Page 29

AUTOMATIC ALARMS AND SAFEGUARDS

ENGINE OVERSPEED SHUTDOWN (Figure 6)

In the event that the engine overspeeds normal high speed, the engine is shut down automatically. After an overspeed shutdown of the engine, move the EC switch to START. Reset the overspeed governor located on the left side of the engine under the engine control governor. Proceed to start the engine as described under STARTING ENGINE. If it overspeeds again, do not restart the engine.

NOTE : In Freight Service, if troubles occur on two or more units at the same time which causes the alarm bell to ring, turn the EC switch on all affected units to START position before attempting to restart any unit. With the throttle handle on the lead unit beyond IDLE position, it is impossible to start any unit while the alarm bell is ringing.

(During freezing weather, protect the engine cooling system according to railroad instructions.)

Figure 6. -- Engine overspeed governor and reset

ON TO PAGE 30
BACK TO PAGE 28
BACK TO TABLE of CONTENTS