JT1220 Mach 1 Operator’s Manual Conduct a Bore - 91
Operate Carriage Control
CMW
Operate Carriage Control
The thrust/rotation control has eight positions which allow the four basic
functions to be combined. The chart below summarizes functions that occur
when control is put at a combined position. Operator must be in seat for
control to function.
Carriage Movement Rotation Direction
forward clockwise (makeup)
reverse counterclockwise (breakout)
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