PS Magazine - FEBRUARY 1982
PS, The Preventative Maintenance Monthly
ISSUE 351
FEBRUARY 1982
- .
'
i
I•
,
±
I .
²
Fire-resistant hydraulic fLuid, MI±²
"
H-83282, replaced MI±³H-5606 in
r-
J
mosC hydraulic systems.
±
Never add M´±-H-83282 Co any of
Che 4 rotor head dampers Chat use
MI±-H-5606, Choµ
HUey or BLack Hawk cargo doors
Cake
a
beati¶gµ
TSAR·OM
Msg
DRS¸S³M 222119Z Apr 81
(¹H³
60A³81-º0)
summarized
severaL
mai¶te¶a¶ce acCio»s ¼o be ½ake¶ o¶
¼he ¹H-60A doors. I¶cLuded was a
doubli¶g of Che Upper door stop and
maki¶g sU¾e you¾ ai¾craft has a lower
Sure, Che 2 fLuids wiLl m¿x a¶d you door sCop i¶staLLed.
wo¶'t even ruin Che seaLsÀ BUE Che
viscosity of
each flUid is differentµ
With Che damper pisCo¶s movi¶g back
and
forCh,
Che fluid heats up a¶d
changes ¼he raCe of fLowµ
To head off a "danci¶gÁ ¾oCor head
±
7
.,
²
³£´
J
:
{
µ ¶·
;
¸b¹º
»i
caUsed by a Â-Co³4 beats per revolutio¶
=;±:
¼
½¾¿ÀÁÂ
ÃÄÅ
ÆÇ
vibratio¶, service the dampers with
MI±-H-5606
hydrauLic
flUid
onlyÃ
That's Che word i¶ Task 1, SEep 10 oÄ
TM 55-º520-237-23-4Ã Be sure yoÅ
aLso use MI±ÆH-5606 i¶ the Landing
gear.
A¶d, if you're about Co cha¶ge a
±²³´³²µµ²²¶;·¸
¹
damper o¶ your chopper, keep Chis in
Door mai¶tena¶ce Çs covered
m
mi¶d:
Task 7, TM 55-152È-237-23-5.
The dampers are shipped ɾom the
When you remove a cargo door fo¾
manufactUrer
with
a
preservative
mai¶te¶a¶ce, be careful whe¶ you put
fLuid. You have Co drai¶ Che fLuid a¶d it back. As you sLide ½he door o¶to the
add MI±³HÊ5606 beÉËre you i¶s½alL the
tracks make sure it's LeveL with the
damper.
tracks
'
IÉ you aLLow the rear e¶d of the
40
- ³´µ¶·
-
±
²=
.,²³ ·-
NOT REALlY³´µ
c¶:
JUSt a Bi· MO¸e
\º
oF ¹Hº CmPu»X
»¼½¾¿Ào:ÁÂn"
V¼½¾¿Ày/
)
A¶y time you BLack Hawk types
<_,
i¶stall a wi¶dshieLd, focus on Task 7
È
iÌ
TM 55-1520-237³23-º0.
If
the
!
windshieLd is ¶ot seated eve¶Ly, it'Ll
Ã
1 Á
'
-.
±²³´µ¶·¸L_
¹
º
crack a¶d you'lL have to do Che job
i
over agai¶µ
Save the
dust shIeld ÄÄÄ
INstall dOOrs level!
If you geE a Ío¼ oÉ door vibra½ioÌ i¶
flight, check Che roLLers for too much
pLay.
There are 4 wear strips on Îth the
uppe¾ and the Lowe¾ door ½racks where
the ¾oLLers seat. The s½¾ip, Item 38Ï Fig
49 i¶ TM 55-1520³Ð37Ñ23P, wiLL wear
oUt i¶ timeà TheÌ, fÒr a snug Éi½, you'LL
¶eed ½o Óo¶d o¶ ¶ew wea¾ s½ripsµ
Yessir-e³e, Ói¾d mechs, you¾ ÔsugarÕ
is refi¶ed
... takes a bi½ mÖ¾e PM ½ha¶
Che othe¾ ki¶d!
±ike×i¶sert ¼he screws a¶d wash²
ersµ Add Che nuts and ha¶d-tighte¶
Chem i¶ the sequence shown i¶ Fig
7-3 oÉ the pubØ
Torque tÙÚ nuts, agaiÌ iÌ the same
order, to 15-18 LÓs³i¶Û¶o more!
'·ourse, whe¶ you'¾e worki¶g o¶
wi¶dshieLds, aLL eLect¾icaL powe¾ haÜ
to
b
tur¶ed oÉÉÝ The Óa¼Ce¾y shouLd
b
disco¶¶ected.
For good measu¾e, tho, puÍL the
cirÞuit
Óreaker
fÖ¾
the
heating
eÍeme̽ o¶ a¶ ÖutÓoa¾d wiÌdshieÍd.
The¶, if someÓody accide¶½aLLy ÉLips
the heater swi½ch ½o ßN a¶d the
ba¼¼ery is co¶¶ected, ½hat Óaby wo¶'t
b
damagedà
The
wi¶dshieLd
wiÍL
ac½uaLLy meLt if ¼he automa½ic 75³115
degrees
F ¾heostat
m
the sysáem
maLfu¶ctio¶s.
4Â
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