PS Magazine - JUNE 1980
PS, The Preventative Maintenance Monthly
ISSUE 331
JUNE 1980
(
I
r
I
I
More and mORE T±²qu³ tAlk
±-²³
OK, let's try iT.
·
one more time±
² PS 322, page 53, and other pubs sAy
The only wAy you cAn torqUe, retorque
or Check torqUe is To bAck off the
fAstenEr And run 'er up with A torque
wrench±
So fAr, so good±
BUT³ As PAra 2-82Bg in ´h 26 to µM
5¶¸1500¸204-25/1
points
out,
in
AircrAft torquing there Are some ex¹
cepTions±
In some few cAses, to tighten an
ALreAdy
torqued fAsTener that mAY
hAve lost some of its originAl torque
through the seAting of componenTs
dUring operATion, you do not back off
the fAstener± If yoU back off And torque
AgAin³
you
set
Uº
A
new
torque
siTuATion ThAt wilL hAve to be verified
AgAin And Again ±±± And there'd never be
An end to it±
µhese speciAl situ»tions Are spelLed
oUt in your AircrAft¼s µM¼s, so f½L¾ow
the speDfic book For your bird¿
´Oµ¶ S·¸pL¶s, Pl¶·s¹!
Some beArings in the primAry ºlAneTAry geAr trAin of µ53-À-7Á1Â engines
Are not holding up¿ So µSÂR ´OM Msg ÃRSµSÄMÅÂ (2) 212215Z Æec 79 sAys
you now hAve toÇtAke the oil sAmpleÈ on your MohAwk every 6 fLight-hours (5¸7
flight-hoUr rAnge), insTeAd of 12É fLight hoursÊ µhe oiL AnAlysis LAb wiLl notify
yoUr oUtfiT if there is AbnormAl beAring weAr¿
42
Fº» YºU» ¼ºw½» W»½Nch
.±•
µhAt's becAuse the SMR code on
pAge 2Á47 in µM 55-152Á-21Á-23P
(Mar 77) hAs those pArts incorrectly
coded for deºot use±
µhe code is being chAnged, tho, to
ËÌlevel so you cAn use the Authorized
Power Wrench, NSN 512Á¸ÁÁ-169-2986±
´®U@f0°µu¶·¸D¹lf L@º»®¹@¼
Socket
OH-58-80-03
Maint
advisory
OH-58
door safety chain U±21/RU-21, JU-21,
and C Main d²iveshaft coupling wear
U-8F ai²c³aft DRST´-MEA 281700 Feb
lImits DR´µS-MEA 042015Z Feb 80
80
OH-6-80-01
Maint adviso²y Compass
AH-1±80-01
Maint
advis
AH-1´
On
deviation
with
Humphreys
attitud¶
faIlure of ²adio magNetic indicato² P/·
indicator DR´TS-M¸A 181800Z Feb 80
1¹-2105/A,
·Sº
58»6-01-039-4148,
U-8-80-01
Maint info Remove caBin
gunner/co-pilot compartm¶nt DRST´¼
door
safety
chain
DRSµS-M¸A
MEA 201500Z ½eB 80
»81700Z Feb 80
AH-1±80-02
Maint advis AH-1S On univ
CH-47-80²01
Maint advis ¾nc²eas¶ in
tu²²et ¿ire volts cable P/· 11830585,
¶ngine
oil
change
DRSµS-MEÀ
·S·
1090-01-056-290Á vibrat
loos¶,
2619Á0Z FeB 80
to²n loose Âu²ing gun r¶moval DR´T´¼
OV-1-80-02
Maint info ALL OV-1/RV-1
MEA 251405Z Feb 80
series ai²c²afÃ, seat retention ha²ness
AH-1-80-03
Maint
advis
AH-1S
On
one-year life extensIon DRSµS-MEA
quick release pins P/· 11830423, ·S·
071800z Feb 80
53Á0-00-478-02Á8,
dis¶ngage due to
U-21-80-01
Mainà advIs Remove cabin
vib²ation DRSµS-ÄEA 251400Z Feb 80
43
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