ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
the positioner is seated on the tool; then
(e) Disengage the tool from the contact pin.
secure the 9/64-inch socket head screws
(3) Insertion.
with a sockethead screw key. Turret should
now index easily without binding.
(a) Clip insertion tool around wire and slide
tool against contact shoulder. See figure
(c)
Press trigger and spring-loaded turret will
4-27, view A.
snap out to indexing position.
(b) Guide the contact into the correctly num-
(d) The turret has three posiitons which are
bered grommet hole in the rear face of the
color coded and marked with the applicable
insert and feed the contact carefully into the
contact size. Rotate the turret until the
hole, See figure 4-27, view B.
correct position is lined up with the index
mark on the positioner.
(c) Push the tool straight in at right angles to
the grommet surface, until contact is fully
(e)
Push the turret into the positioner until it
seated and you feel the contact retention
snaps into the locked position.
clip snap into place on the contact with a
(4) Crimping. See figure 4-30 and perform crimp-
slight audible click.
ing operation as follows:
Tool must be in open position. Close han-
(a)
dles to trip ratchet and then release pres-
sure.
Do not attempt to reseat a contact once
the insertion tool has been removed. Re-
Remove safety clip wire from selector con-
(b)
move contact and start over again.
trol.
(c) Turn selector control in complete revolu-
(d) Withdraw the tool, keeping it perpendicular
to the grommet face. Check the contact by
tions until correct selector number is visible
in the selector number window.
pulling on wire lightly to assure contact is
firmly locked,
(d) Tool is now ready for use. Replace safety
clip wire.
d. Crimping Tool Operation.
(1) General. Two types of crimping tools and
(e) Insert the stripped wire into the contact
positioners are used depending on the contact pin size.
until end of wire can be seen through the
(See figures 4-28 and 4-29,) Refer to table 4-24 for the
inspection hole. Turn the tool around so the
correct contact size, crimping tool, and positioner.
front is facing you then insert wire and
contact through the indentor opening until
(2) Crimping tool MS3198-1 and positioner
it bottoms in the positioner.
MS3198-6P assembly.
(f)
Squeeze handles together until the positive
NOTE
stop is reached. Tool will then release the
The tool handles must be fully opened
return to fully open position. Remove
when inserting the positioner, and when
crimped contact and wire. Make sure the
changing the selector positioner.
wire strands are visible through the inspec-
tion hole in the contact.
(a) To install the positioner, place positioner in
bayonet socket at the back of the tool.
e. Lug Replacement. Large terminal lugs, used on
the ends of power cables, etc., ma be replaced using
(b) Push positioner in and rotate 90 degrees
crimping tool MY28-4 (figure 4-31 and the following
clockwise until locked in position.
procedure.
(3) Crimping tool MS3198-4 and positioner
MS3191-9T assembly.
(1) Remove any insulating tubing from terminal
and use hacksaw to cut off old lug at the point
NOTE
where cable just enters lug barrel.
The tool handle must be fully opened
(2) Strip cable insulation to the depth of the lug
when inserting the positioner, and when
barrel. Clean cable as required. See figure
changing the selector position.
(a) TO install the positioner, press the trigger to
(3) See figure 4-31 and adjust crimping tool as
release turret to the indexing position,
follows:
(b) Position the positioner over the retaining
ring on the back of the tool, Make certain
(a) Loosen nest die lock screw.
4-174
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