S 014-025-N00
(4)
Open the core cowl panel (AMM 71-11-06/201).
S 014-030-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(5)
Open the thrust reverser (AMM 78-31-00/201).
D.
Remove the Thermocouple Probe for the 2.9 Bleed Valve
S 014-003-N00
(1)
Remove the two nuts that attach the harness lead to the thermocouple probe.
S 034-019-N00
(2)
If the clamp bolt is welded on the bracket, remove the clamp nut from the bracket.
S 034-020-N00
(3)
If the clamp bolt is not welded on the bracket, then remove the bolt from the bracket.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITH 2.9 BLEED ú
75-32-06
VALVE THERMOCOUPLE PROBE ú ú N02 Page 404 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 034-004-N00
(4)
Remove two bolts that attach the bracket and the thermocouple probe to the 2.9 bleed valve.
S 024-005-N00
(5)
Remove the thermocouple probe and the bracket from the 2.9 bleed valve.
S 034-006-N00
(6)
Install the protection cover to the open boss of the 2.9 bleed valve.
TASK 75-32-06-404-007-N00
3. Install the 2.9 Bleed Valve Thermocouple Probe (Fig. 401)
______________________________________________
A. Consumable Materials
(1)
D00390 Oil - Engine
B.
References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
(4)
Location Zone
412 Engine 1 - HPC 1 or 10 o'clock
422 Engine 2 - HPC 1 or 10 o'clock
432 Engine 3 - HPC 1 or 10 o'clock
442 Engine 4 - HPC 1 or 10 o'clock
(5)
Access Panel
415 Left Thrust Reverser Half - Engine 1
416 Right Thrust Reverser Half - Engine 1
425 Left Thrust Reverser Half - Engine 2
426 Right Thrust Reverser Half - Engine 2
435 Left Thrust Reverser Half - Engine 3
436 Right Thrust Reverser Half - Engine 3
445 Left Thrust Reverser Half - Engine 4
446 Right Thrust Reverser Half - Engine 4
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES WITH 2.9 BLEED ú
75-32-06
VALVE THERMOCOUPLE PROBE ú ú N02 Page 405 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
C. Procedure
S 434-008-N00
(1)
Remove the protection cover from the boss of the 2.9 bleed valve.
S 644-013-N00
(2)
Lubricate two bolts and one clamp bolt with engine oil.
S 424-010-N00
(3)
With two bolts, attach the bracket and the thermocouple probe to the
2.9 bleed valve.
S 434-011-N00
(4)
Tighten the bolts to 85-95 pound-inches (9.6-10.7 newton-meters).
S 434-012-N00
(5)
Attach the harness to the thermocouple probe with the two nuts.
(a)
Tighten the nuts with your hand.
S 434-032-N00
(6)
If the clamp bolt is welded on the bracket, attach the small ground
cable and clamp to the clamp bolt and install the clamp nut on the
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