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This document, and the content contained herein, is intended for customers, users and other persons with the operation and features of the covered Hegla products. While Hegla makes every effort to include accurate and useful information, it is not possible to anticipate or address every possible situation or to account for conditions at unknown locations or interactions with unknown systems or components. Therefor, these documents must be used only for informational purposes and used in conjunction with best practices and with due care. Hegla shall not be responsible for any injuries or losses that occur as a result of the information in this document. Moreover, as products and offerings change over time, the usefulness of the information in this document may become obsolete. It is the responsibility of the reader or consumer to ensure that the information contained herein is timely and reflects the current reality of Hegla products and offerings. Hegla disclaims any and all warranties regarding the information in this document.
***Read chapter 1 of your operators manual before undertaking any work in the area of the servo motor and drive equipment.***
When in doubt please contact Hegla service before taking action (404) 763-9700
How to adjust the grinding head (New Head with bearings)
Before you set the Grinding head you must ensure that the cutting head adjustment is correct.
To do this follow the instructions in the Strip Test Document.
Only once this has been done and the cutting results are good you can start with adjusting the grinding head.
To ensure that the grinding is within tolerance and that the cut to grind is also within tolerance it is necessary to carry out a test sheet. If the grinding looks like the drawing below then the grinding wheel middle point is not in the middle of the turning axis.
Checking the turning point of the grinding wheel The wheel must turn on the spot when the Z-Axis turns. If the spot moves then the wheel is mechanically not centralized. In this case follow the instructions below.
The grinding head can be mechanically adjusted with the adjusting bolt on the side of the head. To do this you must do the following:
- Secure the head in position by screwing two bolts with large washers into the two front bolt holes (this will ensure that the grinding head cannot rotate / twist sideways when the mounting bolts are loosened).
- Loosen the 4 mounting bolts **Attention** this should only be done if the grinding head has been secured as described above!
- Use the Adjusting bolt to move the grinding wheel so that the center of rotation of the grinding head is in the center of the 20mm grinding wheel.
- To make it easier to adjust to the correct position the first time, measure your distance from edge of a grind to edge of the next grind. Then take another measurement of the of the next set of grinds from edge to edge (pictured below). Whatever the difference is between the two grinds write that value down. Now you must HALF the written down value and use the HALVED value on a feeler guage (pictured below) and make the necessary adjustment.
- Tighten the mounting bolts back up.
- Remove the two securing bolts.
- Test the results by grinding the same plan as before. The grind should now be equal distance apart.
- If necessary repeat the process.
When you are sure that the grinding wheel middle point is in the middle of the turning axis you can now set the offset from center of the cutting wheel to center of the grinding wheel.
First you set the offset for the wide wheel:
- Again do a test sheet where you cut and grind as seen in the picture below.
The position of the WIDE WHEEL offset in relation to the cutting wheel is set by adjusting the software offset in the Hegla.ini configuration file.
C:\stdmmi\hegla.ini
• Open the file with an editor (e.g. note pad)
• Change the value as required Attention is it a positive or negative value!
- Save the file changes
- Create a NEW cutting plan
- Again do a test sheet where you cut and grind and check the result if necessary repeat the process.
Now you can set the offset for the NARROW WHEEL:
The position of the NARROW WHEEL offset in relation to the WIDE WHEEL is set by adjusting the software offset in the Hegla.ini configuration file.
C:\stdmmi\hegla.ini
- Open the file with an editor (e.g. note pad)
- Change the value as required Attention is it a positive or negative value!
- Save the file changes
- Create a NEW cutting plan
- Again do a test sheet where you cut and grind and check the result if necessary repeat the process.
***Attention changes made in the Hegla.ini may cause damage to the machine if not carried out correctly.***
