CHAPTER 2. DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

TM 5-4320-234-34

CHAPTER 2

DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

INSTRUCTIONS

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

information.

2-2. Maintenance Repair Parts

Section II. TROUBLESHOOTING

the scope of direct and general support maintenance are

2-3. General

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

2-4.

Direct Support and

General

Support

assembly.

Each malfunction for an individual

Maintenance Troubleshooting

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

maintenance levels.

the order listed.

b. This manual cannot list all malfunctions that

NOTE

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

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE

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.

2-1