(b)
Remove the two bolts, the two nuts, and the clamp that attach the harnesses together and to the engine bracket.
(c)
Remove the two bolts and two nuts that attach the lower junction box to the engine flange.
S 034-032-C02
(2) Do these steps to disconnect the connector:
(a) Disconnect the connector (on the lower extension harness) from the lower junction box with the fork wrench.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
9 PROBE EGT SYSTEM (RIGID MOUNT) ú 77-21-01
ú CONFIG 2 ú C02 Page 419 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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. 1 JUNCTION BOX LOWER
PROBE NO. 2 PROBE NO. 3
SEE B
LOWER EGT HARNESS AND PROBES A
Lower EGT Thermocouple Harness and Probe Installation
Figure 404 (Sheet 1)
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9 PROBE EGT SYSTEM (RIGID MOUNT) ú 77-21-01
ú CONFIG 2 ú C02 Page 420 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
Lower EGT Thermocouple Harness and Probe Installation
Figure 404 (Sheet 2)
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9 PROBE EGT SYSTEM (RIGID MOUNT) ú 77-21-01 ú CONFIG 2 ú C02 Page 421 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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) Put protective caps on the connector and the receptacle.
S 024-033-C02
(3) Do these steps to remove the probes:
(a)
Remove the two bolts that attach each probe to the engine boss.
(b)
ENGINES WITH EGT AIR DEFLECTORS; Remove the EGT air deflector from each probe.
(c)
Carefully remove the probes from the engine.
(d)
Put protective caps on the probes and the engine bosses.
TASK 77-21-01-404-023-C02
9. Lower EGT Thermocouple Harness and Probes Installation
______________________________________________________
A. Equipment
(1) Fork Wrench - AN8508-14, Snap-on Tools Company, 8049-28th St Kenosha, WI 53140
B. Consumable Materials
(1) D00601, Grease, (CP2101) graphite - GP460, Aeroshell 8
C. 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
D. 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
E. Procedure
S 424-034-C02
(1) Do these steps to install the probes (Fig. 404):
(a) Remove protective caps from the probes and the engine bosses.
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