PS Magazine - FEBRUARY 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 231
FEBRUARY 1972
6
Did you ever see an HD16M tractor
blow
its hydraUlic
system's cool?
The
lifE and tiLE cylinders on that dozer ±ake
many
a
hard
knock
during
a
rugged
workday,
and if there's nothing to ab-
sorb the shock pressures within the hy²
draUlic system the fiLter is the first to
get walloped. The gasket or connections
let go and i³ sCarEs Co bLow like a gUsher.
The shock absorber for the hydraulic
system is the nitrogen accu´Ulator. Its
main job is to bUffer the shock pressures
thaµ can damage the hydraulic system
parEs¶especially ±he fi·±er¸
BUE to do its job ±he accUmulator mUsE
have a charge of
75
PSI¸ SO anytime
yoU notice your
¹
hydraulic system fil±er
spoUting a leak, don'± blame ±he fiLterº
the accUmulator is ±he bummer»
GeE yoUr support
Co
check
the
accu¼
mUlator pressUre wi±h
a tire gage¸
If
i C' s
below
75
PSI, have
'em recharge
i±
or
you
can
replace
it
with a
factory pre½
charged accUmULa¾
tor¿
The
accumUla±or
prÀssure should be
checked abou± every
6 mon±hs or else you
´ay spoUt an oil
gUsher that doesn't
·
pay off.
Wrung J1±²ber
PH
)151
Z)
That's a printer's goof oN the new
-20
manual
for
ML51-series
\±ton
²rucks. It³s a TM 9 all right, but cross
out
²he
"3430±318´30µ
and
write
"2320¶2·8-20µ
instead.
There's
no
change planned for the fam¸ly number
of the old Fa¸thfu¹s.
Slades fur ³/UbuUs
ºf a lens is cracked or broKeN iN the
aviator sung¹asses author¸zed by CTA
50-901, toss 'em away. V¸sion damagE
could resu¹t from a repa¸r m¸smatch.
You can get a new pair with »S¼ 8465±
75
3-626
·½
Watcl tle J1t
¾very once in a wh¸¹e, t¸ghten thE
microphone boo¿ nut on your
eve
helmet.
Àf that
mouNting
nut worKs
loose aNd loses ¸tse¹f,
¸t'l¹
def¸n¸tely
lower the boo¿Á
One Per PLane, P´ase
Àf you need the ·4-r¸ng bindEr for
your bird's ·0 check ¹ist, wh¸p out a
DA »orm ·7, ask for TM 1500-1 and
sEnd ¸t to the St. Ãou¸s pubs cENter.
But rememberÄon¹y one b¸ndEr for
each Army aircraft ¸n your uN¸t.
Aboµt Vu1r vµ¶an
...
»orget some of the ¸l¹ustrations oN
page 24, PS 227, on the Vu¹can "eleÅ
vat¸on/ aZimuthµ
d¸als.
There
is
no
"elevat¸onµ window, and the ¸¹¹ustraÆ
tioN used was for a different AD sysÅ
²emÇ Remember, too, tHat the screws
ment¸oned oN the D±box are not Èhose
on the access door.
SB-22 NamepLate
That "data plateµ »S¼ on pagE 43
of PS 228 w¸ll gEt you a designation
str¸p for the T A´2É2 liNe pack. Sorry
about that. Êf you need the data or
Nameplate p¸ctured ¸n thE article, your
support has to go through your m¸sÅ
sion depot to gEt it fabricatedË
)
715
Bout
¼ow you can gEt the acce¹erator
cable
boot
for
your
TM±244-ser¸es
L \-ton truck (M7·5 etc.). OrdEr ÌS¼
2530±443-80·7.
Zle (1idinG jiglt
Your
SDU´5
distress
marker
light
needs regular check¸ng. Put ¸n New
batteriEs if the f¹ash ¸s weak or z¸lch,
or if thE batter¸es havE aN odor. Ya
can't mistakE the s¿e¹¹, just ¹ike vo¿it.
Get New batteries with »S¼ 6135-073-
8939.
Would
You Stake
yOur LifE
±n
the CONdiTIoN of ²ouR ³q´pment?
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