TM 9-2320-211-34-1
ELECTRICAL SYSTEM
q
ENGINE COOLANT
FUEL BURNING
ELECTRIC BRAKES
HEATER
HEATER
-- Overheat temperature
-- Overheat switch
----
Voltage
regulator
control
-- Fuel valve assembly
-- Lead 53A
-- Fuel valve assembly
-- Heater resistor
-- Lead 53D
--- Rheostat
-- Blower assembly motor
-- Motor resistor
-- Rear harness
-- Heater control switch
-- Heater blower motor
-- Circuit breaker
-- Overheat thermostat
switch
-- Lead from circuit
breaker to heater
-- Fuel control valve
control switch
-- Circuit breaker
-- Harness from heater
control box to heater
-- Lead from circuit
HEATER VOLTAGE REGULATOR
breaker to heater
control switch
-- Heater control switch
Harness from heater
control box to heater
Troubleshooting Roadmap, Electrical System
5-3