Barbco TRIBOR Series Operation Manual page 43

CENTERLINE The vertical distance between the center of the front drive and the ground plane.
CLEANING An action of a boring machine that occurs when the auger is rotating while axially
stationary.
CLUTCH A mechanical device that engages or disengages rotary torque from a power source.
COLLARING The initial entry of casing or a cutting head into the earth.
CONTROL LEVER A handle that activates or deactivates a boring machine function.
CRADLE MACHINE A boring machine typically carried by another machine that uses winches to
advance the casing.
CROSS MEMBERS The lateral supports under the track.
CUTTING HEAD An extension of the auger containing one or more bits to cut or dislodge earth.
DEAD MAN A fixed anchor point used in advancing a saddle or cradle type boring machine.
DEWATER Any method used to lower the water table in the vicinity of the bore.
DOG's Movable protrusions in the push bar that engage holes or blocks in the track.
DRILL STRING System of rods used in conjunction with a cutting bit or compaction bit attached to the
front drive.
DRIVE CHUCK The female hex connector located within the casing pusher.
ENTRANCE PIT An opening in the earth of specified length and width for placing the machine on line
and grade.
ESTOP (EMERGENCY STOP) A red manually operated push button that, when activated, stops all
functions of the machine.
EXIT PIT An opening in the earth located at the expected exit or end of the bore.
EXTENSION TRACK An additional section of track used in front of the master track.
FACE Wall of the entrance pit into which the bore is made.
FEMALE HEX CONNECTOR A hexagonal shaped socket.
FINAL DRIVE The final reduction unit in the drive line.
FLIGHT The spiral plates surrounding the tube of an auger.
FORWARD The clockwise rotation of the auger as viewed from the machine end.
FREE BORING Boring without casing.
FRONT DRIVE The female hex connector bolted directly to the gearbox of the boring machine and
transmits power from the machine to the auger.
40 Appendix