PS Magazine - JANUARY 1976
PS, The Preventative Maintenance Monthly
ISSUE 278
JANUARY 1976
M109/M±²9A³ HOWITZ'ER tiP
Here's
a
good tip to improve engine
performance.
Check the 2 clamps on the ends of
your turbocharger flexible hose and
make sure they±re screwDriver tight.
(This is the air dUct that rUns from the
engine tUrbocharger air intake hoUs-
ing to the air cleaner dUct and flange
assembly.)
These clamps can work loose and let
Dust and crUD get sUcked into the
turbocharger
and
blown
into
the
engine cylinder block.
WRONG!
I
AiN'T WSt MY
GR±P
.±²
²HE
Clamp5 ³n her´
µ¶V· ws¸
¹º»¼½¾ .¿À
-
This²kinD of stuff in a diesel engine
will cUt down on its pep anD shorten
its life.
So c³eck the 2 clamps for tightness
and fit. (Make this a regUlar part of
your quarteRly´Qµservice.)
If the clamps are too beat Up to holD,
get new ones. They' re listed on page 4¶
7 (Fig 10 item 2) of C3 to your TM 9·
2350¶217¶24P/¸ (Oct 72) as CoUpling,
grooved, air cleaner dUct, NSN 5340·
00¹857º5420.
HoLES? orDEr nEw onE
,·:±²
³
´µ¶1
¸¹º
·
a
±
"
'
±
·
.
kÁÂ
³ '
´
µ
¶
;
'; j-
_ ²,³
·
´
µ¶
- : ¸
)¸
¹º»
c
±"²
¹
c³
´
But
»uppose
the
air
dUct
hose
assembly that the clamps h¼ld has
holes in it? No proble½. A new one,
also listed on ¾age 4¶7, is NSN 4720¿
00¶857¶9565.
22
?-Mf9A1
=¼
how´µzEr
¶JNDY-_
dan·y
There±s a hanÀy dÁndy  sh
D
plug on most M¸09AL's (and some
¸
late M¸09±s)Ã The only thing isÄ many
[
Å
crewÆ doDZt use it Èecause they dÉDZt Ê
kÇoW What it's forË
Page 3Ì4¸ of your new TM 9Í2350¶
µ
217ºLÎN (Sep 74) gives yoU the tip ofÏ
ÃÄ;ÅÆ,Ç
_sº
The plug, locateD at the front enD of
the upper recÉil cylinder, can Ðe used
to bleed the recoil cylinDers when yÉU
replenish yoUr accumulator.
»¼½¾ ¿ÀÁÂÃÄ ÅÆÇÈÉ
It's a lot
Ñ
simpler with the plug. Just
work it like the Note on page 3º4¸ of
yoUr ÒLÎN TM tells you.
So, if you±ve got the plug, use it as
needed .
ÊËÌ Í ÎÏÐÑ
½½
r
¾
ÒÓÔ ÕÖ×ØÙÚ ÛÜÝ
±Course, if you haven't, you're still
not in such bad shape. You have to
loosen the hydraulic tube nut ÓNo. 9
on page 3¹41).
Lo¶Sen
hYD·AULIC
TUBe ¸UT
To BLEED
·eCoiL
CYl¹ºD»·
Ôaturally, tÉ get at thE nÕt,yÉU±ll
have to take off the cover, bÕt that±s
not much Éf a job.
È3
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