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Figure  4-3-16.  Fixture Configuration
Figure  4-3-17.  Internal Cargo Handling System

TM-1-1520-240-10 Army CH-47D Heilcopter (EIC:RCD) Manual
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TM  1-1520-240-10            4-3-23 4-3-20.  HICHS Cargo Types. The HICHS allows relatively quick and easy loading of palletized cargo. The following pallet types may be used: a. Three 436L pallets, 88 x 108 inches. b. Six HCU-12/E or HCU/C pallets, 54 x 88 inches. c. Eight to ten warehouse wooden pallets, 40 x 48 inches. The HICHS has provisions for locking and securing 463L pallets. This type of pallet does not need to be tied down, but the cargo must be secured to the pallet. Combinations of different pallet types may be used. Miscellaneous cargo and equipment may be carried providing that they do not exceed weight or floor loading restrictions, and can be properly tied down. 4-3-21.  System Configuration. The HICHS can be placed in any of four configurations. These are loading, restraint, flight and unloading. Refer to Chapter  6  for  configurations  applicable  to  463L  pallets, warehouse pallets, and wheeled vehicles. To accomplish the configuration described above and in the referenced  tables,  several  components  must  be  set  in  a predetermined position. These components are listed below in conjunction with the illustration that defines the compo- nent location or position. a. Outboard rollers — fig. 4-3-16. b. Warehouse pallet guides — fig. 4-3-16. c. Ramp support assembly — fig. 4-3-16. d. Pallet lock assembly — fig. 4-3-17. e. Retractable flange assembly — fig. 4-3-15. f. 10K fitting assemblies — fig. 4-3-18. g. 5K fitting assemblies — fig. 4-3-18. 4-3-22.  Hatch Access. Remove, if necessary, any cargo forward of sta 377.250 to at least sta 157.750. Remove three centerline ring plug assemblies to free the forward hatch inboard guide roller assembly (fig. 4-3-17). Stow the removed parts ahead of sta 272.250. The hatch is  now  accessible  and  the  removed  parts  can  be  re– installed by reversing the proceeding steps. 4-3-23.  System Stowage. Flip-up  the  outboard  rail/roller  assemblies  and  secure the seat support tube as shown in fig. 4-3-16. Secure loading pole to clips located at the top of the buffer board between sta 300 and 400 on right side of helicopter with quick release pin. Inboard guide roller assemblies can be stowed  on  the  floor  beneath  the  troop  seats.  Secure ramp extension rollers to the underside of the ramp ex- tensions with quick release pins. Stow ramp extension supports  on  the  left  side  of  the  helicopter  in  brackets mounted between sta 520 and 534. Stow ramp support at sta 550 left side. 4-3-24.  Load Configuration and Sequence. Chapter 6 contains the detailed descriptions and proce- dures for load configuration and sequence.







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