53-52-01
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A
747-400
MAINTENANCE MANUAL
3. NOSE
2. ALIGNMENT RADOME
FITTING
(24 LOCATIONS)
4. HINGE ARM
(TOP)
A
SEE A
1. GUIDE LINK 5. TOP HINGE
(TOP) A ARM WITH A
SEE B KEY CAP
CONDUCTOR
STRAP
6. TOP HINGE ARM
WITHOUT A KEY CAP
E
7. TORQUE TUBE
DIVERTER
STRIPS E
(8 LOCATIONS)
8. LOWER HINGE
ARM WITHOUT
A KEY CAP
9. LOWER HINGE
ARM WITH
A KEY CAP
D 10. HINGE ARM
(LOWER)
D
B
12. LATCH
(6 LOCATIONS) C
B FWD
C 11. GUIDE LINK
(LOWER)
Nose Radome Installation
Figure 201 (Sheet 1)
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5. TOP HINGE ARM WITH A KEY CAP
26. KEY
4. HINGE ARM
FWD
TOP HINGE A
SEAL
3. NOSE RADOME
ALIGNMENT FITTING ROLLER
FWD ALIGNMENT FITTING A-A
A
747-400
MAINTENANCE MANUAL
21. ADJUSTMENT FITTING
22. SHIM
23. BEARING SUPPORT FITTING
7. TORQUE TUBE
6. TOP HINGE ARM WITHOUT A KEY CAP
24. ADJUSTING NUT 13. QUICK-RELEASE PIN
14. HOLD-OPEN FITTINGS
20. BUMPER MOUNT
15. ADJUSTMENT
FITTING
SHIMS
19. BUMPER LOCKNUT
18. BUMPER RETAINER
HOLD-OPEN FITTING
17. RUBBER BUMPER ATTACHMENT AND
ADJUSTMENT BOLT
ALIGNMENT
FITTING 16. BUMPER STRIKE
FITTING 4. TOP HINGE ARM
(FULL OPEN
POSITION)
FWD
HOLD-OPEN LOCK AND STRIKE
FITTING ADJUSTMENT
B
Nose Radome Installation
Figure 201 (Sheet 2)
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A
747-400 MAINTENANCE MANUAL
STUD
THE ALUMINUM GROUND
SPRING WHICH IS NOT
LATCH
FWD
PAINTED
D-D
E-E
ALL MATING SURFACES MUST BE CLEAN AND NOT PAINTED TO SUPPLY A CORRECT GROUND.
Nose Radome Installation
Figure 201 (Sheet 3)
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A
747-400 MAINTENANCE MANUAL
(c)
Repeat the two steps given before for the five remaining latches.
(d)
Open the nose radome until the bumper strike fitting on the upper and lower hinges touches the rubber bumper on the bulkhead (Detail B).
(e)
Push the plunger on the quick-release pins found near each rubber bumper, and remove the pin from the recess.
(f)
Install a quick-release pin in each hold-open fitting.
TASK 53-52-01-412-003
3. Nose Radome Closing
___________________
A. Access
(1) Location Zone
111 Radome
B. Procedure
S 412-004
(1) Close the nose radome (Fig. 201):
(a)
Push the plunger on the quick-release pins and remove the pin from each hold-open fitting (Detail B).
(b)
Put a quick-release pin in each recess that is found near a rubber bumper.
(c)
Close the nose radome.
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