PS Magazine - JULY 1986
PS, The Preventative Maintenance Monthly
ISSUE 404
JULY 1986
CH-47C .±²
\
FulL UP
'
on Thrust Control
Make sure
thRust control Is
full UP
beFore
removing
hub nuL³
•
You're risking injury to yourself and damage to your equipmeNt if you
ignore The warnings spelled out in para
5-11
Of ±M
55-1520-227-23±2.
With the thrust control fuLl D²W³, the blades put a lot of force on the
head. When the retaining nut's removed, the rotor heAd can pop up real
quick like. ±he hub, shaft and controls can be damaged and you could suFer
a serious head injury if you're in the way´
Be sure you tie down the rotor blades, toO, when you remove the head with
bLades installedµ ±hat'll keep them from swinging uncontrolled and maybe
injuring somebody or damaging the bird.
4²
JULY 86
´Hµ60A ¶¶·
Stop ±tabilator Injur²e³
r_
-Ea
Dear Editor,
To eliminate ±he hazard caused
by sharp edges of the BLack Hawk
stab²Lator, when a bird is Inside
±he maintenance hangar, we cap
the edges Wi±h Styrofoam, ³ke so:
SSG RoY
l³
Hanusch
Fort B´gg,
NC
(Editor's Note: I you can't fnd STroFoam 1 ¥-in thick, tR gluing two pieces
oF 1±in thick STroFoam together beFore trimming it. NSN 8135-00-892-3920 gets
a 3²
x
35
x
³´inch sheet oF polysTrene plAstic, anD NSN 8040µ¶-159-4884
gets a qua· oF general pu¸ose aDhesive. Be sure to remove the protective caps
when your bird leaves the hanger or they could blow o¹ on the ºight line, and
I
cause »O¼.)
_
·'
JULY 86
4´
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