TM 55-2210-223-12
TO 45A2-2-14-41
2-3. OPERATOR CONTROLS AND INDICATORS (cont)
Key
Control or Indicator
Function/Use
(3)
LOW OIL PRES Indicator
When lit, along with the warning bell sounding,
Light
indicates that oil pressure in diesel engine is
below 20 psi (138 kPa).
(4)
ENGINE OIL Gage
Indicates the lube oil pressure in the diesel
engine.
(5)
FUEL PUMP Indicator Light
When lit, indicates fuel pressure control (FPC)
relay is deenergized.
(6)
FUEL PUMP RESET Pushbutton
Must be pushed to energize fuel pressure control
(FPC) relay before attempting to start diesel
engine.
(7)
JACKET WATER Gage
Indicates the temperature of the water coolant
in the diesel engine.
(8)
START Pushbutton
When pushed, connects the generator to the
batteries to start the diesel engine.
(9)
FUEL Pressure Gage
Indicates the pressure of the fuel oil in the
diesel engine.
(10)
ISOLATION SWITCH
Controls whether the locomotive is in idle or
running mode.
(11)
REMOTE HDL SWITCH
Controls the headlights of the locomotive when
operating as a single unit or when arranged in
multiple-unit hookup position.
(12)
GROUND RESET Pushbutton
When pushed, releases the ground relay from its
lockup position.
(13)
GROUND Indicator Light
When lit, indicates a ground or a current
passing through frame or car body. Also will
light when testing fuses.
2-5
