TM  55-1615-226-40 Figure And Part No. Nomenclature Test Longitudinal Circular Index (With Coil DC) (With Heads DC) Number 45. 204-011-408   Collective M 10,000 Amp Turns* 2,000 Amps-1-l/2° Sleeve Use two shots for Central Conductor complete  coverage. TEST  CODE M = Magnetic Particle Inspection Per MIL-I-6868 F = Fluorescent Penetrant Inspection Per MIL-I-6866 NOTE Divide Amp turns specified by number of turns in coil of equipment used, to determine amperage to be applied to part. 2-17.   Scissors   Assembly. 2-18. Inspect scissors assembly as follows: CAUTION Take  necessary  precau- tion   to   protect   any bearings   not   removed from   assembly,   from contamination by penetrant  during  non- destructive  inspection test. a. Perform nondestructive inspection in accor- dance with table 2-1. b. Inspect inner race (26, figure 2-1) for flaked or spalled area, brinelling, wear bands, scratches, or defects on contact surface. c. Inspect bearings (27 and 29) for dented seals or shields, broken, cracked or spalled, flaked, pitted, scored, etched areas, rust or corrosion, wear bands on rollers, or excessive looseness due to wear. d. Inspect bearings for evidence of overheating. NOTE Light   gray   lubrication stains  are  acceptable, provided the surface is not physically  affected. e. Inspect thrust washer (25) for wear or damage. f. Inspect housing (23) and seal (71X6223) (24) for wear and damage. g. Inspect spacers (18 and 19, figure 2-1) for wear and damage, pitting, scratches, rust corrosion, and cracks. h. Visually inspect spacer (28, figure 2-1) in scis- sors for damage. i. Inspect bearing set (20) for damaged seals or shields, smoothness and freedom of operation, and excessive looseness of bearings, end liner (19) for wear and damage. j. Inspect  bearings  (49  and  51)  for  freedom  of movement and smoothness of operation. Inspect bearing (49) and liner for looseness. Any looseness will require removal of liner and checking bearing (46). Egging of the hole not to exceed 0.001 for 30 degrees. Inspect bearing (51) and liner (50) for loose- ness. Any looseness will require removal of the liner (50) and checking the mating hole. Egging shall not exceed 0.0005 for 30 degrees. k.. Inspect scissors (6) for mechanical or corrosion damage. (1) Mechanical damage must not exceed 0.010 inch in depth in area from the centerline of the pivot bore to the extremity of the drive link attachment lug. This damage is not to violate minimum dimension shown in figure 2-1.1. (2) Corrosion damage must not exceed 0.005 inch in depth from the centerline of the pivot bore to the  extremity  of  the  drive  attachment  lug.  This damage is not to violate minimum dimension shown in figure 2-1.1. (3) Mechanical damage to surfaces within 0.5 inch of any hole must not exceed 0,010 inch in depth from the centerline of the pivot bore to the extremity at the drive link attachment lug, and repair area must not exceed 25 percent of the area within 0.5 inch of any hole. (4) Corrosion damage to surfaces within 0.5 inch of any hole must not exceed 0.005 inch in depth from the centerline of the pivot bore to the extremity of the drive link attachment lug, and repair area must not exceed 25 percent of the area within 0.5 inch at any hole. (5) Mechanical damage must not exceed 0.035 inch  in  depth  in  all  areas  of  scissors  other  than specfied in (1) and (3) above, (6) Corrosion damage must not exceed 0.017 inch in depth in all other areas of scissors other than specified in steps (2) and (4) above. (7) Mechanical or corrosion damage in any one erea must not exceed 0.25 square inch in area or 0.75 inch in any one length. Change 4 2-5 2-5