TM 5-3895-382-24 Put  the  nut  and  the  sleeve  over  the  tube.    The  head  of  the sleeve or the shoulder end of the sleeve should be next to the nut.  Push the tube into the counterbore of the filing body as far as possible.  Turn the nut clockwise until the sleeve holds the tube  and  until  the  sleeve  prevents  the  tube  from  moving. Tighten  the  nut  for  an  additional  1  1/4  turns.    The  sleeve should be seated and the sleeve should give a locking action. When it is necessary to assemble the tube fitting again, put the sleeve   over   the   tube   and   tighten   the   nut   until   a   sudden increase  in  torque  is  felt.    Next,  tighten  the  fitting  for  an additional 1/6 to 1/3 turn in order to seat the sleeve. Flex Fittings Illustration 10 Put the nut and the sleeve over the tubing and push the tube into  the  counterbore  of  the  fitting  body  as  far  as  possible. Tighten the nut until the nut is against the hex part of the fitting body. Torques for Standard Hose Clamps - Worm Drive Band Type SMCS Code: 7553 Illustration 11 Table 11 Initial Installation Width of Clamp Torque On New Hose 7.9 mm (.31 inch) 0.9 ± 0.2 Nm (8 ± 2 lb-in) 13.5 mm (.53 inch) 4.5 ± 0.5 Nm (40 ± 4 lb-in) 15.9 mm (.63 inch) 7.5 ± 0.5 Nm (65 ± 4 lb-in) Reassembly or Width of Clamp Retightening Torque 7.9 mm (.31 inch) 0.7 ± 0.2 Nm (6 ± 2 lb-in) 13.5 mm (.53 inch) 3.0 ± 0.5 Nm (27 ± 4 lb-in) 15.9 mm (.63 inch) 4.5 ± 0.5 Nm (40 ± 4 lb-in) Torque for Constant Torque Hose Clamps SMCS Code: 7553 Use  a  constant  torque  hose  clamp  in  place  of  any  standard hose clamp.  Ensure that the constant torque hose clamp is the same  size  as  the  standard  hose  damp.    Due  to  extreme temperature changes, the hose will heat set.  Heat setting can cause hose clamps to loosen.  Loose hose clamps can result in leaks.  There have been reports of component failures that have been caused by hose clamps that have loosened.  The constant torque hose clamp will help prevent these failures. Illustration 12 Use  a  torque  wrench  for  proper  installation  of  the  constant torque  hose  clamps.    The  constant  torque  hose  clamp  is installed correctly under the following conditions: Screw  tip  (1)  extends  6.35  mm  (.250  inch)(X)  beyond the housing. The  belleville  washers  are  collapsed  nearly  flat  after screw (2) is tightened to a torque of 11 ± 1 Nm (98 ± 9 lb-in). 4-10