TM 9-2815-225-34&P 3-47.  TURBOCHARGER REPAIR (Contd) LOCATION/ITEM ACTION REMARKS b.  Cleaning and Inspection (Contd) 27.     Wheel and shaft (20) Inspect for: a.  Turbocharger seal groove Use crocus cloth to smooth out damage. small grooves and marks. b.  Thrust edge for scratches. c.  Cracks.   Use dye solution.  Refer to MI-I-6866 for inspection and pene- trant methods.  Discard if cracked. d.  Damaged threads.   Discard if damaged. 28.     Wheel and shaft (20) Inspect for: weld area a.  Chips or scratches near Discard if chipped or scratched. weld area. b.  One hole in welded area Visual inspection. allowed.  Maximum hole diameter of 0.080 in. (2.032 mm) is acceptable. c.  Holes in weld area not to Dye solution crack detection exceed 0.015 in. (0.381 mm). method.  Very small holes that cannot be seen in visual inspec- tion are allowed. d.  Cracks in weld area not to Use a suitable crack detector exceed 0.3750 in. (9.525 mm) other than visual inspection. in length. e.  Not to exceed three cracks in weld area. f.  Minimum distance of 0.250 in. (6.35 mm) between cracks. g.  Cracks on circumference of welded area not to exceed 0.0625 in. (1.587 mm) in length. h.  Discard if fails to meet any of the above conditions. 29.     Wheel and shaft (20) Inspect for shaft runout.  Not to Remove aluminum deposit with circumference exceed 0.0005 in. (0.0127 mm). crocus cloth before inspection. Rotate and support shaft in Vee-block and position dial indica- tor to determine runout.  Discard if exceeded (see illustration). 3-284