Piper Cherokee Six - Page 407

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
4955
1.
CONTROL
ARM
2.
RPM
ADJUSTMENT
SCREW
2
3.
CONTROL
WHEEL
4
5.
BOLT
ASSEMBLY
LOWPITCH
ANGLE
A
200
32-300
31
32R-300
PARALLEL
TO
APPROXIMATE
CENTER
LINE
OR
GOVERNOR
5
Figure
7A-3.
Propeller
Governor
2.
Adjust
the
governor
by
means
of
the
fine
adjustment
screw
(2)
for
2700
RPM.
To
do
this,
loosen
the
high
RPM
fine
adjustment
screw
locknut
and
turn
the
screw
in
a
clockwise
direction
to
decrease
engine
speed
or
in
a
counterclockwise
direction
to
increase
engine
speed.
NOTE
One
revolution
of
the
fine
adjustment
screw
will
increase
or
decrease
the
engine
speed
approximately
20
RPM.
3.
Reinstall
upper
engine
cowl
and
repeat
step
b
to
ascertain
proper
RPM
setting.
4.
After
setting
the
proper
high
RPM
adjustment,
run
the
self-locking
nut
on
the
fine
adjustment
screw
against
the
base
projection
to
lock.
5.
Ascertain
that
the
governor
control
arm
(1)
is
adjusted
to
the
proper
angle
on
the
control
wheel
(3)
as
shown
in
Figure
7A-3.
d.
With
the
high
RPM
adjustment
complete,
the
control
system
should
be
adjusted
so
that
the
governor
control
arm
will
contact
the
high
RPM
stop
when
the
cockpit
knob
is
0.062
to
0.125
of
an
inch
from
hitting
the
face
of
the
instrument
panel
with
Serial
Nos.
3240000
and
3240565.
Airplanes
with
Serial
Nos.
3240566
and
up,
control
system
adjustment
clearance
is
0.010
to
0.030
of
an
inch
from
forward
stop
on
the
power
quadrant.
To
adjust
the
control
knob
travel,
disconnect
the
control
cable
end
from
the
control
arm,
loosen
the
cable
end
jam
nut
and
rotate
the
end
to
obtain
the
desired
level
clearance.
Reconnect
the
cable
end
and
tighten
jam
nut.
e.
It
is
usually
only
necessary
to
adjust
the
high
RPM
setting
of
the
governor
control
system,
as
the
action
automatically
takes
care
of
the
positive
high
pitch
setting.
Revised:
7/29/77
POWER
PLANT
2G11