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<br />7 <br /> <br />hopper dump if conveyer is in down position. Conveyer grease <br />fittings shall be centrally located. The unit shall include a <br />conveyer flush/tank fill selector system. The conveyer shall be no <br />less than 60” wide. Sweeper shall have the provision to be <br />converted to a belt style conveyer for application flexibility. <br /> <br />Air System: The pneumatic system shall have DOT fittings. There shall be a <br />PR4 type pressure protector for the chassis air system to protect <br />the chassis air system. All pneumatic cylinders shall be <br />interchangeable. All pneumatic cylinders must be rated to 150 <br />PSI and have a separate rod seal and wiper to prevent <br />contamination entering the cylinder. <br /> <br />Yes No <br /> <br />Hydraulic System: Maximum 35-gallon hydraulic reservoir with sight gauge <br />indicating oil level and temperature. The system shall contain <br />one 100-mesh suction strainer and one 6-micron absolute return <br />filter. Quad gear pump, with direct drive from auxiliary engine. <br />The main broom, each side broom and the conveyer shall have <br />independent, dedicated gear pump sections. Auxiliary engine <br />must power all sweeper hydraulic functions. System shall include <br />a hydraulic oil cooler, sized to allow for continuous operation <br />with broom speeds set to the minimum possible and the aux <br />engine set to the maximum. <br /> <br />Yes No <br /> <br />Sweep Path: Shall be minimum 10’ with both side brooms down. Yes No <br /> <br />Side Brooms: Dual side brooms 46-inch diameter, hydraulically driven, raised <br />and lowered controlled by the operator from the cab. Brooms to <br />be free floating trailing arm to prevent damage when <br />encountering an obstacle. Both side brooms to be able to extend <br />and retract while in the sweeping mode, controlled by operator <br />from within the cab. Sweeper shall have center deflector to <br />prevent debris from being transferred side to side. Side broom <br />motors shall be able to simultaneously apply a minimum of 7000 <br />lb.-in. of torque to brooms without stalling them. Both brooms <br />shall have LED lights on them for night operation. Side brooms <br />to operate individually or simultaneously. Brooms shall be five <br />segment tempered steel wire bristles and variable speed from 50 <br />to 150 RPM controlled by operator inside the cab. <br /> <br />Yes No <br /> <br />Main Broom: The main broom shall be not less than 60 inches long and not <br />less than 34 inches in diameter. Broom shall be driven by a <br />hydraulic motor directly mounted to the broom core. The motor <br />shall be protected from overpressure using a relief valve. To <br />provide flexibility for varying sweeping conditions, broom speed <br />Yes No <br />