2-36. OPERATION AT HIGH ALTITUDE
The locomotive is designed to operate efficiently to a height of about 8,000 feet (2 438.4 meters). However, because air
pressure decreases with an increase in altitude, maximum available power and engine performance decreases with
increased altitudes. Keep engine air filters clean for the least resistance to flow of intake air. Keep radiator and oil cooler
clean for maximum dissipation of power train heat.
2-37. RUNNING THROUGH WATER
Road bed shall be inspected prior to crossing
submerged areas. Equipment damage and injury or
death to personnel could occur if road bed is
Water deeper than 3 inches (76 mm) above top of
rail will cause damage to traction motors.
Never run through water that is deep enough to contact the traction motor frames. When passing through water, proceed
at a speed of between 2 to 3 mph (3 to 5 km/h).
2-38. ISOLATING A UNIT
An isolated unit is one which delivers no power
to the traction motors, but operates at idling
speed to charge the batteries, keep the engine
warm, and pump air. Operation of the units in
multiple may continue with an isolated unit,
since control circuits are not affected.
To isolate a unit, turn isolation switch to IDLE
Throttle control must be in IDLE
position prior to restoring service.
To restore to service, turn isolation switch to RUN position.