TM 10-4610-237-12
Section V. UNIT MAINTENANCE PROCEDURES
4.10
GENERAL.
This section contains instructions for performing unit level maintenance on the 20K Water Storage and Distribution
System. Refer to the applicable technical manuals for unit maintenance on the following equipment:
Equipment
Technical Manual
Hypochlorination Unit
Applicable TM
125 GPM Pump Assembly
Applicable TM
20K Collapsible Fabric Tank
Applicable TM
Triple Container
Applicable TM
Water Tank Chest
Applicable TM
4.11
PERSONAL SAFETY.
To ensure safety of personnel, proper care should be used when handling assemblies and parts. Many assemblies are
heavy. The assistance of another person, lifting device, or other support equipment may be required to move or position
heavy items.
Personnel must remove all items of jewelry (rings, bracelets, watches, necklaces, etc.) and loose clothing before working
on the equipment. Jewelry and loose clothing can get caught in moving equipment and result in injury to personnel.
Jewelry can cause electrical shorts or severe injury when working around electrical equipment.
When performing maintenance on the water system, keep in mind that the purpose of the equipment is to store and
distribute potable water. Cleaning fluids, lubricants, preservatives, paint or other chemicals must not be allowed to
contaminate the water system. Clean water system components with only approved materials.
Operate the water system after performing maintenance to ensure repairs have been performed correctly and system
can be returned to service.
4.12
PROPER EQUIPMENT.
Obtain proper equipment before beginning maintenance. This includes hand tools and/or special tools, receptacles for
storing small parts, and expendable materials required by the maintenance task.
4.13
HOSE NOZZLE KIT MAINTENANCE.
The hose nozzle kit consists of the components listed below. Refer to the following paragraphs for applicable
maintenance procedures.
Procedure
Para.
Distribution Nozzle Assembly (I 1/2-Inch) Repair .............................................................................................. 4.14
Discharge Hose Assembly Repair ................................................. ................................................................... 4.15
Gate Valve Assembly (2-Inch) Repair ......................................... ..................................................................... 4.16
Tee Assembly (9117-Y1) Repair ........................................................................................................................ 4.17
Nozzle Stand Assembly Repair .............................................. ........................................................................... 4.18
4-17
