TM 10-1670-287-23&P  0055 00  DIRECT SUPPORT MAINTENANCE  MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM  SUSPENSION LINES/CASCADE LINES (ALTERNATE METHOD)  THIS TASK COVERS:  INITIAL SETUP:  Tools Personnel Required Follow-Up Procedure  Equipment Condition  Materials/Parts  REPLACE NOTE 0055 00-1  x Replace  1.  Main Suspension Lines. Replace main suspension lines as follows:  a.  Trim end of replacement line with scissors and taper approximately ¼-inch. Route line through  connector link and finger-trap 3-inches of line forming a $^{3}$/$_{4}$ ± $^{1}$/$_{8}$-inch loop at connector link.  Finger Trap Tool (Item 16, WP 0063 00)  Sewing Machine, Bartack (Table 1, WP 0050 00)  Shears (Item 39, WP 0063 00)  Tape Measure (Item 42, WP 0063 00)  Cord, Dacron, 600-Pound, Type I (Item 12, WP 0076 00)  Thread, Nylon, Size E (Item 43/44, WP 0076 00)  92R (10) Parachute Rigger  Continuity check and canopy trim  check (WPs 0005 00 and 0006 00).  Lay out on packing table or other  suitable area.  NOTE This procedure is authorized only if pre-manufactured suspension line  sets are unavailable.  This procedure applies to all lines except lines 4 A/B and 5 A/B lines. To  replace lines 4 A/B and 5 A/B, refer to WP 0054 00.  When replacing suspension lines, the overall base A-Line  measurement will be 14-feet, 6-inches ( r  2-inches).  Trim With Scissors. Tape  Approximately ¼-IN. Bartack $^{1}$/$_{8}$ -IN.  Max ¾ (± $^{1}$/$_{8}$ )-IN. 3-IN. * OTHER LINES  OMITTED FOR CLARITY