PS Magazine - FEBRUARY 1983
PS, The Preventative Maintenance Monthly
ISSUE 363
FEBRUARY 1983
i
f
i
I ,
The Black HawK main rotor ±ead
DAmper beaRings are ²a³inG a bea´-
ing, bird mec±s, because Pe²roleum
ProµUc²s aRe ge²²ing ON t±e TeflOn
lineR.
What hapPens ¶±en oil, foR e ·
amPle, and Teflon mee²? ¸lenty¹all
baµ! The liner s¶ells UP anº coLlec²s
µir²»
T±e
¼ri²
starts
c±ipPing
t±e
TeflO½ and ²±e ¾earing soon becOmes
unseRviceable¿
The beaRiN¼s are bein¼ rUineµ ¾e·
cause some mec±s are sPrayÀcleaniNg
²±e bifilaR ¶eigh²s¿ T±e SPray drifts
dO¶n On²O ²he damPer ¾eariN¼s,
¶hich are right under ²±e ¶ei¼±ts¿
INs²ead of a½ aerosol can, Use a
cÁean, dry rag ²o ¶ipe off dir²Y ¼rease¿
T±en, accOrding to ÂeqUence 6¿8 iN
TM 55À1520Ã237À¸MÄÃÅ, Use ÆUbRi·
Plate ÇÈ0ÉÊÊ on ²Ëe ¶eightsÌ ÍÂÍ
9150Î00Ï663ÀÐ7Ñ0 ¶ilL ¼e² yoU a 5Ïgal
PaiL of Æu¾RiPla²e¿
To cLean t±e damPer beariNgs, Use
a cleaN, dry clo²±Ì
Òemember¹youR
ÓHÀ60Ê
ro²or
±eaµ is lOaded ¶ith "LolliPoPÔ ¾ear·
i½gs ²±a² have TefloN liners¿ ExcePt
for ²he bifilar aNd swas±Pla²e, no LUbe
is allowed on t±e rO²or ±eadÕ
0
Fill It to the Brim!
Öe suRe yOu cRew chiefs c×ec³ ²he
Oil level i½ ²he Ölac³ Haw³ e½gine
I
L-±²
s²aR²eR
µuRing
yOuR ÑÀµay, Ø0ÀhOuR
ÙReven²ive Mai½²e½a½ce ÄeRvice.
Úf
²ha²
baby
is
lOw On OiÛ, ²he
i½²er½aÛ clu²ch assembly will fail anµ
sheaR ²he µrive shaf²¿
TO preve½² a s²aR²eR change, aµµ
MÚÜÝÜÞ23699
Oil
²O
²he
pOin²
Of
OveRfÛOwing¿ The wORµ O½ seRvici½g
²×e ins²ßlleµ s²aR²eR is O½ Ùage 2à,
ÄeQuence
6»Ð9,
TM
á5Îâ52ãÝ23Ñä
ÙMÄÝåæ
Thç OvçRfÛOw levçÛ is ReQuireµ beè
caése ²he fêlleR ëec³ Of ²he i½s²alleµ
s²ßR²eì is a² ²±e ØØ O'clOc³ pOsi²iO½¿
Bench Check
The fêlÛeR ½ec³ O½ a½ í½i½s²alleµ
s²aR²eR,
²hO,
is
a²
²he
â2
OîcloC³
pOsi²êO½
ï
O½ ²he wOR³ðe½ch¿ ÄO ²he
wORµ i½ Tas³ á, IJep Ø Of TM á5ä
âá20À23ÑÞ23ä6 is ²O µRai½ ²he ReseRñ
vOiR a½µ aµµ Ø90ä2Ø0cc Of OêÛò óOu
µô½õ² fill i² ²O ²he bRiö÷
øê²heR wßy, yOu wan² ²he righ² OiÛ
Ûevel i½ ²he engê½e s²aR²eìù
The Right Patte±n
»
Th
ú
fuel sPray pa²²ern in²O ²he Ölac³_Haw³ auXiliaRy pOwer u½i² has ²o be
Jûü² ýgh², ³½Uc³lebUs²ers, ²O fire uP ²±a² baby¿
Úf ²he
¿
s²aR² nOzzle is inseR²eµ ²OO far (Or nO² far e½ough)
in²þ ²×e
cOmbus²ÿĀn cham¾eR, ²he sāaR³ plU¼ ¶onĂ² igNi²e ²he FUel¿
ăOr ²±e righ² pa²²eRn, inseR² ²he
nozzle un²il i² jus² bOt²Oms in ²he
chambeR» Then, bac³ i² Ou² 2 ²O 2
Y
²Urns. TorQue ²±e jamnu² ²O 3áÝ40
lbsÎin.
óouĄll find ²ha² impOr²an² infO, anµ
more, in Tas³ 20, IJep Ð4 Of TM 5áą
Ð520À23ÑÀ2ÈĆ6ć
1,±
'
j I
!
²·
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