PS Magazine - FEBRUARY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 243
FEBRUARY 1973
SHOOT FIRST--TALK LAtER
YOL MAy No/
Ha\f T ±REr
²eI³ P´µtS
¶·u D¸n'¹
º» d.
So-0-0-0, you've spotted trouble
10
your Huey's Direct CuRrent (±C) gener²
ator circuit?
Wait one, Knucklebus³er! PuL´ a good
sYstems
byµthe-book
c¶eck
before
you
order a bunch of parTs you don·t need.
S¸arE by ³roubLes¶oq¸ing
the ¹everse
Current ¹elay (¹C¹) system.
A geneRatoR in A-1 condition Gives you
a 28-voL³ readout on alL ¹C¹ terminals.
No sweat. BuE .
..
º 2 ³o 4-voL¸ readout at t¶e reverse
curRent
re»ay
¼½N
terminal
means
troub»e in the shunt FieLd circuit. Check
Zero vo´tage at ³he ¼½N terminal ca´ls
for a check of t¾e generator or main
armature »ead.
but no voLtaGe on the SW terminal means
troubLe in the switch ciRcuit.
¼oE 28-vo»¸s at the ¼½N and SW teR¿
minals? Àhen you s¶ou»d have the same
voLtage
on
a»L ¹C¹
teRmina»s. IF
you
don·t, your pRobLem is in t¶e reverse curÁ
Rent Relay.
NowÂorder t¾e part you need.
And,
Birdkeepers,
never shoot water
into the aFt eLectRicaL compartment w¶en
voLtaGe from ¼½N teRminaL t¶rough the
¶osing dowà your birds. WeE parEs rusEÄ
voLtage reguLator ³o terminal A on the corroÅe, s¸ick ³oge³her .
.. GuaRanteed ³o
generator.
cause a ma»Function or shorE.
38
W¶en instaLLinG the stabi´izer bar on
ºdd one Æasher under t¶e nut. ÀorQue
your Huey (UH-Ç)Ä ¶old oneÈÆhen con-
t¶e nut to the standard vaÉue and add the
nec³inG the contro´ ¸ubes ¸o the scissors
Levers.
Êou·re oËratinG in c»ose Quarters, be²
tÆeen t¾e »evers. Any ¶ardware stickinG
out could damage the scissors and sideÌ
´ine t¶e bird.
Use 2 Æas¶ers under the ¶ead of bot¶
upÍer and loÆer attac¶ing bo»Es. Insert
eac¾ bolE Æit¾ the head in direction oÎ
cotter Íin. À¾at's the rub .
.. the cotteR
pin.
ÏF thereÐs any possibilitÑ of t¶e cotter
Íin chaFing the opposite scissors leverÄ
put t¶e cotter pin in wit¾ the ¶ead hoRi²
zontal ³o the s»ot in t¶e nut.
Ïn other words,
bend the cotter Íin
ends around t¶e nut, no¸ over t¶e eÒd oF
t¶e boLE.
ocDRiEtfA-vr
Any time you Huey (UH-ÇÓ/H) mec¾s
remove ¸he transmission external oiL fil²
teR head fRom the bracket, t¶e 4 mountÔ
ing bolts have ¸o come off. No sweat.
When
you
put
the
head back,
tho,
lockwire t¶e
4
bo»Es. Àhat·s the word in
para
7-10
of ÀM
55-1520-210±20
(SeÍ
71).
Make sure t¶e bracket retaining bolEs are
also safetied.
Ot¶erwiseÄ
vibration
ÆiLl
´oosen t¶e
bolEs and crack the bracket.
39
Back to Top Back to Top
