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4 Cards in this Set
- Front
- Back
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What are the names of the two engine protector buttons and how they are identified? |
Positive Crank case button - Excessive pressure in the crank case of the engine Low water button - water in the cooling system is low If either button trips the engine oil pressure will not register at the governor resulting in the low oil shut down device operating to shut down the engine. The diesel engine will not run unless both buttons are in and latched. |
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What are the four possible causes of positive crankcase button operation? |
- excessively high oil level in oil pan - compression leak into oil pan due to defective rings or a cracked piston - crank case explosion due to ignition of lube oil vapor - blocked lube oil separator |
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What are the alarm system indications given on each class of locomotive when the engine protector operates? |
N Class - Blue auxiliary generator/alternator failure light - yellow engine protector light will illuminate on affected loco - Audible fault alarm will sound on all locomotives in multiunit - yellow fault brake warning light on drivers panel will illuminate on all units in multi unit Y Class - Audible fault alarm will sound on all Locos in multi unit |
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What are the drivers duties for positive crankcase button operation? |
The driver must: - NOT restart the engine if the positive crankcase button has tripped - leave the confined space of the engine room immediately to avoid breathing fumes - advise maintenance staff - list irregularities fault book - Submit incident report |
