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called drilling fluid or "Mud", through the pipe and into the
bore. This drilling fluid, or "Mud", does the following for
your bore:
•
Lubricates the drill head
•
Loosens the soil into which the drill is cutting
•
Penetrates and binds loose soil to keep them from
collapsing on the bore pipe.
The specific mixture you need will vary depending on your
soil type and the operation you are performing; refer to your
mixing system Operator's Manual for details.
Conversely, for some jobs (depending on the soil type and
distance), you can pump screened water from a natural water
source, such as a lake or river, through the drill in lieu of
mixed drilling fluid.
•
To connect the machine to a mixing system, refer to
Setting Up the Mixing System (page 24)
•
To connect the machine to a natural water source, refer
to
Setting Up the Pump to Use a Natural Water Source
(page 24)
Setting Up the Mixing System
Set up your mixing system near the directional drill location,
preferably down wind so fumes from the mixing system
engine will not bother you while drilling. Follow the
instructions provided in the mixing system Operator's Manual
for setting it up and using it.
Complete the following to connect the exit hose from the
mixing system to the drilling-fluid pump on the machine:
1. Raise the cam-lock levers on the pump-inlet cap and
remove the cap
(Figure
1. Cam-lock levers
2. Insert the hose from the mixing system over the pump
inlet and secure it with the cam-lock levers.
25).
Figure 25
2. Pump-inlet cap
Setting Up the Pump to Use a Natural Water Source
To set up a pump to use a natural water source, you must
ensure that you use the Y-screen to filter all materials other
than water.
To install the Y-screen perform the following tasks:
1. Remove the pump-inlet cap
1. Pump threads
2. Pump-inlet cap
2. Align the Y-screen with the threads on the pump
(Figure
26).
3. Rotate and tighten the Y-screen onto the pump.
4. Attach the hose to the Y-screen, and begin pumping
from the natural water source.
Deploying the Zap-Alert System
The Zap-Alert system is an electric strike sensing device on
the machine that triggers a strobe light and audible alarm in
the event that the drill bit, reamer, or stake breaks into an
energized power line. In the event of an electric strike, the
machine will become energized, setting off the alarm. The
operator's platform is electrically isolated from the rest of
the machine to protect you.
g022398
24
(Figure
26).
Figure 26
3. Y-screen
g023058
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