ABX DC-9 Посібник з технічного обслуговування

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ABX Air Inc.
Printed: 9/30/2010 at 3:00:58 PM
REV 11 2008/12/11
AILERON AND RUDDER TRIM CONTROL MECHANISM - INSPECTION/CHECK
1. Tools and Equipment Required
A. Protractor (5916715, Douglas Aircraft Co.) or equivalent, may be used to measure
control surface angles.
B. Control surfaces are adjust to neutral position only. If surface throw limits are not
obtained, check system for obstruction, excessive wear, or damage.
2. Inspection/Check - Aileron and Rudder Trim Control Mechanism
A. Check Aileron Trim Control
NOTE: Angular dimensions for checking aileron trim tab travel are measured by
holding protractor on rigging reference lines on lower surface of tab as
described in 27-00 , Maintenance Practices.
(1) Rotate aileron trim control knob to extreme right and left positions, then rotate knob
to align pointer with rig .neutral notch. Check that mechanism operates smoothly
without binding and that aileron trim tabs are returned to faired position.
(2) Rotate trim control knob clockwise until stops contact and make following checks.
(a) Check that left trim tab is 20 1/2 (plus2, -1) degrees above faired position.
(b) Check that right trim tab is 20 1/2 (plus2, -1) degrees below faired position.
(3) Rotate trim control knob counterclockwise until stops contact and make following
checks.
(a) Check that right trim tab is 20 1/2 (plus2, -1) degrees above faired position.
(b) Check that left trim tab is 20 1/2 (plus2, -1) degrees below faired position.
(4) Return trim tabs to faired position.
B. Check Rudder Trim Control
NOTE: Linear dimensions for checking rudder travel are measured from aft upper
corner of rudder to center of adjacent vertical stabilizer trailing edge.
WARNING: BEFORE PRESSURIZING HYDRAULIC SYSTEM, MAKE
(1) Pressurize right hydraulic system (see 27-00 , Maintenance Practices).
EFFECTIVITY: ALL
DC-9
MAINTENANCE MANUAL
CERTAIN THAT LANDING GEAR CONTROL LEVER IS IN
DOWN POSITION AND THAT LANDING GEAR GROUND
LOCKPINS ARE INSTALLED, MAKE CERTAIN THAT ALL
OTHER CONTROLS ARE IN CORRECT POSITIONS TO
PREVENT INADVERTENT OPERATION OF CONTROL
SURFACES OR OTHER EQUIPMENT.
This page must not be retained for reference
27-10-07-6
CONFIG 00
Page 1
1999/11/15