PS Magazine - TB 43-PS-617
PS, The Preventative Maintenance Monthly
ISSUE 617
APRIL 2004
M2/M3-Series Bradleys, MLRS Carrier…
S
ome mechanics don’t pay attention to the usable on codes (UOC) when ordering a
new fuel pump for a Bradley or MLRS.
Since there are four different pumps available, they have only a one-in-four chance
of picking the right one—not the best odds. Choose wrong and your vehicle has fuel
flow problems.
Even if you
think
you’ve ordered the right
pump, you should always
double-check the engine
configuration to make sure
before installing it. Here’s
the correct match-up:
PS 617
APR 04
5
M1-Series Tanks…
W
hen’s the best time to bleed your tank’s recoil system, crewmen? Unless you like
living dangerously, you’d better do it prior to firing exercises and every time the
recoil system is drained and refilled.
If the FRH level is low it could be because of air bubbles or debris in the replen-
isher that stops the flow. This could cause the main gun to recoil too far. When that
happens, the cannon shears its retaining bolts and slams into the ammo compart-
ment. Bleed the recoil system like this:
TM Note
The diagram on Page
2-496 of TM 9-2350-
264-10-1 and Page 2-480
of TM 9-2350-367-10-1
shows the wrong loca-
tion for the recoil system
bleed plug. This will be
corrected in a future
update to the TMs.
I don’t get it! I
just installed a
new fuel pump!
yeah
-COUGH-
but it doesn’t
-sputter-
match
my engine!
MLRS A0, Bradley A0
MLRS A1
Bradley A2, A2 ODS,
Linebacker, BFIST
Bradley A2, A2 ODS,
A3, Linebacker, BFIST
500 HP
500 HP Centry
600 HP
600 HP WSR
Vehicle
Engine
Pump NSN
The -10-1 TMs tell you to use a 15mm socket, but
that’s not quite the right size. Use the 9/16 inch sock-
et, NSN 5120-00-189-7932, listed in the BII instead.
The 15mm socket will be removed from the BII during
a future update.
5.
Allow all the air to escape until you see FRH start-
ing to flow from around the bleed plug.
6.
Retighten the bleed plug. Wipe off any FRH with a
rag and dispose of it properly. Recheck the replenish-
er level and refill if necessary.
1.
Make sure you’re wearing long sleeves, gloves, goggles and a face shield. FRH
contains a chemical that can cause paralysis if it’s ingested. FRH can also be
absorbed through the skin, so wash thoroughly with soap and water if you get any
on you.
2.
Ensure replenisher is full.
3.
With turret power off and the
system hydraulic pressure reduced
to zero, manually depress the gun
tube below level.
4.
Loosen, but don’t remove, the
bleed plug below the gun mount
ID plate.
Loosen bleed plug
to let out air
is this
gonna
hurt?!
don’t worry!
I’m just gonna
bleed a little
air from your
recoil system!
Match Fuel Pump to Engine
617. 04-05 (C)
2/27/04
4:03 PM
Page 1
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