Specifications include, but are not limited to: 2.0 TANK AND FITTINGS 2.1 Capacity: 2,200 U.S. gallons. Tank shape has a modified elliptical cross section with cross section established for specified capacity. 2.2 Tank Shell: Constructed of 10 gauge tank steel and 10 gauge flanged heads. Heads to be convex, and all seams to be welded by automatic or semiautomatic process. 2.3 Surge Plate(s) : Tank to be supported with full section surge plate(s), reinforced and flanged,· constructed of a minimum of 10 gauge steel. To be spaced to provide adequate tank strength and to minimize surging of water. Openings shall be provided in the surge plate(s) to allow a free flow of water to the outlet pipe and to allow complete drainage of the tank. 2.4 Manhole: 20" minimum inside diameter low profile manhole, located on top of tank for emergency or maintenance use, quick release clamped band cover, and fitted with gasket. 2.5 Overflow: 4" diameter overflow, extending up into the manhole collar and draining through the bottom of the tank in such a location as to clear all chassis members. 2.6 Filling Intake: Minimum 2 1/2" pipe, entering the tank through the rear tank head, and extending upward into an anti-siphon dome. The fill line arrangement shall permit the filling hose to remain connected at all times. 2.7 Filling Strainer: Brass strainer, mounted horizontal in fill line at rear head of tank for self-cleaning in normal operation and easy removal when necessary. 2.8 Water Level Gauge: A full level indicator light is provided at rear of unit in easy view of operator when filling. 2.9 Tank Sump and Drain: 5" sump with 3" N.P.T. non-ferrous, noncorroding plug. 2.10 To include ladder mounted to tanks to allow easy access to top of tank area. 2.11 To have provision for mounting of strobe light on top of tank at rear. 3.0 PUMP 3.1 Type: Centrifugal, single. stage, with vertically split case and cast iron impeller. To have 5" suction and 4" discharge, with heavy duty ball bearings to support extra-large steel shaft. 3.2 Capacity: Shall have ample capacity for handling, one, two, three, or four flushing nozzles. Pump rated at 750 G.P.M. or to have sufficient capacity to operate up to four (4) nozzles at 175 G.P.M. and 50 P.S.I. each nozzle. 4.0 DIESEL POWER UNIT 4.1 Type: Industrial diesel engine, water cooled, with no less than 4 cylinders, and 275 cubic inch displacement. 4.2 Location: To be located at the rear of the tank. 4.3 Power: Not less than 80 gross BHP at 2500 engine RPM. 4.4 Electrical: Automotive type ignition with 12 volt electric starter, alternator and separate battery. 4.5 Fuel Tank: Minimum capacity 15 gallons, shall be located on the side of the unit away from the engine or fuel system will be plumbed into chassis fuel tank. 4.6 Cab Controls: Ignition, throttle, ammeter, oil pressure and water temperature gauges shall be located in a panel in the cab. 4.7 Accessories: Engine to be equipped with dry air cleaner, fuel pump, muffler, and variable speed governor. 4.8 Mounting: The water pump shall be directly mounted to the engine flywheel housing. The engine, radiator and water pump assembly shall be mounted on a subframe which is bolted to the truck frame. 4.9 Serviceability: The oil filter, fuel filter and oil dip stick shall be easily accessible for service.
