Toro 2024 Operator's Manual page 51

5. Using the upper wrench, clamp the lead bar and tighten
it to full machine torque.
6. Using the exit-side-lockout transmitter, enable the
exit-side lockout.
7. Double check the drill head and bit to ensure that the
fluid ports are clean and free from obstructions.
8. Install the drill head onto the end of the lead bar as
directed by the drill head manufacturer, then clear 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 boring step 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 your
installation.
Important: Drill and ream in a clockwise rotation.
If you use a counterclockwise rotation the pipe will
disconnect from each other and may be disconnected
underground.
1. When the area is clear of people, disable 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 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).
Adding Drill Pipes
1. Align the pipe joint in the wrench assembly.
2. Close the lower wrench (stationary wrench) onto the
first pipe.
Note: The drilling fluid will automatically shut off
when you activate the upper wrench (makeup/breakout
wrench).
3. Pull back the carriage approximately 12.7 mm (0.5
inch).
Note: This will allow the carriage to float, and will not
damage the pipe threads.
4. Rotate the drill head counterclockwise until the spindle
is completely removed from the pipe.
5. Spray the spindle with thread joint compound, then
return the drill carriage to the upper end of the frame.
6. Rotate the pipe gripper to the closest row of pipes in
the pipe holder.
7. Lower a pipe into the pipe gripper and grip it in place.
8. Rotate the pipe gripper toward the thrust frame, and
extend it until the pipe is centered over the frame and
in front of the spindle on the drill carriage.
9. Rotate the drill spindle clockwise and move the carriage
slowly forward to insert the spindle into the female end
of the pipe (Figure
Note: Tighten the joint until the pipe is rotating with
the spindle.
10. Move the drill carriage slowly down the frame
until the male threads on the pipe are under
the thread-joint-compound applicator and apply
thread-joint compound to the threads.
11. Rotate the drill spindle clockwise and move the carriage
slowly forward to insert the male end of the pipe into
the female end of the previous pipe. Tighten the joint
until you reach no more than 2,304 N-m (1,700 ft-lb).
12. Release and retract the pipe gripper, rotating it all the
way out past the third row of pipes.
Important: Ensure that you fully retract the
pipe gripper and rotate it all the way out or the
carriage may collide with the gripper, damaging
the machine.
13. Release the wrench and continue the drilling operation.
Software version K or newer: After loading the first pipe the
software will skip the certain proximity switches to improve
operator productivity. The grippers will also function when
the pipe loading cam is extended and retracted without
operator input.
Steering the Drill Head
The drill bit is shaped like a wedge, angled from one side of
the bit to the other. When you push the bit through the soil
without rotating it, it will veer toward the direction the wedge
is pointing. When you rotate the pipe and drill head it bores
through the soil in a straight path.
1. Drill bit
51
50).
Figure 52