(e)
Install the screw (3), washer (2), and nut (4) to attach the wire bundle clamp of the fire detector element to the bracket
(7)
at the 8:00 o'clock position.
1) Tighten the screw (3).
(f)
Install the screw (3), washer (2), and nut (4) to attach the wire bundle clamp of the fire detector element to the bracket
(7)
at the 11:00 o'clock position.
(g)
Install the two screws (3) and washers (2) to attach the fire detector tube clamps to the bracket (7) at the 8:00 o'clock position. 1) Tighten the screws (3).
(h)
Install the screw (3) and washer (2) to attach the drain tube clamp for the 2.5 bleed valve actuator to the bracket (7).
NOTE: This bracket (7) is attached to the angle gearbox (11)
____
at the 8:00 o'clock position.
G. Put the Airplane Back to its Usual Condition.
S 414-062-N00
(1) Install segment No. 4 of the fan exit lining (AMM 72-34-03/401).
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72-62-01
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 414-070-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(2)
Close the thrust reversers (AMM 78-31-00/201).
S 414-073-N00
(3)
Close the core cowl panels (AMM 71-11-06/201).
S 414-072-N00
(4)
Close the fan cowl panels (AMM 71-11-04/201).
S 444-071-N00
(5)
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).
S 794-074-N00
(6)
Do the necessary tests of the angle gearbox as shown in the Power Plant Test Reference Table (AMM 71-00-00/501).
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72-62-01
ALL ú ú N01 Page 428 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
ANGLE GEARBOX - INSPECTION/CHECK
________________________________
1. General
_______
A. This procedure gives the task for the inspection of the angle gearbox for signs of oil leaks, cracks, or corrosion.
B. The angle gearbox is found at the 6 o'clock position between the inner and outer walls of the intermediate case.
C. You can open each half of the thrust reverser to get access to the angle gearbox.
TASK 72-62-01-206-001-N00
2. Angle Gearbox Inspection (Fig. 601)
________________________
A. References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 72-34-03/401, Fan Exit Liner Segment
(4)
AMM 72-62-01/401, Angle Gearbox
(5)
AMM 78-31-00/201, Thrust Reverser System
(6)
IPC 72-62-01 Fig. 10
B.
Access
(1)
Location Zone
412 Engine 1 - Angle Gearbox
422 Engine 2 - Angle Gearbox
432 Engine 3 - Angle Gearbox
442 Engine 4 - Angle Gearbox
(2)
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4
C.
Procedure
S 046-010-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
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