TM 9-2320-392-10-1
M1083A1 SERIES THEORY OF OPERATION - Continued 0003 00
COOLING SYSTEM - Continued (Vehicle S/N 100,001 to 199,999)
9.
Positioning the engine fan off switch to the on position keeps the engine fan from
engaging while fording water more than 30 in. (76 cm) deep.
10. Cooling capacity for the transmission is increased by the use of a transmission
auxiliary oil cooler. An electric fan provides air flow through the oil cooler core. The
WATER TEMP gage on the instrument panel assembly allows you to monitor coolant
temperature. In addition, the COOLANT TEMP indicator on the lighted indicator
display illuminates when the coolant temperature exceeds 230 F
(110 C). When the personnel heater is in use, warm coolant is used to heat the air
in the cab before being returned to the radiator. Otherwise, coolant is returned
directly to the radiator to be cooled.
0003 00-16
