PS Magazine - TB 43-PS-668
PS, The Preventative Maintenance Monthly
ISSUE 668
JULY 2008
2
PS 668
JULY 08
3
PS 668
JULY 08
A
brake problem isn’t high on the list of things you like to have happen with the
Stryker, mechanics.
One way you can head off those problems is by inspecting the brake line’s pipe-to-
tube elbow, NSN 4730-01-456-5913, as soon as possible.
As PN 10624771-4, the elbow
was supplied in both a long and
short
conFguration.
The
short
one’s no problem, but the long
one can interfere with the release
valve assembly and the driver’s
bulkhead floor plate. That can keep
the locking ring from engaging and
allow the brake line to pop loose.
If your vehicle has the long elbow, replace it. Ordering NSN 4730-01-456-5913
will now get you either a new style elbow, PN 169PMT-6-4, or one of the good, short
elbows, PN 10624771-4. The long elbows under that part number have been purged
from the system.
To replace the elbow, follow the procedures in maintenance task
Tube B19
Replacement: Right Front Anti-Lock Brake System Solenoid Valve to Engine
Bulkhead Elbow Fitting
in IETM 9-2355-311-13&P:
Many crewmen store their BII equipment under the seat on the right side of the
troop compartment. It’s out of the way and doesn’t appear to cause any problems.
However,
when
doing that you need
to
remember
that
the fuel cell on that
side of the turret is
unprotected. So sharp
objects like cleaning
rods, crowbars, axes,
Fles,
screwdrivers,
putty
knives,
and
other items need to
be kept clear of the
cell.
It only takes an accidental kick with a foot to shove one of these items into the fuel
cell and puncture it. ±rom there, you’re only a spark away from a Fre.
1.
Chock the wheels.
2.
Remove the composite floor plates.
3.
Drain the air reservoir.
4.
Remove the B19 tube from the elbow
Ftting on the engine bulkhead.
5.
Remove
the
elbow
Ftting,
PN
10624771-4, from the engine bulkhead.
6.
Install the new elbow Ftting, PN
169PMT-6-4, to the engine bulkhead.
7.
Install the B19 tube to the new elbow
Ftting.
8.
Pressurize the pneumatic system.
9.
Use an ultrasonic leak detector, NSN
6635-01-183-8948, to check the new
components for leaks.
10.
Reinstall the composite floor plates.
11.
Remove the wheel chocks.
Stryker…
Put the
Brakes
to Elbow
Problem
M2/M3-Series Bradleys…
Protect Fuel Cell from Punctures
Short elbow,
PN 10624771-4,
is OK…
…but long
elbow should
be replaced
whaddaya
mean I may
have a brake
problem?!
don’t worry! a little
inspection will tell
us for sure!
where to store your
stuff has always
been a problem for
combat vehicles.
but it can be
a dangerous
problem for
your bradley.
Keep sharp items away
from unprotected fuel cell
is that
fuel I
smell?
it
sure
is!
somebody
punctured
my fuel
cell!
668.02-03.indd
1-2
5/26/08
5:07:01 PM
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