Then they will move forward, past the Retract Position, and on to the Machine Natural Repeat Position. This is a fancy way of saying that the Plate and Anilox Rolls go to the 16.5 inch Repeat Position for Mark IV Presses, and to the 27.5 inch Repeat Position for Mark III Presses. On the display, you'll see something like what you normally see when you're adjusting the inking pressures, for instance: 27.2 55.8 -16.6 -15.0 where 27.2 is the Analox Gear side, 55.8 is the Plate Roll Gear Side -16.6 is the Analox Oper side -15.0 is the Plate Roll Oper Side and the values are Calibration Values. For instance, the 55.8 value means that the Plate Roll Gear Side Home Position will be adjusted .0058 inches forward of Standard. The values are also Adjustment Values, and they change just like you're adjusting the Plate and Inking pressures. In fact, that's how you do the Calibration. You may want to write the Calibration Values down for future reference. In fact, if all you want to do is view the Calibra- tion Values, or write them down, do so, and stop the pocedure here. You're done. IF AT ANY TIME, LIKE NOW, YOU WANT TO STOP THE CALIBRATION, JUST HIT THE "ESCAPE" KEY. The system will return to the "RETRACT" position, and forget anything you've done to Calibration. 7. Decide which position you want to Calibrate first. You'll eventually have to check all four sides, which are: the Plate Roll Gear Side, the Plate Roll Oper Side, the Analox Gear side, the Analox Oper side. so you may as well start with the Plate Roll Gear Side, since the Plate Roll is automatically selected first off. Now you can probably do the Calibration job all alone on the narrower Presses. But, unless you've got Gumby arms, you can't on the wide Presses, so grab an assistant. You decide. a. Start with the Plate Roll Gear Side. b. You'll be using the joe block as a feeler gage between the Calibration Bar and the Impression Cylinder. You'll be on what seems to you to be the far left of the Calibration Bar, since you'll be in the machine. (BE CAREFULL!!!) Clear away any Web that would interfere with the joe block, since we don't want the Web screwing up the measurement. Rock the joe block between the Calibration Bar and the Impres- sion Cylinder. If it's too tight, use the Operator Wheel to move the Calibration Bar to the rear. If it's too loose, move it forward, until it feels jussst right. If you're using an Assistant, generally the Assistant moves the Wheel and you use the feeler gages, telling him which way to adjust. But you decide. c. Now move to the Plate Roll Operator Side, and repeat. Be sure to select moving the Operator Side, or you'll mess up the Plate Roll Gear Side adjustment. To select the Operator Side, Press: This is the keyboard: ________________________ | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | 000 | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| d. When you are satisfied with the Plate Roll Operator Side, move back to the Plate Roll Gear Side and re-adjust it. Be sure to select moving the Gear Side, or you'll mess up the other side. To select the Gear Side, Press: This is the keyboard: ________________________ | | | | | | | 000 | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| You have to re-adjust the one side after adjusting the other, because an ajustment on one side affects the other, a little bit. But each time your adjustments will become smaller, until you find you don't need to make any further adjustments. So alternately adjust the one side and the other, until they are right. e. When you are satisfied with the Plate Roll adjustments, go on to the Anilox Roll. Select moving the Anilox Roll: press: This is the keyboard: ________________________ | | | | | | | | | | |_____|_____|_____|_____| | | | | | | 000 | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| Adjust the Anilox Roll to the Calibration Bar the same way you did the Plate Roll, but this time using the joe block as a feeler between the Anilox Roll and the Calibration Bar. d. To make the Positioning Sysem remember the new value, press the two keys marked with 0's together, depressing the one marked 000 just slightly before the other one: ________________________ | | | | | | 000 | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | | |_____|_____|_____|_____| | | | | | | | | | 0 | |_____|_____|_____|_____| Pressing any other key(s) will make the Positioning Sysem forget about any changes you attempted to make. This is the way you view (and verify) the current value without making a change. e. It's good practice to check your work by repeating the steps in 6 above, omitting changing any data. ----------------------------------------------------------------------- Copyright 2011, Michael L. Riechers, all rights reserved, except that permission is granted, and encouraged, to copy, in whole or in part, for personal, organizational, informational, and educational use, without limit, and to post individual paper copies wherever, such as on Presses, Bulletin Boards, and Bathroom Walls, so long as no charge beyond a nominal reproduction fee is made, and this copyright notice is retained. As always, your questions, comments, corrections, blurbs, blogs and rants are encouraged. Please send them my way via email, web, or telephone, mlr at rse.com or 513/844-2220.