Ditch-witch JT922 User Manual download pdf (Page 82)

JT922 Operator’s Manual Conduct a Bore - 81

Assemble Drill String

CMW

Connect Drill Pipe

1. Start drilling unit engine.

2. Align transition sub (3) in front wrench.

3. Clamp tool in front wrench. See “Clamp Pipe” on page 79.

4. Lift pipe box latches.

5. Load pipe (4).

• Lubricate upper pipe threads.

• Move pipe to spindle. Move pin end of pipe into saver sub and release pipe to rest rear wrench.

Lubricate lower threads.

6. Connect pipe.

• Move carriage forward until saver sub nears male pipe thread.

• Slowly rotate spindle clockwise. Carriage will move forward as threads screw together.

• Slowly move carriage forward until pipe end touches end of transition sub.

• To screw pipes together and fully torque joint, slowly rotate drill pipe until spindle stops turning.

• Open wrench.

7. Close guides.

NOTICE: If drilling unit is set up in a side-slope,

the rear pipe box latch should be left latched to

help ensure that upper rows of drill pipe do not

fall.

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 158 159

No comments

Ditch-witch JT922 User Manual Page 82