PS Magazine - TB 43-PS-683

PS, The Preventative Maintenance Monthly

ISSUE 683

OCTOBER 2009
PS Magazine - TB 43-PS-683 - Page 25 of 33
It could be that this job has already been done on your
generator. Check the top of the cap screws. If the top has a
raised W.T 10.9 and is yellow, you’re good. If it has a raised
FS 8.8 and is black, you’re bad. Replace the hardware!
46
OCT 09
PS 683
Replace the current
muffler bracket mounting
cap screws.
Don’t reuse the lock washers.
Get new ones with NSN 5310-
01-476-9079.
If you keep a collection of PS magazines, and we recommend you
do, copy this article and put it between
Pages 44 and 45 of PS 676
.
Replace this black screw…
…with this
yellow screw
Add a new flat washer,
each cap screw. These washers
are black and thicker than the
old yellow washers
ReplaCe
the 3-
k
w tqg
Muffler Hardware
So, on Pages
44-45 of PS 6
7
6 we
recommended using
stronger muffler-
mounting hardware.
This vibration
loosens the
mounting
hardware
and leads to
cracks in the
exhaust pipe.
A crack in
the pipe or
muffler
can lead
to exhaust
system fail-
ure, which
means
more
smoke and
noise.
That’s what
your
enemy
wants, but
not you.
that was
a
good
recommendation
then… and it
still is.
the rest of
the info in our
original story
is
good!
The muffler on the
3-kW tactical quiet
generator takes quite
a shaking while the
generator is running.
Look
for
these
raised
letters
Black
and
raised?
Replace
them
However, we told you to replace
the current muffler bracket
mounting cap screws—M6, 8.8—
with cap screws—M6, 10.9—
That info is bad!
That NSN brings
an 8mm bolt
when you need
a 6mm bolt.
So, order bolt,
NSN 5305-
01-300-6266,
instead.
That’s
the right
bolt for the
job!
PS is not the
only publica-
tion that has
the wrong bolt
listed. So does
your TM.
Change item 16
on Page C-103 in
TM 9-6115-639-
13&P and item
7
on Page C-9 by
deleting the
current nsn
and adding this
new one.
683.46-47.indd
1-2
8/31/09
5:29:26 PM
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