S 014-064-N00

 (6)  
Open the core cowl panels (AMM 71-11-06/201).

 D.
Remove the Left Thermocouple Cable (Fig. 401).

 S 034-004-N00
 (1)  Remove the four nuts (3 and 4) and washers (5 and 8) that attach the harness leads of the left thermocouple cable (2) to the studs of the left thermocouple probe.
 NOTE: Do this at each thermocouple probe location (7 and 10 o'clock
____ positions on the turbine exhaust case). Temporarily install the nuts and washers on the thermocouple probe studs after you remove the harness leads.
 S 034-005-N00
 (2)  
Remove the two bolts (6 and 9), nuts (7), and spacers (17, if applicable) that attach the thermocouple cable clamps to the bracket at each location.

 S 034-007-N00

 (3)  
Remove the bolts (6) and nuts (7) that attach the thermocouple cable clamps to the flange T brackets on the turbine exhaust case.

 S 034-008-N00

 (4)  
Remove the bolts (9 and 10) and spacers (17) that attach the plates
 (11 and 12) to the brackets (13, 14, and 15) at the 6 o'clock
 position on the turbine exhaust case.

 S 034-009-N00

 (5)  
Cut the lockwire and remove the screws (23) that attach the cover

 (24) on the terminal box.

 (6)  
Remove the cover (24) from the terminal box.

 S 014-066-N00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 034-010-N00
 (7)  
Remove the four nuts (21 and 22) that attach the harness leads of the EEC thermocouple cable (20), right thermocouple cable (1), and left thermocouple cable (2) to the terminal box studs.

 S 034-065-N00

 (8)  
Remove the EEC harness leads, right harness leads, and left harness leads from the terminal box studs.

 NOTE: Temporarily install the nuts (21 and 22) on the terminal box
____ studs after you remove the three thermocouple cable harnesses.
 S 024-012-N00
 (9)  
Remove the screws (25) that attach the outer clamp half (26) and inner clamp half (27) to the terminal box.

 S 034-067-N00

 (10)
 Remove the thermocouple cables from the two clamp halves
 (26 and 27).

 NOTE: After you remove the thermocouple cables, temporarily install
____ the outer clamp half (26) on the inner clamp half (27) and the terminal box with the screws (25).
 S 414-012-N00
 (11)
 Temporarily install the cover (24) on the terminal box with the screws (23).

 S 024-080-N00

 (12)
 Remove the left thermocouple cable (2) from the turbine exhaust case of the engine.

 E. Remove the Right Thermocouple Cable (Fig. 401)
 S 034-016-N00
 (1)  Remove the four nuts (3 and 4) and washers (5 and 8) that attach the harness leads of the right thermocouple cable (1) to the studs of the right thermocouple probe.
 NOTE: Do this at each thermocouple probe location (1 and 4 o'clock
____ positions on the turbine exhaust case). Temporarily install the nuts and washers on the thermocouple probe studs after you remove the harness leads.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 77-21-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)  S 034-017-N00Remove the two bolts (6 and 9) and nuts (7) that attach the thermocouple cable clamps to the bracket at each location.
 (3)  S 034-018-N00Remove the bolts (6) and nuts (7) that attach the thermocouple cable clamps to the flange T brackets on the turbine exhaust case.
 (4)  S 034-019-N00Remove the bolts (6) and nuts (7) that attach the plate (18) to the bracket (19) at the 5 o'clock position on the turbine exhaust case.
 (5)  S 034-020-N00Remove the bolt (9) and nut (7) that attach the clamp to the bracket at the 5:30 o'clock position on the turbine exhaust case.
　
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