TM 10-3610-202-14 (9) Use the hook at the farthest end from the turnbuckle,  and  hook  each  end  of  the  sling  assemblies to a tiedown eye of the assemblage. (10) Secure the sling hooks to the tiedown ring (see fig.  4-2). CAUTION Do not overtighten the turnbuckles.  Overtightening turnbuckles will tear the lifting eye assemblies from the shelter. (11) Tighten  all  turnbuckles  evenly  by  hand; then  turn  each  turnbuckle  an  additional  one-half  turn with a bar or rod inserted in the turnbuckle slot. (12) Insert  the  appropriate  size  skid  wooden blocks  between  the  shelter  skids  and  the  sides  of  the truck  bed  to  prevent  movement  and  strain  on  the  sling assembly cables. (13) Insert  appropriately  sized  wooden  blocks between the shelter skids and the cab wall of the truck bed to protect the towing eyes of the shelter and the cab wall of the truck bed. 4-4.  Reinstallation After Movement. After arrival at the new worksite, a certain amount of  assembly  will  be  required.    The  degree  of  assembly will  depend  to  a  great  extent  on  the  distance  travelled and the time spent in transit.  Analysis of the individual situation   should   determine   the   extent   to   which   the following procedures will be followed: a. Unloading After Movement.  If it is desired to set up the shelter on the ground, proceed as follows: (1) Select a site where the ground is firm and dry and has good drainage. (2) Level the ground on which the shelter will be   placed,   and   position   enough   concrete   blocks   or wooden   beams   on   the.      leveled   spot   to   support   the shelter adequately. (3) Remove    the    wooden    blocks    installed between the shelter and the sides and front of the truck body. (4) Loosen all tiedown turnbuckles and remove sling hooks from truck and shelter tiedown rings. (5) Install the lifting ring on the sling hooks to form the sling assembly. (6) Install  sling  assembly  as  shown  in  figure 41, ensuring that the turnbuckle ends of the sling cables are connected to the lifting eyes. (7) Tie  a  1/2-inch  rope  at  least  15  feet  (4.6 meters) long to each rear shelter towing eye. (8) Position  a  man  on  each  rope  to  assist  in positioning the shelter during the lifting operation. (9) Lower truck tailgate. WARNING To  avoid  injury  to  personnel  and damage to equipment, permit only those individuals actually engaged in the lifting operation to be near the vehicle and the lifting device.        Also,    all    instructions relative   to   the   lifting   operations must come from the crew supervisor. CAUTION Do    not    jerk    the    shelter    when lifting.      A   pull   greater   than   the actual  amount  required  to  lift  the shelter   will   tear   the   lifting   eye assemblies from the shelter. CAUTION Avoid  swinging  the  shelter  from side to side.  The additional stress placed on the lifting eye assemblies will tear the lifting eye assemblies from the shelter. (10) Slowly  lift  the  shelter  with  the  crane  or helicopter,  to  a  position  just  high  enough  to  clear  the body of the transportation vehicle. WARNINGI All personnel must remain clear of the truck while the assemblage is being lowered into position. CAUTION Do not bounce or jar the shelter. Bouncing or jarring can loosen the bond between the skin and foam-core and reduce the rigidity and strength of the shelter. (11) Move the transportation truck clear of the area  and  carefully  lower  the  shelter  to  the  previously prepared area of ground. (12) Check  the  level  at  the  rear  of  the  shelter and  at  the  side.    Make  any  adjustment  necessary  to level the shelter. 4-6