TM 10-4320-345-13
Section III. UNIT TROUBLESHOOTING PROCEDURES
4-7. INTRODUCTION.
This section provides the troubleshooting information for the Tactical Water Distribution System at the Unit
Maintenance level. It consists of the symptom index, listing the most common malfunction symptoms, and the
troubleshooting table, Table 4-1. This table repeats the malfunctions, and provides the procedural steps and
corrective actions necessary to return the system to operational readiness.
4-8. TROUBLESHOOTING.
a.
The troubleshooting table lists the common malfunctions which you may find during operation of the
water system. You should perform the tests, inspections and corrective actions in the order they
appear in the table.
b.
This table cannot list all the malfunctions that may occur, all the tests or inspections needed to find the
fault, or all the corrective actions needed to correct the fault. If the equipment malfunction is not listed
or actions listed do not correct the fault, notify your supervisor.
c.
Refer to the applicable TM for troubleshooting malfunctions on the 350 gpm pumps.
d.
Refer to the applicable TM for troubleshooting malfunctions on the 125 gpm pump.
e.
Refer to the applicable TM for troubleshooting malfunctions on the hypochlorination units.
f.
Refer to the applicable TM for troubleshooting malfunctions on the 20K collapsible fabric tanks.
4-9. MALFUNCTION INDEX.
Malfunction
Page
1.
Discharge or Suction Hose Leaks............................................................
4-5
2.
Gate Valve Assembly (2-Inch) Leaks.......................................................
4-6
3.
Gate Valve (2-Inch) Stuck or Jammed .....................................................
4-7
4.
Distribution Nozzle (1-1/2 inch) Leaks......................................................
4-8
5.
Distribution Nozzle (1-1/2 inch) Stuck Open or Closed.............................
4-9
6.
Water Meter Assembly Leaks..................................................................
4-10
7.
Water Meter Assembly Will Not Operate .................................................
4-11
8.
Elbow Valve Leaks ..................................................................................
4-12
9.
Elbow Valve Stuck or Jammed ................................................................
4-13
10.
Butterfly Valve Leaks...............................................................................
4-14
11.
Butterfly Valve Stuck Open or Closed......................................................
4-15
12.
Pressure Regulating Valve Leaks............................................................
4-16
13.
Pressure Regulating Valve Not Reducing Pressure..................................
4-17
14.
Gate Valve Assembly (4-inch) Leaks .......................................................
4-18
15.
Gate Valve Assembly (4-inch) Stuck Open or Closed..............................
4-19
4-4
