TM-9-2320-273-20
TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE
NOVEMBER 1980
TM-9-2320-273-20 - Page 80 of 1500
TM 9-2320-273-20
2-33. COOLANT TEMPERATURE MONITORING SYSTEM.
1.
2.
3.
4.
5.
6.
WATER TEMPERATURE GAGE. Shows coolant temperature actuated by electrical
signal from water temperature sending unit.
ENGINE RUN SWITCH. Energizes 12-volt electrical system, including temperature
gage and temperature indicator light circuits.
ENGINE COOLANT TEMPERATURE WARNING LIGHT. Activated by 12-volt
power from water temperature switch when engine temperature exceeds 225°F
(107°C).
ClRCUIT BREAKER (CB-6). Protects electrical components and wiring of coolant
system by opening circuit when load exceeds 20 amps. Automatically recycles until
overload is removed.
WATER TEMPERATURE SWITCH. Normally open, closes to activate indicator light
when coolant temperature exceeds 225°F (107°C).
WATER TEMPERATURE SENDING UNIT. Provides electrical signal to temperature
gage.
2-32
Back to Top
