Allmand Brothers Allmand 8.5 10 FT BACKHOE - Manual (Page 20)

20
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 pipe-
line. 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, finishing each corner as you come to it.
G OPERATING INSTRUCTIONS
OPERATING TECHNIQUES
ATTACHMENT TYPE BACKHOES
PIPELINE LEAK REPAIR