PS Magazine - TB 43-PS-432
PS, The Preventative Maintenance Monthly
ISSUE 432
NOVEMBER 1988
UH-60A
Dear Editor,
Folding the main rotor blades on our UH-60A's is a pain. The tip of
the blade li±ing pole swivels. ²he blade is heavy and the swivel makes
it hard to control.
I solved the problem by bolting a blade holdeR to the l³±ing pol´.
It slides aRound the blade and makes it eas³er to maneuveR the blade.
Support can make the holder with these materials:
•
One 22x28-in pieCe of 3-in plywood,
•
TWo self-locking nuts, NSN 5µ10-00-126-5754,
•
TWo %-in sheaR bolts, NSN 5µ06-01-014-17µ2,
•
FouR washeRs, NSN 5µ18-00-149-91µ0.
MeasuRe and cut
th´ plywood like this¶
T
7"
1
I-± 28"
-±
1
22''
l
·ut a hole in the wood
the shape of the blade.
Put
a
strip
of
rubber
aRound the edge of the hole.
That keeps wood splinters
fRom damaging the blade¸
¹Rill two %-in holes in the
wood, 2 inches and 9 inches
fRom the bottom of the
V.
L
0²³´µ¶
9±
o·
²
=³´
I
_
µ
2¶
MeasuRe 67 inches and 74
inches up from the bottom
of the pol´'s base and ºRill
a »¼-in hole at each location.
½ttach the blade holdeR to
the
lifting
pole.
Now
the
blade w¾n't be a burden.¿
·À2 Barent Johnson
F
IRwin, ·A
(EditorÁs note: ²hanks foR the back-saving idea.)
Back to Top Back to Top
