ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION
INSTALLATION
CAUTION
CAUTION
When hand shaping sensing element for
Before installation, clean connector fittings
installation, do not damage sensing element
thoroughly with an electrical contact cleaner
by crushing or too much bending (allowable
(item 74, Appx D).
radius - 6-inches minimum). Ensure 1/2-inch
to 3/4-inch clearance between sensing element
F
Remove cap from straight coupling. Join connector of
and personnel heater exhaust tube.
sensing element (1) to straight coupling (2) and tighten.
A
Install 22 rubber bushings (5) spacing equally along length
G Remove cap from elbow coupling. Join connector of sensing
of sensing element (1).
element (1) to elbow coupling (3) and tighten.
B
If removed, install 22 mounting and clip assemblies (3) on 22
H
Install powerpack (p 3-1).
engine compartment clip assembly mounts, securing each
with one screw (6) and one new lockwasher (7).
C
Install sensing element. Hand shape sensing element (1) to
fit in engine compartment. Route sensing element correctly
through front portion of engine compartment.
D
After sensing element is installed, move rubber bushings (5)
on sensing element (1) so each will engage one mounting and
clip assembly (3).
E
Secure sensing element (1) in each mounting and clip
assembly (3) by flipping clip over each rubber bushing (5)
installed on sensing element (1). Secure clip using quarter-
turn fastener (4).
CAUTION
Remove locking pin in valve actuator guard of
engine extinguisher cylinder bottle no. 2 (p
14-28). Turn engine T/A panel Maintenance
switch to horizontal position. Turn MASTER
switch ON to activate engine AFES.
14-25
Change 3
TM 9-2350-267-20
