Systems and Equipment - 162 JT40/JT40 All Terrain Operator’s Manual
DrillLok® System
DrillLok
®
System
This mode allows the tracker operator to disable hydraulic power to drilling unit thrust and rotation.
Operation with Subsite
®
Electronics Tracking Equipment: See tracker manual.
Operation without Subsite Electronics Tracking Equipment: Only available on units with DrillLok
system. See DrillLok operation sheet.
Rotating shaft will cause death or serious injury. Stay
away.
To help avoid injury:
• Use DrillLok system any time you change downhole tools or during other times when the drill string
is exposed.
• If you are not using DrillLok system, turn off drilling unit and keep key in tracker operator’s
possession before changing downhole tools.
NOTICE: This mode does not disable thrust and rotation immediately. Functions are disabled within 16
seconds.
If thrust and rotation are not enabled check whether
the green DrillLok light (shown), located on front of
drilling unit, is on. If it is, thrust and rotation have been
disabled by DrillLok.system.
NOTICE: Tracker operator cannot disable thrust and
rotation from tracker if DrillLok key is installed in
drilling unit and turned to the deactivated position.
See “DrillLok® key” on page 71.
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