Bell OH-58A - Page 181

TM 55-1520-228-BD
ELECTRICAL AND AVIONICS SYSTEM
4. Shrink sealing sleeve over crimp
with heat gun.
Use reflector, tem-
perature set at 900°F.
5.
Record BDAR action taken. When
mission is complete, as soon as
practical, repair the equipment/system
using standard maintenance procedures.
OPTION 2: Terminal Lug Splicing.
LIMITATIONS:
Only to be used on wire
sizes AWG No. 10 and smaller.
This is a
temporary repair.
PERSONNEL/TIME REQUIRED:
1 Soldier
15 Minues Per Splice
MATERIALS/TOOLS REQUIRED:
Terminal Lug Barrel
Insulating Sleeve and Tie Wraps or
Heat-Shrinkable Insulation
Crimp Tool
PROCEDURAL STEPS:
1. Select a terminal with a barrel
large enough to accommodate both wires.
2. Cut off terminal lug tongue.
3. Prepare wire ends.
4. Slip an insulating sleeve 1 inch
longer than terminal lug barrel over the
end of one of the wires, and insert wire
end into the barrel as shown in Figure
11-3.
5. Crimp barrel in center.
6. Slide insulating sleeve over the
terminal lug barrel splice, and secure
in place by using tie wraps or heating
if heat-shrink sleeve is used.
7.
Record BDAR action taken. When
mission is complete, as soon as
practical, repair the equipment/system
using standard maintenance procedures.
OPTION 3: Split Bolt Splice Connectors.
LIMITATIONS: Only to be used on wire
sizes AWG No. 4 through No. 10. Inspect
after every flight.
PERSONNEL/TIME REQUIRED:
1 Soldier
10 Minutes
MATERIALS/TOOLS REQUIRED:
Strippers or Knife (item 10, Appx B)
Heat–Shrinkable Tubing
(item 10, Appx B)
Split Bolt Splice Connector
(item 10, Appx B)
Heat–Shrinkable Tape (item 10, Appx B)
Reflector (item 3, Appx B)
PROCEDURAL STEPS:
1. Slide a 3 inch length of large
diameter, heat-shrinkable tubing over
one of the wires to be spliced.
2. Strip wires and insert into the con-
nector from opposite sides.
NOTE
Conductors may be folded back one
or more times to fill the connec-
tor opening and provide firm
clamping.
Strip wires 1/2 inch if folding
back is not required.
Strip wires 1-1/4 inch if single
folding back is required.
Strip wires 2-1/2 inch if double
folding back is required.
3. Tighten nut securely.
4. Wrap the splice with heat-shrinkable
tape. Cover all metal parts and overlap
onto insulation.
5.
Heat the end of the tape to soften
the adhesive layer and press it into
position while warm. Use reflector
(located in A5 of wiring kit), tem-
perature set at 900°F.
11-9