(2)
A task for the adjustment of the lights.
TASK 33-42-03-962-001
2. Lamp Replacement (Runway Turnoff Lights) (Fig. 201)________________
A. Special Tools and Equipment
(1)
11MIT65B04012 Actuator Lock - Nose Landing Gear Door (Recommended)
(2)
10MIT65B04012 Actuator Lock - Nose Landing Gear Door (Alternative)
(3)
7MIT65B04012 Actuator Lock - Nose Landing Gear Door (Alternative)
B. Parts ~.............................................................................. | AMM | | AIPC | ................. ...........................| | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ...............................................................................| | 201 | 1 | Retaining Screws | 33-42-00 | 01 | 5 | | | 2 | Outer Retaining Ring | | | 15 | | | 3 | Gasket | | | 30 | | | 4 | Lamp | | | 25 | | | 5 | Lamp Beam Adjustment Screws | | | 10 | | | 6 | Inner Retaining Ring | | | 20 | 2......…........…...................................…...........…......….......1
C. References
(1)
20-11-29/201, Sealing Electrical Terminals in Fuel Vapor Areas
(2)
24-22-00/201, Manual Control
(3)
32-00-30/201, Landing Gear Door Locks
(4)
SSM 33-42-10
D. Access
(1) Location Zones
711 Nose Landing Gear Door Lock, Fwd Left
712 Nose Landing Gear Door Lock, Fwd Right
713 Nose Landing Gear Door Lock, Aft Left
714 Nose Landing Gear Door Lock, Aft Right
E. Prepare for the Lamp Replacement
S 862-031
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P414 Power Distribution Center Panel - Left 1) 414L20 LIGHT RUNWAY TURNOFF LEFT & CONT
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
LIGHT ADJUSTMENT TARGET
41FT
63FT
63FT
LIGHTS ADJUSTMENT RUNWAY TURNOFF
TARGET ADJUSTMENT LIGHT SEE A (RIGHT-OPPOSITE) TURNOFF LIGHT LEFT RUNWAY
RING SCREWS (3 LOCATIONS) 1. RETAINING
2. OUTER RETAINING RING
3. GASKET
4. LAMP
SCREWS (3 LOCATIONS) 5. LAMP BEAM ADJUSTMENT
6. INNER RETAINING RING
RUNWAY TURNOFF LIGHT (EXAMPLE) A
Runway Turnoff Lights Lamp Replacement Figure 201
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) 414L21 LIGHT RUNWAY TURNOFF RIGHT
S 492-004
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: "The Installation of the Door Locks on the Nose Landing Gear" (Ref 32-00-30/201).
F. Procedure
S 022-032
(1) Do these steps to remove the lamp:
(a) Remove the retaining screws (1)
NOTE: Do not turn the adjustment screws (5).
____
(b)
Remove the outer retaining ring (2).
(c)
Pull the lamp (4) from the light housing.
(d)
Disconnect the electrical wires.
(e)
Remove the lamp (4).
(f)
Remove the gasket (3) from the lamp.
S 422-033
(2) Do these steps to install the lamp:
(a)
Install the gasket (3) on the replacement lamp.
(b)
Connect the electrical wires to the replacement lamp.
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