(b) As required, remove the chuck and
die from the applicable snap fastener tools by reversing
the procedures in (b) above.
2. Hand- or foot-operated press
method. Installation of durable or pull-the-dot snap
fastener assemblies by hand- or foot-operated press can
be accomplished using the procedures in paragraph 1
above. except the chuck and die will be secured within
the applicable press assembly using the available
Figure 3-39. Hand-held tools with snap fastener
components prepared for use, typical.
(d) 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
Figure 3-40. Chuck and die installed in hand-
the proper side of the material for subsequent fastener
operated press, typical.
(e) Place the socket or stud, as
(c) Installing a lift-the-dot snap fastener
applicable, on the barrel of the cap or post, as
applicable. With an applied strike from a mallet, clinch
1. Hand-held method.
the two snap fastener components to the material.
(f) Remove the clinched snap fastener
ascertain the size chuck and die required the fastener
components from the chuck and die set and check the
socket and clinch plate or stud and washer, as
seating of the joined components. If the applicable
components are not properly seated, repeat the
(b) Place the selected chuck in the
procedure in l(e above.
open end of the holder and secure the chuck in place
(g) Check the engagement of the
using the locking screw located on one side of the
installed snap fastener components with the opposite
holder. Further, place the appropriate die into the anvil.
mating components to insure the open and closed
(c) Fit the socket (with prongs facing
snapping process is accomplished without hinderance.
down) or stud (with barrel facing down) on the lower end
If the snap engaging process cannot be accomplished
of the chuck. Place the clinch plate or washer, as
without difficulty. replace the opposite mating snap
applicable, on the die.
fastener components using the procedures in (a)
(d) Position the material over the clinch
through (f) above.
plate or washer, as applicable.
A durable snap fastener assembly
(e) Aline the socket prongs with the
precut holes in the material or the barrel of the stud at
will open and close from any
the center of the material-covered washer, as
A pull-the-dot snap
applicable. With an applied strike from a mallet,
fastener assembly will open and
close from only one direction.