ARMY TM 9-6115-673-13&P
AIR FORCE TO 35C2-3-512-1
Section II. TROUBLESHOOTING
Subject
Para
Page
Direct Support Troubleshooting Procedures................................................................ 5.4
Purpose of Logic Tree Table........................................................................................ 5.4.1
Symptom Index ............................................................................................................ 5.4.2
5.4
DIRECT SUPPORT TROUBLESHOOTING PROCEDURES.
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 the Operator and Unit
level PMCS procedures have been performed.
NOTE
Ensure operator and Unit level troubleshooting has been performed prior
to performing DS level troubleshooting.
NOTE
FO-4 (MEP-501A) as
troubleshooting aids. Refer to
Electrical Schematic
Figure FO-5 (Mechron 120 VAC) or Figure FO-6 (Mechron 28 VDC) as
troubleshooting aids.
Symptom Index.
Troubleshooting
Procedure
Symptom
Page No.
Diesel Engine Will Not Start (Manual Starting) ............................................................. 5-4
Diesel Engine Hard To Start ......................................................................................... 5-5
Diesel Engine Starts But Fails to Keep Running .......................................................... 5-6
Diesel Engine Runs Rough........................................................................................... 5-7
Unexpected Reverse Rotation at Startup ..................................................................... 5-8
Diesel Engine Races Exceeding Governed Speed ...................................................... 5-9
Diesel Engine Runs Unevenly (Surges)........................................................................ 5-10
Diesel Engine Seizes During Operation........................................................................ 5-11
Diesel Engine Exhausts Black Smoke .......................................................................... 5-12
Diesel Engine Exhausts Blue-White Smoke ................................................................. 5-13
Recoil Start Rope Hard to Pull ...................................................................................... 5-14
Voltage Output Drops.................................................................................................... 5-15
Table Not Used ............................................................................................................. 5-16