TM 55-1520-240-23-5
6-207.2
HIGH TEMPERATURE TEST OF ENGINE TRANSMISSION TEMPERATURE
TRANSMITTER
(Continued)
6-207.2
Temperature over 430ºF (221ºC) can
damage temperature transmitter or
heater probe.
4.
Using PROBE CONTROL on tester (3), increase
temperature from 374ºF to 405ºF. Multimeter
shall indicate a closed circuit (2 ohms or less) by
the time the unit reaches 405ºF.
5.
Lower temperature to 374ºF. Multimeter shall
indicate open circuit (500,000 ohms or more)
when unit cools to 374ºF or lower.
6.
Turn PROBE CONTROL on tester (3) fully
counterclockwise. Turn FUNCTION SELECT
and MASTER POWER switches OFF.
7.
Remove test leads of multimeter (4) from chip
detector (5).
Allow heater probe to cool before
removing temperature transmitter. Hot
probe can burn hands and fingers. If
personnel are burned while handling
hot probe, seek medical attention
immediately.
8.
Remove temperature transmitter (1) and chip
detector (5) from heater probe (2).
9.
Disconnect heater probe (2) from tester (3).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
6-674
