0039 00  TM 10-1670-287-23&P  f.  Check engagement of installed snap fastener components with opposite mating components to  ensure open and closed snapping process without hindrance. If snap engaging process cannot  be accomplished without difficulty, replace opposite mating snap fastener components using  procedures in steps a. through e., above. As required, remove chuck and die from applicable  snap fastener tools by reversing procedures in step 1., above.  4.  Hand or foot operated press method. Installation of a snap fastener assembly by hand or foot  operated press may be accomplished using the procedures in step 3., above, except one uses the  hand or foot to press the two pieces together, and the chuck and die will be secured within the  applicable press assembly using the available locking screws.  0039 00-3/(4 Blank)  Hand-operated Press  Locking Screw Chuck Die Locking Screw END OF WORK PACKAGE 