Elevator System; Elevator Trim System - Thrush Aircraft S2R-R1340 Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2R-R1340
Table 7-1: Control System Trouble Shooting Chart (Continued)
PROBLEM
Rudder pedals not
neutral when rudder
is streamlined.
Incorrect rudder
travel.
Resistance to control
stick movement.
Incorrect elevator
travel.
Correct elevator
travel cannot be
obtained by adjusting
belcrank, idler and
push tubes.
Trim control lever
moves with excessive
resistance.
Incorrect trim tab
travel.
7-28
AIRCRAFT MAINTENANCE MANUAL
RUDDER SYSTEM (Continued)
CAUSE
Rudder cables
incorrectly rigged.
Rudder horn stops
incorrectly adjusted.

ELEVATOR SYSTEM

Pulley binding or
rubbing.
Binding control stick
bearings.
Elevator hinges need
lubrication.
Elevator belcrank, idler,
and push tubes
incorrectly adjusted.
Control stick stops
incorrectly rigged.

ELEVATOR TRIM SYSTEM

Push rods binding.
Trim tab hinge binding.
Incorrect adjustment of
push rods.
REMEDY
Rig in accordance with rigging
procedures.
Adjust in accordance with rudder
rigging procedures.
Provide proper clearance if rubbing
pulley bracket or guard.
Lubricate bearings. Repair or
replace elevator horns.
Lubricate hinges as required to
give free movement.
Adjust in accordance with rigging
procedures.
Adjust control stick stops in
accordance with rigging
procedures.
Check push rods at fairings for free
movement.
Lubricate hinge. If necessary
replace hinge.
Adjust in accordance with rigging
procedures.
Effective: 01/01/08