TM 5-4310-451-14
Section IV. UNIT TROUBLESHOOTING PROCEDURES
Paragraph
Page
Number
Paragraph Title
Number
4-13
General .................................................................................................
4-7
4-14
Explanation of Columns........................................................................
4-7
4-15
Troubleshooting Symptom Index ..........................................................
4-8
Table 4-2
Mechanical Troubleshooting.................................................................
4-9
Table 4-3
Electrical Troubleshooting ....................................................................
4-14
4-13.
GENERAL.
a.
This section provides information for identifying and correcting malfunctions which may develop when
operating or maintaining the air compressor unit. Electrical malfunctions are isolated to an individual circuit or component.
b.
The Troubleshooting Symptom Index in paragraph 4-15 lists common malfunctions which may occur and
refers you to the proper page in Table 4-2 or Table 4-3 for troubleshooting procedure.
c.
This section cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions.
If a malfunction is not listed, or is not corrected by listed corrective actions, notify your supervisor.
d.
Check the condition of the storage batteries prior to making any electrical checks (see TM 9- 6140-200-
14).
e.
When troubleshooting a malfunction:
(1)
Question the operator to obtain any information that might help determine the cause of the problem. Before
continuing, ensure that all applicable operator/crew troubleshooting was performed.
(2)
Locate the symptom(s) in paragraph 4-15 that best describes the malfunction. If appropriate symptom is not
listed, notify your supervisor.
(3)
Turn to the page in Table 4-2 or Table 4-3 where troubleshooting procedure for the malfunction in question
is described. Headings at the top of each page show how each troubleshooting procedure is organized: MALFUNCTION,
TEST OR INSPECTION (in step number order) and CORRECTIVE ACTION.
(4)
Perform each step in order listed until the malfunction is corrected. Do not perform any maintenance task
unless the troubleshooting procedure tells you to do so.
4-14.
EXPLANATIONS OF COLUMNS.
The columns in Table 4-2 and Table 4-3 are defined as follows:
(1)
MALFUNCTION. A visual or operational indication that something is wrong with the air compressor unit.
(2)
TEST OR INSPECTION. A procedure to isolate the problem in a component or system.
(3)
CORRECTIVE ACTION. A procedure to correct the problem.
4-7
