TM    55-2350-224-14 d.  Put  the  transmission  in  neutral.  For  the M113A3 and M730A2, put the transmission in the steer lock (SL) position. e. On  some  semitrailers  the  carriers  will  have  1 to 2 inches of overhang on both sides. Position the carrier so that the overhang is equal on both sides. f. Install  chain  and  load  binders.  Specific  sizes and types of chain and cable assemblies are speci- fied  in  table  2-3  and  figures  2-1  and  2-2.  Figures 2-3,  2-4,  and  2-5  and  table  2-4  provide  detailed instructions   for   restraining   the   carriers   against forces encountered at normal speeds and operating conditions. The transporter can use other chain and cable  assemblies  of  adequate  strength  and  size. The   M1068   carrier   only   requires   two shackle assemblies. The rear tiedown pro- visions do not need shackles. Table 2–3. Bill of Materials for Transport by Semitrailer Item Quantity Description Shackle assembly 4 Shackle,  NSN  4030-00-279-4475.  Bolt,  NSN  5305-01-006-2072.  Washer  (2), NSN   5310-00-809-8541.   Nut  (2),  NSN  5310-00-891-3428.  (Part  number 19207-12381884,  MIL-S-24214,  grade  B,  type  I,  class  3  safety  anchor  shackle with a special bolt that has a 0.99 (+0.00, -0.06) in. diameter, with a minimum breaking load of 122,000 pounds and a minimum proof load of 61,000 pounds). Chain assembly, option 1a, for loading one carrier on the M870 and the M871 Chain 4 NSN 4010-00-443-4845, 3/8  in. x 14 1/2 ft, grade 70, 6,600-pound safe working load. Load  binders 4 NSN 3990-01-213-1746, 3/8 in.-1/2 in., type 4 latching, 9,200-pound safe working load. Chain assembly, option lb, for loading one carrier on the M172A1 and the M127A2C Chain 6 NSN 4010-00–803-8858, 3/8 in. x 10 ft, grade 80, 8,250-pound safe working load. Load  binders 6 NSN 3990-01-213-1746, 3/8 in.-1/2 in., type 4 latching, 9,200-pound safe working load. Chain assembly option 2, for loading two carriers on the M872 series Chain 12 NSN 4010–00-803–8858, 3/8 in. x 10 ft, grade 80, 8,250-pound safe working load. Load binders 12 NSN 3990-01-213-1746, 3/8 in.-1/2 in., type 4 latching, 9,200-pound safe working load. Chain assembly, option 3, for loading two carriers on the M1000 series Chain 4 1/2 in. x 10 ft, high strength alloy steel chains, 12,500-pound safe working load (BII with M1000). 4 NSN 4010-00-803-8858, 3/8  in. x 10 ft, grade, 80, 8,250-pound safe working load. Load  Binders 4 Adequate strength, 1/2 in., latching (BII with M1000) 4 NSN 3990-01-213-1746, 3/8  in.-1/2 in., type 4 latching, 9,200-pound safe working load. When chain not available, option 4 Wire  Rope 80 ft NSN 4010-00–272-8848, 1/2-in. diameter, 6 x 19 IWRC (independent wire rope core) improved plow steel, regular lay, table X, Federal Specification RR-W-410, Wire Rope and Strand, nominal BS of 23,000 pounds. Cable clamps NSN 4030-00-243-4440 (1/2 in.), 1/2 in. 16 NSN 4030-00-243-4441 (5/8 in.), type I, single-saddled, wire-rope clamp. (Crosby 5/8 in. 8 heavy-duty or one that will meet or exceed Federal Specification FF-C-450.) Torque capacity equals 65 ft-lb (1/2. in.) or 95 ft-lb (5/8-in.). Thimbles 8 NSN 4030-00-282-2512, 1/2 in, type III, heavy split oval construction (open pat- tern),  Federal  Specification  FF-T-276. Come-along  or 1 Adequate strength cable tensioning device. cable tightener b.  Chain  is  generally  rated  by  proof  test a.  Load  binders  are  generally  marked load  or  about  two  times  the  safe  working with  an  ultimate  breaking  strength  rat- load.  Appendix  C  includes  a  table  titled ing.  Depending  on  manufacturer,  break- "Method  of  Identification  for  Inch-Size ing strength is about three times the safe Chain." working load. 2-3