PS Magazine - JULY 1982
PS, The Preventative Maintenance Monthly
ISSUE 356
JULY 1982
r
I
air is critical
turbine engine. The air cleaner system
provides that clean air when it's main-
tainEd right.
It±s a job for both the crew and
organizational mainteance.
YoU organizational mechanics need
to make sure the seal between the air
plenum box and the power pack is
completely closed any time the power
pack is installed.
Checking from the top of the hull
lets you see most of the seaL, bUt you've
got to check all of it. To do that, there's
a cut²out in the hull bottom just for
checking the rest of the seal.
Be sure that seal is fitted OK every
t³me
the
power pack
is
installed.
18
Otherwis´µ
tur¶ine wiLL
"eat·
enough grit to destroy it.
Also be sure the filter pacs are
cleaned with compressed airµ accord¸
ing to your
-20
TM.
Y¹u crewmen do the precleaner
checks on Page
2-49
of the
-±0²±
TM,
and no more.
Howeverµ if the pacs clog up in the
f³eld (there's an air cleaner clogged
f³lter l³ght on the dr³ver±s ³nstrUºent
paneL) and you can't return to organi»
zational maintenanceµ yo¼ can re½ove
¾
them and use the emergency pro¸
cedures
outL³ned
on
Pages
2³426
through
2-430
of the
²±0´2.
Never use water on the pacs and
never beat them against a ¿hard objecÀ
About the
For yoUr MÁ tank to have the best
ÂÃrst roUnd hit capab³liÄy ³t can ofÂerµ
tÅe crossWind sensor must be ³n worÆÇÈ
ing orderÉ
To Æeep it workingµ ½aÆe sUre the
sensor
³s
strapped
down
seÊurely
when not ³n use. IÂ it bounces aroUndµ
³tËll break.
Wind Sensor
Ìhen you erect the sensorµ maÆe sUre the latches are locked seÊurely. Ílso
checÆ that the cable is not crimped aroUnd the sensor base.
MaÆe sure you checÆ the sensor head for conta½³nation before firingµ or at
least once a week.
To make the checƵ erect the sensor, Âill a plastic squeeze Îottle Ïith clean
water and sqUeeze water into the sensor clean³ng hole
3
or
µ
times.
Ìater should flow out the drain hole. If it doesn'tµ get your ½aintenance
folks
Ð
on the job.
If the temperaÄure is below freezingµ mix alcohol with the water to keep it
from freezing. Never use antifreeze.
If you're GÑnna stow the sensor after cleaning the headµ wait until all the
water runs out first. Then strap the sensor down securely.
¶·
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