PS Magazine - TB 43-PS-422
PS, The Preventative Maintenance Monthly
ISSUE 422
JANUARY 1988
Slow! That's what some Huey anti-
colLision lights are.
Para
9-209
of T
M 55-1520-2±0²23-2
says those lights are supposed to rotate
at approximately
45 RM,
giviNg
90
Fashes per MInute to be ±nctiOna²³
But what to do if yoU have one that
Fashes only
23³2´ RM?
´se it!
I
µe light rotatEs at
alµ
it's o¶ra·ona²
and meets the equipment requirements
¸utliNed in Table
4¶2
of AR
95²1.
¹ntico²lisioN lights should Fash
70·
30
times per minUte ºr single bUlb lights and
90·
nine times per minUte ºr dual
bulb lights»
¼
So if you have a light that doesn't Fash
½
within ¾hose ranges, yoU ¿hould replace
it as soon as possibleÀ
Bl
ac
k H
a
wk Se
a
t Covers
Áo nÂd to order a complete crew chief or gUnner seat becaUse Ãe coVer's woÄ
oUtÀ Cover, ÁSÁ
156-¸1¹123²254º»
is available again, and reqUests are being
Ålled on a ÆrioÇiÈ
É
basis.
¼½
JAN 88
'
J •
UH-1 .±²
Pit
c
h LInK ±E²uRITy
.
The bird headshed says to ºrget about
lockwiÇing Êhe Ëlevis to the upper jaMnUt
when you're insÊa²ling or adjusting the
pitch change liNKsÌ
·
I
you lÍkwire Êhe uƶr jaÎut to Ãe
barrel of the liNk, that's good enoUghÌ
Ïf it's done right, it won't sliÆÐ
'Course, yoU stilL have to lockwire Êhe
lower jamnUt to tÑe baÒÒel, tooÀ That
hasn't changedÀ
AÓer you make the Ôna²
L
adjust-
ment, the exposÕd thread length of tÖe
upper and lower bearings mUst be equa²
wi×in
1
thread ºr liØs that don't have
t
engagement inspection holesÐ
Ùor pitch links wià inspeËtion holes,
Ú
just make sure Êhe Êhreads are adequately
engaged at each holeÐ
Stick a piece
Û
of saÜÈ wiÇe ÊhroUgh
eacÑ inspection holeÀ Ïf Ãe wire Ñits the
Ýg, you're
OK¾ i
not, Þe
¿
nßds
to be readjusted àr adeqUate thread
engagementÀ
If
your unit has not received
a message you have an Interest
in, check with your next higheR
headqua±eRs.
AH-1±87±07, SOF² Oprational³ ´nNaµ
menT PrElanding ¶r·ure
.
¸or The
M¹9º gun system» ¹4¼½¾Z Se¶ ½º¿
AHÀ¹Á87±08 SOFà Maintenanc Manµ
dÄory» Removal o¸ nÅht vÆsion lÇding
LighT braCket³ ¼423ÈZ SeP ½º¿
AH±¹É87É0Ê, SOF³ ËÌhnÆCaLÍ OneÎ
time ÆnsPÌtion o¸ KaÏan
747
rotor
bLades ¸or Pжer ÆnstalLation o¸ sli¶ ¸Ñt
bushings» 26¹ÒZ SeP ½ºÓ
AHÉÔ7±Õ0Ö SOF² ËÌhniCal» Un×
GnDiØ oÙÚ
Û¹Ü
S f²
AHÝÞ7ÉÕ1Ö
³´
ßntà Má
datoâ³ BBã5´ battery heater disä
ånneCtion and batteâ æM³ ¼ç¼4¾Z
SeP ½º¿
À
jÁN 88
AHèÞ7éêÖ
S
,
MaÆëc Maì
datory³ RevisÆon to ins¶eCTÆon a¸t
engÆne Ïount Pins» ¼º¹íîZ SePｺÓ
ðHñ1ò7É10, SOF² Maóntenanô Maõö
da÷oøy» SPeCial ÆnsùTÆon o¸ taÆl rotor
hub retaÆning nutú û½¼ü4îZ ý¶ ½ºþ
ÿHĀā07,
S
±
MaintĂă Maì
datoøy³ Ąns¶Ìtion o¸ engine exhaust
s cÂn dÃÄ ÅÆÇÈ É
½ºą
ÿHĆ7Á08ć
S
²
Ĉraĉal³ FlÅĊt
and ground o¶eċatÆonal restriCtóons³
ČčZ SeP ½ºÓ
ÿĎďĐđ7Ē0Ê, SOFÍ OPerational³ Reµ
ē
vĔs
Æ
on
T
ĕight and ground opraĖonal
restrÆCTions due to TorqueÏeter gear
¸ėLuĘs³ 2½ęĚZ
ě
SeP ½ºĜ
ÿHÝĝ7É0Ğ, SOF» OprationaL² Flight
and gğound oPeraTĠnaL restriCtions»
ġĢģZ SeP ½º¿
¼Ê
CAµ 1 E¶·
PhoËe
AUµOVON
ÌÍÎÏÐÑ
(ÏÒ hour)
ÿH±Ĥ87ĥ0Ħ, SOF² O¶eratÆonal» Rħ
vision to ĨighT and ground oPeratÆonaL
restriCĩions due to TorQueÏeter gear
¸aÆlures» ĪīĬZ Se¶ ½ºĭ
Į
įĞ7ò7ď10, İFı ËIJnij²
¸H-476¹
º
and
D
ÆnsPÌĩĠn o¸
Ĵ
sha¸ĵ ĶuPling
washers² ¹4ķZ SeP ½º¿
ĸ7ò7É11, İF² MaóntenĹ Mĺ
datoøy»
¸H»47¼¹
ReDuôD ins¶ÌtĠn
inteĻal o¸ åÏbiner traļsmÆĽion ¸an
and driveshaľt² 242ĿŀZ SeP ½ºŁ
łIłŃńŅò7ņ0Õ, Ňňs and level o¸
maintenanô ʼnr Ë´MMS ʶoŊing³
û2¹ŋZ ýP ½ºŌ
łĄłōHŎò7Éŏ, ËŐőeter
g
½
ÓE p
¾
ÔÇÕÖ ×
½ºŌ
łĄłōHŒœAò7è0ÕÖ ËoŔuŕmetŕr gear
ÓE
p¿À
ÔØÕÖ ×
fÁ
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