PS Magazine - TB 43-PS-702
PS, The Preventative Maintenance Monthly
ISSUE 702
MAY 2011
19
PS 702
MAY 11
Leaking can occur if the tanker sits for a long time after purging and continues to
be exposed to purging residue. The coupling gaskets on the tanker begin to dry out,
creating leaks.
These leaks show up at the pipe couplings at the tank and tanker control module
and gaskets in the back of the tanker after the tanker is Flled again. Here’s how to
prevent this from happening.
Proper Post Purging PM
Read Your References
You may want to eyeball MIL-STD-3003B,
Department of Defense Standard
Practice, Vehicles, Wheeled: Preparation for Shipment and Storage Of,
for more PM
help. And reference these HEMTT IETM’s instructions on preparation for storage:
EM 0288, TM 9-2320-326-14&P; EM 0289, TM 9-2320-325-14&P; and EM 0290,
TM 9-2320-279-14&P.
By the way, stainless steel and aluminum tanks
don’t
have the requirement to add
preservative oil. For aircraft tankers, preservative is considered a contaminant.
Taking Care of Tankers
HEMTT…
Taking Care of Tankers
Without proper care,
HEMTT
tankers that have been purged
and shipped from overseas may
give you trouble.
if you see signs of
leaking, you’ve got
trouble!
Don’t leave
tankers dry for a
long time after a
purge.
proper
post
purging pm
involves
some
efFort!
Test tankers
that are shipped
from overseas as
soon as possible.
Be sure to use the -10 TM
to perform PM on
all
tankers returning to
service.
Also, test the tanker
module pumps and pipes
by adding 300 gallons
of fuel to the tanker
and re-circulating the
fuel.
This will remove purging
solution residue, wet
the seals with fuel,
and show leaks before
the tank is completely
filled.
This includes inspecting
all assemblies,
subassemblies, and
accessories to be sure
they are in proper
working order.
if you
find leaks,
repair them
following
guidance in
the IETM for
Tanker Piping
Removal/
installation.
follow
all
of
the Warnings,
Notes and
Cautions.
The pipe couplings in the
module and under the tank are
available in a kit that comes with
NSN 5330-01-5
7
8-5493. The kit
includes all of the gaskets and
seals used on the tanker…
…Or you can
just order
the specific
couplings and
gaskets you
need!
702.18-19.indd
1-2
3/28/11
10:31 AM
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