Toro 4045 Operator's Manual page 69

Setting up the Drill Head and the
Tracking System
The drill head consists of 2 parts, the drill bit and the sonde
housing (Figure 81).
Figure 81
1. Sonde housing
Drill bits vary in size and type to meet the various soil
conditions that you may need to drill through. Some of the
possibilities are as follows:
•
Straight blade—Used in a wide range of medium density
soils.
•
Bent blade—Used in medium to soft soils. This bit has
an added 20 degree bend to increase steering performance
in soft soils.
•
Triangle point blade—Use in hard and rocky soils. This
bit has carbide edges to reduce wear.
All of the above bits come in varying widths. A wider blade
increases your ability to steer in soft soils. A narrower blade
moves through hard soils better. Contact your Authorized
Toro Dealer for a complete list of available blades.
The sondes and receivers are essential to track the position
of the drill head throughout the drilling operation. The
sonde housing on the drill head opens up to accept the sonde
beacon which works with the receiver to track the location,
pitch, direction, head orientation, and more of the drill head.
Refer to the Tracking System Operator's Manual for instructions
on using the system.
To install the sonde beacon into the sonde housing on the
drill head, complete the following:
1. Replace the batteries in the sonde beacon as described
in the Tracking System Operator's Manual.
2. Loosen the screws securing the housing cover to the
housing and remove the cover
2. Drill bit
(Figure 82).
1. Sonde housing
2. Bolts
3. Drill bit
3. Insert the sonde beacon with the forward end toward
the drill bit into the sonde housing
1. Sonde housing
2. Sonde beacon
4. Install the housing cover and secure it with the screws
(Figure 82).
69
Figure 82
4. Cover holes
5. Cover
(Figure 83).
Figure 83
3. Drill bit