TASK 32-34-00-825-001
 2.  Main Gear Manual Extension System Adjustment (Fig. 501)____________________________________________
 A. Consumable Materials
 (1)  
Corrosion Preventive Compound - MIL-C-16173, Grade 2 or MIL-C-11796, Class 3 (AMM 20-30-21)

 B.
References

 (1)  
AMM 07-11-11/201, Jack Airplane

 (2)  
AMM 20-10-10/401, Turnbuckle Locking Clips

 (3)  
AMM 29-15-00/201, Hydraulic Systems A, B and Standby

 (4)  
AMM 32-00-01/201, Ground Lock Assemblies

 (5)  
AMM 32-13-11/401, Main Landing Gear Shock Strut Doors

 C.
Prepare for the Adjustment

 S 495-021
 WARNING: MAKE SURE THAT THE GROUND LOCK ASSEMBLIES ARE INSTALLED IN ALL
_______ THE LANDING GEAR. WITHOUT THE GROUND LOCK ASSEMBLIES, THE LANDING GEAR COULD RETRACT AND CAUSE INJURIES TO PERSONS OR DAMAGE TO THE EQUIPMENT.
 (1)  
If the ground lock assemblies are not installed in all the landing gear, do this task: Ground Lock Assemblies installation (AMM 32-00-01/201).

 S 585-022

 (2)  
Lift the airplane with jacks until all tires are clear from the ground (AMM 07-11-11/201).

 (3)  
Connect the external electrical power supply.

 S 865-023
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TURNBUCKLES
CABLE MLGEA (R)
SEE B
CABLE MLGEA (L)
SEE A
16.10
INCHES
RELEASE HANDLE  14.40
APPROXIMATELY
V-SLOT
FWD
MANUAL EXTENSION CONTROL A
Manual Extension System on the Main Landing Gear Figure 501 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
MLGEA CABLE
5. RETURN SPRING CABLE GUARD
1. QUADRANT SUPPORT
9. NUT
FORWARD STRUCTURE 8. WASHER

3. BOLT SEE D 2. SPACER 19. NUT
4. QUADRANT
 ASSEMBLY

18. WASHER
17. BEARING
11. BEARING 6. UPLOCK RELEASE ROD
16. SPACER
13. CAMSHAFT ARM
SEE C
10. CAMSHAFT
15. CAM
AFT STRUCTURE

FWDINBD14. SLEEVE 12. SLEEVE
B
FIXEDCAM SHAFT
ARM  SUPPORT
UPLOCK RELEASE RODROLLER
CRANK AND
CAM QUADRANT SPRING STOP
UPLOCK HOOK
GUARD +0.03 CRANK0.12
-0.02
INCH

UPLOCK LINKS
RELEASE ROD QUADRANT
UP AND LOCKED CD Manual Extension System on the Main Landing Gear Figure 501 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 865-024
 (4)  
Make sure that all circuit breakers on the circuit breaker panel (P6) for the landing gear are closed.

 S 015-025

 (5)  
Remove the inner door of the shock strut for the main landing gear to adjust the uplock release rod (AMM 32-13-11/401).

 S 025-003

 (6)  
Remove the ceiling panels for the cargo compartment at approximately body station 420.

 S 035-019

 (7)  
Remove the turnbuckle locking clips from the cable MLGEA
 (AMM 20-10-10/401).

 D.  
Main Landing Gear Extension System Adjustment

 S 835-028
 (1)  
Do these steps for the fixed uplock release rod:

 (a)  
Pressurize the hydraulic systems A (AMM 29-15-00/201).

 (b)  
Remove the ground lock assembly from the main landing gear to be adjusted (AMM 32-00-01/201).
　
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