ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION
(CONTINUED)
INSTALLATION
E
Secure sensing element (1) in each mounting and clip
assembly (4) by flipping clip over each rubber bushing (6)
CAUTION
installed on sensing element (1). Secure clip using quarter-
turn fastener (5).
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 heater exhaust tube.
A
Install 24 rubber bushings (6) spacing equally along length
F
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 24 mounting and clip assemblies (4) on 24
G Remove cap from elbow coupling. Join connector of sensing
engine compartment clip assembly mounts, securing each
element (1) to bulkhead elbow coupling (2) and tighten.
with one screw (7) and one new lockwasher (8).
Close battery and louvered engine access doors.
C
Install sensing element. Shape sensing element (1) by hand
to fit in engine compartment. Route sensing element
correctly through front portion of engine compartment.
D
After sensing element is installed, move rubber bushings (6)
on sensing element (1) so each will engage one mounting and
clip assembly (4).
CAUTION
Before installation, clean connector fittings
thoroughly with an electrical contact cleaner
(item 74, Appx D).
WARNING
Remove locking pin in valve actuator guard
of engine extinguisher cylinder bottle no. 2 (p
14-28). Turn engine T/A panel Maint-
enance switch to horizontal position. Turn
MASTER switch ON to activate engine
AFES.
14-19
Change 3
