PS Magazine - TB 43-PS-440
PS, The Preventative Maintenance Monthly
ISSUE 440
JULY 1989
I
l
HEY,
-nm; BIRl
hAS be±N
DOW² a
w³iL´µ
¶·
s¸oU¹
º.»£ ¼½
¾¿CKPÀÁÂ
reasing your
wheel lockpIn every 500 flight hoUrs
as requIred in Task 2 of TM 55-1520±
237±23±4 may not be enough to keep
it Fom lockIng up.
²f you' re operating in a wet or humid
envIronment, or If your bird has been
doWn ³r an extended period ³r what´
ever reason, you probably need more
lube on the lockpIn.
²f you fAil µo lube the pin often
enough, it maY not lock or unlock oN
command. Then, when the bird's towed
or taxied, the pin will sheaR In two.
¶oU can prevent Rust buildup on the
lockpin by coating it with aircraft
grease, ·²L¸G±81322. Move the pin
up and down wIth the manual lever to
make sure it moves Feely.
¹f tHe pIn ºon»t move Fee and easy,
pUt a drop or two of penetratIng oIl on
it. ¼S¼ 6850½00±508±0076 gets a 1±oz
can.
But keep oil and grease away Fom
the landing geaR weaR plate on the fOrk
assembly below the lockpIn. The wear
plate is Te¾on±¿ined and will deteriorÀ
ate fAst if itÁs soaked with lube.
¹f you acCidentally get oil or lube on
the wea plate, remove the lube with
a clean cloth and wash the p¿ate with
soap and water.
36
Juà 89
Ão taKe a c¿ose ¿ooK at tHe coo¿erÄs sP¿ined sHaft wea IndIcator eveÂy ÅMS
InsPectÆon.
¹Ç any PaÂt oÇ ÈHe faÉ Ê¿ade Is oUtsÆde the b¿ack wea maÂK, yoU must rep¿ace
tHe oI¿ coo¿e ÊefOre your bËd ¾Æes agaIn.
¹Ç tHe wea IÉdIcator ÌÍÂKs aÂe not ¿egiÊ¿e, or If theyÄre debonding, insta¿l
ÉeÎ Îear Indicator maÂKs. ¶ou can Use paÆnt or decals.
Chinook Anti-Ice System
I
f yoUr Ïб47Ï or D ÏhinooK Has a Ñ55±LÒ7Ó2 engIne wItH ÊYpass ÔÕD
scÂeens, tHe aÉtI±Ice system does not Have to work. THe sysÈem Is Êeing
reÌoved Fom ϱÌode¿s ÎHeÉ tHeyÄÂe coÖe×ed to D Ìode¿sØ ¹tÄ¿¿ Êe ÂeÙ
moved Fom D mode¿s Êy ÚÛÕ 55ÜÓ52ݱ240±50±22 In Ô¶ 9ÝÞ
jÄÅ ÆÇ
È7
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