Casing Phase Tooling - Barbco Pathfinder PF500 Operation Manual

CASING PHASE TOOLING

KNIFE REAMER HEAD-
Used in soft ground conditions. An
auger inside the casing with or
without the cutting head removes the
spoil from behind the blades.
WARNING! Wing cutters
must be removed from the
cutting head
Direct connection to the pilot string.
STANDARD PILOT READY HEAD-
Used in ground conditions that
require the casing to be overcut.
Recommended with a drift ring. Best
practice to shim the inside of the
casing were the ring makes contact in
order to center the head.
Shock rod and swivel should be used
to keep the pilot string form rotating.
FLEXBOR HEAD-
Used in ground conditions that
require the casing to be overcut in
boulders or solid rock.
This method utilizes the pilot to
supply pressurized air to blow the
cuttings thru the cutting head into
the drive casing then back to the
boring machine.
Direct connection to the pilot string.