(4)  
IPC 77-21-03 Fig 1

 (5)  
IPC 77-21-04 Fig. 1

 B.  
Access

 (1)  
Location Zone
 412 Engine 1 - Turbine Exhaust Case
 422 Engine 2 - Turbine Exhaust Case
 432 Engine 3 - Turbine Exhaust Case
 442 Engine 4 - Turbine Exhaust Case

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE B
FLANGE P  FLANGE P 
SEE  A  FLANGE S  FLANGE S 
FLANGE T  FLANGE T 

CSEE PROBE THERMOCOUPLE EGT (TT4.95) (4 LOCATIONS)  CABLE CLAMPS SEE I  SEE  E 
1. RIGHT EGT (TT4.95) CABLE THERMOCOUPLE  K CABLE CLAMP SEE 
CLAMPS CABLE LSEE  TURBINE EXHAUST CASE 
TURBINE EXHAUST CASE  2. LEFT EGT (TT4.95) CABLE THERMOCOUPLE 
SEE  D 
SEE  J 
SEE  H  SEE  F 
SEE  G  FWD  A  SEE EGT (TT4.95) THERMOCOUPLE CABLE TERMINAL BOX M  B  FWD 

Exhaust Gas Temperature (TT4.95) Thermocouple Cable Installation
Figure 401 (Sheet 1)

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 ALL  ú ú N01 Page 402 ú Oct 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
4.  NUT-CHROMEL STUD 4. NUT-CHROMEL STUD
(2 LOCATIONS) (2 LOCATIONS)

5. WASHER  5. WASHER
3.  NUT-ALUMEL STUD
3. NUT-ALUMEL STUD
(2 LOCATIONS)  (2 LOCATIONS)(2 LOCATIONS)
(2 LOCATIONS) HARNESS HARNESS8. WASHERLEADS LEADS
(2 LOCATIONS)
6.  BOLT
6.  BOLT
CLAMP 7. NUT  CLAMP 7. NUT
8.  WASHER (2 LOCATIONS)
HARNESS
LEADS
HARNESS
LEADS 6. BOLT

CLAMP
6. BOLT  BRACKET
9. BOLT
CLAMP
BRACKET

EGT (TT4.95)
CLAMP
THERMOCOUPLE EGT (TT4.95) PROBE THERMOCOUPLE
7. NUT PROBE
7.  NUT CLAMP
1.  RIGHT EGT (TT4.95)
1. RIGHT EGT (TT4.95)
THERMOCOUPLE

7.  NUT
THERMOCOUPLE
CABLE

CABLE
1 O'CLOCK POSITION  4 O'CLOCK POSITION
C D
3.  NUT-ALUMEL STUD HARNESS
4.  NUT-CHROMEL STUD
8.  WASHER (2 LOCATIONS) LEADS (2 LOCATIONS)
(2 LOCATIONS) 9. BOLT
4.  NUT-CHROMEL STUD (2 LOCATIONS) CLAMP
3.  NUT-ALUMEL STUD BRACKET
5.  WASHER
(2 LOCATIONS) (2 LOCATIONS) 8. NUT
6.  BOLT
HARNESS

6. BOLT
CLAMP
7.  NUT LEADS
8. WASHER (2 LOCATIONS)
5.  WASHER (2 LOCATIONS)
9.  BOLT HARNESS LEADS CLAMP
17. SPACER
CLAMP
2.  LEFT EGT (TT4.95) THERMOCOUPLE CABLE
EGT (TT4.95)
2.  LEFT EGT (TT4.95)
THERMOCOUPLE THERMOCOUPLEBRACKETPROBE
7.  NUT 10 O'CLOCK POSITION
CABLE
7 O'CLOCK POSITION
F E
Exhaust Gas Temperature (TT4.95) Thermocouple Cable Installation
Figure 401 (Sheet 2)

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 ALL  ú ú N01 Page 403 ú Oct 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
EPR (PT4.95) MANIFOLD
14. BRACKET (REF) 1. RIGHT
FWD EGT (TT4.95)
THERMOCOUPLE
CABLE FLANGE T
1. RIGHT
15. BRACKET  EGT (TT4.95) THERMOCOUPLE CABLE
FLANGE P 7. NUT PLATE13. BRACKET EPR (PT4.95)
16. BRACKET MANIFOLD
2. LEFT  17. SPACER 
THERMOCOUPLE EGT (TT4.95)  (2 LOCATIONS)  FWD 
CABLE 
9. BOLT  FLANGE T 
12. PLATE  (6 LOCATIONS)  10. BOLT  BRACKET  9. BOLT 
　
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