PS Magazine - TB 43-PS-674
PS, The Preventative Maintenance Monthly
ISSUE 674
JANUARY 2009
3
PS 674
JAN 09
AFES CEP
During the startup sequence, when you set the AUX MASTER switch to the on
position, take a look at the AFES control electronics panel (CEP). The green LED
for SYSTEM ON should light up to indicate that the AFES is active.
You’ll also see the sensor (S1-S7),
extinguisher (E1-E3, E7, E8), and
CEP LEDs on the vehicle outline
display light up in a racetrack pattern.
It takes about eight seconds for the
CEP to go through this built-in test of
the system. When ±nished, all of the
LEDs should go out.
If one or more of the sensor LEDs is
red, it indicates that the corresponding
sensor in the vehicle has failed or is
disconnected.
Sensors
After every operation, you should check the AFES ±re sensors in the troop and
engine compartments. If the sensors are dirty, wipe them with a soft, clean cloth. If
the sensors are still dirty, your mechanic can give them a more thorough cleaning.
Check the wiring connected to the sensors, too. If you spot any problems—like
cuts, wear or exposed wiring—tell your mechanic.
Extinguisher Bottles
Always check the ±re extinguisher
bottle gauges before operation. Make
sure the gauge needle is within the
green zone for each bottle.
Next, take a look at the electrical
cables connected to the ±re bottles.
If
they’re
loose,
disconnected,
or
damaged, the bottle won’t ±re properly
when needed. Tell your mechanic.
•
Steady illumination of the LED is an indication
that the ±re extinguisher bottle is missing,
disconnected, or has low pressure.
•
An LED that flashes regularly means the
bottle has been discharged.
•
An LED that flashes irregularly means the
bottle received a signal to discharge, but did
not go off.
If the CEP LED lights up red, there’s a
problem with the panel itself.
Next, check the toggle switch covers for
the troop and engine compartment manual
discharge switches. Both covers should
have safety seals in place to help prevent
accidental tdischarge of the extinguishers.
Stryker…
PM Cools Off
AFES Problems
crewmen, how well you take care
of your stryker’s automated fire
extinguishing system (afes) will
determine how well it takes care
of you in the event of a fire.
here’s
what to
look
for…
one or
more
extinguisher
leds that
light up
after
the test
means one
of three
things…
man,
that fire
seemed to come
out of nowhere!
yeah!
it’s a
good thing
that we did
our afes pm!
Red light on CEP’s vehicle outline display?
Extinguisher’s gauge
needle should be
in green zone
Check extinguisher cables
for looseness or damage
if you
see
any
of these
problems,
your
Stryker is
NMC. Call
in your
mechanic
for help.
674.02-03.indd
1-2
12/5/08
2:19:50 PM
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