prerequisite bidding requirements - R & R Fire Truck Repair, Inc.

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Demo #3709 Smeal <strong>Fire</strong> Apparatus Co. 75’ Heavy Duty AerialMIDSHIP MOUNTED FIRE PUMPThe fire pump shall be a Hale model Qmax 1500 midship mounted unit, rated at 1500 U.S. gallonsper minute.SINGLE STAGE FIRE PUMPThe pump shall be a single stage centrifugal class "A" rated fire pump, designed specifically for thefire service.The entire pump shall be assembled and tested at the pump manufacturer's factory.The pump shall be driven by a driveline from the truck transmission. The engine shall providesufficient horsepower and RPM to enable the pump to meet and exceed its rated performance.INDEPENDENT THIRD PARTY PUMP CERTIFICATIONThe fire pump shall be tested and certified, by a nationally recognized independent third partytesting company, to perform as listed below:100% of rated capacity at 150 pounds net pressure.70% of rated capacity at 200 pounds net pressure.50% of rated capacity at 250 pounds net pressure.100% of rated capacity at 165 pounds net pressure.The entire pump, both suction and discharge passages, shall be hydrostatically tested to apressure of 600 PSI. The pump shall be fully tested at the pump manufacturers factory to theperformance spots as outlined by the latest NFPA Pamphlet No. 1901. The pump shall be freefrom objectionable pulsation and vibration.PUMP BODYThe pump body and related parts shall be of fine grain alloy cast iron, with a minimum tensilestrength of 30,000 PSI. All moving parts in contact with water shall be of high quality bronze orstainless steel. Pumps utilizing castings made of lower tensile strength cast iron are notacceptable.The pump body shall be split, on a single plane in two sections for easy removal of the entireimpeller assembly, including wear rings and bearings from beneath the pump, without disturbingpiping or the mounting of the pump.The pump shall have one (1) double suction impeller. The pump body shall have two (2) opposeddischarge volute cut waters to eliminate radial unbalance.The pump shaft shall be rigidly supported by three bearings for minimum deflection. One high leadbronze sleeve bearing shall be located immediately adjacent to the impeller. The sleeve bearingshall be lubricated by a force-fed, automatic oil lubricated design, pressure balanced to excludeforeign material. The remaining bearings shall be heavy-duty, deep groove ball bearings in thegearbox and they shall be splash lubricated.PUMP PACKINGSThe pump shaft shall have a packing gland on the inlet side of the pump. The gland shall be ofsplit design for ease of repacking. The gland shall be of full circle, threaded design; to exertuniform pressure and prevent "cocking" and uneven packing load when it is tightened. It shalleasily adjust by hand with rod or screwdriver without the need for special wrenches.Revised 6/2/09 Page 12 of 114
Demo #3709 Smeal <strong>Fire</strong> Apparatus Co. 75’ Heavy Duty AerialThe packing rings shall be of a unique, permanently lubricated, long-life graphite composition andhave sacrificial zinc foil separators to protect the pump shaft from galvanic corrosion.PUMP GEARBOXThe gearbox shall be assembled and tested at the pump manufacturer factory.Pump gearbox shall be of sufficient size to withstand up to 16,000 ft lbs of torque in road operatingconditions. The drive unit shall be designed of ample capacity for lubrication reserve and tomaintain the proper operating temperature.The gearbox drive shafts shall be of heat-treated chrome nickel steel and at least 2-3/4 inches indiameter, on both the input and output drive shafts. They shall withstand the full torque of theengine.All pump drive gears shall be of highest quality electric furnace chrome nickel steel. Bores shall beground to size and teeth integrated, shaved, hardened and ground to give an extremely accurategear for long life, smooth quiet running, and higher load carrying capability. An accurately cut spurdesign shall be provided to eliminate all possible end thrust.The pump ratio shall be selected by the apparatus manufacturer to give maximum performancewith the engine and transmission selected.Oil shall be supplied with the pump gearbox.HALE ANODESThere shall be two (2) Hale zinc anodes provided with the fire pump. The anodes shall aid inpreventing galvanic corrosion within the water pump. The anodes shall be installed in the suctionmanifold of the pump and shall easily replaceable.HALE ANODESThere shall be two (2) Hale zinc anodes provided with the fire pump. The anodes shall aid inpreventing galvanic corrosion within the water pump. The anodes shall be installed in thedischarge manifold of the pump and shall easily replaceable.THERMAL RELIEF VALVE W/INDICATORThere shall be a thermal relief valve, model TRV-L120 installed on the pump. The relief valve shallautomatically relieve water from the pump when the temperature of the pump water exceeds 120degree Fahrenheit. The valve shall automatically reset after activation.A light installed on the pump operator's panel shall indicate when the valve has been activated sothe pump operator may take corrective action. A "push to test" button shall be installed beneaththe indicator lamp to allow the pump operator to test the lamp.AIR OPERATED PUMP SHIFTThe pump shift actuating mechanism shall be air operated from a valve in the cab identified as"PUMP SHIFT". Full instructions for shifting the pump shall be inscribed on the valve plate.Revised 6/2/09 Page 13 of 114
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