o You must now remove the threaded fittings (Item 27) which hold the
cables to the crew fire extinguishers no. 3 and no. 4 and engine
fire extinguisher no. 2.
Now remove the cables from the
o The cable for crew extinguisher no. 3 can now be removed from the
Remove and replace strap assemblies as needed when
removing the cable from the vehicle.
straps must be removed from crew fire extinguisher no. 4 and five
from engine fire extinguisher no. 2. This task is accomplished by
removing screw (Item 28), lockwasher (Item 29), and the flat washer
(Item 30) from each cable strap (Item 31) as required.
o With the straps removed, you are free to remove the cables for crew
fire extinguisher no. 4 and engine fire extinguisher no. 2 from the
two brackets (Item 32) which are located under the auxiliary power
Use the reverse procedures of the removal process to install the removed
assemblies. Ensure you use new lockwashers during the installation process.
When you are certain the AFES MDS components have been installed correctly,
the AFES must be reactivated.
Perform Test of AFES.
During this part of the subcourse, you will learn the procedures used to
test the AFES.
Results of tests performed on AFES components, after
installation procedures have been accomplished, will indicate how well you
have performed your responsibilities.
It should be noted that some differences exist between vehicles 1 through
344 and vehicles 345 and above insofar as AFES test procedures are
Since most differences are so slight, the test procedures for
vehicles 1 through 344 will be used for purposes of this subcourse.
However, when actually performing maintenance or repair, refer to TM 9-2350-
267-20 for procedures applicable to the series vehicle you may be working
Testing of the crew fire detection system will be the first to be addressed.
Use Figure 41 and the following procedures to prepare the crew AFES for