PS Magazine - APRIL 1979
PS, The Preventative Maintenance Monthly
ISSUE 317
APRIL 1979
'
•I±
Tolerances are close. You may not
be abLe to line up the holes in the
retaining nut and the qUill to insert tHe
cotter pin. If the nut threaDs too far
you Don't have to use a shim to aline
the holes.
Since the holes in the nut are not
centereD, rotate the nut 180 Degrees
(heavy siDe ±nboarD) anD make with
the torque wrench² Also, go to the low
\
siDe of the ³00-300 lb´in torqUe rµnge,
which will
·
help prevent threaD
stretching.
If you still can't insert the cotter pin,
ch¶nge the spacer, NSN 5·65´00¸684´
5818¹ shown in Fig ³90 of TM 55´
1520´2³0´23P (Mar77º. You can even
change the nut» NSN 5310´00¼67 4½
4233. The manufactureD tolerances in
those parts will allow you to install the
Baby Need new ShoE?
_
± .² =³- ´µ¶ ¸
¹º
,»¼ ½¾
Dear Windy,
The Huey jacking setup in Para 1-17
of TM 55±1520-210²20 (SEp 71) is
fIne when you want to lift the whole
bIrd³but wE nEEd to changE just OnE
skId shOe
¾ear Mr. P¿ R.
E.,
The engineer types at the heaD
hangar (TSARCOÀº say itÁs OK. No
sÂecial airframe inspecÃion is requireD
afÄer changing a skiD or skiD shoe in
this manner, either.
Dear WIndy,
Some of our UH´1 'sare cOµIngthru
wIth rubber buµpers on the tail bOoµ
to provIde a cushion FOr thE ¶a· Ro¶Or
¸rIve shaft cover.
Coµpared tO the fragIle anti-chafIng
tape we norµaLy use¹ the b
º
µpers do
a µuch better Job of prevent»g µeta/¼
to±µetal contact between the covEr
And taIl booµ.
When a buµper does wear out, tho,
what's the stock nuµber for a replace¼
½ent¹ WIndy?
SP6
K± F²
Can we use 2 jacks and raIse only
one side of the bird¾ Windy?
CW3P.
R³ e´
Just be sure Ähe birD is parkeD on
Åavement so the jacÆs wonÇt slip anD
Damage the birD. All the other safety
ÅrecauÄionÈ, like roping off an aircraft
on jacÆs, appLy too.
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