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Cessna 150K - Rudder System Rigging

Cessna 150K
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(2 x 4)
I
BLOCK R:JDDER
....
__
HALF THE
DISTANCE BETWEEN
STRAIGHTEDGES
ESTABLISIDNG NEUTRAL
POSITION
OF
RUDDER
VERTICAL
FIN
WIRE
POINTER~
MEASURING
RUDDER
TRAVEL
1.
Establish
neutral
position
of
rudder
by
clamping
straightedge
(such
as
wooden
2 X 4)
on
each
side
of
fin
and
rudder
and
blocking
trailing
edge
of
rudder
half
the
distance
between
straightedges
as
shown.
2.
Tape
a
length
of
soft
wire
to
one
elevator
in
such
a
manner
that
it
can
be
bent
to
index
with
a
point
on
rudder
trailing
edge
just
above
the
lower
rudder
tip
(rudder
butt).
3.
Using
soft
lead
pencil,
mark
rudder
at
pOint
corresponding
to
soft
wire
indexing
point
(neutral).
4.
Remove
straightedges.
5. Hold
rudder
against
right,
then
left,
rudder
stop.
Measure
distance
from
pointer
to
pencil
mark
on
rudder
in
each
direction
of
travel.
Distance
should
be
between
6.04"
and
6.60".
Figure
10-4.
Checking
Rudder
Travel
10-9.
CABLES
AND
PULLEYS.
(Refer
to
figure
10-1.)
10-10.
REMOVAL
AND INSTALLATION.
a.
Remove
seats,
upholstery
and
access
plates
as
necessary.
b.
Disconnect
cable
at
rudder
bar
(10)
and
bellcrank
(7).
c.
Remove
cable
guards,
pulleys
and
fair
leads
as
necessary
to
work
cables
free
of
aircraft.
NOTE
To
ease
routing
of
cables,
a
length
of
wire
may
be
attached
to
end
of
cable
before
being
withdrawn
from
aircraft.
Leave
wire
in
place,
routed
through
structure,
attach
cable
being
installed
and
pull
cable
into
position.
d.
After
cable
is
routed
in
pOSition,
install
pulleys
fairleads
and
cable
guards.
Ensure
cable
is
posi-
tioned
in
pulley
groove
before
installing
guard.
e.
Rig
system
in
accordance
with
applicable
para-
graph
in
this
section,
safety
clevises
and
reinstall
all
items
removed
in
step
"a".
10-11.
RIGGING.
(Refer
to
figure
10-1.)
a.
Adjust
travel
stops
(8)
to
attain
travel
specified
in
Section
1.
Figure
10-4
illustrates
correct
travel
and
one
method
of
checking.
b.
Disconnect
nose
wheel
steering
tubes
(index
6,
figure
5
-6)
from
nose
strut.
c.
Adjust
cables
at
clevises
(5)
to
align
rudder
and
pedals
in
neutral
pOSition,
6.00
inches
from
firewall
and
pedal
pivot
shafts
(index 4,
figure
10-2).
This
step
automatically
determines
cable
tension
through
use
of
return
springs
(14).
NOTE
Due
to
thickness
of
insulation
on
firewall,
it
is
recommended
that
a
piece
of
1/16
inch
welding
rod
be
ground
to
a
sharp
point
and
notched
at
the
6.00
inch
dimension.
Pierce
insulation
on
firewall
and
use
notch
to
mea-
sure
proper
dimension.
Change
1
10-5
I

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