Reaming The Hole - Toro Sitework Systems 22420 Operator's Manual

6. Slowly move the traction unit forward, while the
person with the rod guide tool guides the boring bit
into the soil (Fig. 6).
Figure 6
1. Sidewalk or driveway
2. Entrance trench
3. Boring bit
7. Once the entire drill bit is in the soil, push the
auxiliary hydraulics lever into neutral.
8. Stop the engine and wait for all moving parts to stop.
9. Check the grade of the rod. If the rod is not within the
grade tolerances for the job being performed, start the
engine and drive backward to pull the boring bit out of
the soil, then repeat steps 5 through 9, making
adjustments to correct the grade.
10. Remove the rod guide tool.
11. Start the engine and pull the auxiliary hydraulics lever
rearward to start the boring bit.
12. Slowly move the traction unit forward as the boring bit
digs into the soil.
IMPORTANT: Do not drive too fast, forcing the bit
into the soil. Allow the bit to progress at its own rate.
Never push or pull the bit through the soil when the
drive head is not turning.
13. When about 6" of rod are left showing in the entrance
trench or when the boring bit completely enters and
bores into the far side of the exit trench, stop the
traction unit, push the auxiliary hydraulics lever into
neutral, and stop the engine.
14. If the boring bit has not yet entered the exit trench,
complete the following:
A. Detach the rod from the drive head.
B. Start the engine and back up to the end of the
entrance trench.
C. Stop engine and wait for all moving parts to stop.
1
5
3
2
m–4431
4
4. Rod
5. Rod guide tool
D. Connect another rod and repeat steps 11
through 14.

Reaming the Hole

15. With a shovel, carefully dig around the boring bit
clearing it of soil until it can be removed (Fig. 7).
16. Remove the boring bit and attach the reamer (Fig. 7).
17. Attach the cable or piping being installed to the swivel
on the end of the reamer (Fig. 7).
m–4432
1. Sidewalk or driveway
2. Exit trench
3. Shovel dug area around
bit
18. Start the engine and pull the auxiliary hydraulics lever
rearward to start the reamer.
19. Slowly move the traction unit rearward as the reamer
digs into the soil.
IMPORTANT: Do not drive too fast, forcing the
reamer into the soil. Allow the reamer to progress at
its own rate. Never push or pull the reamer through
the soil when the drive head is not turning.
20. When a rod coupling is about 6" into the entrance
trench or when the reamer completely enters the trench
with about 6" of the cable or piping, stop the traction
unit, pull the auxiliary hydraulics lever into neutral,
and stop engine.
21. If the reamer has not yet entered the exit trench,
complete the following:
A. Detach the rod from the drive head and rod still in
the soil.
B. Start the engine and move to the front of the
entrance trench.
C. Stop the engine and wait for all moving parts to
stop.
7
1
2
4
3
Figure 7
4. Reamer
5. Swivel
5