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ir4 _ q E ! e Never operate a calhead(or perform any other task around a drill a Do not use more rope wraps than are required to hoist a toad. rig) with loose unbuttoned or otherwise unfastened cicthing or when v Do nos leave a calhead unattended wi!h the rape wrapped on the n wearing gloves with large cuffs or loose strops or facings, drum. `fkj+; t Position all other hoist lines tc prevent contact with lire opera- rcrti�� IRA ling cathead rope, a When using the calhead and rope for driving or bock driving, s make sure that all threaded ccaneclions are light and stay as far N ovray as possible from the hommer impocl point. • The calhead operator must be able to operate the cotheod stand• ingan a level surface with good, firm looting conditions without dis- y traction or dishr:6once. t 16. We Use OF Augers The following general procedures should be used when starling .,., a boring with continuous flight or hollow stem augers: • Prepare to star! an auger boring with The drill rig level, the + i clutch or hydraulic rotation control disengaged, the transmission in I low gear and she engine running at low RPM. s �- • Apply an adequate amount of down pressure prior to rotation to � seat the auger head below the ground surface, • Look at the auger head while slowly engaging flee clutch or ro• �f talion e.ntrol and starling rotation. Stay clear of the auger, e Slowly ;atale the auger and auger head while continuing to apply down pressure. Keep anti hand on the clutch or Ike rotalion control at all times until the cuger has penetrated about one foot or more Le- low ground surface, .1 • It the auger head slides out of alignment, disengage the clutch or hydraulic rotoliat�.control and repeat the hole slotting process. • An auger guide can facilitate the starting of a straight hole "r through hard ground or a pavement. The operator and tool handler should establish a system of re• ,. t ponsibilit:r for the series of various activities requiled for auger drilling, such as connecting and disconnecting auger sectionsr and ,. to Do not use o rape Ilial is any longer than necessay. A rope Inserting and removing the auger fork. The operator muss ossure that shot is too long can form a ground loop or otherwise become entangled the tool handler is well away ftom the auger column and that the with the operator's (cgs. auger fork is removed before starting rotation, ;x —Ze —79 1