PS Magazine - AUGUST 1978
PS, The Preventative Maintenance Monthly
ISSUE 309
AUGUST 1978
Any time you Huey
Cobra mechs spot metal c±ips on
the T-5 3 engine chip detector, or
1
r
±:²³´µ
¶·
¸
.±²
-
±
in the oil flter, yoU ±ave some
additional inspections to make.
?
'CoUrse, Para 12²29 oF TM 55³2840-22´-24 has the
word on eyeballiNg the other strainers and flters µr
metal coNRamiNation.
Hold one, tho, beµre pulling the overs peed goverNor
and tachometer drive flter. Latch on to a 10-32
0
RemovE access plug
-
use 10³32 bolt
on filTer
bolt becaUse yoU¶ll Need it to remove the frmly·
seated flter¸
A¹er you break the saFety and remove the flter
access plug, screw the bolt iNto the flter threads.
ºhen yoU can pull the flter, easy as you please!
I» yoU Use a scriber to "Fetch¼ the flter you¶ll
break the ½lter in halF¾ Then yoUr work is really cUt
oU¿ µr yoUÀ
Áhe a»t hoUsing has to come
o so you can pUsh oUt the other
halF o» the strainer .ø uGhÄÅ
TIME
´O
REtORQUE?
Back Of, busteR!
Physics may play second fddle to the
opposite sex at your bull sessions, but at
least oNe subject seems to caUse quite a
Few argUmeNts: How Æo cÇeck torqueÃ
µK,
onÈe more¸
When itÉs time to check torque on a
nUt, never JUst slap the wrench on it
and take a readin
g
Ê YoU need about 10
perceNt more torque thaN was orginally
appËied Just to start the nUt ÌOving
againÍ AnDÎ the nÏÐ has to be moving
to get the right toQue¸
Back o oN the nUt a halF to a Ñll
tUÒ with a regular wrench, and
tighten it with the torqUe wrench to
the correct value. ThatÉs the word in
para 6²152h oF TM 55³1500-204-25/1
(Apr 70)À
WheN you mechs spot eNgine oil
aroUnd the HUey or Cobra engine bleed
band holes, or at tÓe inlet guide vanes,
there may be an engine change in your
Ñture.
A leak at the ÔoÀ
¶
bearing means
the seal caN¶t be changed in the feld and
the engine has to go to overhaul. YoU
caN change the seal on the ÔoÀ 2, 3 aNd
4 bearings iF one o» Õhem is shot¸
BUt iF you have the new T53²Ö²13B
(serial Number suÂix B) engine, yoU¶ve
go× it made in
Ø
the shade¸ Ùhat baby has
a new, toUgher Ôo. 1 bearing seal that
wonÉt leakÀ You wonÚt have to change
the engine.
4·
l
I
I
1
i
¹l
.,
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