Aileron And Tab; Fault Isolation -Aileron Control System - Piper Cheyenne IIIA Airplane Maintenance Manual

PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Aileron and Tab
1. Fault Isolation -Aileron Control System
CHART 1
FAULT ISOLATION (AILERON CONTROL SYSTEM) (Sheet 1 of 2)
Fault
Cause
Remedy
Lost motion between
control wheel and
aileron.
Cable tension too low.
Linkage loose or worn.
Adjust cable tension.
Check linkage and tighten
or replace.
Broken pulley.
Cables not in place on
pulleys.
Improper rigging.
Replace pulley.
Install cables correctly.
Check cable guards.
Check rigging in the control column
and crossover (torque tube) shaft,
and at the bellcranks in the fuselage
and the wings.
Resistance to control
wheel rotation.
System not lubricated
properly.
Lubricate system.
Cable tension too high.
Control column chain
improperly adjusted.
Pulleys binding or
rubbing.
Cables not in place on
pulleys.
Bent aileron and/or hinge.
Cables crossed or
routed incorrectly.
Interference between
fittings.
Adjust cable tension.
Adjust chain tension.
Replace binding pulleys and/or provide
clearance between pulleys
and brackets.
Install cables correctly.
Check cable guards.
Repair or replace aileron and/or hinge.
Check routing of control
cables.
Check control column fittings in pilot's
control column. Linkages to
bellcrank from control column.
Control wheels not
synchronized.
Incorrect control
column rigging.
Rig and check roller chain firmness
between the two control wheels.
EFFECTIVITY:
040-999
27-10-00
Jan
10/90
Jan 10/90