S 014-099-C03
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO THE EQUIPMENT CAN OCCUR.
(5) Open the left thrust reverser (AMM 78-31-00/201).
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9 PROBE EGT SYSTEM (SOFT MOUNT) ú 77-21-01
ú CONFIG 3 ú C06 Page 414 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
E. Remove the Lower EGT Extension Harness
S 034-033-C03
(1) Do these steps to disconnect the connectors (Fig. 403):
(a)
Disconnect the connector (on the lower extension harness) from the left junction box with the fork wrench.
(b)
Disconnect the connector (on the lower extension harness) from the lower junction box with the fork wrench.
(c)
Disconnect the connector (on the forward extension cable) from the main junction box with the fork wrench.
(d)
Put protective caps on the connectors and the receptacles.
S 024-180-C03
(2) Do these steps to disconnect the extension harness:
(a)
Remove the bolt and the clamp that attach the harness to the engine bracket at two locations.
(b)
Remove the bolt, the nut, and the clamp that attach the lower extension harness to the engine bracket at two locations.
(c)
Remove the two bolts and the two nuts that attach the main junction box to the engine flange.
TASK 77-21-01-404-008-C03
7. Lower EGT Extension Harness Installation
________________________________________
A. Equipment
(1) Fork Wrench - AN8508-14, Snap-on Tools Company, 8049-28th St Kenosha, WI 53140
B. References
(1)
AMM 71-11-02/201, Fan Cowl Panels
(2)
AMM 77-21-00/501, EGT Indicating System
(3)
AMM 78-31-00/201, Thrust Reverser System
C. Access
(1) Location Zones
504 Left Engine - Left Side
604 Right Engine - Left Side
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9 PROBE EGT SYSTEM (SOFT MOUNT) ú 77-21-01
ú CONFIG 3 ú C03 Page 415 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
LEFT JUNCTION BOX
MAIN JUNCTION BOX
LEFT
JUNCTION BOX
LOWER
EXTENSION
HARNESS
SEE B
A
Lower EGT Thermocouple Harness Extension Installation
Figure 403 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
9 PROBE EGT SYSTEM (SOFT MOUNT) ú 77-21-01
ú CONFIG 3 ú C03 Page 416 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
CLAMP
LOWER JUNCTION BOX BOLT BOLT BOLT (2 LOCATIONS) LOWER EXTENSION HARNESS CLAMP NUT BOLT (2 LOCATIONS)
NUT
CONNECTOR CLAMP NUT
BOLT
CLAMP
B
Lower EGT Thermocouple Harness Extension Installation
Figure 403 (Sheet 2)
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9 PROBE EGT SYSTEM (SOFT MOUNT) ú 77-21-01
ú CONFIG 3 ú C03 Page 417 ú Mar 12/00
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