14-26
Change 4
TM 9-2350-267-20
ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION (CONTINUED)
REMOVAL
WARNING
Turn engine T/A panel MAINTenance switch to vertical
position. Make sure locking pin is installed in valve
actuator of engine extinguisher cylinder bottle no. 1 and
install locking pin in valve actuator of engine extinguisher
cylinder bottle no. 2.
NOTE
When removing bulkhead couplings, remove master
relay (p 6-45) to gain access to coupling
A Disconnect sensing element (1) from elbow coupling (2). Pull sensing
element away from elbow coupling (p 14-15 or 14-18).
B Loosen locknut (3). Remove elbow coupling (2) and flat washer (4) from
adapter (5) at bulkhead. Cap both ends of elbow coupling (2).
C Disconnect sensing element (6). Pull sensing element away from elbow
coupling (7) (p 14-15, 14-20 or 14-22).
D Disconnect sensing element (8). Pull sensing element away from elbow
coupling (7) (p 14-18, 14-20 or 14-24).
E Remove hex nut (9) and remove washer (10). Pull elbow coupling(7) from
bracket (11). Cap both ends of elbow coupling (7).
F
Disconnect sensing element (12) from straight coupling (13) and pull
sensing element (12) away from straight coupling.
G Disconnect sensing element (14) from straight coupling (13) and pull
sensing element (14) away from straight coupling.
H Remove locknut (15) and washer (16) from straight coupling (13). Pull
straight coupling (13) from bracket (17). Cap both ends of straight
coupling (13).