Ditch Witch 420sx, Operator'S Manual

Page: 80 / 141

420sx Operator’s Manual
Drill - 79
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.
Drill Rod and Equipment
1. Assemble at least 20’ (6 m), but not more than 30’
(9 m), of drill rod.
2. Install drill bit to the cutting end of the drill string.
3. Put drill string in approach trench.
4. Move tractor to the approach trench and align the
drilling attachment with the intended bore path.
5. Turn off engine.
6. Attach drill string to drilling attachment.
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.
NOTICE: More than 10-15’ (3-4.5 m) of drill
rod out of the trench increases the
tendency of drill rod to bend.