PS Magazine - TB 43-PS-714
PS, The Preventative Maintenance Monthly
ISSUE 714
MAY 2012
10
PS 714
MAY 12
•±
Never
operate
the
vehicle
unless the engine fan switch is
in the ON position. That means
double-check to make sure that
the engine fan OFF indicator is
not
lit.
But the fan switch
should
be turned OFF whenever the
vehicle is fording water at
unknown depths.
•±
Never operate the engine longer than
30 seconds at full throttle if the vehicle
is
not
moving.
(For
example,
while
operating the self-recovery winch or other
auxillary equipment.) This quickly raises
the transmission oil temperature and can
damage the transmission. Watch the service
indicator light in the shift window. If it
lights up, or if the water temp gauge is near
230°F, the transmission oil is overheating.
•±
Check the battery ±uid level often in extreme heat if you have older lead-acid
batteries in your truck instead of maintenance-free batteries. Batteries do not hold
their charge well in extreme heat, so the speci²c gravity must be adjusted. See
TM 9-6140-200-13,
Operator and Field Maintenance for Automotive Lead-Acid
Storage Batteries,
for details.
•±
Watch the water temperature gauge, STOP engine indicator and coolant
temperature indicator closely for signs of overheating.
•±
Check oil levels often. Since the cooling and lubrication systems support each
other, failure of one system can quickly lead to failure of the other.
•±
Always idle the engine for
about
two
minutes
before
shutdown.
That
cools
the
engine and prevents damage.
FMTV…
Check water
temperature
gauge…
…STOP
engine
indicator…
…and coolant
temperature
indicator
Engine fan OFF switch…
…should be ON so fan can run
Keep
eye on
service
indicator
light
if you’ve ever
been in the
desert, you
know how
hot it feels
when the
temperature
soars above
100°f.
you have to
take
extra
care
to keep
yourself from
overheating.
and your fmtv
needs the
same
protection.
a little extra care from
you can prevent your truck
from overheating in extreme
temperatures.
overheating
starts when
the engine
temperature
moves past
230°f.
here’s how
to avoid
that…
if you had only taken care of
me like you have yourselves I
wouldn’t be
overheating!
now look
at me! I’m
melting!!
714 10-11.indd
1-2
4/2/12
5:30 PM
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