PIPER
COMANCHE
SERVICE
MANUAL
2.
The
low
pi.ch
stOp adjusanell.
is
awle
by
a
screw
in
the
IIOIe
of
die
propeller cylillder.
RotuiDs
the
screw clockwise
iIu:rases
die
low
pi.ch IIId reduces
die
RUic
RPM
by
abou.
100
RPM
for
each
half
tIIm;
or
vice
vasa.
b.
After
the
low
pitch
stOp
bu
beea
adjlllted for
proper
blade
qle.
die
so-r
sboWd
th
...
be
adjllSted
'0
obtain
maximwn rated
.....
e
RPM
dllriDa tlke-off climb u
described
ill
pansraph
7C·17.
7C·13.
8IIde
TrKk.
Blade
trad
is
die
ability
of
ODe
blade tip ro follow
die
other
...
bile rorating.
ill
aim
....
die
same plane. ExcOIIi
...
cliffere!lCe..in
blade track
-more
tbm
.0625
inch-
may be III inclfcation
of
ben.
blacla
or
improper propeUer
inrtaUatiOIl.
Check blade track u follows.
•.
Wid!
the
eftIine
shur down and blacla vertical.
RCIIft
rO
the
aircraft a
_oadl
board
just
under
the
tip
of
the lower blade. Move
the
tip fore and aft
tbro"lb
in
fuU
"blade-sb"'e"
travel. 1DIkia.1IIIlll marks
with
• peacil
at
each poaitioll.
Tben
center
the
tip
bera
....
dlae
marIu
&Dd
scribe
a liae
011
die
board
for
the
fuU
width
of
die
tip.
b. CarefWly
rowe
propeller
by
hllld
.0
briIIJ
die
opposite blade' down. Cellter
the
tip and ICribc a
peacilline
u before and check
that
lines are
DO'
,.arated
more
dI
...
. 0625 inch.
c. Propellers haviac excess blade
track,
•
..:.1
be removed and inspected for
ben.
blades
or
for
pans
of
shared
"0"
ring. or
fore.,.
particles. which ha
...
lodp
between
bub
IIId crankshaft mounting fac
...
Ben. blad
..
will require repair and overhaul
of
aascmbly.
7C·14. PropeUcr
Go
......
or.
7C-15.
RcmOYlli
Of
PropeUer Go¥aDor.
&.
Lif.
the
left side panel
of
the
""line
cowling.
b.
Dileonne
..
control cable from governor control arm.
c. Remove
the
aovcmor
mounting stud nuts. It will
be
necessary
to
raise
the
governor
as
the mits an:
bemg removed before the
DUll
can be comple.ely removed.
d.
Remove the rnounrinB gasket.
If
the
IOYerIlOr
is
ro be removed for a considerable length
of
time
and
ano.her
uni,
is
no.
substitu,ed.
i.
i.
advisable
'0
cover the mounting pad
to
p
.....
n.
damage caused by
foreign
nutter.
7C·16. InstaUaaon
Of
PropeUcr Governor.
&.
Clean the mounting pad thoroughly making very
ccruin
that
there are no foreign particle. in
'he
re
....
around
the
drive shaf
••
b. Place
the
governor
mountins
guket
ill
position with the raiKd portion
of
the
screen facing away
from the engine.
c.
Align
,he
splines
on
,he
governor shaft with
the
engine drive and slide the
govcmo,
in posi,ion.
d. RUse governor
off
mounting pad enough to
insull
washers
aDd
st.art
mounting nuts.
Torquc
nuts
evcnly.
c.
Conncct the
conaol
cable end to the governor
conuol
ann.
f. Adjust goyernor control per parognph 7C·17. -
2
G14
POWER
PLANT
ISSUEO:
8/18172
To Next Page
Loading...
Need help?
General
