PS Magazine - TB 43-PS-730
PS, The Preventative Maintenance Monthly
ISSUE 730
SEPTEMBER 2013
6
PS 730
SEP 13
7
PS 730
SEP 13
C
rewmen, proper fring pin maintenance is crucial to making sure your M777A2
howitzers keep throwing rounds down range.
Just Follow these easy steps so your howitzer goes
Boom!
instead oF
Click.
1.±
Clean and remove corrosion from the firing pin, retainer, spring and cavity with CLP,
NSN 9150-01-054-6453, and crocus cloth, NSN 5350-00-268-3116.
2.±
Remove excess CLP with a clean wiping rag, NSN 7920-00-205-1711.
3.±
If there’s burring in the cavity, remove it with a hand file.
4.±
Replace the firing pin if the tip is deformed, bent or broken. Replace the retainer if
it’s kinked or deformed, and replace the spring if it’s kinked or broken.
A new and improved fring pin is
in the works that will eliminate the
retainer and improve reliability.
And iF your M777A2 does go
Click.
instead oF
Boom!
when it
shouldn’t, Follow the Misfre and
Checkfre Procedures in Chapter 2
oF TM 9-1025-215-10.
C
rewmen, riding around in a noisy Bradley can be tough on your hearing iF you’re
wearing the wrong headset. You gotta protect your hearing just as careFully as you
protect your vehicle and gear.
That’s why the Bose Triport
®
tactical communication head-
set, NSN 5965-01-521-0941, is
not
approved For the Bradley.
It’s designed to be worn under
the ACH and won’t provide
enough hearing protection.
Like it says in TM 9-2350-
294-10-1,
the
only
helmet
approved For the Bradley is
the CVC with automatic noise
reduction. It protects you From
loud noises up to 115 decibels.
The
CVC
is
designed
specifcally
For
armored
combat
vehicles.
It
also
provides
ballistic
protection
and lets you talk to each other
over the intercom.
So always use the CVC.
Your hearing is way too important to trust to any ol’ headset!
M777A2 Towed Howitzer…
F
iring
P
in
PM
K
eeps
R
ounds
On
T
arget
L
i
s
t
e
n
u
p!
CVC
The
ONLY
Approved Bradley Headset!
Replace
bent
firing
pin
Deformed
firing pin
can cause
misfires
Replace broken or
deformed retainers
Why aren’t
you going
bOom?
Because you
haven’t
done
PM on my
firing pin!
Bose Triport
®
tactical
communications
headset is NOT
authorized for
Bradley
CVC with
automatic
noise
reduction
protects
you from
hearing
loss
Where do you
think
you’re
going?
Whadaya
mean? We have
a
mission!
Not
wearing
that!
Only
the
CVC is
autho-
rized for
Bradley
crewmen!
730 06-07.indd
1-2
8/2/13
10:27 AM
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