Ditch Witch TK Series Manual - Manual (Page 42)

TK Series Guidance System Operator’s Manual
System Operation - 41
Locate
CMW
Peak Location
1. Walk bore path with bottom of tracker parallel to beacon. Do not hold tracker at right angle to beacon.
2. Move until beacon icon is shown and both fore/aft arrows are shown. Sweep tracker from side to side
and use signal strength display to find lateral location of beacon. The beacon is located at the point
where the signal strength number is the highest and the bar graph indicator is highest.
3. Step back until null point icon is shown and sweep tracker side to side until both left/right arrows are
on.
4. Move forward until beacon icon is shown and both fore/aft arrows are lit.
5. Press the Select/Send button to log depth estimate. Mark location.
Null Point Location
1. Starting from behind the beacon, walk until the null point icon is displayed. Follow arrows and minimize
signal strength to find and mark the null point.
2. Walk forward through the beacon region and into the opposite null point region. Find and mark the null
point.
3. Walk backwards along the line connecting the two null points until the beacon icon is displayed and
fore/aft arrows are lit.
4. Press the Select/Send button to log depth estimate. Mark location.
Incorrect procedures could result in death, injury, or property damage.
Learn to use equipment correctly.
To help avoid injury, do not stand or walk over the bore path while drill string is moving
(during drilling and backreaming).
NOTICE: High temperature is the primary cause of beacon failure. Monitor beacon temperature
carefully.
• If temperature goes above 160°F (70°C), stop drilling, pull back 3’ (.9 m), and pump fluid into
hole until beacon cools.
• Operating beacon at temperatures above 176°F (80°C) will cause beacon overheating and
failure and will void beacon warranty. Monitor beacon temperature carefully.
• Operating fluid-assisted drilling system without proper fluid flow will cause overheating and
damage to beacon and tool head.