Prepare jobsite and equipment, Approach trench (1), Target trench (2) – Ditch Witch 410SX User Manual
Page 68: 410sx operator’s manual
410sx Operator’s Manual
Drill - 67
Prepare Jobsite and Equipment
CMW
Prepare Jobsite and Equipment
Approach Trench (1)
1.
Mark path where you intend to drill.
2.
Dig an approach trench (1) along the
intended bore path.
Target Trench (2)
1.
Select a completion point for the drilling project.
2.
Dig a target trench (2) across the anticipated completion point.
IMPORTANT: The approach trench should
be at least:
•
deep enough for pipe to lay flat and
enter soil at correct angle
•
20’ (6 m) long
•
4” (100 mm) wide
IMPORTANT:
•
The actual length of the target trench depends on soil conditions and length of pipe sections. Make
it deep enough for drill bit to enter slightly above the trench floor.
•
An alternative to digging a target trench is to use an electronic tracker to locate the bit, then dig
down with posthole diggers. This method may be desirable to minimize surface soil disturbance.