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GENERAL MAINTENANCE PROCEDURES CONT. - TM-10-1670-299-20P_66
GENERAL MAINTENANCE PROCEDURES CONT. - TM-10-1670-299-20P_68

TM-10-1670-299-20P Ancillary Equipment fro Personnel Troop Parachute System Manual
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TM 10-1670-299-20&P TO 14D1-2-470-2 NAVAIR 13-1-41 (c) Snap fastener installation. 1  General.  Installation of a snap fastener may be performed by three different methods.  The most common method is the hand-held method that requires the use of a leather mallet or other no-steel impact device, a holder to hold the appropriate sized chuck, and an anvil which is used to contain a compatible sized die.  A second method  of  installing  a  snap  fastener  assembly  is  by  use  of  the  hand-operated  press,  the  chuck  or  die  are  individually secured in position by a threaded screw that is tightened by using a suitable sized key (Allen-type hexagon wrench) or a flat-tip (common-head) screwdriver, as applicable.  The third method of snap fastener installation is by use of the foot- operated press which, except for the means of operation, functions similar to the hand-operated press. 2  Installing a durable or pull-the-dot snap fastener assembly by the hand-held method. 3  Select the appropriate size die and chuck required for installing the fastener cap and socket or stud and post, as applicable. 4  Place the selected chuck in the open end of the holder and secure the chuck in place using the locking screw located on one side of the holder.  Further place the appropriate die into the anvil. NOTE In most instances a chuck will be installed in the hand held holder and a die will be placed in the anvil.  However, there may be some occasions the require the location of the chuck and die to be reversed.  This situation may also apply to the hand or foot-operated press. 5    Fit  the  socket  or  stud,  as  applicable,  on  the  chuck  lower  end.    Place  the  cap  or  post,  as applicable, on the die with the barrel facing up. 6  Position the material over the barrel of the cap or post, as applicable.  Insure that the fastener socket or stud, as applicable, will be located on the proper side of the material for subsequent fastener engagement. 7  Place the socket or stud, as applicable, on the barrel of the cap or post, as applicable.  With an applied strike from a mallet, clinch the two snap fastener components to the material. 8    Remove  the  clinched  snap  fastener  components  from  the  chuck  and  die  set  and  check  the seating of the joined components.  If the applicable components are not properly seated, repeated the procedure in step (a) through (f), above. 2-36







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