53-52-00
ALL ú ú 01 Page 1 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
NOSE
RADOME
HINGE ARM
(UPPER)
B
SEE A
GUIDE LINK
(UPPER) B
CONDUCTOR
STRAP
C
TORQUE TUBE
DIVERTER C
STRIPS
(8 PLACES)
A HINGE ARM
(LOWER)
A
FWD
GUIDE LINK
(LOWER)
Nose Radome
Figure 1 (Sheet 1)
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53-52-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
HEX WRENCH
FWD (REF)
SEAL FWD
SEAL
LATCH SOCKET
NOSE RADOME EYE BOLT
NOSE RADOME
ALIGNMENT
FITTING
LATCH HOOK
FUSELAGE
ALIGNMENT FITTING
STRUCTURE
ROLLER
(REF)
LATCH ALIGNMENT FITTINGS (EXAMPLE 6 LOCATIONS) (EXAMPLE 24 LOCATIONS) A-A B-B
FUSELAGE STRUCTURE QUICK-RELEASE PIN (REF) (STOWED POSITION) UPPER HINGE ARM (FULL OPEN POSITION)
HOLD-OPEN LOCK FITTINGS
ALUMINUM CONDUCTOR FWD
STRAP
1
ADJUSTMENT QUICK-RELEASE SHIMS PIN
RADOME ALUMINUM DIVERTER STRIP
RUBBER BUMPER HOLD-OPEN FITTING ATTACHMENT AND
BUMPER STRIKE ADJUSTMENT BOLTFITTING
CONDUCTOR SPRING
FWD THE ALUMINUM GROUND SPRING WHICH IS NOT PAINTED
HOLD-OPEN LOCK AND STRIKE FITTING (EXAMPLE 2 LOCATIONS) C-C
A 1 ALL MATING SURFACES MUST BE CLEAN AND NOT PAINTED TO GIVE A CORRECT GROUND.
Nose Radome Figure 1 (Sheet 2)
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53-52-00
ALL ú ú 01 Page 3 ú Oct 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
NOSE RADOME - MAINTENANCE PRACTICES
___________________________________
1. General_______
A. This section contains five tasks:
(1)
nose radome opening,
(2)
nose radome closing,
(3)
nose radome removal,
(4)
nose radome installation.
(5)
nose radome temporary repair
B. The removal of the nose radome must be done in a hangar or equivalent area for the protection of the components in the radome.
TASK 53-52-01-012-001
2. Nose Radome Opening___________________
A. Access
(1) Location Zone
111 Radome
B. Procedure
S 012-002
(1) Open the nose radome (Fig. 201):
CAUTION: WHEN YOU RELEASE THE NOSE RADOME LATCHES, MAKE SURE THE
_______ HEX WRENCH IS INSERTED FULLY INTO THE LATCH BEFORE YOU TURN THE WRENCH (SEE SECTION D-D).
DO NOT USE FORCE OR A HAMMER TO PUSH THE WRENCH INTO THE LATCH.
IF YOU DO NOT FOLLOW THESE STEPS, DAMAGE TO THE LATCH CAN OCCUR.
(a)
Put a 5/16-inch hex wrench into the latch socket (Section D-D).
(b)
Push the hex wrench and turn it counterclockwise until the latch hook disengages from the latch eye bolt.
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