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AUTOMATIC ALARMS AND SAFEGUARDS

ENGINE AIR FILTER LIGHT
(See Figs. 2 and 7)

An Engine Air Filter light on the EC panel will come on when the engine paper air filters become plugged or dirty. In STANDBY mode of operation the engine speed will not change. In PASSENGER RUN the engine speed will remain normal but traction power will be removed. In FREIGHT RUN traction power will be removed and the engine speed will return to IDLE. Press the fuel pump reset button to reset the paper filter relay.

NOTE : Early stage of air filter cleanliness can be observed on the indicator mounted on the right side of the locomotive near the radiator. (See Fig. 7). When the engine is running at full speed and the red band inside the indicator becomes visible, the air filter is starting to get dirty. When the red band locks in place at the top, it is an indication that the air filter cleanliness has reached a condemning limit. Proceed as directed by railroad rules.

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Figure 7. -- Dirty air filter indicator

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