CHAPTER 5
DIRECT SUPPORT AND GENERAL
SUPPORT MAINTENANCE INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT
5-1. Tools and Equipment
personnel for the maintenance of the tank and
There are no direct support or general support
pump unit.
tools or repair parts issued with or authorized for
5-3. Direct Support and General Support
the tank and pump unit.
Maintenance Repair Parts
5-2. Special Tools and Equipment
Repair parts and equipment are listed in the
No special tools or equipment are required by
repair parts and special tools list covering direct
direct support or general support maintenance
support and general support maintenance for this
equipment (TM 5-4930-228-24P).
Section II. DIRECT SUPPORT AND GENERAL SUPPORT
MAINTENANCE TROUBLESHOOTING
5-4. General
b. This manual cannot list all malfunctions that
a. This section contains troubleshooting in
may occur, nor all tests, or inspections and
formation for locating and correcting troubles
corrective actions. If a malfunction is not listed or is
which may develop in the tank and pump unit.
not corrected by listed corrective actions, notify
Each malfunction for an individual component,
your supervisor.
unit, or system is followed by a list of tests or in-
5-5. Direct Support
and General Support
spections which will help you to determine probable
Maintenance Troubleshooting
causes of trouble and corrective actions to take.
You should perform the tests / inspections and
For direct support and general support main-
corrective actions in the order listed.
tenance troubleshooting, refer to table 5-1.
Table 5-1. Direct Support and General Support Maintenance Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. PUMP FAILS TO PUMP.
Step 1.
Inspect for broken or defective impeller.
Replace defective impeller.
Step 2. Inspect for cracked, broken, or defective housing.
Replace defective housing.
2. PUMP LEAKS.
Step 1.
Inspect for defective gasket.
Replace defective gasket.
Step 2. Inspect for broken or worn seal.
Replace defective seal.
3. P U M P N O I S Y.
Step 1.
Inspect for defective seal.
Replace defective seal.
Step 2. Inspect for loose and defective impeller.
Replace defective impeller.
5-1
