Removing An Accessory; Removing The Drive Head From The Traction Unit; Operation; Digging The Trenches - Toro Sitework Systems 22420 Operator's Manual

4
1
Figure 4
1. Accessory shaft
2. Socket
4. Repeat steps 2 and 3 for other accessories to be
installed.

Removing an Accessory

1. Stop the engine and wait for all moving parts to stop.
2. Press the push button connector securing the accessory
shaft in the socket and pull the accessory free of the
socket.
Removing the Drive Head from
the Traction Unit
1. Start the engine and lower the drive head to the ground
or onto a trailer.
2. Stop the engine and wait for all moving parts to stop.
3. Disengage the quick attach pins by turning them to the
outside.
4. Move the auxiliary hydraulic lever forward, backward,
and back to neutral to relieve hydraulic pressure at the
hydraulic couplers.
5. Slide the collars back on the hydraulic couplers and
disconnect them.
IMPORTANT: Connect attachment hoses together to
prevent hydraulic system contamination during
storage.
6. Install protective covers onto the hydraulic couplers on
the traction unit.
7. Start the engine, tilt the mount plate forward, and back
the traction unit away from the drive head.
2
3
m–4020
3. Push button connector
4. Hole

Operation

Digging the Trenches

Before drilling under a walk or driveway, you must make
an entrance and an exit trench on either side of the drilling
area. Both trenches must be at least 6 inches wide and 18
inches deep. The entrance trench must be at least 7 feet
long and the exit trench 3 to 6 feet long. The entrance
trench should be perpendicular to the walk or driveway
and the exit trench should be parallel to the walk or
driveway. The exit trench should be centered across from
the entrance trench (Fig. 5).
3
2
m–4430
1. Entrance trench
2. Sidewalk

Boring the Hole

IMPORTANT: Boring is a two person operation. Do
not attempt to perform this operation by yourself.
1. Position the traction unit with the drive head at the
beginning of the trench and lower it to the appropriate
depth.
2. Stop the engine and wait for all moving parts to stop.
3. Connect a rod and boring bit onto the drive head.
4. Connect the rod guide tool to the rod just behind the
boring bit (Fig. 6).
5. With the person guiding the boring bit positioned to
the right of the trench (Fig. 6), start the engine, move
the pump selector valve to slow (turtle), position the
throttle to within the middle of the RPM range, and
pull the auxiliary hydraulics lever rearward to start the
forward rotation of the boring bit.
6
1
Figure 5
3. Exit trench