Prepare jobsite and equipment, Approach trench (1), Target trench (2) – Ditch Witch RT120 Q User Manual
Page 124: Rt120q operator’s manual
RT120Q Operator’s Manual
Drill - 123
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.