TM 9-2520-246-34-1 FRAME 3 NOTE Readings must be within limits given in table 2-7. If readings are not within given limits, throw away part and get a new one. 1. Measure diameter of mainshaft journal (1). 2. Measure diameter of mainshaft journal (2). 3. Measure diameter of mainshaft journal (3). 4. Measure bearing inside diameter (4). GO TO FRAME 4 Table 2-7. Mainshaft Journals and Bearing Wear Limits Index Number 1 2 3 4 Item/Point of Measurement Mainshaft journal diameter Mainshaft journal diameter Mainshaft journal diameter Bearing inside diameter Size and Fit of New Parts (inches) 1.9688 to 1.9698 2.0740 to 2.0745 1.5746 to 1.5750 1.5748 Wear Limit (inches) None None None None 2-53