C.
Extension and Retraction of the Nose Landing Gear (AMM 32-34-00/001)
_________________________________________________
(1)
The extension and retraction system for the nose landing gear includes hydraulic actuators and valves. These components give the sequence and operate the movement of the nose landing gear and the forward doors for the nose landing gear.
D.
Landing Gear Alternate Extension (AMM 32-35-00/001)
________________________________
(1) The alternate extension system for the landing gear includes hydraulic actuators, valves, and a pump. These components release the uplocks on the landing gear, open the doors, and let the landing gear extend when the normal extension system does not operate. The alternate extension system is also used to open the landing gear doors from the ground to get access to the wheel wells for maintenance.
32-30-00
ALL ú ú 01 Page 1 ú May 28/99
A
757
MAINTENANCE MANUAL
NORMAL
EXTENSION/
RETRACTION
OF THE NOSE
LANDING GEAR
(REF 32-34-00)
NORMAL
EXTENSION/
RETRACTION
OF THE MAIN
LANDING GEAR
(REF 32-32-00)
Landing Gear Extension and Retraction Schematic
Figure 1
32-30-00
ALL ú
ú 01 Page 2
ú Mar 20/90
A
757 FAULT ISOLATION/MAINT MANUAL
EXTENSION AND RETRACTION
COMPONENT SHT 102 FIG. QTY ACCESS/AREA REFERENCE
ACTUATOR - MAIN GEAR ALTERNATE UPLOCK RELEASE 2 2 LEFT & RIGHT MAIN WHEEL WELLS 32-35-01
ACTUATOR - MAIN GEAR DOOR 3 2 LEFT & RIGHT MAIN WHEEL WELLS 32-32-12
ACTUATOR - MAIN GEAR DOOR LOCK RELEASE 3 2 LEFT & RIGHT MAIN WHEEL WELLS 32-35-03
ACTUATOR - MAIN GEAR DOOR RELEASE INTERLOCK, M10279,M10280 3 2 LEFT & RIGHT MAIN WHEEL WELLS 32-35-06
ACTUATOR - MAIN GEAR DOWNLOCK 6 2 LEFT & RIGHT MAIN GEAR 32-32-02
ACTUATOR - MAIN GEAR RETRACT 7 2 551BB,651BB WING ACCESS PANELS 32-32-01
ACTUATOR - MAIN GEAR TRUCK POSITIONER 7 2 LEFT & RIGHT MAIN GEAR 32-32-15
ACTUATOR - MAIN GEAR UPLOCK 2 2 LEFT & RIGHT MAIN WHEEL WELLS 32-32-04
ACTUATOR - NOSE GEAR ALTERNATE UPLOCK RELEASE 8 1 NOSE WHEEL WELL 32-35-21
ACTUATOR - NOSE GEAR DOOR 8 1 NOSE WHEEL WELL 32-34-03
ACTUATOR - NOSE GEAR DOOR LOCK RELEASE 8 1 NOSE WHEEL WELL 32-35-22
M10281 ACTUATOR - NOSE GEAR DOOR RELEASE INTERLOCK, 8 1 NOSE WHEEL WELL 32-35-24
ACTUATOR - NOSE GEAR LOCK 8 1 NOSE WHEEL WELL 32-34-02
ACTUATOR - NOSE GEAR RETRACT 11 1 NOSE WHEEL WELL 32-34-01
RETRACTION CONTROL CABLES - LANDING GEAR EXTENSION AND 13 4 MAIN WHEEL WELL AFT TO SELECTOR VALVE IN RIGHT FROM CONTROL LEVER QUADRANT, 32-00-05
CIRCUIT BREAKERS 1 FLT COMPT, P6,P11
LANDING GEAR ALTN EXT CONT, C4177 1 6F5 *
LANDING GEAR ALTN EXT MOTOR, C4248 1 6F6 *
DOORS CLOSE GROUND ACCESS, C4178 1 11S17 *
LEVER LOCK, C1174 1 11S20 *
LIGHT - MAIN GEAR DOOR UNSAFE, L490,L505 3 2 LEFT & RIGHT MAIN WHEEL WELLS *
LIGHT - NOSE GEAR DOOR UNSAFE, L489 8 1 NOSE WHEEL WELL *
MODULE - LANDING GEAR CONTROL LEVER, M937 1 1 FLT COMPT, P3 32-31-01
ALTN EXT SYS, R10267 ALTN EXT SYS, R10266 RESISTOR - (REF 31-01-36, FIG. 101) RELAY - (REF 32-09-00, FIG. 101) SYS NO. 2 AIR/GND, K209 ALTN EXT CONT LATCH, K10370 ALTN EXT CONT, K10369 RELAY - (REF 31-01-36, FIG. 101) M10231 POWER PACK - ALTERNATE EXTENSION SYSTEM, 5 1 RIGHT MAIN WHEEL WELL 32-35-10
SOLENOID - LANDING GEAR LEVER, L1 1 1 MODULE FLT COMPT, P3, CONTROL LEVER *
SWITCH - ALL DOORS OPEN, S10190 12 1 CONTROL ACCESS PANEL, P72 198PR, LANDING GEAR DOOR GROUND *
SWITCH - ALL DOORS OPEN ARM, S10191 12 1 CONTROL ACCESS PANEL, P72 198PR, LANDING GEAR DOOR GROUND *
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本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 2(31)
