Ditch Witch JT922 - Manual (Page 118)

JT922 Operator’s Manual
Systems and Equipment - 117
Drill Pipe
CMW
Use Caps and Plugs
Install plug on saver sub before transporting.
Cap and plug male and female ends of drill
pipe during prolonged storage.
Replace Worn Saver Sub
Because each pipe comes in contact with the saver sub, check saver sub regularly for wear. Replace it
when it is worn, or it will damage your drill pipe. See page 147 for replacement procedure.
Precondition a new saver sub the same way you do new pipe. See “Precondition New Pipe” on page 116.
Rotate Pipe Order
Because the lead drill pipe is in the ground longer, it is subjected to higher shock loads and experiences
more wear. To help spread this wear evenly over all pipe, move the lead pipe from the previous job out of
the first position.