PS Magazine - TB 43-PS-433
PS, The Preventative Maintenance Monthly
ISSUE 433
DECEMBER 1988
OH-58 Kiowa .±±
Testing
... TestiNg .
.. TestiNg .
..
I C²ULDN'T TEST ThE
ACTUAT²R³ WE D²N´T hAVE
A TEST STANDµ
Dear Windy,
There's a 10±-hour inspection
on older ²pe Hydraulic se³o
actuators on our O´µ58's. It's
required to ensure the locking
spring mechanism on eAch
hYdrAulic se³o re¶uR port
operates right.
The NOTE on Page 7·8 of
t
55µ¸52±µ2¹8-23 says the check
cAn onlY be made using a
hydraulic test stand.
Wrong.
¶
a test stAnd is not Available
or convenient, you can peºorm
the test using the bird»s own
hydrauLic pump.
CW4 ¼avid Cur½ier
Ft ¾ucker¿ ÀÁ
Dear Mr. Currier,
You're rIght± indeed!
you can make the h²draulic
sequence valve check using exterNal
tesT stand pressure or Internal aircraf
pressure³
·
correctIon to the ´M Is iN the
worksµ
36
DEC
¸¸
aGE
DeAr WindY,
When crew seAt pAnels are
removed from the O´µ58 for
cabin maintenance, mechAnics
step on the seat frames And
damage themÂ
But we stopped the damage by
making a brace to Ãt over the
frames to protect them from
heAvĵfooted mechanics inside
the cabin.
Use 2 plies of ŵin thick
phenolÆc sheet, NSN 9330µ00Ç
880ÈÉ870, cut to the sAme length
as the seat frAme and approxiÊ
mately 2Ë inches wide. Drill
holes in the phenolic to match the
holes in the seat frAme. ÀttAch the
phenolic with the harÌware used
to mount the seat panels.
Íou can install the braces in
minutes and save Uncle big
bucKs in suppoÎ replacement
costs.
Moses Á. Daniels
Steven ÁÏ Ohler
´unter
¹F,
GÀ
UH-1 Rotor BlAdes INSpectioNs
G
ood news, Huey mechanics! You don't need to remove The main and Tail
rotor blades to perfrm the periodic
.
inspections required by Change 60 (May
88) to ±M 55-1520-210²23-1³ Reduce downtime wiThout reducing saFety or
reLiabi´ity by inspecting the main rotoµ b´ade like it says in Pa¶a 5·31¸a¹ (1) thrU
(6) on´y and the tail rotor blade per PAra 5-º17³a³ thrU d
»
on´y³ ±he word's in
¼H½1-MI¾-88¿05À
DEC
¸¸
37
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