Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
(e) Disengage the tool from the contact pin.
(3) Insertion.
(a) Clip insertion tool around wire and slide
tool against contact shoulder. See figure
4-27, view A.
(b) Guide the contact into the correctly num-
bered grommet hole in the rear face of the
insert and feed the contact carefully into the
hole, See figure 4-27, view B.
(c) Push the tool straight in at right angles to
the grommet surface, until contact is fully
seated and you feel the contact retention
clip snap into place on the contact with a
slight audible click.
Do not attempt to reseat a contact once
the insertion tool has been removed. Re-
move contact and start over again.
(d) Withdraw the tool, keeping it perpendicular
to the grommet face. Check the contact by
pulling on wire lightly to assure contact is
firmly locked,
d. Crimping Tool Operation.
(1) General. Two types of crimping tools and
(
positioners are used depending on the contact pin size.
See figures 4-28 and 4-29,) Refer to table 4-24 for the
correct contact size, crimping tool, and positioner.
(2) Crimping tool MS3198-1 and positioner
MS3198-6P assembly.
NOTE
The tool handles must be fully opened
when inserting the positioner, and when
changing the selector positioner.
(a) To install the positioner, place positioner in
bayonet socket at the back of the tool.
(b) Push positioner in and rotate 90 degrees
clockwise until locked in position.
(3) Crimping tool MS3198-4 and positioner
MS3191-9T assembly.
NOTE
The tool handle must be fully opened
when inserting the positioner, and when
changing the selector position.
(a) TO install the positioner, press the trigger to
release turret to the indexing position,
(b) Position the positioner over the retaining
ring on the back of the tool, Make certain
4-174
(c)
(d)
(e)
the positioner is seated on the tool; then
secure the 9/64-inch socket head screws
with a sockethead screw key. Turret should
now index easily without binding.
Press trigger and spring-loaded turret will
snap out to indexing position.
The turret has three posiitons which are
color coded and marked with the applicable
contact size. Rotate the turret until the
correct position is lined up with the index
mark on the positioner.
Push the turret into the positioner until it
snaps into the locked position.
(4) Crimping. See figure 4-30 and perform crimp-
ing operation as follows:
(a)
(b)
(c)
(d)
(e)
(f)
Tool must be in open position. Close han-
dles to trip ratchet and then release pres-
sure.
Remove safety clip wire from selector con-
trol.
Turn selector control in complete revolu-
tions until correct selector number is visible
in the selector number window.
Tool is now ready for use. Replace safety
clip wire.
Insert the stripped wire into the contact
until end of wire can be seen through the
inspection hole. Turn the tool around so the
front is facing you then insert wire and
contact through the indentor opening until
it bottoms in the positioner.
Squeeze handles together until the positive
stop is reached. Tool will then release the
return to fully open position. Remove
crimped contact and wire. Make sure the
wire strands are visible through the inspec-
tion hole in the contact.
e. Lug Replacement. Large terminal lugs, used on
the ends of power cables, etc., ma be replaced using
crimping tool MY28-4 (figure 4-31 and the following
procedure.
(1) Remove any insulating tubing from terminal
and use hacksaw to cut off old lug at the point
where cable just enters lug barrel.
(2) Strip cable insulation to the depth of the lug
barrel. Clean cable as required. See figure
4-32.
(3) See figure 4-31 and adjust crimping tool as
follows:
(a) Loosen nest die lock screw.