TM-9-2350-256-10
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
OPERATOR'S MANUAL
OCTOBER 2014
TM-9-2350-256-10 - Page 264 of 796
ALARM CONTROL BOX (ACB) GENERATED VEHICLE HORN TONES
AFES Engine Compartment Fire Warning
In the event an engine fire warning is triggered by one or more fire sensors in the engine compartment, the signal
from CEP to ACB activates horn for one tone per second, which continues for the duration of fire signal plus
three seconds to yield a minimum of three cycles.
AFES BIT Fault
When an AFES BIT fault is recognized by the CEP, it generates a short pulse to the ACB which, correspondingly,
sounds the vehicle horn once every 10 seconds to remind crew that fault exists.
AFES Initiated BIT (IBIT) for ACB Fault
Holding the CEP TEST button depressed for greater than five seconds will cause the CEP to exercise the ACB
fire warning circuit, activating the horn once a second for three seconds.
END OF TASK
AFES CEP MANUAL OPERATION
NOTE
The manual operation of AFES at CEP is solely for engine compartment ENG 1
(E1 and E2) and crew compartment MECH (E5). Engine compartment ENG 2 (E3 and E4)
are not electronically controlled by CEP. These events will be recorded in CEP History.
1.
If fire is present in the engine compartment:
a.
Raise ENG cover (Figure 2, Item 3) protecting ENG 1 switch (Figure 2, Item 2) with enough force to
break wire seal (Figure 2, Item 1).
b.
Toggle ENG 1 switch (Figure 2, Item 2) to discharge ENG 1 (E1 and E2) extinguishers.
c.
Exit vehicle immediately.
Figure 2.
CEP Manual Operation – Engine Compartment Extinguishers.
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