2-3. OPERATOR CONTROLS AND INDICATORS (cont)
Control or Indicator
Circuit Breaker (1)
Circuit Breaker (2)
Controls most of the low voltage circuits. Must
be ON to operate the locomotive.
Circuit Breaker (3)
Ground circuit breaker for the engine
temperature and low oil pressure switches.
Circuit Breaker (4)
Controls the following circuits:
and engine room lights and receptacle.
Circuit Breaker (5)
Ground circuit breaker for the following: step,
number, and engine room lights and receptacle.
Circuit Breaker (6)
Circuit Breaker (7)
Main circuit breaker for the headlight circuits.
Circuit Breaker (8)
Controls the electrical equipment cabinet
Used to test the fuses in the electrical
equipment cabinet. When a fuse is placed across
the tester, continuity is indicated by the
lighting of the GROUND indicating light and
the sounding of the warning bell.
Traction Motor Cutout Switch
Used to take the traction motors on one truck out
of service in the event of a motor failure.