PS Magazine - MAY 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 234
MAY 1972
OH-SBA T /R DRIVE
SHAFT CaRE
A rusty tail rotor drIve shaft leads to
pittIng anD corrosIOn-2 meTal Manglers
That weaken the shaft. An extra sharp
flex, rap or strain wilL kInk the shaft
P±Q²
Your new bIrd's exposeD shaft is pro³
tected wiTh 2 coats of clear Lacquer. YoU
have to give it the same´same doubleµ
coat protection when ¶ou install a new
one. Here·s how.
First the shaft gets a rubd¸wn with
naphtha or ¹.E.K. (ºabLe 1»1, º¹ 55´
1520»228»20)¼ Hold it! Air dR¶ing leaves
uneven patches of this priMer½ so w¾I¿pÀe
It Ár¶.
the hanger supportsÂ
BUtton
down
The
bearings and colLars
and cover Ãem wITh
masking tape. ProÄ
tect Che taiL boom
with a Åoth or paper.
Put 2 coaTs of clear lacquer ¸n the
shaft² First coat dries Co touch, buC
second coat geÆs a 48Çhour dr¶ing spell²
FSN 8010»515È2487 geTs ¶ou a 16´oz
spra¶ can.
FinaLL¶, Éake sure the rubber collar
To Che shaft mating area is clean and dR¶
anD seaL the rubber colLar to the shaft
wIth a LIght coat oÊ ËºV»732 adhesive
compoUnd, FSN 8040Ì902´3871 (3Íoz
TÎbe). ºhis keeps dirÆ ÏnÐ dust from getÑ
tIng unDer the collar and grinDing awa¶
The shaft²
Safet¶ sense Idea for the ±aIl¶: Add a
P¹ check for rUst-ÃspeciaLl¶ ÒroUnD the
bearing coLLars-to ¶our unit SÓPÔ
OUCH±
GIECK
THeM B±ARiNg
cOLarS
-;oUCH
ÓH»58 training ÕLows ¶oUr ÉinÁ concenÖ
Cr×TIngon conTrols, InstØumenTs anD ÙP Instrucµ
TIons¼
ÚÛIs cockpit concern couLD cause ¶ou to
overÜook a harD toÝchDownÞor a touchDown
ßà an UnUsuaL aTtátÎDe .â. tÛat coULd wãinäle
¶oUr ÕIrDås skIn
²nd you³s!
æoçè»è»è, holD one, BolD Óneâ éheck for
säin wrinkLing anD compression bUcäêIng on
¶oUr bIrDës beLL¶ froÉ jusT ÕeLow The avionics coÉpartment aft to the horIZonìaL sTabiLIZer,
anD for skIn wrinkLes on each side of The engIne Deck.
An¶ puckereD condItion caLLs for a TiÉe oÝt anD a hard LandIng inspecTIon, ºIgerí în which
case get ¶oUr cLaws Into pg 3»4 of º¹ 55»1520»228»20 (Óct 70), and bring ¶our biRd up to
BY
The M
OdEL, PLEAsEl
When ¶ou reïUesT a part for ¶oÝr aIrcrafT, bIrDmen, choose the part ThaT appêIes jUst To
¶oUr ÉoDeLâ
îf ¶oU asä for a parT Chat appLies To severaL moDeLs some of ¶oUr ÕUDDIes are goIng to wInD
Up
on The shorT enD of Tðñ sÝppL¶ sCIck.
sE:±²³´rµ¶·¸¹ºR»¼!½¾¿'ÀÁÂÃÄÅ •
æa¶, for exaÉpLe, ¶oU Ûave an A moDeL
su
Ftc.2±± fOi "²'
SERVOvLINoEr1HYo±AUl²t
•±
²
"
³´
A
òóÛInook anD she neeDs a h¶DraÝLIc servoÌ
aPL-±v
1•s³´1µ-2¶·¸
ô¶êInDer.
SE:²³,´µ¶;·¸¹.=º»R¼½¾Ic
..
.ÆÇÈ
a
õse Töe stock nUÉÕer for the A ÉoDeLâ îf
¿ÀÁ-Âre'ÃÄÅÆÇÈÉÊËÌÍ
¶oU orDer the parT tÛaT fI÷s eITher The A or
b
ser³´ yLI nµ¶R,hy·R¸UL
tC²
µ·¶¸
ÉÊ
¸¹
øoDeL, UnITs wiTÛ
b
ÉoDeLs wILê be shorT sInce
ùÛe¶ canúT use parts coDeD sTrIcTL¶ A moDeL
ûââ úTIs TÛe case rIghT now.
RPL¹º» l6So¼½¾¿Z9Àb
ºeE
ÁIGÂ2Ãz
FOi N
»e¼½CTLInµE±¾¿yÀiuUÁÂt
¹º±±±»
a¹
RPû-
Ä650Å8ÆÇÈ797É
ÄÅBÁ
Eff ÆÊÈË4Ì´ÍÆËÎÏÐÑ3Ò
ÓÔÕ1Ö1Ö2
fÆrÇ
×ÏØÙ8ÔÐÚ
< flG.222 fo n
I
´µ¶ ·µ
th¸¹¸
Pºµ»¹
¼½¾
.¼½ ¾´»
»h¸¿¸
üo ýaTTer what ÕIrD ¶oU crew, orDer Õ¶
ÉoDeLâ þf sÝppL¶ Is fresh oÝT TÛen TÛe¶ÐêL sUÕÌ
sTITUTe anoTher part CÛat Is UsaÕêe on oTher ÉoDeLs.
ÿeep The sUppL¶ pIpeLIne fIêLeD-wITÛ The rIghT repaIr parTs.
55
³´ : ;µ¶·¸¹
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