PS Magazine - TB 43-PS-629

PS, The Preventative Maintenance Monthly

ISSUE 629

APRIL 2005
PS Magazine - TB 43-PS-629 - Page 19 of 33
PS 629
APR 05
35
HH-60L/UH60A/L…
Dear Sergeant Blade,
When mechanics remove
the tail rotor pitch beam
following Para 5-4-41 of
TM 1-1520-237-23-3, they have
a tough time not damaging the dust
plug and the threads on the shaft,
even when they use tape to protect
the threads.
The nut used with the pitch beam
puller is too small to screw into the
pitch beam shaft.
So the nut and the 16-lb puller
have to be held in place while removing
the pitch beam. Usually the nut falls
out when tightening the puller. It could
damage the stabilator, the dust plug
or the threads when it pops out.
We’ve come up with a
solution to prevent damage
to the tail rotor pitch
beam’s dust plug and
threads.
Using the existing puller,
and a discarded nut,
we made a round plate that
attaches to the back of the
nut with screws. Drill a
1/2-in hole in the center
of the plate. Have your
AVIM shop make the
nut plate using the
drawings.
PS 629
APR 05
34
man, removing
the tail rotor
pitch beam is
such a
pain!
At least
get me an
umbrella!
uh… me
have some
repair
work to do.
be right
back.
looks
like a lack
of pm got
the drop
on you.
yes. jimmy
learn no
pm mean
you get
caught with
pants down!
connie!
thank
goodness!
we were
really
worried.
hey,
who’s
your
friend?
this is
jimmy of the
jungle. he
saved me
from a
man-
eating lion…
…a deadly
python,
and
helped me
find my way
back.
and connie help
jimmy with pm. me
and chimp have much
work to do back at
tree house.
I think
jimmy
learned
his lesson
well. now
if only
he’d watch
out for
those…
…trees!
a
few
minutes
later…
You’re telling
me! you guys
always
drop
the nut and
I
end up getting
damaged!
629.34-35(C)
2/25/05
1:42 PM
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