TM 9-2520-246-34-1 FRAME 2 NOTE Readings must be within limits given in table 2-42. The letter L indicates a loose fit and the letter T indicates a tight fit. If readings are not within given limits, throw away part and get a new one. 1. Measure fit of two gears (1) on countershaft (2) in two places. 2. Measure fit of two keys (3) in two countershaft keyways (4). 3. Measure fit of two keys (3) in two gear keyways (5). END OF TASK Index Number 1 and 2 3 and 4 3 and 5 Table 2-42. Countershaft Assembly Fits and Tolerances Size and Fit of New Parts Item/Point of Measurement (inches) Fit of gear on countershaft 0.0005 to 0.0025T Fit of key in shaft keyway 0.000T to 0.0032L Fit of key in gear keyway 0.0028 to 0.0004L Wear Limit (inches) O.OO1OL 0.0052L 0.0024L 2-203