TM 9-4120-385-14
c. INSPECTION OF WIRING.
1. Inspect all wiring installations for cracked or frayed insulation material.
2 . Pay particular attention to wires passing through holes in the casing or around
sharp edges.
3. Repair or replace defective wiring.
4. Inspect electrical connectors and fittings for damage or broken conditions.
5. Replace defective connectors and fittings.
d. SPLICING OF WIRING.
1. To repair broken or cut wires that are otherwise sound, the mating ends can be
stripped and spliced.
2. A commercial butt splice can be crimped onto the ends to join them, or a wire
splice can be made.
3. A wire splice is made by stripping 11/4 inch of insulation from wire ends, holding
the ends parallel and facing opposite directions, then twisting each end around the other wire at
least three turns.
4. solder and apply insulation.
e. CRIMPING TERMINALS.
1. To install a terminal on end of a wire, strip 1/4 - 1/2 inch of insulation from the
end of the wire.
2. Apply a linch piece of heak shrink tubing (if the terminals are of the
uninsulated type), and insert the wire end into the shank of the terminal.
3. Crimp the shank.
4. Install heat-shrink tubing if necessary.
f. INSULATING ELECTRICAL CONNECTIONS (HEAT SHRINK TUBING).
1. The preferred method of insulating electrical connections is by the use of
heat-shrink tubing.
2. To apply, cut a piece of heat-shrink tubing of suitable diameter to a 1inch length
for covering joints at terminals or connectors or to a length about 1/2 longer than the joint to be
insulated.
3. Slide the tubing over the wire before making the joint.
4. After the joint is made, slide the tubing over the joint. Using a heat gun, shrink
in place with moderate heat.
