Ditch Witch 1820 Operators Manual - Ben's Rental and Sales
Ditch Witch 1820 Operators Manual - Ben's Rental and Sales
Ditch Witch 1820 Operators Manual - Ben's Rental and Sales
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<strong>1820</strong> - DRILLING ATTACHMENT 49<br />
ADD ROD<br />
ADD ROD<br />
1. Stop drilling attachment.<br />
2. Back up tractor 6" (150 mm) to loosen drill rod in ground.<br />
3. Disconnect drill rod from drilling attachment.<br />
4. Move tractor away from bore.<br />
5. Add one drill rod to continue bore.<br />
BACKREAM<br />
After drill bit enters target trench, the bore hole may be enlarged<br />
by changing the drill bit to a backreamer <strong>and</strong> drawing it back<br />
through the initial bore.<br />
1. Turn tractor ignition switch to STOP.<br />
2. Replace drill bit with backreamer.<br />
3. Start tractor engine <strong>and</strong> begin clockwise rotation.<br />
IMPORTANT: Always rotate clockwise during<br />
backreaming. Rotate counterclockwise only to dislodge<br />
a dry bore bit or reamer that has siezed in the bore hole.<br />
4. Slowly back up tractor while maintaining rotation.<br />
5. When backreamer exits the bore hole, stop rotation<br />
immediately.<br />
IMPORTANT:<br />
• Do not try to increase hole size too much in one pass.<br />
Several passes using successively larger reamers will<br />
save wear on machine.<br />
• During backreaming, keep drill string straight. Sharp bends<br />
in the drill rod at the motor coupling can cause rod failure.
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