Cessna T188C - Page 138

MODEL
188
& T188
SERIES
SERVICE
MANUAL
SECTION
8
ELEVATOR
CONTROL
SYSTEM
Page No.
TABLE
OF
CONTENTS
Aerofiche/Manual
ELEVATOR CONTROL SYSTEM . . .. 1G9/8-1
Description .
G9/8-1
Removal and nstallation
. . 1G10/8-2
Trouble
Shooting ........
1G9/8-1 Arm
Assembly . . .
. 1G1O/8-2
Control Stick
.......
11.0/8-2
Removal
and Installation
. . 1G10/8-2
Elevators
... .. 1G10/8-2
Cables and Pulley
. . 1G10/8-2
Removal and Installation
1G10/8-2
Removal and Installation
. ... 1G10/8-2
Bellcrank
. .....
1G110/8-2
Rigging
.
.
......
. 1G14/8-6
8-1.
ELEVATOR
CONTROL
SYSTEM.
ends,
connect
to the bellcrank,
from
which a
push-
pull
tube is connected
to the elevator
arm. The bell-
8-2.
DESCRIPTION.
The
elevator
system
is corn-
crank
contacts
two primary
stops, used
for
travel
prised
of a control
stick,
bellcrank,
push-pull
tube,
adjustment.
Secondary
stops
are located
on
the
arm
assembly,
cables
and
pulleys.
The turnbuckle
torque
tube bracket.
One stop
is adjustable
and
the
on the
elevator
UP cable
is attached
directly
to the
other is
stationary.
The
secondary
stops
are
used
control
stick below
its
pivot point.
A
transition
cable
to
prevent
overtravel
of
the control
stick,
resulting
attaches
to
the same point
and is
routed through
the
in excess
cable
stretch.
Two elevator
down springs
torque tube
and around
a pulley,
where
it connects
to are
attached
to the bellcrank
to
exert return
force
the elevator
DOWN cable.
Both cables,
at their
aft
from the elevator
UP position.
8-3.
TROUBLE
SHOOTING.
NOTE
Due
to remedy
procedures
in the
following
trouble
shooting
chart
it
may
be necessary
to re-rig
system,
refer
to para-
graph
8-13.
TROUBLE
PROBABLE
CAUSE
REMEDY
NO
RESPONSE
TO CONTROL
Forward
or aft
end of push-pull
Attach
push-pull
tube correctly.
STICK
FORE-AND-AFT
tube
disconnected.
MOVEMENT.
Cables
disconnected.
Attach
cables
correctly.
BINDING
OR JUMPY
MOTION
Defective
bellcrank
or
Replace
bellcrank.
FELT
IN MOVEMENT
OF ELE-
bellcrank
pivot
bearing.
VATOR
SYSTEM.
Cables
slack.
Adjust
to tension
specified
in
figure 8-1.
Cables
not riding correctly
on Route cables
correctly over pulleys.
pulleys.
Defective
pivot
bearing
Replace
bearing.
on
control
stick.
Balance
weight
loose.
Secure balance
weight.
Defective
elevator
hinges.
Replace
defective
hinges.
Lubrication
needed.
Lubricate
in
accordance
with
Section
2.
Defective
pulleys
or cable
Replace
defective
parts
and
guards.
install
guards
properly.
8-1