Fire Control Notes, 1958, Vol. 19: A Periodical Devoted to the Technique of Forest Fire Control (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Fire Control Notes, 1958, Vol. 19: A Periodical Devoted to the Technique of Forest Fire Control

Power from the saw motor is supplied to turn the augers through the cutting chain as the chain moves along the blade and engages the sprocket. The rotating augers throw dirt to both sides, making a clean trench.

In operation, the machine is held at a steep angle while resting on a small support wheel (fig. 1) mounted directly below the blade. The depth of trench can be varied by raising or lowering the handle of the power saw motor to engage the rotating augers in the soil. A guard protects the operator from flying dirt and stones. The suggested method of use is with a 3-man crew, one with the trencher, one with a pulaski for heavy cutting and dig ging, and one with a shovel for line cleanup.

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