TM 9-2815-250-24&P
CHAPTER 3
DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
Section I. DIRECT SUPPORT AND GENERAL SUPPORT TROUBLESHOOTING
Paragraph
Page
Number
Paragraph Title
Number
3-1
General.................................................................................................................................. 3-1
3-2
Quick Guide to Troubleshooting............................................................................................... 3-2
3-3
Troubleshooting Chart............................................................................................................. 3-3
3-1.
GENERAL.
a.
This section provides information for identifying and correcting malfunctions that may develop while operating or
maintaining the Diesel Engine Assembly, Hatz 2 G 40.
b.
The Quick Guide to Troubleshooting (para 3-2) lists common malfunctions of the diesel engine or its components
and refers you to the appropriate paragraph in the Troubleshooting Chart (para 3-3). You should perform the
tests/inspections and corrective actions in the order listed in the chart.
c.
If you are unsure of the location of an item mentioned in troubleshooting, refer to paragraph 1-12 or to the
maintenance task where the item is replaced.
d.
Before performing troubleshooting, read and follow all safety instructions listed in the warning summary at the
beginning of this manual.
e.
This section cannot list all malfunctions that may occur, or all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by the corrective action listed, notify your supervisor.
f.
When troubleshooting a malfunction:
In the Quick Guide to Troubleshooting, locate the symptom or symptoms that best describe the malfunction.
Turn to the subparagraph in the Troubleshooting Chart where the troubleshooting procedures for the
malfunction in question are described.
Perform each step in the order listed until the malfunction is corrected. DO NOT perform any maintenance task
unless the troubleshooting procedure tells you to do so.
g.
When troubleshooting any electrical system or component, exercise extreme care in order to prevent electric
shock.
WARNING
·
To prevent injury due to electric shock throughout troubleshooting of the electrical system or
electrical components, be certain MASTER switch is turned off between every step unless
otherwise directed.
·
To prevent injury due to electric shock, remove all jewelry and metal objects when working on
the electrical system.
h.
The multimeter is used throughout troubleshooting of the electrical system. When using the multimeter, make
sure it is used with a probe kit.
i.
When performing a continuity check, connect the meter probes to both terminals of the circuit you are testing.
Read the meter and interpret the results. If the needle swings to near 0 on the top scale, the circuit has
continuity. If the needle does not move, the circuit is open. If the needle jumps or flickers, there is a loose
connection.
3-1
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