Bradco 509 Betreibershandbuch PDF herunterladen (Seite 25)

OPERATING INSTRUCTIONS

6883 1-25-06-2

OPERATING TECHNIQUES

ATTACHMENT TYPE BACKHOES

To check for pipeline leaks, start by digging a bellhole about six feet wide and ten feet

long. Then, dig lengthwise along the pipeline to locate the leak. Once the leak is located,

position the unit to dig at grade level on both sides of the pipeline. If a section of pipe is to be

replaced, strip the soil from both ends of the bellhole. Enlarge the hole enough to allow the

workmen adequate working space in the leak area.

DIGGING STRAIGHT WALL SHALLOW BASEMENTS

Begin at one corner, and remove as much material as possible to grade level. Reset

the unit forward and continue digging to the grade level. Progress around the edge of the

basement, nishing each corner as you come to it.

PIPELINE LEAK REPAIR

75475

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Bradco 509 Betreibershandbuch Seite 25