D.
Prepare for removal
S 862-025
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (AMM 09-11-00/201).
S 492-026
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
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A
747-400
MAINTENANCE MANUAL
SEE A
SPINDLE
SEE B
2A 3A
5. SPINDLE BOLT
4. UPPER CONDUIT 1A. BUSHING/PINBRACKET
ASSEMBLED
SPINDLE
1. PIN
3. UPPER JURY 2. END
STRUT
12. LOCKRING
11. O-RING BOLT/LUBE INSERT
A
9.
LUBE INSERT
10.
APEX BOLT
BUSHING/ BOLT
3. UPPER JURY STRUT
JUNCTION BOX
7. DOWNLOCK
SENSORS BUSHING/
BOLT
BUSHING/ BOLT
ELECTRICAL
CONDUIT
ASSEMBLED - REFER TO 32-13-10 FOR WEAR LIMITS
8. LOWER
JURY STRUT B
Body Gear Upper Jury Strut Installation
Figure 201 (Sheet 1)
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747-400
MAINTENANCE MANUAL
NO. INDEX PART NAME DIM. DESIGN LIMITS WEAR LIMITS WORN PART REPLACE PART WORN REPAIR INSTR. REPAIR
DIAMETER DIM. MITTED PER-WEAR 3 ANCE MAX CLEAR-DIAM
MIN MAX
1A BUSHING ID 1.2500 1.2510 1.2555 0.0065 X 2
PIN OD 1.2480 1.2490 1.2455 X 1
2A BUSHINGS 1.6250 1.6370 1.6460 0.0240 X 2
BUSHINGS 1.6220 1.6240 1.6130 X 2
3A END CAPS 3.3010 3.3140 3.3310 0.0680 X
BUSHINGS 3.2630 3.3050 3.2460 X 2
PART IS REPAIRABLE. REFER TO OVERHAUL MANUAL FOR REPAIR INFORMATION.
PROCURE REPLACEMENT BUSHING. INSTALL BUSHING PER 20-11-01 WITH INTERFERENCE FIT.
LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED.
Body Gear Upper Jury Strut Installation
Figure 201 (Sheet 2)
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S 492-027
(3) Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 862-005
WARNING: REMOVE THE AIRPLANE WEIGHT FROM THE GEAR TO PREVENT AN
_______ ACCIDENTAL GEAR TURN FORWARD AROUND THE TRUNNION. THE TRUNNION CAN MOVE THE DRAG STRUT/JURY STRUT INBOARD. THIS CAN CAUSE INJURY TO PERSONS.
(4)
Lift the airplane until the wheels are clear from the ground (AMM 07-11-01/201).
E.
Procedure
S 492-006
(1) Install the restraining tool on the downlock bungee
(AMM 32-33-16/401).
NOTE: The bungee is spring loaded and you must hold it to
____
release the pressure on the apex bolt.
S 032-007
(2) Remove the downlock sensors (7) from the upper jury strut (3) (AMM 32-61-02/201).
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