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32-61-00
ALL ú ú 01 Page 520 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(t)
Put an actuator on these sensors:
1) S612, left body gear tilt
2) S614, right wing gear tilt
3) S613, right body gear tilt
(u)
Move the landing gear lever from the DN to the UP position without the lock override
(v)
Move the landing gear lever from the UP to the DN position.
(w)
Remove the actuators from these sensors:
1) S615, left wing gear tilt
2) S612, left body gear tilt
3) S614, right wing gear tilt
4) S613, left body gear tilt
S 865-207
(7)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P7 Overhead Circuit Breaker Panel
1) 7F22 LANDING GEAR DSP & CONT PRI
2) 7F25 PSEU SECT 1
I.
Put the Airplane in Its Usual Condition
NOTE: Do not do these steps if you will continue to do the other tasks
____
in this procedure.
S 865-144
WARNING: USE THE PROCEDURE IN AMM 32-00-30/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Remove the door locks for the landing gear and close the doors (AMM 32-00-30/201).
S 445-209
(2)
Do this task: Put Safety-Sensitive Systems Back to the Condition Before Air Mode Simulation (AMM 32-09-02/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-61-00
ALL ú ú 06 Page 521 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 865-210
(3) Remove electrical power, if it is not necessary (AMM 24-22-00/201).
TASK 32-61-00-705-039
5. Test of Landing Gear Position Indication________________________________________
A. General
(1)
The position indication test makes sure each uplock and downlock sensor shows the correct indication.
B.
References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 24-22-00/201, Manual Control
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
(4)
AMM 32-00-30/201, Landing Gear Door Locks
(5)
AMM 32-09-02/201, Air/Ground Relays
C.
Special Tools and Equipment
(1)
A27092-84 - Actuator/Deactuator Set - Proximity Sensors
D.
Access
(1)
Location Zone
715 Nose Landing Gear
735 Left Wing Landing Gear
745 Right Wing Lnading Gear
755 Left Body Landing Gear
765 Right Body Landing Gear
E.
Preconditions
S 865-310
(1)
These conditions are necessary for this task:
(a)
Electrical power on (AMM 24-22-00/201).
(b)
Integrated Display System (IDS) is serviceable (AMM 31-61-00/501).
F.
Prepare the Airplane for the Test (Fig. 502)
S 865-046
(1) Make sure that hydraulic systems 1 and 4 are not pressurized (AMM 29-11-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-61-00
ALL ú ú 01 Page 522 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 215-049
(2) Make sure the ground lockpins for the landing gear are installed (AMM 09-11-00/201).
S 865-047
WARNING: USE THE PROCEDURE IN AMM 32-00-30/201 TO INSTALL THE DOOR
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