Appx D
ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION (CONTINUED)
CAUTION
When hand shaping sensing element for installation do
not damage sensing element by crushing or too much
bending (allowable radius - 6 inches minimum). Ensure
1/2-inch to 3/4-inch clearance between sensing element
and personnel hearer exhaust tube.
INSTALLATION
E Secure sensing element (1) in each mounting and clip assembly (4) by
flipping clip over each rubber bushing (6) installed on sensing element (1).
1
1
1
Remove cap from straight coupling. Join connector of sensing element (1)
A Install eight rubber bushings (6) spacing equally along length of sensing
to straight coupling (3) and wrench tighten. Do not overtighten.
element (1).
G Remove cap from elbow coupling. Join connector of sensing element (1)
B
If removed, install eight mounting and clip assemblies (4) on eight engine
to elbow coupling (2) and wrench tighten. Do not overtighten.
compartment clip assembly mounts, securing each with one screw (7) and
one new lockwasher (8).
H Close louvered engine access doors.
C Install sensing element. Hand shape sensing element (1) to fit in engine
WARNING
compartment. Route sensing element correctly through front portion of the
engine compartment.
Remove locking pin in valve actuator of engine
extinguisher cylinder bottle no. 2. Turn engine T/A
D After sensing element is installed, move rubber bushings (6) on sensing
panel Maintenance switch to horizontal position.
element (1) so each will engage one mounting and clip assembly (4).
Turn MASTER switch ON to activate engine AFES.
14-21
Change 4
TM 9-2350-267-20
