jueves, 28 de noviembre de 2013

Alineación

Measuring the A, B, & C dimensions To measure the A, B, & C Dimensions, follow these steps. 1. The ““A”” Dimension is the diameter of face indicator travel. The ”“A”” Dimension should be slightly less than the coupling diameter. This is the most critical dimension. Measure ““A”“ very carefully. 2. The ““B”” Dimension is the distance from the rim indicator to the front foot bolt center. This dimension is measured parallel to the shaft. 3. The ““C”” Dimension is the distance between front and rear foot bolt centers. This dimension is measured parallel to the shaft. Obtaining As-found Readings To obtain a complete set of as-found readings, perform the steps below: 1. Rotate the dial indicators to 12:00. 2. Set the rim dial indicator to the positive sag value. 3. Set the face dial indicator to zero. 4. Record the setting of both dials at 12:00. 5. Rotate the dial indicators to 3:00. 6. Determine and record the reading on both dials. 7. Rotate the dial indicators to 6:00. 8. Determine and record the reading on both dials. 9. Rotate the dial indicators to 9:00. 10. Determine and record the reading on both dials. 11. Rotate the dials to 12:00 and ensure both dials return to their original setting. Document as-found results using a format similar to that shown below.