PS Magazine - TB 43-PS-686

PS, The Preventative Maintenance Monthly

ISSUE 686

JANUARY 2010
PS Magazine - TB 43-PS-686 - Page 4 of 33
4
PS 686
JAN 10
5
PS 686
JAN 10
A good example is the rear periscope cover screws. Enough vibration can loosen
the screws. Eventually, that can lead to a broken cover. Replacement covers range
from $60 to nearly $100 a pop, so you don’t want to replace them too often.
Check the screws during your
PMCS inspection. If they’re loose,
tighten
‘em.
Replace
missing
screws with NSN 5305-00-068-
0511 and missing flat washers with
And if you do Fnd a broken
cover, make sure you order the
right replacement. There are six
periscopes on the back of the
Bradley and four different covers.
You’ll Fnd them listed as Items 2,
14, 18, and 19 in ±ig 34 of TM 9-
2350-294-24P-1.
M
echanics, it’s easy to neglect lubing some of the grease Fttings on the Bradley’s
right angle fan drive shaft. After all, for each one that’s visible, there’s another one
that’s hidden behind the shaft.
But you must lube
all
the Fttings
to keep the fan turning. If you miss
the ones in back, the shaft can seize
up or even snap. With no cooling
fan, the engine overheats.
The U-joints and shaft should
be lubed semiannually with GAA.
After
you’ve
lubed
the
front
Fttings, manually rotate the shaft
until the rear Fttings come to the
front. Then lube them as well.
Don’t
Give
Fan the
Shaft!
CraCk
M2A3/M3A3
Bradleys…
Cross-Country
Can
CraCk
Covers
M2/M3-Series
Bradleys…
Don’t
Give
Fan the
Shaft!
crewmen, a cross-
country drive in your
m2a3/m3a3 bradley
can rattle a few teeth.
it can also lead to
loose hardware that
needs to be checked
regularly.
Check for loose cover screws
I h-hoPe
theY ch-check
After lubing two front lube points,
don’t forget two on back of shaft
there goes my
right angle fan
drive shaft!
guess it
didn’t get
enough lube!
my p-p-
periscope
c-cover
screws
wHen
w-We
g-Get
b-b-bacK!
what
th-?
OW!
686.04-05.indd
1-2
12/1/09
11:48:42 AM
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