PS Magazine - TB 43-PS-628

PS, The Preventative Maintenance Monthly

ISSUE 628

MARCH 2005
PS Magazine - TB 43-PS-628 - Page 26 of 33
L
ack of PM attention can stop your Fox NBC vehicle dead in its tracks. Here are
two easy ways to keep your Fox on the run.
Warm Up MM1
When you turn on the MM1 spectrometer, let it warm up and finish self-testing
before you start taking readings. Otherwise, those readings will be false. It usually
takes 10 minutes for the MM1 to warm up.
Don't hold the confidence
check bottle sampler on the
MM1 probe or push in the cal-
ibration gas reservoir button for
more than 5 seconds. If you do,
you could saturate the spec-
trometer and then you have to
spend 15 minutes clearing it.
Clean the Winch
When you do your weekly
PMCS, eyeball the winch cable
for mud. If you spot any, clean it
off with a rag. Mud makes the
winch sensors think something's
wrong with the cable. And then
you can't unwind the winch cable.
PS 628
MAR 05
48
M17-Series Decon…
I
f the M17-series decon's inlet and outlet assemblies are left open when the hoses
are removed, dirt and sand get in the water pump and eventually destroy it.
Save the water pump by
keeping the inlet and out-
let capped when the hoses
aren't connected. Order a
1 1/4-in quick-disconnect
cap for the inlet with NSN
a 1-in quick-disconnect
cap for the outlet with
Keep the caps in the hose
storage case when they're
not installed.
If sand or dirt does
freeze the water pump,
run water from a hose
through the outlet while
you try to turn the water
pump pulley back and
forth by hand. That often
will free the pump.
PS 628
MAR 05
49
Fox NBC Vehicle…
Let MM1
warm up for
10 minutes
before
taking
readings
Check
winch
cables
for mud.
Clean
mud off
I’m ready
to run down
chemical
threats
thanks to pM!
Cap inlet
and outlet
assemblies
Turn water pump
pulley by hand
while flushing
with water
uh-oh!
there goes
another
water pump!
you guys need
to keep my
outlet and inlet
capped
when
I’m just sitting!
11/4”
1”
Keeping Fox on the Run
CAP INLET and OUTLET
628.48-49(C)
1/27/05
6:31 PM
Page 1
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