Figure 3-3.--Safety-wiring electrical connectors.
Figures 3-2 and 3-3 show examples of safety-
wiring techniques that you should follow. The
figures do not show all possible safety-wiring
combinations; however, safety-wiring practices
should conform to those shown. Consult specific
manufacturers' technical manuals for approved
materials and techniques to use in any given
application. You will find step-by-step procedures
for safety-wiring in Propulsion Gas Turbine
Module LM2500, Trouble Isolation, volume 2,
part 3, S9234-AD-MMO-050/LM2500, section
8.1.
WRENCHES
While performing your maintenance pro-
cedures, you will use a variety of wrenches. This
Figure 3-4.--Crowfoot, flare nut, and torque adapter
section is about the recommended wrenches you
wrenches.
need to be familiar with while working on the gas
turbine engine (GTE). You will also learn
about wrenches and hand tools that are not
maintenance procedures. You can use it to gain
recommended for use on the GTE.
accessibility to hard to reach areas where other
wrenches are difficult to use. The head of
Recommended Wrenches
the wrench is designed like an open-end
wrench. However, the other end is designed to
The only hand tools you should use on GTEs
accommodate accessories, such as extensions,
are chrome-plated, nickel-plated, or unplated
breaker bars, and torque wrenches. Crowfoot
hand tools. The CROWFOOT wrench (fig. 3-4,
wrenches come in a wide variety of sizes like those
view A) is a very handy tool to use for
of the open-end type of wrenches.
3-3
