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TM 5-4320-306-24
Section V. TROUBLESHOOTING
2-10. TROUBLESHOOTING
a.
Table 2-2 contains troubleshooting information for locating and correcting most of the operating troubles which
are the responsibility of organizational maintenance. Each malfunction for an individual component, unit, or system is
followed by a list of tests or inspections which will help you to determine probable causes and corrective actions to take.
Perform the tests/inspections and corrective actions in the order listed
b.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or cannot be corrected by listed corrective actions, notify your supervisor
c.
Only those functions within the scope of organizational maintenance are listed. For troubleshooting procedures
within the scope of operator/crew maintenance, refer to TM 5-4320-306-10.
2-11. SYMPTOM INDEX
Refer to the Symptom Index below. Locate the malfunction which is the same, or most nearly the same, as the trouble
you are having with the centrifugal pump unit. The Symptom Index lists the first page of troubleshooting information for
that malfunction. Follow the steps one by one, and perform the corrective actions listed
Malfunction
Number
Description
Page
1
Engine fails to crank or cranks very slowly
2-24
2
Engine cranks but fails to start
2-25
3
Engine runs unsteadily and power output is low
2-26
4
Engine starts but pump suction gage or pump discharge gage does not
function
2-27
5
Dense exhaust smoke after warmup
2-27
6
Engine overheats
2-27
7
Low engine oil pressure
2-28
8
Charging indicator lamp (ALTERNATOR) lights when engine is running
2-28
9
Pump makes excessive noise
2-28
10
Pump output low
2-29
2-23
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