Ditch Witch JT100 - JT;AT System

JT100/JT100 All Terrain Operator’s Manual Controls - 63
JT/AT System
JT/AT System
1. Mode selector switch 2. Inner rotation hourmeter
Item Description Notes
1. Mode selector switch To select AT mode, press left.
To select AT DIRT mode,
move to center.
To select JT mode, press
right.
Use AT or AT DIRT drilling mode
when using AT pipe with inner shaft.
Use JT drilling mode when using JT
pipe without inner shaft.
IMPORTANT: See “Prepare Drilling
Unit” on page 101 for how to set up
unit for each drilling mode.
2. Inner rotation
hourmeter
Displays inner rotation
operating time.
Use these times to schedule service
for downhole tool and inner shaft. See
“Service” on page 189.