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时间:2011-10-30 09:32来源:蓝天飞行翻译 作者:航空
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 (2)  
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).

 S 864-004

 (3)  
Remove the pressure from the left and right hydraulic systems and reservoirs (AMM 29-11-00/201).

 S 864-005

 (4)  
Supply electrical power (AMM 24-22-00/201).

 S 874-007

 (5)  
Push the two brake pedals fully and release. Push the pedals six times to bleed the hydraulic pressure from the parking brake lines. Make sure the PARK BRAKE indicator light on the quadrant stand panel, P10, is off.

 S 864-008

 (6)  
Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:

 (a)  
11S16, BRAKE TEMP (if installed)

 (b)  
11S15, LANDING GEAR AIR/GND SYS1


 

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757 
MAINTENANCE MANUAL
 (c) 11S19, LANDING GEAR AIR/GND SYS2
 (d) 11S18, LDG GEAR ANTISKID 1-5
 (e) 11C31, ANTISKID 2-6 (Left Gear)
 (f) 11C32, ANTISKID 3-7 (Right Gear)
 (g) 11S22, ANTISKID 4-8 (Right Gear)
 E.  Remove the Main Landing Gear
 S 014-010
 (1) Remove the strut door (AMM 32-12-04/401).
 S 864-094
 WARNING: CLEAR THE AREA BELOW THE WING BEFORE YOU DEFLATE THE SHOCK_______
 STRUT. IF YOU DEFLATE ONE SHOCK STRUT THE WINGTIP CAN MOVE
 DOWN AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2) Deflate the shock strut.
 (a) Remove the air valve cap.
 WARNING: LOOSEN THE AIR VALVE NUT A MAXIMUM OF TWO TURNS. AIR_______
 PRESSURE CAN BLOW THE VALVE OUT AND INJURE PERSONS.
 (b) Loosen the outer nut a maximum of two turns, let the shock
 strut deflate fully.
 (c) Install a flexible hose on the air valve. Put the other end of
 the hose in a bucket to catch the hydraulic fluid.
 (d) Loosen the air valve nut fully.
 S 584-012
 (3) Lift the airplane approximately 11 inches (AMM 07-11-01/201).
 S 584-076
 (4) When you use the removal/installation dolley,
 do the steps that follow:
 GUN  (a) Adjust the height of the airplane on jacks to permit removal of
 GUN  the wheel, brake and brake rod (AMM 32-45-01/401,
 GUN  AMM 32-41-10/401, and AMM 32-11-19/401).
 GUN  (b) Install the dolley.

 

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A
757
MAINTENANCE MANUAL

RETRACT
1
1. PIN
ACTUATOR
B
LOWER SIDE STRUT
B
DRAG STRUT
A
C
LOWER SIDE STRUT
LOWER SWIVEL
C
SHOCK STRUT
A
2. LOWER SWIVEL
7. NUT
3. TANG WASHER6. NUT
4.
 ANTIROTATION

5.
 WASHER


A-A BOLT
2
9. SPACER
RETRACT (2 LOCATIONS)
ACTUATOR
8. PIN
2. LOWER 1 SWIVEL 10. ANTIROTATION
BOLT SHOCK STRUT
0.003-0.005 INCH COMBINED CLEARANCE
11. NUT 15. SPLINED 12. WASHER WASHER
13.
 NUT 16.NUT

14.
 TANG WASHER


SHOCK STRUT  18. WASHER 19. NUT  17. ANTIROTATION BOLT 
B-B  C-C 
1  INSTALL THE PIN WITH THE HEAD FORWARD AND/OR UP 
2  CAUTION: INSTALL THE SPACERS AS SHOWN 

Main Landing Gear Installation
Figure 401 (Sheet 1)

 

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