PS Magazine - TB 43-PS-599
PS, The Preventative Maintenance Monthly
ISSUE 599
OCTOBER 2002
PS 599
OCT 02
5
M113A2/A3 FOV…
D
rivers, the canvas cover for your vehi-
cle’s intake and exhaust grilles is made to
keep ice, snow and other debris out of the
engine compartment when the vehicle’s
not in use.
The cover is
not
made to help the engine
warm up faster during cold weather.
Some operators keep the grilles covered
anyway. They figure the faster the engine
warms up, the sooner the mission will be
accomplished.
Not true! In fact, the mission may not get accomplished at all. Leaving the cover
in place heats the engine too fast and can burn it up.
Also, fumes from the engine compartment that would normally be vented through
the exhaust grille are forced into the driver and crew compartments. That’s a dead-
ly proposition.
Always roll the cover
back from the exhaust
and intake grilles before
starting your vehicle.
Secure the cover in place
with the straps provided.
PS 599
OCT 02
4
MLRS Carrier…
T
he more your MLRS’ personnel heater is used, the more dust and dirt will build
up inside.
Enough debris can lock up the exhaust fan. That burns out the heater’s 6.3-amp
fuse and shuts down the heater. Not knowing what’s wrong, most operators send the
heater in for repairs.
The fix is simple and easy:
1.
Remove the air duct hose, NSN
4720-00-535-7615, from the heater.
2.
Vacuum the accumulated dirt and
dust around the fan.
3.
Turn the fan back and forth to
loosen dirt at the base of the fan and
vacuum again.
4.
Replace the 6.3-amp fuse, NSN
Of course, you can usually prevent
the problem by cleaning the fan at the
end of winter and again when the tem-
peratures start to fall. Making sure the
air inlet screen, NSN 2510-01-264-
0153, is properly installed in the cab
will help keep out debris, too.
Clean dust
and dirt
from fan
Replace
burned-
out fuse
Roll back cover before starting engine
Canvas cover keeps
out the elements
let’s get that
bad heater out
and send it in
for repair.
my heater’s
fine!
it just
needs a
little
cleaning
and a
new fuse!
It sure
is cold!
maybe I oughta
leave your intake
and exhaust
grille
covered
during startup!
sure,
If
you want to
suffocate
yourself and
burn up my
engine.
599. 04-05 (C)
8/28/02
2:56 PM
Page 1
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