(f)  
Remove the O-rings from the fuel lines, the shrouds and the sleeves. 1) Discard the O-rings.

 TASK 73-21-02-404-010-C00
 3.  CIT Sensor Installation
_______________________
 A.  General
 (1)  This task contains the steps to install the sensor.
 B.  Consumable Materials
 (1)  
Grease - Graphite (CP2101) (AMM 70-10-01/201)

 (2)  
Leak-Tek - 160X (CP2170) (AMM 70-10-01/201)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-21-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(3)  
Pressurized gas - dry nitrogen, 0-55 psi
 (0-380 kPa), local purchase

 (4)  
Petrolatum - Pure Mineral (CP2102), local
 purchase

 (5)  
Sealant - RTV 108 (CP2268) (AMM 70-10-01/201)

 C. References
 (1)  
AMM 70-10-01/201, Consumable Materials

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AMM 71-00-00/501, Power Plant

 (4)  
AMM 71-11-02/201, Fan Cowl Panels

 (5)  
AMM 72-33-03/401, Fan Duct Panel

 (6)  
AMM 78-31-00/201, Thrust Reverser

 D. Access
 (1)  
Location Zones
 502/602 Left Fan Cowl Panels
 503/603 Right Fan Cowl Panels
 504/604 Left Thrust Reversers
 505/605 Right Thrust Reversers
 506 Engine No. 1 - Turbine Frame
 606 Engine No. 2 - Turbine Frame

 (2)  
Access Panels
 5737L Engine No. 1 - Right Fan Cowl Panel
 5738L Engine No. 1 - Left Thrust Reverser
 5739L Engine No. 1 - Right Thrust Reverser
 5746L Engine No. 1 - Left Fan Cowl Panel
 5837R Engine No. 2 - Right Fan Cowl Panel
 5838R Engine No. 2 - Left Thrust Reverser
 5839R Engine No. 2 - Right Thrust Reverser
 5846R Engine No. 2 - Left Fan Cowl Panel

 E. Do these steps to Install the Sensor
 S 644-011-C00
 (1)  Put a layer of petrolatum on these O-rings for the P6 and the PB sensor fittings:
 (a)  
Line O-ring (0.676 inch (17.17 mm) Inside Diameter (ID))

 (b)  
Shroud O-ring (1.015 inch (26.69 mm) ID)

 (c)  
Sleeve O-ring

 (d)  
Fitting O-ring (0.864 inch (21.94 mm) ID)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú C02 Page 407 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 434-012-C00
 (2)  Install the O-rings in the correct locations.
 S 424-013-C00
 CAUTION:_______THE SENSOR IS SENSITIVE DO NOT HANDLE ROUGHLY. BE CAREFUL WHEN YOU MOVE THE SENSOR TO PREVENT DAMAGE TO THE COIL, TUBE FITTINGS AND THE MATING FLANGE. DO NOT TRY TO REPAIR THE INTERNAL PARTS OF THE SENSOR OR THE COIL.
 DO NOT PERMIT THE PERMANENT DEFORMATION OF THE FUEL TUBES WHILE YOU MOVE THEM. IF YOU DO NOT OBEY THIS PRECAUTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.
 (3)  Do these steps to install the sensor:
 (a)  Use light hand pressure only to carefully move the fuel tubes aft from the forward surface of the bundle junction.
 CAUTION: INSTALL THE FUEL TUBES ON THE SENSOR CAREFULLY TO PREVENT
_______ DAMAGE TO THE SEALING SURFACES. IF YOU DO NOT OBEY THIS PRECAUTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.
 (b)  
Put the sensor into the port in the fan frame. 1) Hold the sensor in its position. 2) Slowly move the fuel tubes on the fittings on the sensor.

 (c)  
While you hold the sensor to the fan frame, install the 4
 bolts, that is lubricated with grease, with your fingers.

 (d)  
Move the tube nuts forward.
　
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