TM 9-243
TYPES AND USES - CONTINUED
STRAIGHT-LIP FLAT JAW PLIERS
The straight-lip flat-jaw tongs have two straight jaws, a
fixed pivot point, and long straight handles. These tongs
are used to hold bearings and bearing inserts while
setting them n place.
END CUTTING PLIERS
The end cutting pliers are used to crop wire flush to the
working surface. They are designed to keep hands and
fingers safely away from the wire ends.
WIRE STRIPPERS (MULTIPURPOSE)
Wire strippers are used to strip insulation from electrical
cord. When closed around wire, only the insulation is
cut. The wire core remains undamaged.
CRIMPING TOOLS
There are approximately twenty different kinds of
crimping tools now in use at field locations, each
designed to install a specific type and size of connector.
These tools are used to install electrical taper pins, butt
connectors, ring tongue terminals, ferrules, etc. The
various crimping tools differ in some respects due to
different manufacturers; however, they are all marked to
indicate manufacturer's part number and wire size
limitations.
Several of the crimping tools are adjustable to
accomodate different insulation thicknesses. This
adjustment is accomplished by positioning two pins
(located near the pivot point of the tool Each of the two
pins can be placed in any one of three different locations
labeled 1, 2, and 3.
When making adjustments, make sure that both
insulation adjustment pins are in the same numbered
positions. Position number 3 is for wire having a large
insulation diameter, position number 2 is for wire having
a medium insulation diameter, and position number 1 is
for wire having a small insulation diameter.
Crimping tools are often color coded. The color will be
located either on the handle or on the crimping jaws of
the tool. The color indicates the size of the wire to be
connected. Often the connector is also color coded to
match the tool. The color codes normally used are as
follows:
Wire sizes
Color
26-22
Yellow
22-16
Red
16-14
Blue
12-10
Yellow
8
Red
6
Blue
4
Yellow
2
Red
1 0
Blue
2 0
Blue
3 0
Red
4 0
Blue
The locator (stop plate) on some crimpers is used to
position the different types of connectors (e.g., ring
tongue on butt-connectors) and is to be used to position
the connectors in all cases.
The majority of crimping tools use a ratchet control that
prevents the opening of the jaws once the crimp is
begun. This is to insure hat the correct amount of
pressure is applied to the connector.
*Note: adjustment pins available P/N 3144921
17-3 Change 3
