This SAE standard applies to horizontal earthboring machines (SAE J2022) of the following types: a. Auger boring machines; b. Rod pushers; c. Rotary rod machines; d. Impact machines. This document does not apply to specialized horizontal directional drills@ mining machines@ conveyors@ tunnel boring machines@ pipe jacking systems@ micro tunnelers@ or well drilling machines. Purpose This document is a guide for reducing hazards for the operators and others during normal operation and maintenance of horizontal earthboring machines listed above.