TM 10-4320-303-132.9.5 OtherTWDSComponents.The following paragraphs will provide operating procedures for operatingthe remaining TWDS components under unusual environmental/weather conditions.2.9.5.1 OperationinExtremeHeat.Pressure-Reducing Valve Assembly. Cover unit with moistened burlap,tarpaulin, or suitable cover to shade it from sun.2.9.5.2 OperationinColdWeather.The TWDS is not intended for use at temperatures below 32° F (0°C).2.9.5.3 OperationinSaltWaterArea. Pressure-Reducing Valve Assembly.Notify organizationalmaintenance if rust or aluminum oxide formations are present.2.9.5.4 OperationinDustyorSandyConditions .Hypochlorination Units. Protect unit from sand or dust asmuch as possible. Be careful when mixing chlorine solution to prevent introduction of sand or grit in solution(para 2.5.5.4).2.9.5.5 OperationinHighWinds .10-Mile Hoseline Segment. Pack hoseline as soon as possible (para2.5.1).2.10 NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) DECONTAMINATION.Refer to FM 3-3, FM 3-4, FM 3-4-1, FM 3-5, FM 3-6, and FM 3-8 for decontamination procedures.2.11 FORDING.Reference applicable technical manual for fording procedures on the vehicle used to transport TWDScomponents. Reference the applicable technical manual for fording procedures for the 600 GPM pumpingassemblies and the model 1955-3 and model A-506131 hypochlorination units. Reference the applicabletechnical manual for fording procedures for the 125 GPM pumping assembly.2.12 EMERGENCYPROCEDURES.2.12.1 General.Performance of the entire TWDS depends on continuous operation of each majorcomponent. In most cases, when part of the equipment fails, the entire system must be shut down.Procedures for partial operation are limited. The only emergency procedures possible are listed below. In allother situations, the entire TWDS must be shut down until the problem is corrected.2.12.2 Failure of Boost Pumping Station.CAUTIONDo not attempt to operate other pumping stations when one unit fails.The bypass hose assembly is used only to keep downline pumps primed. Enoughpressure will not exist to operate downline pumps, even at a partial rate.a. Refer to the applicable technical manual and shut off engine.b. Open butterfly valve in bypass line.c. Close butterfly valves in suction and discharge lines to and from 600 gpm pumping assembly to shutoff water flow through malfunctioning pump.d. Notify operators at other pumping stations of equipment failure.e. Refer to the applicable technical manual and decrease lead pump operation so that discharge rate willbe enough to keep downline pumps primed.2-115
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