OPERATING INSTRUCTIONS
AU103170 H5B 38
2. Dig a trench (starting hole) to a depth slightly deeper
than the depth at which boring operations will begin
(since the Hydra-Borer bores from front or rear, spoil
may be piled on either side of the trench). The
starting hole should be approximately two or three
times the length of the drill stems being used.
3. Place the two guide anchors (1) approximately 1.52
to 2.44 m (5 to 8 feet) apart in the starting hole near
the point where boring operations will begin. Place a
guide anchor tube (2) over each anchor. The guide
ring (3) on each tube should face away from the wall
of the starting hole. Make sure that the guide anchors
are firmly secured in the ground so that they will not
move or collapse during the Hydra-Boring operation.
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4. Align the guide anchors in the direction of the boring
path between the starting hole and the target hole.
The handle of the drill stem level assembly (See Ref.
9 on next page) or a string may be used to align the
guide anchors with the boring path.
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5. Attach the required quantity of drill stem segments to
the Hydra-Borer (See Dry or Wet Boring in this
manual) and lower the drill stem into the starting
trench so that the drill stem (4) passes through the
guide rings (3) on the guide anchor assemblies (5).
6. To level the drill stem, place the level frame (6) over
the drill stem at a point between the two guide
anchors. Use the level gauge (7) on the level frame to
determine if the drill stem is level. If the drill stem is
not level, use the tube adjustment locks (8) on one or
both of the guide anchor assemblies to slide the guide
anchor tube(s). When the level gauge indicates that
the drill stem is level, tighten the tube adjustment
lock(s). When the drill stem is level remove the level
frame from the drill stem.
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WARNING:
Never allow anyone in the trench
while digging.
1
2
3
3
STARTING
HOLE
GUIDE
ANCHORS
TARGET HOLE
9
7
8
6
3
4
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