PS Magazine - TB 43-PS-716
PS, The Preventative Maintenance Monthly
ISSUE 716
JULY 2012
11
PS 716
JUL 12
Tactical
Vehicles…
check the coolant
level often. before
you roll, while the
engine is still cool,
make sure the coolant
is between the add
and fill marks.
if it’s low, add
coolant to bring
the level up. never
overfill, though. when
the engine heats up,
the extra coolant
will overflow.
add coolant
only
while the
engine is cool.
adding coolant
to a hot engine
can crack the
engine block or
burst a seam in
the radiator.
a 60-40 mix
of antifreeze
and water
is best, but
keep
at least
a 50-50 mix
to raise
the boiling
point of the
coolant so
it won’t boil
away like
plain water.
test the
radiator with
a radiator
testing kit,
nsn 4910-00-
7
28-822
7
.
https://
www.logsa.
army.mil/
psmag/
archives/
PS2008/
667/667-
14-16.pdf
engines crank
out a lot of
heat…
…and summer or
desert temperatures
just pile on
more.
your vehicle’s cooling
system must
knock down
or
control heat
to keep
the wheels rolling.
even
small
problems in
cooling systems, like
low coolant levels or
cracked hoses…
…can quickly
turn into
big
ones.
here’s how
to help your
engine keep
its
cool…
to check 2
1
/
2-ton or larger
trucks, order the adapter that
comes with nsn 4910-01-44
7
-5586.
looks
like mine
can!
well,
obviously
mine
can’t!
Check coolant level
in radiator…
Plain water…
50% antifreeze
50% water
BOILING POINT 212°
BOILING POINT 226°
BOILING POINT 230°
60% antifreeze
40% water
…or surge tank
dude!
wait for
me to
cool down!
for step-by-step instructions
on using the radiator testing kit,
see pages 14-16 in ps 66
7
:
heat test
your
can YOUR
vehicle pass the
HEAT TEST?
716 10-11.indd
1-2
5/25/12
11:23 AM
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