Piper Comanche PA-24 Service Manual page 422

PIPER COMANCHE SERVICE MANUAL
7·15. Blade TrKk. Blade track is dI. ability of oa. blad. tip
to
foUow die ocher. ",bile routiag. iD almost
e
die same plaae. Excessive difftmICt iD blade track • mort tban 0615 iDch • may b. &a iDdicatioll of ben,
blades or improper propelkr
iIIm",nQ'"
Cbeck blade track .. foUows,
L
With the
encin.
shu, doWlland blades vertical. secure
'0
the aircraft a srnoodl b'>ard just und.r the
tip of the lower blade.
Move
the tip fort &ad aft
<broach
ia fuU
"b~ake"
trayel.
makiDs
smaU marks
with a
pencil
at each positio ... Tben ceater the tip between th ...
rrwi<. and scribe a liDe on the board for
the
fuU
width of the tip.
b. CarefuUy rotate propelkr by band
'0
brill. the opposite blade do .... Ceater the tip &nd scnbe •
pencilliDe ..
before and check cba,
lilies
are aD, separated more dian .0615 inch.
c. PropeUm
haYins
.xcess blade track should be removed &nd inspected for bcDt blades or for parts
of sheared "0"
riDs.
or fo...., particles. which have
lodJcd
between hub aDd crankshaf, mountiag faces.
Bea, blades will require repair ancI overhaul of userably.
7·16. PropeUer Go ....... or.
7·17. RcmoyalOfGovcmor.
•. Life b'>th engine cowl side panels by looseaiq the six fasteners.
b. DisconncC! c:onaol able from SOverDor conaol arm.
c. Remove concrol cabl. from cable bracket by
l'CDIoYins
Dua. wuhers. screws aDd clamp.
d.
Remove 'he sovcrnor mountiag stud Dua. It wiD be Deceuary
'0
rlIisc the goveraor .. the DUt5 are
beinJ
removed before the nua .... be completely removed.
e.
Remove the mountiag gasket. If die governor
is
'0
be removed for
I
conaidenble lensm of time
aDd another unit is no, substituted. i,
is
advisable
'0
cover the mounting pad to prevent damage caused by
fomp maner.
7·18. IasWlation Of Goyeraor.
a. Clean the mounting pad thoroughly making very cecuin thac there are no fomgn particles in the
recess around the drive shaft.
b. Place the governor mounting gasket in position with the: raised. panion of the screen f&cang away
from the engine.
c. InsuU the cODtrol cable bracket on the governor.
d. Align 'he splines on the governor shaft with the engine drive and ,Iide 'he governor in'o posiuon.
c. Raise ,overnor off mountinl pad enough to inSt&ll washen and
start
mounting nutS. Torque nuts
evenly.
f.
g.
Connect the control cable end to the lovemor control arm.
Secure control ,able
'0
cable bracker.
h. Adjust governor conaol per puagnph 7·19
POWER PLANT
ISSUED: 8/18172
2 A20
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