TM 55-1520-240-23-7
9-25.2
REPAIR AND TEST BATTERY CABLE (AVIM)
(Continued)
9-25.2
8.
Fasten temperature switch (8) and thermistor
(9) to heater probe (10). Connect heater probe
to Exhaust Gas Temperature Tester. (Refer to
TM 55-4920-401-13&P Heat Detection System
Check.)
9.
Connect multimeter (11) to connector pins D and
E. Set multimeter range switch to RX100.
10.
Connect multimeter (12) to connector pins A and
C. Set multimeter range switch to RX100.
11.
Set Exhaust Gas Temperature Tester (13)
controls for 140ºF and set power switch to ON.
12.
Check multimeter (11) when tester (13) stabilizes
at a temperature between 135º and 145ºF.
Multimeter (11) reading shall change from
continuity to infinity. If it does not change, discard
battery cable.
NOTE
The thermistor must be heat soaked
and stabilized at 140ºF prior to taking
the multimeter reading.
13.
Check multimeter (12) when tester (13) stabilizes
at a temperature of 140ºF. Multimeter (12) shall
indicate between 200 and 300 ohms. If it does
not, discard battery cable.
14.
Set Exhaust Gas Temperature Tester (13)
controls for 115ºF.
15.
Check multimeter (12) when tester (13) stabilizes
at a temperature of 110º to 120ºF. Multimeter
(12) reading shall change from infinity to
continuity. If it does not, discard battery cable.
9-74
