PS Magazine - TB 43-PS-687
PS, The Preventative Maintenance Monthly
ISSUE 687
FEBRUARY 2010
41
PS 687
FEB 10
M
echanics, aircraft maintenance manuals contain valuable information to
help maintain your birds. But it’s a mistake to forget to check your
general
air-
craft TMs.
Not everything you need to know to take care of your Chinooks, Kiowa
Warriors, Black Hawks and AH-64s is included in the maintenance manuals.
There’s more information in the general aircraft TMs that can help you.
Some new mechanics may not know–or they forget–that general aircraft TMs
contain information about parts, components, cannon plugs, and wiring.
So before you say something can’t be Fxed, check the general aircraft TMs.
They also contain information that covers hardware and consumables, shop
practices, tools, ground support equipment and much more.
All
Aircraft…
Don’t Forget Your
General Aircraft TMs
do
first
things
first.
after shutdown, allow
the oil and grease to cool
down and settle to the
bottom of the gearboxes.
make sure the bird is
on level ground before
servicing the gearboxes.
to avoid overfilling the
intermediate and tail
rotor gear boxes, check
the level with the service
tool, pn 280
7
, described
in em 0126, tm 1-1520-
longbow/apache, Ietm.
check fig 20 in
wp 1856 00 of
tm 1-1520-238-13&p
for the a-model.
for the no. 1 and no. 2
nose gearbox, eyeball
the sight indicator and
add the right amount, like
the Ietm or tm says.
if you get in
a hurry to
service the
gearboxes,
overfilling
inevitably
happens.
overfilling
the gearboxes
can blow out
seals.
if you add too much oil in the no. 1 or
no. 2 nose gearbox, the excess blows
through the breathers and leaves an
oily mess to clean up in the engine area.
the same
goes for the
intermediate
and tail rotor
gearboxes.
too much grease
will blow through
the breather top and
fill port, leaving a
mess to clean up.
don’t rush
servicing,
and you’ll
avoid
overfilling.
Do not overFll nose gearboxes
Excess grease
will overFll
breather
top and
Fll port of
intermediate
gearbox
Use service
tool to check
intermediate
gearbox
grease level
Use
service
tool to
check
tail rotor
gearbox
grease
level
you
know
the
deal.
I’ll get the
paperwork
started!
hold it!
always
check your general
aircraft tms before
you say it can’t be
fixed!
if it can’t be
fixed, we’ll order
a replacement
part.
yeah,
don’t
forgeT
us!
687.40-41.indd
1-2
12/28/09
10:08:24 AM
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