DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
Section I. REPAIR PARTS, SPECIAL TOOLS, AND EQUIPMENT
Repair parts and equipment are listed and
2-1. Special Tools and Equipment
illustrated in the repair parts and special tools list
covering direct support and general support
No special tools or equipment is required for the
maintenance for this centrifugal pump. Refer to TM
repair and maintenance of the pumping assembly.
54320-234-34P when you need replacement parts
2-2. Maintenance Repair Parts
Section II. TROUBLESHOOTING
the scope of direct and general support maintenance are
listed. For troubleshooting procedures which are within
the scope of operator/crew and organizational
This section contains troubleshooting
maintenance, you should refer to TM 5-4320-234-12.
information for locating and correcting most of the
operating troubles which may develop in the pumping
Direct Support and
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
Refer to table 2-1 for troubleshooting which is
causes and corrective actions to take. You should
allocated to direct support and general support
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 you experience a malfunction which is not
Before you use the troubleshooting
listed or is not remedied by listed corrective actions,
table, be sure you have performed all
notify your supervisor.
applicable operating checks.
c. Only those functions which are solely within
Table 2-1. Troubleshooting
TEST OR INSPECTION
1. LOW OR UNEVEN COMPRESSION
Step 1. Check for damaged cylinder head gasket or loose cylinder head by listening for hissing noise on compression stroke.
Replace head gasket or tighten cylinder head bolts to proper torque.
(1) Remove the cylinder head and gasket as shown in figure 2-1. When removing the cylinder head screws, loosen each a
small increment until all are started. This will help prevent cylinder head distortion.