TM 10-4320-307-24
Chapter 4
GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
INTRODUCTION
This chapter contains the following frequently used maintenance information:
a.
Troubleshooting
b.
Maintenance procedures
The symptom index on page 4-1 is a guide to the troubleshooting information. There is also an index to the maintenance
procedures on page 4-3.
Section
Title
Page
Section I
Troubleshooting ...............................................................................................................
4-1
Section II
Maintenance Procedures..................................................................................................
4-3
Section I. TROUBLESHOOTING
4-1
TROUBLESHOOTING .
a.
Table 4-1 contains troubleshooting information for locating and correcting most of the operating troubles which are
the responsibility of general 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 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 or 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 general support maintenance are listed. For troubleshooting procedures
within the scope of operator/crew maintenance, refer to TM 10-4320-307-10. For troubleshooting procedures within
the scope of unit maintenance, refer to Table 2-2. For troubleshooting procedures within the scope of direct
support maintenance, refer to Table 3-1.
4-2
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 listed.
Malfunction
Number
Description
Page
1
2
3
4
Engine is hard to start
Engine consumes excessive lube oil (may produce blue smoke)
Engine produces excessive crankcase pressure
Engine has low oil pressure
4-2
4-2
4-2
4-2
4-1
