Figure 74
1.
Rear stabilizers
11.
Press the 2 right stake levers in to lower and spin the
right stake auger until it seats fully (
).
g021835
1
2
3
4
Figure 75
1.
Left-stake-raise/lower
lever
3.
Right-stake-raise/lower
lever
2.
Left-stake-spin lever
4.
Right-stake-spin lever
12.
Repeat step
for the left-side stake.
Connecting to a Drilling-fluid Source
When drilling and reaming, you pump a mixture of bentonite
clay, water, and sometimes other ingredients, collectively
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 it from collapsing
on the bore pipe.
Important:
Do not operate the drilling-fluid pump
without a pressurized supply of drilling fluid, or damage
to the pumping system will result.
The specific mixture you need will vary depending on your
soil type and the operation that 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 instead of
mixed drilling fluid.
•
To connect the machine to a mixing system, refer to
Setting up the Mixing System (page 66)
.
•
To connect the machine to a natural water source, refer to
Setting up the Pump to Use a Natural Water Source (page
67)
.
Setting up the Mixing System
Set up your mixing system near the directional drill location,
preferably downwind, so that fumes from the mixing system
engine will not bother you while you are drilling. Follow the
instructions provided in the mixing system
Operator’s Manual
for setting it up and using it.
Complete the steps 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 76
1.
Cam-lock levers
2.
Pump-inlet cap
66
