TM 10-4610-237-12Section V. UNIT MAINTENANCE PROCEDURES4.10GENERAL.This section contains instructions for performing unit level maintenance on the 20K Water Storage and DistributionSystem. Refer to the applicable technical manuals for unit maintenance on the following equipment:EquipmentTechnical ManualHypochlorination UnitApplicable TM125 GPM Pump AssemblyApplicable TM20K Collapsible Fabric TankApplicable TMTriple ContainerApplicable TMWater Tank ChestApplicable TM4.11PERSONALSAFETY.To ensure safety of personnel, proper care should be used when handling assemblies and parts. Many assemblies areheavy. The assistance of another person, lifting device, or other support equipment may be required to move or positionheavy items.Personnel must remove all items of jewelry (rings, bracelets, watches, necklaces, etc.) and loose clothing before workingon 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 anddistribute potable water. Cleaning fluids, lubricants, preservatives, paint or other chemicals must not be allowed tocontaminate 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 systemcan be returned to service.4.12PROPEREQUIPMENT.Obtain proper equipment before beginning maintenance. This includes hand tools and/or special tools, receptacles forstoring small parts, and expendable materials required by the maintenance task.4.13HOSENOZZLEKITMAINTENANCE.The hose nozzle kit consists of the components listed below. Refer to the following paragraphs for applicablemaintenance procedures.ProcedurePara.Distribution Nozzle Assembly (I 1/2-Inch) Repair .............................................................................................. 4.14Discharge Hose Assembly Repair ................................................. ................................................................... 4.15Gate Valve Assembly (2-Inch) Repair ......................................... ..................................................................... 4.16Tee Assembly (9117-Y1) Repair ........................................................................................................................ 4.17Nozzle Stand Assembly Repair .............................................. ........................................................................... 4.184-17
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