(a)
Remove the clamp that attaches the T12 sensor electrical cable to the inlet cowl bracket.
(b)
Install the clamp on the cable.
(c)
Remove the four bolts, washers, and dampers that attach the T12 sensor to the inlet cowl.
(d)
Remove the sensor and flange from the inlet cowl recess.
(e)
Align the flange on the sensor and temporarily attach the sensor to the engine mounted support bracket with the bolts, washers, and dampers from the T12 sensor.
NOTE: Use two to four nuts to temporarily attach the sensor
____
to the support bracket.
S 034-004-C00
(3)
Remove the T2 temperature sensor from the inlet cowl as follows
(Fig. 402):
(a)
Remove the clamps that attach the T2 sensor capillary tube to the inlet cowl bracket and engine flange bracket.
(b)
Install the clamps on the tube.
(c)
Remove the four bolts that attach the T2 sensor to the inlet cowl.
(d)
Remove the sensor from the inlet cowl recess.
(e)
Temporarily attach the sensor to the engine mounted support bracket with the T2 sensor bolts.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE B
SUPPORT PMC BRACKET SEE A
INLET
COWL
FWD CLAMP
T12 TEMPERATURE FAN CASE SENSOR
A SEE C
APPLY SEALANT HERE T12 TEMPERATURE SENSOR BOLT (4 LOCATIONS) WASHER (4 LOCATIONS) T12 TEMPERATURE SENSOR INLET COWL
DAMPER (4 LOCATIONS)
FLANGE
FWD
B C
Figure 401 T12 Temperature Sensor Installation
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE B SEE A
SENSOR T2 TEMPERATURE
(4 LOCATIONS) BOLT CLAMP TUBE CAPILLARY SEE C
INLET COWL FWD A FAN CASE
INLET COWL SENSOR T2 TEMPERATURE BRACKET SUPPORT HOUSING SENSOR
STOWAGE BOLT
CLAMP
FWD B T2 Temperature Sensor Installation Figure 402 SEALANT APPLY HERE TUBE CAPILLARY C (3 LOCATIONS) SENSOR ATTACH POINT T2 TEMPERATURE
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 034-005-C00
(4) Remove the thermal anti-icing (TAI) duct as follows (Fig. 403):
(a)
Disconnect the electrical connector from the temperature switch.
(b)
Disconnect the sensing line for the pressure switch from the TAI duct.
(c)
Remove the couplings at the aft face of the inlet cowl lip and immediately aft of the engine inlet attachment flange.
(d)
Remove the duct from the cowl.
CAUTION: INSTALL A CAP ON THE PNEUMATIC DUCT AS QUICKLY AS POSSIBLE
_______ AFTER YOU REMOVE THE TAI DUCT TO PREVENT CONTAMINATION. CONTAMINATION OF THE PNEUMATIC DUCT CAN CAUSE DAMAGE TO THE EQUIPMENT.
(e)
Install caps on the ends of the TAI duct, pressure switch tube, and temperature switch electrical connections.
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