PS Magazine - TB 43-PS-427
PS, The Preventative Maintenance Monthly
ISSUE 427
JUNE 1988
CH-47 series .
..
Dear EditoR
Here's a blade stand we made with 2x2-in angle aLuminum to us±
whenever we raise or lower the blades to adjust the pitch change links.
Now we ²on't need 2 or
3
people to ³ft an² hold the blade in place
whIe the PC ³nks are being adjusted´ The blade stand does µhe work.
TO raise the rotor blade, just move the stand toward the tip oF the
blade´
TO lower the blade, move the stand closer to the rotor head.
I
Here's what you need to
make the stand:
AnglE alumInum NSN
9540·00±231·99²1
FElt ±tRIp
NSN
8305·00·81³·³360
2x4
lumbER
Nut± and boLT±
4
fEEt
28
Each
Here are th± blade stand's dimensions:
FElt
²
f
.
-
-
±
²•
±
34´"-µ
³´•1
±tRµp
ovER
2x4
wood
2x2
alumInum
anglE
Be sure not to tighten the hard¶
ware attaching the blade support
to the vertical beam. The blade
suppo· must be able to tilt to Fit
the angle oF the rotor blade.
¸ne caution when you use the
blade stand:
make sure the
stand's legs are placed on the
reinForced seams oF the Fuselage.
That way, you won't dent or tear
the outer skin.
¶¶G
W¹lbert Coleman
F
ºragg, N»
,I
I
i
!¶
42¸
¹º
²³´µ¶
·¸¹º;»¼
•,i
(½D¾¿OÀ'Á ÂO¿Ã: ½ÄÁ¾ÃÀ, qU¾ÅkÃÀ,
:
,
j
ÁÄÆÃÀ, ÅÇÃÄPÃÀÈÇÄ¿'Á ¿ÇÃ ÂÄMÃ OÆ ¿ÇÃ
ÉÄMÃÊ ËOOD ¾DÃÄ!)
,
I
i
'I
Safe Blade Removal
Make sure
y
our bird's rotor blades are tied down be³re
y
ou remove one o´ Tem.
µ´
y
ou don't, Te oTer blades will rotate and ma
y
be hUrt someone¶
·ie down at least one ³rward and one a´t blade liKe it sa
y
s ¸ Para 1¹26 o´ ·º
55»1520»2¼0½2¾¹1¿
JÌÍ 88
À7
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