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section when noisting the auger over the top of the augMr • Only operate the cathead standing on a level surface with in the ground or other hard surfaces such as the drill rig plat- good,firm footing conditions without distraction or disturbance. form. • Never allow feet to get under the auger section that is being hoisted. 16. Augers • Use a long-handed shovel to move auger cuttings away from Follow these general procedures when starting a boring the auger. Never use hands or feet to move cuttings away from with continuous flight or hollow-stem augers: the auger. • Start an auger boring with the drill rig level, the clutch or • Do not attempt to remove earth from rotating augers.Clean hydraulic rotation control disengaged, the transmission in low augers only when the drill rig is in neutral and the augers are gear, and the engine running at low RPM. stopped from rotating. • Apply an adequate amount of down pressure prior to rota- tion to seat the auger head below the ground surface. • Look at the auger head while slowly engaging the clutch or 17. Rotary and Core Drilling rotation control and starting rotation. Stay clear of the auger. Check rotary drilling tools prior to drilling: • Slowly rotate the auger and auger head while continuing to Lubricate and check for frozen bearings before using apply down pressure.Keep one hand on the clutch or on the rota- waterlair swivels and hoisting plugs.Water/air swivel bearings tion control at all times until the auger has penetrated about one must be free before using,and stay clear of water/air swivel hose foot or more below ground surface. when rotating. • If the auger head slides out of alignment, disengage the • Check drill rod chuck jaws periodically and replace when clutch or hydraulic rotation control and repeat the hole starting necessary. process. -- - - -: -- - .. . - - • -Check the capacities of hoists and.sheaves against the. _ • An auger guide can facilitate the starting of a straight hole anticipated weight to the drill rod string plus other expected through hard ground or a pavement. hoisting loads. Establish a system of responsibility for the operator and tool During rotary or core drilling, follow these special precau- handler to follow during the series of various activities required tions that involve chucking,joint break, hoisting, and lowering for auger drilling,such as connecting and disconnecting auger of drill rods: sections,and inserting and removing the auger fork.The operator • Only the operator of the drill rig should be allowed to brake must ensure that the tool handier is well away from the auger or set a manual chuck so that rotation of the chuck will not occur column and that the auger fork is removed before starting rota- prior to removing the wrench from the chuck. tion. In addition: • Drill rods should not be braked during lowering into the hole • When rotating augers, stay clear of the rotating auger and with drill rod chuck jaws. other rotating components of the drill rig. Never reach behind or • Do not lower drill rods into the hole with pipe wrenches. around a rotating auger for any reason whatever. • If a string of drill rods is accidentally or inadvertently released • Only use the manufacture's recommended method of into the hole,do not attempt to grab the falling rods by hand or securing the auger to the power coupling. Do not use an over- with a wrench. length pin or bolt. Do not touch the coupling or the auger with • In the event of a plugged bit or other circulation blockage, hands, a wrench, or any other tools during rotation. relieve the high pressure In the piping and hose between the • Whenever possible,use tool hoists to handle auger sections. pump and the obstruction before breaking the first tool joint. • Never place hands or fingers under the bottom of an auger -39- -29-