Cessna 182 1978 - Elevator Trim Tab Actuator Assembly

MODEL
182
&
T182
SERIES
SERVICE
MANUAL
NOTE
Used
with
electric
trim
assist
installation
-w
1
\
11
,
16
'«
A
= ^
< \.
\
15
8\
z
A
d z
" I
\\
14
1. Actuator
Assembly
2. Nut
10 7
3.
Chain
Guard
4. Screw
12
5.
Sprocket
6.
Bearing
7.
Collar
8. Pin
9. Screw
8
8
4`\
10.
pin
rg \\ \ 7
3 UffW \8'
11. Retaining Ring
i \ \
6
\ \
»
A
12. Housing
~\ ~~\ \ \ ~
f ~>^ \f0
7 13. O-Ring
4\\ \4
5
14.
Bearing
Detail
A
\3
/
/
15. Threaded
Rod End
2 2 16. Bearing
Figure
9-3.
Elevator
Trim
Tab
Actuator
Assembly
9-17.
REMOVAL
AND
INSTALLATION.
e. Rotate
trim
control
wheel
(17) full
forward
(nose
a.
Remove
fuel
selector
valve
handle
and
placard.
down).
Ensure
pointer
(15)
does
not restrict
wheel
b.
Remove
mike
and
remove
mike
mounting
bracket.
movement.
If necessary,
reposition
pointer
using
a
c. Remove
cowl
flap
control
knob.
thin
screwdriver
to
pry
trailing
leg
of
pointer
out
of
d. Disconnect
electrical
wiring
to
pedestal
lights,
groove.
e. Remove
screws
securing
pedestal
cover
to
structure
and
remove
cover.
NOTE
f.
Reverse
the preceding
steps
for reinstallation.
Full
forward
(nose down)
position
of trim
9-18. RIGGING.
(See figure 9-1.)
wheel is where
further movement is
pre-
vented
by the
chain
or
cable
ends contact-
I
CA»UTION|H
ing
sprockets
or pulleys.
Position
a support
stand
under the
tail tie-
down
ring
to prevent
tailcone
from
dropping
while
working
inside.
f.
With
elevator
and
trim
tab both
in
neutral
(streamlined),
mount
an inclinometer
on tab
and set
a.
Remove
rear
baggage
compartment
wall
and
ac-
to
0
°
.
Disregard
counterweight
areas
of
elevators
cess
plates
as
necessary.
when
streamlining.
These
areas
are contoured
so
b.
Loosen
travel
stop
blocks
(8) on
trim
tab cables.
they
will be
approximately
30 down
at
cruising
speed.
c.
Disconnect
push-pull
tube
(25) from
actuator
(6).
d.
Check
cable
tension
and readjust
turnbuckle
(10)
NOTE
if necessary.
An inclinometer
for
measuring
control
sur-
NOTE
face
travel
is
available
from
the
Cessna
Supply
Division.
See figure 6-4.
If chains
and/or
cables
are
being
installed,
permit
actuator
screw
to rotate
freely
as
g.
Rotate
actuator
screw
in or
out as
required
to
chains
and cables
are
connected.
Adjust
place
trim
tab up
with
a maximum
of
2
°
overtravel,
cable
tension
and
safety turnbuckle
(10).
with actuator
screw
connected
to push-pull
tube
(25).
9-8