PS Magazine - TB 43-PS-709
PS, The Preventative Maintenance Monthly
ISSUE 709
DECEMBER 2011
6
PS 709
DEC 11
D
rivers, losing your brakes is the last
thing you need while tooling around in
your Bradley, BFIST or MLRS. That’s
why you need to have your mechanic do
a quick inspection of the brake equalizer
shaft, NSN 3040-01-378-7674.
It seems that the manufacturer didn’t
apply thread locking compound to some
of the 3-piece shafts. While a failure is
unlikely, it is possible that these shafts
could separate during operation,
leaving you with no brakes.
To get a replacement shaft, send an email that includes the number of shafts
requested, your shipping address, DODAAC, unit identi±cation code, vehicle serial
numbers, and POC with phone number to:
gregory.m.mendell@us.army.mil
You’ll ±nd the complete scoop in TACOM GPA 11-019:
1.±
Take a look at the vendor ID code on the shaft. If it has a code of 000405 or 002166, it’s
a 1-piece shaft and is good to go. If you see no vendor ID code or the number is other
than the two above, go to Step 2.
2.±
The older style 3-piece shafts have a wire-laced bolt that secures the linkage rod in
place. If the shaft you’re inspecting has this bolt and the lacing wire has been applied,
the vehicle is good for operation. Otherwise, go to Step 3.
3.±
Remove the cotter pin from the end of the shaft that has the castle nut.
4.±
Unscrew the castle nut and slide
the rod bearing off the shaft.
5.±
Look closely at where the
threaded stud is attached
to the equalizer shaft body.
If the stud is a separate part
that has been screwed into the
body, it’s a 3-piece shaft and should
be replaced. On a 1-piece shaft, the stud
and body will be a single, machined piece.
Check±vendor±ID±code
If±stud±screws±into±body,±shaft±must±be±replaced
M2A2/M3A2, M2A2/M3A2 ODS,
M2A2 ODS-E, M2A3/M3A3,
M7/M7A3 BFIST,
M270/M270A1 MLRS…
Brake Shaft
Needs
Inspection
That’s the
last
thing I
need Out here.
I’d better get
back to post!
Oh,
Man!
what’re you
doing back,
hernandez?
B
ack
at the
post…
I just saw
this article in
PS. Can you do
a quick brake
inspection on
my Bradley?
Mechanics, the brake
equalizer shaft is
located in the engine
compartment in front
of the driver’s station.
Here’s how to perform
the inspection…
709 06-07.indd
1-2
11/10/11
4:19 PM
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