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 (1)  Do these steps to disconnect the connector (Fig. 406):
 (a)  
Disconnect the connector (on the right extension harness) from the right junction box with the fork wrench.

 (b)  
Put protective caps on the connector and the receptacle.

 S 024-157-C02
 (2)  Do these steps to disconnect the harness:
 (a)  
Remove the two bolts and the two nuts that attach the right junction box to the engine flange.

 (b)  
Remove the bolt, the nut, and the loop clamp that attach the cable to tne engine flange at two locations.

 (c)  
ENGINES POST-CFMI-SB 77-009; Remove the bolt, the nut, and the two loop clamps that attach the harnesses to the engine bracket.

 (d)  
ENGINES PRE-CFMI-SB 77-009; Remove the bolt, the nut, and the clamp half that attach the cable to the engine bracket.

 TASK 77-21-01-404-027-C02
 13. Right EGT Thermocouple Harness and Probes 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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 9 PROBE EGT SYSTEM (RIGID MOUNT) ú  77-21-01
 ú CONFIG 2 ú C02 Page 432 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 
PROBE NO. 8 
PROBE NO. 7 
RIGHT EGT 
HARNESS AND PROBES 
RIGHT 
JUNCTION BOX  SEE  B 
PROBE NO. 9 

A

Right EGT Thermocouple Harness and Probe Installation
Figure 406 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 9 PROBE EGT SYSTEM (RIGID MOUNT) ú 77-21-01
 ú CONFIG 2 ú C02 Page 433 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////

B

Right EGT Thermocouple Harness and Probe Installation

Figure 406 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 9 PROBE EGT SYSTEM (RIGID MOUNT)  ú 77-21-01 ú CONFIG 2 ú C01 Page 434 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(3)  AMM 78-31-00/201, Thrust Reverser System
 C. Access
 (1)  
Location Zones
 504 Left Engine - Left Side
 505 Left Engine - Right Side
 604 Right Engine - Left Side
 605 Right Engine - Right Side

 (2)  
Access Panels
 5738L Left Thrust Reverser - Left Engine
 5739L Right Thrust Reverser - Left Engine
 5838R Left Thrust Reverser - Right Engine
 5839R Right Thrust Reverser - Right Engine

 

 D. Procedure
 S 434-158-C02
 (1)  Do these steps to connect the connector (Fig. 406):
 (a)  
Remove protective caps from the connector and the receptacle.

 (b)  
Connect the connector (on the right extension harness) to the right junction box. 1) Tighten the connector with the fork wrench to

 170-190 pound-inches (19-21 N.m).
 S 424-049-C02
 (2)  Do these steps to connect the harness:
 (a)  
Install the loop clamp, the bolt, and the nut that attach the cable to the engine flange at two locations. 1) Tighten the bolts and the nuts to 30-35 pound-inches

 (3.5-4 N.m).

 (b)  
ENGINES POST-CFMI-SB 77-009; Install the two loop clamps, the bolt, and the nut that attach the harnesses to the engine bracket. 1) Tighten the bolt and the nut to 25-30 pound-inches
　
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