TM 9-2320-260-20
1-18. CONTROL SYSTEMS OPERATION (Contd)
b. Cold Starting System Operation.
The cold start system is an electrical and pneumatic system which allows engine starting in cold
weather. Major components of the cold starting system are:
A
COLD START INDICATING LAMP Indicates cold start switch being placed in "ON" position.
B
FUEL PRIMER PUMP - Increases fuel pressure to cold starting system and purges air from fuel
system.
C
COLD START SWITCH - Controls 12-volt power to activate or deactivate cold starting system.
D
COLD START PRESSURE GAGE -
Indicates pressure buildup when
pumping cold start pump
E
COLD START GLOW PLUG - Ignites fuel injected into air intake manifold by cold start nozzle.
F
COLD START RELAY Maintains glow plug voltage by
reducing the
resistance in
series with
glow plug during cranking.
G
COLD START RESISTOR Regulates 6-volt power to cold start indicator and glow plug.
H
COLD START NOZZLE Injects fuel under pressure into air intake manifold.
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