Figure 4–2. Drill Rod Assembly
✓
Remove the drill rod by pulling straight up and twisting the
extraction tool. Do not loosen the drill rod by tapping from side
to side with a hammer. Also, do not rock the extraction tool
from side to side. This will distort the hole or cause loose
material to fall into the hole.
✓
Carefully pick up the scraper plate.
MARK FOR SCRAPER
PLATE CENTER
EDGE
MARKS
MARK FOR DRILL
ROD CENTER
METHOD 1
METHOD 2
Figure 4–3. Marking the Test Area
SCRAPER
PLATE
SCRAPER
PLATE
To Next Page
Loading...
