The technology was new and equipment operators were using makeshift tracking methods to monitor location of the drill head and estimate the 'clock' position of its face in order to make directional adjustments. In the early 1990s when compact horizontal directional drill (HDD) models began to appear on utility job sites, project owners often expressed amazement when a drill operator brought the drill head to the surface at or near the projected target. Page/Link: Page URL: HTML link: The Free Library. See your Vermeer dealer for comprehensive service and genuine Vermeer replacement parts.
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