PS Magazine - TB 43-PS-724
PS, The Preventative Maintenance Monthly
ISSUE 724
MARCH 2013
12
PS 724
MAR 13
13
PS 724
MAR 13
DRS Sustainment Systems, Inc.
McDaniel & Stevens
ATTN: Chantele Adams
Bldg 6
West Plains, MO 65775
(417) 257-6216
M
echanics, keep an air pressure gauge handy when it comes to the SUSV’s steering
damper.
Page 8-29 of TM 9-2350-285-20 (Jun 90, w/Ch 4, Jan 01) says to pressurize the
accumulator between 29-102 psi.
But that range is far too wide.
The
correct
range
is
55-85 psi, like it says on
Page 2-10 of the TM.
Air
pressure of at least 55 psi
in
the
accumulator
will
prevent damper bottoming,
which
causes
steering
component
damage
and
rough handling.
More than
85 psi can overstress seals
and steering lines.
If drivers complain that a SUSV rides or steers hard, and you Fnd the air pressure
is between 55-85 psi, check out the accumulator’s hydraulic ±uid level.
That
information is found in Step 24 on Page 8-29 of the TM.
Important!
M1200 Armored Knight FSV, M707 Knight FSV…
Return Spreader Bar for Mod
SUSV…
Steering Damper
Pressure
Important!
does your unit have any
m1200 armored knight or
m
7
0
7
knight fire support
vehicles?
then you need to locate and turn
in
me,
the
spreader bar assembly,
nsn 3940-20-001-0168, that came
with your vehicle during fielding.
the spreader bars need to
go back to the manufacturer
for a
safety modification.
while you’re at it, send an email to the tacom tech assist team at:
tacom-lcmc.ilsc_techassistance@mail.mil
include your
unit Id and
a poc.
that will help pm
hbct keep an updated
list of all spreader
bar assemblies that
have been modified.
they can also help
with any shipping
questions.
once
modified,
the
spreader
bar
assembly
becomes
a special
tool with
a new nsn
of 3940—
20-006-
8323.
ship the old assembly,
free of charge,
to…
Check damper
accumulator air
pressure here
man! this
sh-sure is
a
r-Rough
r-Ride!
a ch-check of the
air p-pressure in
my steeRing duh-
damper would
smooth things
ow-out!
724 12-13.indd
1-2
1/30/13
4:36 PM
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