737 AMM 飞机维护手册 起落架 LANDING GEAR(80)

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E.  Disconnect sensor linkage at ground spoiler shutoff valve.
3.  Trouble Shoot Control Lever Lock System
A.  Trouble shooting the control lever lock system entails performing an operation check of the control lever into UP position with the safety switch sensor set to simulate shock strut extended. Then check for lock solenoid release by setting sensor to simulate shock strut compressed. Release of the lock solenoid prevents control lever from moving into UP position. Cause of malfunction may be determined by performing a continuity check of the system. Refer to Wiring Diagram Manual for circuit.
B.  If electrical circuit and components check out OK, examine for mechanical malfunction due to loose bolts, jammed or binding linkage, or solenoid.
C.  If mechanical components check out OK, perform Air Safety Sensor adjustment and testing (Ref 32-09-200).
Aug 01/96 32-31-21 Page 101 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.

LANDING GEAR CONTROL LEVER LOCK SOLENOID - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Gear Ground Lock Assembly - F72735 (Ref 32-00-01)
2. Remove Landing Gear Control Lever Lock Solenoid
A. Check that landing gear ground lock assemblies are installed in all gear (Ref 32-00-01).
B. Open LEVER LATCH & PRESS WARN circuit breaker on P6 panel.
C. Depressurize hydraulic system.
D. Release and lower the center and first officer's instrument panels.
E. Remove baseplate assembly mounting screws (Fig. 401).
F. Disconnect baseplate assembly electrical connector and remove baseplate assembly.
G. Deleted
H. Disconnect electrical leads from lock solenoid.
I. Remove lock solenoid mounting screws and remove lock solenoid coil from slug.
505 
May 15/80  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  32-31-31 Page 401 

3. Install Landing Gear Control Lever Lock Solenoid
A.  Position lock solenoid coil in place over slug and install mounting screws (Fig 401).
B.  Connect electrical leads to lock solenoid.
C.  Position baseplate assembly and connect baseplate assembly electrical connector.
D.  Install baseplate assembly mounting screws.
E.  Connect external power and close LEVER LATCH & PRESS WARN circuit breaker on P6 panel.
F.  Depressurize hydraulic system.
G.  Move landing gear control lever up. Check that lock solenoid prevents lever from moving past OFF position.
H.  Pull override trigger and check for free movement of control lever into UP position. Return lever to OFF.
I.  Disconnect teleflex cable at right main gear upper torsion link.
J.  Energize air safety sensor by moving landing gear air safety sensor actuator to cover sensor face.
K.  Operate control lever. Check that control lever is free to move into any position. Leave the control lever in the DN position.
L.  Close and fasten instrument panels.
M.  Connect teleflex cable at right main gear upper torsion link.
500 
32-31-31 Page 402  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  May 15/78 

543  Landing Gear Control Lever Lock Solenoid Installation 
Feb 15/73  Figure 401  32-31-31 
Page 403 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

LANDING GEAR CONTROL CABLES - REMOVAL/INSTALLATION
1.  General
A.  The forward segments of the control cables are removed by removing the control lever assembly. The antiskid switch cam must be removed from cable C before cables can be withdrawn (Ref 32-31-11). For cable reference, see Fig. 401.
2.  Equipment and Materials
A.  Gear Ground Lock Assembly
3.  Remove Landing Gear Control Cables
A.  Check that landing ground gear lock assemblies are installed (Ref 32-00-01)
B.  Depressurize hydraulic system A.
C.  Remove passenger seats (Ref Chapter 25, Passenger Seats). Remove left inboard floor panel between station 663 and station 685.
D.  Disconnect turnbuckles (Fig. 401). Turnbuckles are accessible through hatch 1103 forward of nose wheel well.
E.  Take out cable retaining cotter pins and detach cables from quadrant assembly.
F.  Attach cords to cable terminals to facilitate stringing replacement cables.
G.  Pull cables from pulleys and floor beams. Do not pull cords all the way out.
510 
May 20/82  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  32-31-41 Page 401 

Landing Gear Control Cable Installation  500 
　
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