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TASK 71-00-00-420-805
1 . General.
A.This procedure gives instructions to install the T12 sensor. The T12 sensor measures total temperature at the fan inlet and is located forward of the engine, at the 12:00 o'clock position on the inlet cowl. Refer to Figure 401.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools. None.
(2)Standard Tools and Equipment.
 
Description
Manufacturer
 
Pliers, Soft-Jaw
Local Purchase
(3)Locally Manufactured Tools. None.
B.Consumable Materials. None.
C.Referenced Procedures. None.
D.Expendable Parts.
 
PPN
Description
 
65950
Gasket
3 . Procedure.
Subtask 71-00-00-420-020
A.Install the T12 sensor (65900) as follows. Refer to Figure 401.
(1)Get access to the T12 sensor through an access panel at approximately 12:00 o'clock position on the inlet cowl.
(2)Install the T12 sensor through the gasket (65950) and into the opening on the inlet cowl.
(3)Attach four sensor dampers (65990) to the four studs on the inlet cowl.
(4)Install four self-locking nuts (65940). Torque the nuts to 106-124 lb in. (12-14 N.m)
CAUTION:
ALWAYS USE TEFLON-JAWED PLIERS TO TIGHTEN THE ELECTRICAL CONNECTORS. YOU CAN DAMAGE THE CONNECTORS IF YOU USE METAL-JAWED PLIERS.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN WHEN YOU CONNECT THEM. CONNECTOR CONTAMINATION CAN CAUSE DAMAGE TO THE EQUIPMENT.
(5)Attach the two electrical cables to the T12 sensor.
(6)Make sure that the electrical cables are clamped into their spring clips on the inlet cowl.
(7)Make sure that you do not leave FOD or tools inside the upper inlet cowl area.
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Figure 401   (Sheet 1 ) Installation of the T12 Sensor
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Figure 401   (Sheet 2 ) Installation of the T12 Sensor