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TM 5-4320-304-14
TM 08922A-14/1
CHAPTER 5
INTERMEDIATE DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. TROUBLESHOOTING
5-1. TROUBLESHOOTING
a. Table 5-1 contains troubleshooting information for locating and correcting most of the operating
troubles which are the responsibility of direct support maintenance.
Each malfunction for an individual
component, unit, or system is followed by a list of tests or inspections which will help you to deter-
mine 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 cor-
rective actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify
your supervisor.
c. Only those functions within the scope of direct support maintenance are listed. For trouble-
shooting procedures within the scope of operator/crew maintenance, refer to table 3-1. For trouble-
shooting procedures within the scope of organizational maintenance, refer to table 4-2.
5-2. 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 Iisted.
Malfunction
Number
I
Description
Page
1
I
Engine cranks but fails to start
I
5-2
2
Engine starts but runs unevenly, stalls, or surges
I
5-2
3
Engine stops running or produces black, white, or grey
5-2
smoke
4
Engine consumes excessive lube oil
5-2
5-1
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