PS Magazine - TB 43-PS-438
PS, The Preventative Maintenance Monthly
ISSUE 438
MAY 1989
-
engines,
transmissIons,
main rotor masts,
rotor blades and
other major components are aRriving
at overhaul facilitIes rUsted and cor-
roded±candIdates Fr tHe scrap heap.
²³´µ main rotor masts, Fr example¶
are really taking a beatIng dUring stor·
age and shIpment¸
¹º yoU have a reUsable metal shIpping
container Fr the mast, Use It» ¹º yoU
have to Make a wooden contaIner,
chapter
3
oº T¼
38-230-2
shows how»
BeFre yoU pack tHe Mast, remember
that shipping and storage time means
that any Unprotected bare metal will
rUst and corrode» ½He mast can be re·
¾InIshed only once to remove damage»
Aºter tHat, It has to be scrapped»
274-5421.
²se dry, ºiltered, low¿pres-
sUre air to remove the solvent Àom
holes and crevices»
Then coat the entire mast and bear·
ings wIth corrosion preventive com·
poUnd,
NSN 8030-00-837±6557.
²³
MAY ³9
Wrap the mast with greaseprooº ºlex·
ible barrier material,
NSN 8´35-00±
224µ8885,
and tape it shUt with presÁ
sUreÂsensitive
tape,
NSN
75´0-0´µ
¶46µ7767.
½he wrap prevents the preÁ
servative Àom rUbbing oÃ.
¹nclUde the DA Äorm
¶577-2
repaIr·
able tag and the DA Äorm
24´0
comÂ
Include tag iN the shippiNg coNtainer
ponent record
in the shippIng conÅ
tainerÆ ²se a greaseprooº enveLope to
protect the paperworkÇ
MAY ³9
²se cellUlose cUshioning material,
NSN 8135-00-183-8814,
to hold the
mast Èrmly In place inside the con·
tainer
and to
protect It Àom hard
knocks dUring shipping»
Aºter
yoU
close
the
container,
eyeball the markings on the oUtside to
Outside markings accurate?
1"'±
± ²f:,.
I
CLF!" ³´µA¶·
•fF
7¸¹
.±
l·
t
'
"•r¸¹ºs»¼?½
SºV»¼½¾H G¿
i
Do NOr IJH²i>
make sUre they agree with what yoU're
shipping» ¹º the markings are diÃerent,
change 'em» ½hen stenciL the DA Äorm
24´0
control nUmber on the contaIner»
ÀTÁER ÂÃMPÃÄEÄTÅ
Éhen yoU pack an aIrcraºt engÊne Ên
a metal shipping container, Use proË
tective covers at the engine inlet and
oUtlet»
Engine containers are moistUre conÅ
trolled, so keep them that way by ad·
dIng the right amoUnt oº desiccant aS
²9
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