PS Magazine - TB 43-PS-599
PS, The Preventative Maintenance Monthly
ISSUE 599
OCTOBER 2002
forming.
densation and lets you wipe out all moisture.
PS 599
OCT 02
21
M17-Series Decon, M12 Decon…
b
oth the M17 and M12 decons often sit for long periods without getting any use.
Sitting in cold weather can produce unpleasant surprises, like water freezing in the
tanks and pumps and causing serious damage. But a little PM can freeze out freez-
ing problems.
Freeze protection is easier with
the M17 because you can just run
antifreeze through it. Mix 1 gallon
of antifreeze, NSN 6810-01-181-
7121, to every 2 gallons of water
and fill the M17's tank with the
mixture. The procedure begins on
Page 2-55 in TM 3-4230-228-10.
It's a different story with the
M12. You can't use antifreeze in it
because it will mix with bleach
and produce a toxic gas that can
create enough pressure in the tank
to rupture seals and valves.
The solution is general purpose
lubricating oil (PL-S), NSN 9150-
00-231-6689. First, park the M12
on level ground and drain all water
from the main tank, prime deter-
gent tank and pump. Then mix 3
pints of oil with 3 gallons of water.
Pour the mixture into the detergent
tank and open Valve 4. Run the
pump 30 seconds, then drain the
pump. Close Valve 4, but leave the
pump drain valve open. Now the
pump won't freeze.
PS 599
OCT 02
20
Mortars…
Defrost
COLD
Problems with PM
Mix 1 gallon
of antifreeze
to every 2
gallons of
water
Drain tanks
and pump
Pour water/oil
mixture in
detergent
tank… and
open Valve 4
a little pm
would have kept
these guys from
freezing solid!
k.o. the
cold…
unless you first
defrost cold
problems with
PM
. Here's how…
bore dry
Keep fire
instruments
in cases
Cold can even
freeze something
as powerful as
your mortar.
..
599. 20-21 (C)
8/24/02
4:33 PM
Page 1
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