PS Magazine - FEBRUARY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 243
FEBRUARY 1973
IT'S A STANDOFF
If your Delta or Hotel modeL Hueys
have the crashworRhy fuel system per
MWO
55-1520±21²±5³/1,
±ook at the
main fueL' Lines. Could be ±ines FSN
4720´
176-µ612
are about to chafe and wear a
²oLe i³ the transmission sump.
Head off downtime by using cLamps or
rerouti³g the Lines for V-i³ minimum
c±eara³ce´
A flashLight a³d mirror wi±L make your
inspection easier.
tHE SPLIT CONe BIT
Some Huey a³d Cobra pitch pu±lers
anµ knucklebusters get uPtight when the
sp±it cones supporting t¶e main anµ taiL
rotors slip´
Sure, the pubs caL± for equaL sP·cing
of the co¸e ¶a±ves µuring i¸staL±ation¹
But the pubs donºt ca±± for mai¸taining
that spacing during insPections¹
So, µo³»t sweat it if the cone gaPs are
not equal or one ha±f of a co¸e touches
t¶e other ¼a±f´
IN THE HO± sEaT?
Heat at t¶e T-?3 engine tailPipe is
e¸ough to we·ke¸ re½useµ ¾-¿a¸d couPÀ
±i³g clamp nuts, Áuey mechs¹
Âhe result ca¸ be clamP fai±ure a³d
damage to your ¿ird´
Ãhic¶ is why Para
5-¶6e(2)
of TM
55-
152³-21³-2³
(Sep
71)
ca±±s for using new,
steeL selfÄlocKinG ³uts when you seat the
clamps¹
You better beLieve it!
·¸
LTcR,
When you Cobra mechs open up the
engine compartmÅent and Leave t¶e upper
reaÆ Latch open, iÇ hits the hinge on the
inside of the cowLing´
Âhe cowling is then forced into the
maÇing airframe sKin´ Èeep that up, and
your bird wi±L soon have Ço be gÉou³ded
for sheet metaL repaiÊ.
There is a better way´
Just close the latc¶ ¿efore you swi³g
wide the cowLi³Ë, and youÌLL have cLearÍ
ance Î.
. no skin daÏage.
OÐen Çhe LatchÑ natch, before you butÒ
Ó
ton uÐ your bird.
³aÇed oi± cooLer from your bird, a³d Çhe
parEs pub shows itºs recoverabLe; Çag it
with a DD ForÏ
15¹¹±2.
When you fiLL out the unserviceab±e
Ôrepairab±e) tagÑ show in the Õ"Æeaso³
for repairable conditionÖ block Çhat the
cooLer is beinË re×Urned for deco³tami³aØ
tionÙ Âhe coo±er aLso geEs an aluÏinuÏ
Çag staÏpedÚMÛÂ AÜ COÝÂ. Âhat word
is in para
3-275º
Ch
8
ÔApr
¹2)
to ÂM
55-
15»0±20¼±25/
l
o³ ge³eaL practices.
The overhau± tyPes wiLLÞthe³ disassemÍ
ble the cooLer and reÏove the metaL chips´
½ ¾¿ AND GIVE
YOU THIS
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