TM 9-2320-209-34-2-2 NOTE If part is damaged beyond repair, get new one. 1. Check that outside diameters of worm gear (1), pinion shaft (2), and chain sprocket (3) is within wear limits. Refer to table 17-8. If parts are worn beyond wear limits given, get new ones. 2. Check that worm gear (1), pinion shaft (2), and chain sprocket (3) have no cracks, breaks or other damage. Using crocus cloth, rub out minor burrs. If damage cannot be repaired with crocus cloth, get new part. END OF TASK Table 17-8. Power Leveler Wear Limits (L means loose fit) Index Number 1 2 3 1 2 3 Item /Point of Measurement Worm gear (outside diameter) Pinion shaft (outside diameter) Chain sprocket (outside diameter) Fit of gear in bearing Fit of shaft in bearing Fit of sprocket in bearing Size and Fit of New Parts (inches) 2.247 to 2.249 1.376 to 1.377 2.873 to 2.874 0.004L 0.001L to 0.005L 0.001L to 0.003L Wear Limits (inches) 2.242 to 2.245 1.366 to 1.367 2.866 to 2.869 None None None 17-680