PS Magazine - TB 43-PS-615
PS, The Preventative Maintenance Monthly
ISSUE 615
FEBRUARY 2004
Facts About Fuels
JP-8 is the preferred fuel for the heater. It burns clean and extends the life of the
burner assembly. That means fewer unscheduled maintenance tasks to worry with.
If you don’t have JP-8, you can use diesel fuel in the heater. But you need to know
a few things about diesel:
Diesel burns dirtier than JP-8. It leaves
more carbon residue in the burner, espe-
cially on the wick, around the glow plug
and in the burner chamber.
More carbon calls for more cleaning.
If you use diesel fuel, expect to clean the
burner every 250 hours (or about 10 days
of continuous operation). Use JP-8 and
you’ll need to clean the burner only if the
system fault light shows a code 4, burner
maintenance.
Carbon building up around the glow plug increases the chance that the plug will
overheat and burn out. So much for staying warm on a cold winter night.
Cleaning
Whether you use JP-8 or diesel in your heater, sooner or later you may have to
clean the burner assembly. That’s why you need to get the new Simplified Burner
Cleaning service bulletin (Instruction Sheet PN 5-13-5647). It’s available online at
PS 615
FEB 04
56
Work package 0009
of TM 10-4520-262-
12&P describes
two ways
to do
just that…
1.
Open the tent door
and cool the inside.
Diesel fuel leaves more carbon in burner
2.
If the cycling continues after cooling off the inside, dis-
connect the air supply duct from the tent’s air duct open-
ing. Keep the air supply duct attached to the heater.
That’ll help keep rain and snow from getting inside the
heater. Allow the heater to draw the cooler outside air
until the cycling stops. Then reattach the air supply duct
to the air duct opening.
Burner Cleaning Made Simple
The convective space heater, NSN 4520-01-431-8927,
produces forced hot air to keep your tent or shelter cozy.
You’ll stay warm as long as you understand the link
between the heater’s fuel and a clean burner assembly.
make
mine
jp-8!
the burner
cleaning
bulletin…
“…shows
you how to
clean the
burner in
the field.”
You’ll
also need
to reduce
the on/off
cycling.
Once you reach the website, click
on SHC, Simplified Burner Cleaning
to download the bulletin. If you’d pre-
fer a hard copy, phone (440) 248-
6111, Ext 222, or DSN 256-5592.
Used along with the heater’s techni-
cal manual, TM 10-4520-262-12&P,
the bulletin offers a simple way to
clean and inspect the burner in the
field. This information will be includ-
ed in the next change to the TM.
Besides needing the TM to clean
the burner, you’ll also need the wire
brush, NSN 7920-00-291-5815, found
in the general mechanic’s tool kit, or a
multi-tool, NSN 5110-01-394-6252.
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