PS Magazine - TB 43-PS-676

PS, The Preventative Maintenance Monthly

ISSUE 676

MARCH 2009
PS Magazine - TB 43-PS-676 - Page 24 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!
45
PS 676
MAR 09
Replace the current
muffler bracket mounting
cap screws—M6, 8.8—with
cap screws—M6, 10.9—
Don’t reuse the lock washers.
Get new ones with NSN 5310-
01-476-9079.
Replace this black screw…
…with this
yellow screw
Add two new flat washers,
to each cap screw. These
washers are black and thicker
than the old yellow washers
3-kW TQG…
ReplaCe
the Muffler
Hardware
in the past,
our advice
was to check
the mounting
hardware
often and
tighten as
necessary.
This vibration
loosens the
mounting hard-
ware and leads
to cracks in the
exhaust pipe.
A crack in
the pipe or
muffler
can lead
to exhaust
system
failure,
which means
more smoke
and noise.
it can also lead
to generator set
damage or failure!
Our advice
did not
solve the
problem.
So, we have
new
advice. Use stronger
muffler-mounting
hardware!
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
676.44-45.indd
1-2
1/27/09
4:09:30 PM
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