Toro 4045 Operator's Manual page 73

Removing Drill Pipes
1. Using the exit-side-lockout transmitter, enable the exit
side lockout.
2. Install a drill-pipe wiper around the pipe and into the
retaining bracket on the front of the machine.
Note: This will remove most of the dirt and mud
from the pipe as you pull it back into the machine,
keeping the machine clean. Contact your Authorized
Toro Dealer to purchase drill-pipe wipers.
Figure 86
1. Drill-pipe wiper
3. Disengage the exit-side lockout and reset the system.
4. Begin rotating the drill spindle clockwise and slowly
retract the drive carriage to pull the pipe back into the
machine.
5. When the joint between the pipes is centered between
the 2 wrenches, the drive carriage will stop, and a green
light will illuminate below the spray valve.
6. Close the lower wrench (stationary wrench) onto the
pipe joint.
Note: The drilling fluid will automatically shut off
when you close the lower wrench (stationary wrench).
7. Rotate the pipe cam to the drill frame, extend
pipe-gripper arms to the pipe, and grip the pipe to
support it.
8. Close the upper wrench (makeup/breakout wrench)
onto the pipe joint.
9. Rotate the upper wrench (makeup/breakout wrench)
counterclockwise until the joint is loosened.
10. Release the upper wrench (makeup/breakout wrench).
11. 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.
1
2
2. Drill pipe
12. Rotate the drill spindle counterclockwise, moving
rearward slowly until the pipes are separated.
13. Move the drill carriage back until the male, pipe threads
just clear the female end of the lower pipe, then close
the upper wrench (makeup/breakout wrench) onto the
pipe end, but not on the threads.
14. Rotate the drill spindle counterclockwise until the
upper-pipe joint is loose but not separated.
15. Release the upper wrench (makeup/breakout wrench).
16. Move the drill carriage back until the pipe is lined up
with the pipe holder.
17. Rotate the drill spindle counterclockwise, moving
rearward slowly until the spindle fully separates from
the pipe.
18. Rotate the pipe-gripper arms until the pipe rests inside
the pipe-gripper cam.
19. Rotate the pipe cam to the desired row.
Note: Fill the outside rows first.
20. Release the pipe gripper, and raise the pipe into the
holder row with the pipe elevator.
21. Rotate the pipe cam past the fourth row of pipes to
the home position.
g021841
Important: Ensure that you fully retract the
pipe gripper, or the carriage may collide with the
gripper, damaging the machine.
22. Move the drill spindle down the frame under the
thread-joint-compound applicator, and spray the
spindle with thread joint compound.
23. Rotate the drill spindle clockwise, and move the
carriage slowly forward to insert the spindle into the
female end of the pipe secured in the lower wrench
(stationary wrench). Tighten the joint until you reach
the full machine torque.
24. Release the wrench and continue reaming/retraction
as needed.
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