ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION (CONTINUED)
INSTALLATION
A
B
C
D
E
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 heater exhaust tube.
F
G
Install 22 rubber bushings (6) spacing equally along length of sensing
element (1).
H
Install sensing element. Hand shape sensing element (1) to fit in engine
compartment. Route sensing element correctly through front portion of
engine compartment.
After sensing element is installed move rubber bushings (6) on sensing
element (1) so each will engage one mounting and loop clamp (4).
After sensing element is installed, move rubber bushings (5) on sensing
element (1) so each will engage one mounting and clip assembly (3).
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
Before installation, clean connector fittings thoroughly
with an electrical contact cleaner (item 74, Appx D).
Remove cap from straight coupling. Join connector of sensing element (1)
to straight coupling (2) and wrench tighten. Do not overtighten.
Remove cap from elbow coupling. Join connector of sensing element (1)
to elbow coupling (3) and wrench tighten. Do not overtighten.
Install powerpack (p 3-1).
WARNING
Remove locking pin in valve actuator 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 4
TM 9-2350-267-20