Section V. TROUBLESHOOTING - TM-9-6115-673-13-P0124

TM-9-6115-673-13-P 2 Kw Military Tactical Generators Sets 120 VAC 60 Hz: MEP-531A (Dewey) Mechron 28 VDC: MEP-501A (Dewey) Manual
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ARMY TM 9-6115-673-13&P

AIR FORCE TO 35C2-3-512-1

Section V. TROUBLESHOOTING

Subject

Para.

Page

Unit Troubleshooting Procedures ........................................................ 4.13

4-26

Purpose of Logic Tree Table................................................................ 4.13.1

4-26

Symptom Index .................................................................................... 4.13.2

4-26

4.13.

UNIT TROUBLESHOOTING PROCEDURES.

4.13.1. Purpose of Logic Tree Table.

This section contains troubleshooting information for locating and correcting operating troubles which may

develop in the generator set. Each malfunction listed for an individual component, unit, or system is

followed by a go-no-go troubleshooting procedure that may help you determine what caused the trouble.

Corrective action is provided to help you remedy the problem. If a malfunction is not listed or cannot be

corrected by listed corrective actions, notify your supervisor.

NOTE

Before you use these procedures, be sure that all operator and Unit

level PMCS procedures have been performed.

NOTE

Ensure operator level troubleshooting has been performed prior to

performing unit level troubleshooting.

NOTE

Refer to the Electrical Schematic Figure FO-1 (MEP-531A), Figure

FO-2 (MEP-501A), Figure FO-5 (Mechron 120 VAC), or Figure FO-6

(Mechron 28 VDC) and Wiring Diagram Figure FO-3 (MEP-531A) or

Figure FO-4 (MEP-501A) as troubleshooting aids.

4.13.2. Symptom Index.

Troubleshooting

Procedure

Symptom

Page No.

Diesel Engine Will Not Start (Manual Starting) .................................................

4-28

Diesel Engine Will Not Start (Electric Starting) .................................................

4-29

Diesel Engine Hard To Start .............................................................................

4-31

Diesel Engine Starts But Fails to Keep Running...............................................

4-32

Diesel Engine Runs Erratic ...............................................................................

4-33

Unexpected Reverse Rotation at Startup .........................................................

4-35

Diesel Engine Stops During Operation .............................................................

4-36

Diesel Engine Exhausts Black Smoke ..............................................................

4-38

Diesel Engine Exhausts Blue-White Smoke .....................................................

4-39

4-26

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