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t <br />t <br />features required to fully comply with the specifications and requirements <br />of this guide without showing evidence of undue stress or failure. <br />C. It shall be the responsibility of the permittee to assure that the equipment <br />to be used in the crossing operation is in sound operating condition. <br />Backup equipment may be required where job site conditions indicate that <br />severe damage to the roadway or a hazardous condition may result in the <br />event of an equipment breakdown and where the condition of the <br />equipment to be used indicates that routine component replacement or <br />repair will likely be necessary during the crossing. <br />1 09/03 <br />1. Auger Power Units - Power units providing rotational force to the <br />cutting head and /or the auger used to remove spoil material as the <br />bore progresses, may also provide power for jacks used to push <br />the casing. Power units shall be in proper operating condition and <br />shall have sufficient power to satisfactorily complete the proposed <br />crossing according to the manufacturers recommendations. <br />2. Augers - Screw -type steel drive tubes or shafts with one male end <br />and one female end for coupling and welded steel flighting <br />(threads). <br />a) Auger shafts shall be straight and otherwise undamaged. <br />b) Plighting shall be undamaged and securely welded to the <br />body of the auger shaft and be continuous with no gaps <br />from end to end of each auger section. <br />3. Cutting Heads - Boring attachment fastened to leading end of first <br />auger section equipped with special teeth, bits, blades, chippers or <br />cutters used to cut or chip away rock or hard soils in advance of <br />auger. <br />a) Cutting heads shall be undamaged and have no missing or <br />broken teeth or bits. <br />b) Pinned or hinged wing cutters must be constructed in such <br />a manner as to ensure overboring does not exceed limits <br />specified in Section 5.E (3) of this exhibit. <br />4. Auger Tracks - Supports boring machine and provides line and <br />grade control. <br />a) Tracks shall be straight and otherwise undamaged with no <br />broken welds. <br />16200 -4 03- 1438.A -R <br />