Installing the Drill Head
1.
Using the exit-side-lockout transmitter, activate the
exit-side lockout to disable the thrust and rotation of
the carriage.
WARNING
If the drill rotates or extends while you or
others are manually working on the drill bit or
pipe in front of the machine, the worker could
get caught in the bit or pipe, causing serious
injury, amputation, or death.
•
Activate the exit-side lockout on the
exit-side-lockout transmitter before
approaching the dill bit or pipe when
attached to the machine. This will disable
the drill carriage.
•
Do not wear loose clothing or jewelry when
working on a drill bit or pipe attached to
the machine. Tie long hair up and out of
the way.
2.
Place the lead bar through the lower wrench (stationary
wrench) as shown in
.
Important:
Do not clamp the wrench on the body
of a pipe, or it may damage the pipe. Grip the
pipes on the thickened area near the joint.
Figure 84
1.
Drill pipe
3.
Lower wrench (stationary
wrench)
2.
Upper wrench
(makeup/breakout
wrench)
4.
Lead bar
3.
Hand thread the lead bar onto the drill spindle pipe
threads, then move away from the front of the machine.
4.
When the area is clear of people, activate the exit-side
lockout using the exit-side-lockout transmitter
(the OK-to-Drill light on the control panel should
illuminate); press the exit-side-lockout, reset switch on
the control panel.
5.
Using the lower wrench (stationary wrench), clamp the
lead bar, and tighten the drill spindle to full-seat threads.
6.
Double check the drill head and bit to ensure that the
fluid ports are clean and free from obstructions.
7.
Install the drill head onto the end of the lead bar as
directed by the drill head manufacturer, then move
away from the front of the machine.
Important:
Do not pull the drill head into the
pipe guide, or you may damage the machine or
the drill head.
Boring the Entry Shaft
The first step in boring is to create the entry shaft. In this
step, you push and bore the drill bit and first few pipes into
the ground at an angle from 0 to 16 degrees (with the tracks
flat on the ground) until you reach the desired depth of
installation.
Important:
Drill and ream in a clockwise rotation.
If you use a counterclockwise rotation, the pipes will
disconnect from each other and may be disconnected
underground.
1.
When the area is clear of people, activate the exit-side
lockout using the exit-side-lockout transmitter
(the OK-to-Drill light on the control panel should
illuminate); press the exit-side-lockout, reset switch on
the control panel.
2.
Turn on the drilling-fluid-pump switch, and allow the
fluid pressure to build to 1,379 to 2,068 kPa (200 to
300 psi).
3.
Rotate the drill head until the bit is at the 6 o’clock
position.
4.
Move the carriage forward, driving the bit straight into
the ground until the entire dill housing is underground.
5.
Continue pushing forward, and begin rotating the drill
spindle clockwise to initiate the drilling action.
6.
Drill forward until the carriage reaches the end of the
frame, then retract it about 6 mm (1/4 inch).
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