TM 10-4320-315-241-11. Equipment Data.Model............................................................................................................................................................... 6 x 6 SP6Manufacturer .............................................................................................................. Reddy • Buffaloes Pump, Inc.Weight ......................................................................................................................................... 5,390 lb (2447 kg)Height ............................................................................................................................................. 72 in. (182.9 cm)Width ........................................................................................................................................... 90.0 in. (228.6 cm)Length ....................................................................................................................................... 187.5 in. (476.3 cm)Fuel tank capacity.......................................................................................................................... 42 gallons (159 l)Diesel Engine:Power .......................................................................................................................... 108 HP at 2400 RPM (80kW)Type .............................................................................................Six cylinder; four-stroke; air-cooled, turbochargedfor altitude compensation onlyBattery requirement ................................................................................................ 24 VDC (Two 12 VDC in series)Model ........................................................................................................................................................ F6L 912BPump:Type ......................................................................................................................... Self-priming, centrifugal, directcoupled to diesel engineOutput volume ......................................................................................................................... 600 gpm at 350 ft tdhDesigned working pressure ......................................................................................................... 150 psi (1034 kPa)Designed suction pressure ....................................................................... -30 in. of Hg to 150 psi (138 to 1034 kPa)Suction and discharge size .....................................................................................................................6 in (15 cm)Section III. TECHNICAL PRINCIPLES OF OPERATION1-12. Functional Description of Pumping assembly.The pumping assembly (Figure 1-2) is a trailer mounted 600gpm pumping assembly. It consists of a 4-stroke, 6 cylinder, air-cooled diesel engine and a direct coupled self-primingcentrifugal pump. A 42-gallon fuel tank is an integral part of the trailer assembly. Starting power of 24 volts Is suppliedby two 12-volt batteries connected in series.1-13. Principles of Operation.The operation of the centrifugal pump depends on centrifugal force to move waterthrough the pump and to maintain the desired pressure. After the pump body is primed and pumping begins, fluid istransferred through the pump. Fluid in the supply hose enters the suction elbow. From the suction elbow, the fluid entersthe pump housing and impeller. The impeller, rotating at high speed, throws the fluid outward from the center of theimpeller. This creates a partial vacuum at the center of the impeller, drawing additional fluid from the suction piping.The fluid thrown out of the impeller is forced out of the volute of the pump body and into the discharge elbow. As thissequence continues, fluid is transferred from the supply through the pump and discharge hose. By increasing ordecreasing the speed of impeller rotation, the pumping rate and discharge head are increased or decreased. Refer toTM 10-4320-315-10 for the functional description of controls and indicators.1-7/(1-8 blank)
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