21. BACKSHELL REMOVAL Backshells are used to
17. MIL-DTL-38999 SERIES I AND SERIES II
protect, shield, and add support to connectors. When
modification or repair to the connector is necessary the
backshell must be removed. Proceed using the
18. The connector accessories in this section pertain to
Series I and Series II connectors which are the same
and interchangeable. Crimp tools, insertion tools,
a. Select the correct adapter tool Tables 2 or 3 by
removal tools are not covered in this section. These
series, T-handle, and strap wrench (Figure 11).
tools are utilized in connector buildup and are to be
found in NAVAIR 01-1A-505-1 WP 013, 020, 021 and
b. Mate adapter tool to connector. Ensure white
022. WP 024 00 pertains to accessories and tools used
dot on adapter tool lines to master key of connector.
on the back side or wire side of the connector to include
Spinning tool on connector will cause damage to tool
and/or connector (Figure 12).
Spinning tool on connector will cause damage
Cable Clamps and Strain Reliefs.
to tool and/or connector (Figure 12).
Potting Boots and Rings.
Install strap wrench around part to be
removed. Draw strap tightly through locking link.
Shrink Boots and Adapters.
Backshell will rest on nose of wrench (Figure 12).
d. Insert T-handle into socket of adapter tool to
provide holding (Figure 12).
EMI/RFI Grounding Terminators.
Non-Environmental EMI/RFI Backshells.
counterclockwise as viewed from connector rear
Environmental EMI/RFI Backshells.
Secure backshell and associated hardware to
19. SPECIAL TOOLS. Connector backshells come in a
bundle to prevent loss.
wide variety of types depending on the application.
To install backshells or accessories adapter tools and a
22. BACKSHELL INSTALLATION. Upon completion
strap wrench are needed. Adapter tools are used to
of maintenance or modification the backshell must be
hold the connector during backshell installation and
replaced. Proceed using the following steps:
removal. The strap wrench is, used to tighten or loosen
the backshell. Special tools are used so as not to damage
Remove tape from backshell and wire bundle.
connector shells, wires, or accessories.
b. Start backshell on connector by hand to
20. ADAPTER TOOL SELECTION. To select the
prevent cross threading. Continue tightening by hand
proper tool, the shell size, and series, the type of either
until the backshell serrated teeth engage the teeth on
plug, or receptacle needs to be known. Select the
the back of the connector.
applicable tool for Series I from Table 2, and Series II
from Table 3. The adapter tool is illustrated (Figure 10).