Ditch Witch JT920, Manual

Page: 95 / 169

JT920/JT920L - OPERATION
95
ADD PIPE
JT920/JT920L - OPERATION
95
ADD PIPE
8. Press top of drilling unit throttle switch until engine is at full
throttle.
9. Adjust fluid pressure.
• Press and hold top of fluid pump switch until pipe fills and
fluid pressure begins to rise.
• Adjust fluid flow control to set pressure to appropriate level.
Do not exceed maximum pump setting.
10. Rotate spindle clockwise, full speed.
11. Move carriage forward slowly. Adjust rotation speed control
according to bit size and soil conditions.
12. Locate drill head at least every half-length of pipe.
8. Press top of drilling unit throttle switch until engine is at full
throttle.
9. Adjust fluid pressure.
• Press and hold top of fluid pump switch until pipe fills and
fluid pressure begins to rise.
• Adjust fluid flow control to set pressure to appropriate level.
Do not exceed maximum pump setting.
10. Rotate spindle clockwise, full speed.
11. Move carriage forward slowly. Adjust rotation speed control
according to bit size and soil conditions.
12. Locate drill head at least every half-length of pipe.