PS Magazine - SEPTEMBER 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 238
SEPTEMBER 1972
.-±²³´
If
you
Huey
(UH-1)
mechs
haven't
already put a guard on the fuel shutoff
switch, as spelled out in TB 750±992-2,
²Jan 72), hop to it.
Pilots have mistakenly
fuel
switch
instead
of
switch
to
simulate
a
landing.
turned off the
the
hydraulic
hydraulic³off
Passengers
boarding
the
Huey
have
accidentally
hit
the
pedestal-mounted
fuel switch with their equipment.
g´ne stoppage.
To protect the fuel switch and make
identification eaSier, ask your supply for
sWitch GµARd, F¶N ·930¸615±921·, ListeD
in FeD Cat C±5930±I¹º» (jµ¼ 72) On
paGe 89½
To
maKe
the
guard
fit
the
panel,
grind off
Y
inch from each end of the
guard and de-burr the edges.
¶taMp one end
OFF
and the other end
ON.
¶and the panel where you're go´n¾ to
mount
the
guard
with
400±grit
sand¿
paper. Àough up the back of the gÁard
so you'll get goo
Â
d bond.
Bond
the Ãard
to
the panel using
ÄetaL ¶et Å-4,
or eqµivalent adhesive,
placing the
ON
end at the top of the
panel.
That 20±ceÆ guard could save an exÇ
pensive bird.
20
CHANGE
"THE WHOLE
coMplete T·3 eng´ne fuel control
unit includes the T
1
temperatuRe sensing
eleMe¼t.
¶o±ÈºÈ±È, 67-NoveMÉer types, neverÊ
like N-E±V-E±ÀËtÌke the sensi¼g eleÍ
Me¼t tube loose fRom the fueL contRoL
regulatoR. That's strictly a ÎOb for depot
dµDeÏ.
THING±
Each fuel controL µÐt ´s caL´ÉrateD
with its tempeRatuRe sensor. Hook´ng an
Old se¼sOr to a new fuel cOntrol causes
power sµRges, high EÑT, hot staRts, enÇ
g´ne damage.
»¼d a sudDen drOp ´¼ poweR duri¼g
lift±Off, Or a sudden power suRge On
touchdow¼ can hurt a p´lot's prideËnot
to Òe¼tio¼ the ÉirD's hide!
Change the fueL control Éy disconÍ
¼ecti¼G the TÓ sensr at the engine ´nlet.
You'lL f´nD the easy-does-´t É´t in chapter
5 of the eng´ne tech ManuaLsËTÄ 55±
2840±229±24 (»pr 71) and TÄ 55-2840±
23Ô±24 (JuL 71). It'll save money, DownÍ
t´Õe, and frazzled neRves.
The fueL co¼trol has its own special
_
shÖppinG ÉOx. Use it When you ship the
olD cO¼trol, and its sensOr, to depot.
YOu'll f´nD pacKinG pOOp in the e¼Gine
TÄ.
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