LOCOMOTIVE AIR COMPRESSOR QUIZ

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AIR COMPRESSOR SAFETY VALVE WHEN TESTED AND ADJUSTED TO BLOW AT 55 PSI

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR OIL PRESSURE GAGE WHEN TESTED IS REMOVED CALIBRATED WITH A DEADWEIGHT TESTER

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR GOVERNOR ASSEMBLY IN CLEANING INSPECTION AND REPAIR USE P-D-680 DRY CLEANING SOLVENT AND COMPRESSED AIR TO CLEAN PARTS AND BODY

5 points

TRUE

FALSE

Clear selection

APPLY OIL O CUT-IN VALVE, CUTOUT VALVE AND TAIL VALVES WITH THE CLEANING INSPECTION AND REPAIR OF AIR COMPRESSOR

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR GOVERNOR ASSEMBLY REMOVAL CONSIST OF REMOVE AIR LINE FITTINGS AND DISCONNECTING THE LEADS THEN LOCK WASHERS AND CAPSCREWS WITH MOUNT BRACKET FOLLOWED BY REMOVING THE ADAPTER AND AND ELBOW FROM THE GOVERNOR

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR GOVERNOR DISASSEMBLY REMOVE VALVE ASSEMBLY REMOVE THE EXHAUST NUT SEAL FIELD YOKE AND COIL. REMOVING THE VALVE PLUNGER ASSEMBLY AND SPRING FROM VALVE BODY AND DISASSEMBLING PLUNGER ASSEMBLY

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR GOVERNOR CLEANING INSPECTION AND REPAIR CHECK THE SPRING OF THE VALVE PLUNGER BODY HAS NOT RUSTED OR DISTORTED AND TAKEN PERMANENT SET IF SO REPLACE

5 points

TRUE

FALSE

Clear selection

CLEANING INSPECTION AND REPAIR WITH AIR COMPRESSOR GOVERNOR USE A MULTIMETER AND MEASURE RESISTANCE OF COIL IF RESISTANCE IS NOT 8O OHMS PLUS OR MINUS 5% REPLACE COIL

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR GOVERNOR ASSEMBLY ASSEMBLE PLUNGER ASSEMBLY IN VALVE INSTALL SPRING WITHIN THE VALVE BODY POSITION FIELD YOKE AND COIL ON VALVE BODY WITH SEAL AND NUT AND ON GASKET TO BRACKET

5 points

TRUE

FALSE

Clear selection

AIR PRESSURE CONTROL SWITCHES TEST WITH A MULTIMETER TO SWITCH LEADS AND APPLY A REGULATED AIR SOURCE TO SWITCH TRIPS AT A VARIED RANGE OF PRESSURE FROM 5 TO 75 PSI

5 points

TRUE

FALSE

Clear selection

IN THE REMOVAL OF AIR COMPRESSOR DRAIN OIL CRANKCASE DISCONNECT UNLOADER AIR LINE FITTING WITH FLEX PIPE WITH BOLTS AND WASHERS

5 points

TRUE

FALSE

Clear selection

ALWAYS USE A SUITABLE LIFTING DEVICE AND SLOWLY REMOVE AIR COMPRESSOR SLOWLY

5 points

True

False

Clear selection

AN AIR COMPRESSOR ORIFICE TEST CHECK ALL STEPS IN PROCEDURE

5 points

12. Connect an orifice holder with 1/4-inch (6. 4 mm) orifice in the plugged hole at the bottom of No. 1 air reservoir. Use orifice with square edges bored through plate 1/16 inch (1.6 mm) thick.

13. Connect a calibrated test gage in reservoir No. 2. Disconnect electrical leads to automatic in high-voltage cabinet. Check that all air-operated devices on locomotive are shut off. drain valves at timer

14. Start engine No. 1 and idle until engine and compressor are warm. Place throttle lever in position No. 3. Operate engine in throttle position No. 3 until air pressure in reservoir No. 2 is stabilized.

15. Record reading from test gage in reservoir No. 2.

16. Place throttle lever in idle position and let engines idle for a minimum of 2 minutes. Shut down engine. Drain air reservoir No. 2 to 50 psi (345 kPa).

17. Start No. 2 engine and idle until engine and compressor are warm. Repeat steps 14 thru 1 compressor No. 2.6 and test

18. Compare readings with table 3-4. Readings must be above condemning limits after compensating for altitudes Drain air from reservoirs. Remove orifice and test gage. Install plugs..

PERFORM A STATION LOCOMOTIVE AIRBRAKE TEST AFTER MAINTENANCE OF AIR COMPRESSOR

5 points

TRUE

FALSE

Clear selection

AIR COMPRESSOR CLEANING INSPECTION AND REPAIR DRY CLEAN SOLVENT AND REMOVE DIRT, GREASE, AND OIL FROM CYLINDER HEADS, CYLINDERS, SIDE COVERS, DISCHARGE ELBOWS, PISTON PINS AND DISCHARGE FLANGE DRY WITH COMPRESSED AIR THEN MAGNAFLUX CHECK FOR CHECKS REPLACE DAMAGED PARTS

WHEN CLEAN INSPECT AND REPAIRING CYLINDERS USE DRY CLEANING SOLVENT AND AIR USE A HONING DRILL ON CYLINDER WALLS CHECK CYLINDER BORE AND FLANGE FACE AND MEASURE CYLINDER TO PISTON CYLINDER

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