G. Connect metering valve input rod attach bolt (3). Input rod attach bolt (3) should be free to move indicating steering system is rigged to valve neutral position.
H. Adjust length of valve rod so that bolt fits freely in valve crank.
(1)
Loosen jamnuts to disengage locking keys.
(2)
Hold loose rodend and turn coupling to change length of rod as required.
(3)
Tighten jamnuts and lockwire.
I. Install bolt and tighten nut to 12-15 pound-inches torque.
J. On fasteners with holes, install cotter pin. Torque may be increased to 25 pound-inches for hole alignment.
K. Remove rigging pin from steering metering valve crank.
L. Remove caps and fittings and connect hydraulic lines to metering valve.
M. Test nose wheel steering system per 32-51-0 and check for leaks.
N. Install cover (1).
5A1
32-51-11 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jun 20/85
RUDDER PEDAL STEERING MECHANISM - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Ground Lock Assembly (Ref 32-00-01)
2. Remove Rudder Pedal Steering Mechanism
A. Check that ground lock assembly is installed in nose gear (Ref 32-00-01).
B. Reduce tension to zero on cables NWSA, NGPPA and NGPPB at the turnbuckles. Gain access to NWSA cable through access panel 1103 and to NGPPA and NGPPB through access panel 3124 (Ref Chapter 12, Access Doors and Panels).
C. Disconnect rod assembly A (18, Fig. 401) at structure.
D. Disconnect rod assembly B (10) at steering arm (5).
E. Remove cable retainer bolt (22) on end of quadrant (Fig. 401, View 2).
F. Remove retainer (21) from cable end and reinstall retainer (21) and bolt (22) on quadrant (23).
G. Disconnect cables NGPPA and NGPPB at the turnbuckles (A, Fig. 401).
H. Remove cotter key (1) and remove nut (20) from mount bolt (13) on upper mounting (19) bracket.
I. Support mount bolt (13), straighten tabs on inverted bolt retainer (12) and remove bolt (13).
J. Remove rudder pedal steering mechanism complete with cables NGPPA and NGPPB.
K. Remove inverted bolt retainer (12) and discard.
3. Install Rudder Pedal Steering Mechanism
A. Position a new inverted bolt retainer (12, Fig. 401, View I).
B. Position rudder pedal steering mechanism complete with cables NGPPA and NGPPB.
NOTE: Check that there is sufficient clearance between clutch crank and end of bolt securing rudder pedal steering quadrant to clutch arm.
C. Install mount bolt (13), nut (20), and cotter key (1).
D. Bend retainer tabs to retain mount bolt (13).
May 20/82 32-51-21 Page 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
E. Thread cables NGPPA and NGPPB through fairleads and connect at turnbuckle.
F. Remove cable retainer bolts (22) and cable retainers (21).
G. Position NWSA cables in cable retainers (21) and install cable retainers.
H. Tighten locknuts and connect rod assembly A (18) to structure.
I. Tighten jamnuts and connect rod assembly B (10) to steering arm.
CAUTION: END OF ROD END MUST COVER AT LEAST ONE HALF OF INSPECTION HOLES IN CONTROL ROD ASSEMBLY. A MINIMUM OF THREE THREADS MUST BE EXPOSED OUTSIDE LOCKNUT ON CONTROL ROD AT CRANK END TO PREVENT INTERFERENCE AND POSSIBLE ROD FAILURE.
NOTE: On airplanes with 3 hole arm, connect rod assembly to center hole.
J. Tension cables and adjust system per 32-51-0, Nose Wheel Steering - Adjustment Test.
K. Check operation per 32-51-0, Nose Wheel Steering System - Adjustment/Test.
L. Install access panel 3124.
Rudder Pedal Steering Mechanism Installation 500
32-51-21 Figure 401 (Sheet 1) Jun 20/84
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
500 Rudder Pedal Steering Mechanism Installation
Aug 15/73 Figure 401 (Sheet 2) 32-51-21
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
STEERING SYSTEM CABLES - REMOVAL/INSTALLATION
1. General
A. All piston position cables can be removed according to this section except for NGPPA(E) and NGPPB(C). These are cables attached to the drum which must be removed by removing the complete rudder pedal steering assembly per 32-51-21. Refer to Overhaul Manual for disassembly of rudder pedal steering assembly.
2. Removal/Installation Piston Position Cables
A. Equipment and Materials
(1)
Rigging Pins - MS20392, 5/16-inch diameter (2 required)
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