4.  Install Landing Gear Control Cables
A.  String replacement cables through floor beams and over pulleys.
NOTE: For cable length and fittings see chart in Fig. 401.
B.  Attach cables to selector valve control quadrant and install cotter pins.
C.  Connect turnbuckles.
D.  Adjust control system (Ref 32-31-0 A/T).
E.  Install left inboard floor panel in cabin. Install passenger seats (Ref Chapter 25, Passenger Seats).

502  Landing Gear Control Cable Installation 
Jun 20/90  Figure 401 (Sheet 2)  32-31-41 
Page 403 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

LANDING GEAR SELECTOR VALVE - REMOVAL/INSTALLATION
1.  Equipment and Materials
A.  Gear Ground Lock Assemblies (Ref 32-00-01)
B.  Hydraulic Fluid, Fire Resistant - BMS 3-11
2.  Remove Landing Gear Selector Valve
A.  Check that landing gear ground lock assemblies are installed (Ref 32-00-01).
B.  Depressurize hydraulic system A and air charge in hydraulic reservoir.
C.  Disconnect selector valve actuating link at selector valve (Fig. 401).
D.  Disconnect all hydraulic lines from selector valve. Cap all lines to prevent contamination.
E.  Remove bolts attaching selector valve to structure.
F.  Remove selector valve from airplane. Remove hydraulic fitting from valve, discard O-rings and cap ports.
3.  Install Landing Gear Selector Valve
A.  Install hydraulic fittings and new O-rings lubricated with hydraulic fluid in selector valve.
B.  Fill valve with hydraulic fluid. Plug lines and cap ports of valve.
C.  Place selector valve in position and install mounting bolts.
D.  Attach actuating link to selector valve.
E.  Remove caps and plugs and connect hydraulic lines to valve.
F.  Test landing gear control system per 32-31-0, Adjustment/Test.
G.  Perform a retraction test on the main landing gear only (Ref 32-32-0, Adjustment/Test).
H.  Check hydraulic connections for leaks.
May 20/82 32-31-51 Page 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

Landing Gear Selector Valve Installation  500 
32-31-51  Figure 401  May 15/67 
Page 402 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

LANDING GEAR SELECTOR VALVE QUADRANT ASSEMBLY - REMOVAL/INSTALLATION
1.  Equipment and Materials
A.  Gear Ground Lock Assemblies (Ref 32-00-01)
2.  Remove Landing Gear Selector Valve Quadrant Assembly
A.  Check that landing gear ground lock assemblies (Ref 32-00-01) are installed.
B.  Depressurize hydraulic system.
C.  Remove seats per Chapter 25 and remove left inboard floor panel between station 663 and station 685 in passenger cabin.
D.  Loosen turnbuckles on cables LGVA and LGVB to relieve cable tension (Fig. 401).
E.  Remove cable retaining cotter pins and detach cables from quadrant.
F.  Disconnect selector valve actuating link from bellcrank.
G.  Remove bellcrank from quadrant shaft.
H.  Remove quadrant assembly mounting bolts and nuts.
I.  Remove quadrant assembly.
3.  Install Landing Gear Selector Valve Quadrant Assembly
A.  Place quadrant assembly in place on upper side of wheel well ceiling (Fig. 401).
B.  Install mounting bolts and nuts.
C.  Apply a fillet seal around the bottom of the quadrant support housing (Ref Chapter 51, Sealing).
D.  Install bellcrank on quadrant shaft. Tighten nut to within 480 to 600 pound-inches torque.
E.  Connect selector valve actuation link assembly to bellcrank.
F.  Attach cables to quadrant and secure with cotter pin.
G.  Tension cables, rig and test control system (Ref 32-31-0, Adjustment/Test).
H.  Replace left inboard floor panel.
I.  Install seats.
May 20/82 32-31-61 Page 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

Landing Gear Selector Valve Control Quadrant Assembly  500 
32-31-61  Figure 401  May 15/67 
Page 402 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

LANDING GEAR SELECTOR VALVE QUADRANT ASSEMBLY - INSPECTION/CHECK
1.  General
A.  These data consist of illustrations and wear limit charts. No procedure is given in this section for access to permit inspection. Refer to Landing Gear Selector Valve Quadrant Assembly -Removal/Installation.
　
中國(guó)航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737 AMM 飛機(jī)維護(hù)手冊(cè) 起落架 LANDING GEAR(81)