Cessna 182 1978 - Elevator Trim Tab Control System

MODEL 182 & T182 SERIES SERVICE MANUAL
SECTION 9
ELEVATOR TRIM
TAB CONTROL
SYSTEM
Page
No.
Page
No.
TABLE
OF CONTENTS
Aerofiche/Manual
TABLE
OF CONTENTS
Aerofiche/Manual
ELEVATOR
TRIM
CONTROL
SYSTEM ............
1K13/9-1
Cables
and Pulleys ...
... 1K18/9-6
Description
..........
1K13/9-1
Removal/Installation
......
1K18/9-6
Trouble
Shooting ........ 1K13/9-1
Pedestal Cover . ........
1K18 9-6
Trim Tab
.........
. 1K14/9-2
Remova/Installation
...... 1K20,9-8
Removal/Installation
..
.... K14/9-2
Rigging ...........
1K20/9-8
Tab
Actuator ..........
1K14/9-2
Electric Trim
Assist
Removal/Installation
......
1K14/9-2
Installation ..........
1K21/9-9
Disassembly
.........
1K14/9-2
Description ..........
1K21.9-9
Cleaning,
Inspection
and
Removal/Installation
......
1K21/9-9
Repair ...........
1K17/9-5
Trouble
Shooting
.......
1K21/9-9
Reassembly
.........
1K17/9-5
Clutch
Adjustment
.......
1K21/9-9
Trim Tab Free-Play
Rigging - Electric Trim
Inspection
..........
1K18/9-6
Assist
. ........
.
1K23/9-11
Tab Control
Wheel
........
.
1K18/9-6
Voltage
Regulator
Removal/Installation
.....
. 1K18/9-6
Adjustment
.........
1K249-12
9-1. ELEVATOR TRIM TAB CONTROL SYSTEM. trim control wheel by means of roller chains, cables.
an actuator and a push-pull tube. A mechanical
9-2. DESCRIPTION. The elevator trim tab, lo- pointer, adjacent to the trim wheel indicates tab
cated
on the trailing edge of the right elevator. is
position. A "nose-up" setting results
in a tab-down
controlled
by a trim wheel mounted in the pedestal.
position. An electric trim assist system
may also be
Power to operate the tab
is transmitted from the installed.
This system is described in paragraph
9-20.
9-3.
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 9-18.
TROUBLE
PROBABLE CAUSE
REMEDY
TRIM CONTROL
WHEEL MOVES Cable
tension too high.
Check
and adjust tension as
WITH
EXCESSIVE RESISTANCE.
specified
in figure 9-1.
Pulleys binding or rubbing.
Open access plates
and check
visually. Install cables correctly.
Cables not in place on pulleys. Open access plates and check
visually. Install cables correctly.
Trim tab hinge
binding. Disconnect
actuator and move tab
to check resistance. Lubricate
or replace hinge as necessary.
Defective
trim tab actuator.
Remove chain from
actuator
sprocket and operate actuator
manually.
Replace
actuator if
defective.
Rusty chain. Check visually. Replace chain.
Damaged sprocket. Check visually. Replace sprockets.
Bent sprocket
shaft.
Observe motion of sprockets.
Replace bent sprocket shafts.
Revision
1
9-1