Ditch-witch JT2020 Manuel d'utilisateur Page 143
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Systems and Equipment - 142 JT2020 Mach 1 Operator’s Manual
Pipeloader
CMW
Correct Misaligned or Jammed Pipe
One pipe box status light on and one light off indicates a misaligned or jammed pipe. Turn off engine and
inspect pipe in active column.
• If one end of a drill pipe is jammed and will not drop correctly from pipe box, inspect pipe box position.
If pipe box appears to be improperly aligned with discharge chute, return to operator’s station and
move pipe box slightly until mechanical pointer is in center of cutout (see page 141) for active column.
• If drill pipe is bent, remove it from pipe box and discard.
Rotate Drill Pipe Order
Rotating the lead pipe to the back of the string is a manual process. Rotate drill pipes in the drill string
weekly.
Guidelines
• Rotate only as many columns as used on the longest bore of the week. For example, if the longest
bore was 320’ (98 m), then only rotate the four columns used.
• Plan to rotate the pipes during the longest bore of the week.
• The lead pipe can only be rotated to the very back of the drill string when a bore requires at least one
pipe from last (inner) column.
Procedure
1. During pullback, move to next column when only seven pipes are in last column from which pipe was
removed during drilling.
2. Follow regular pullback procedure to load pipe into all remaining columns.
3. When lead pipe is in grippers, disconnect from both ends of lead pipe and retract shuttles fully.
4. Follow procedure for removing a single pipe. See page 145.
5. Turn off engine.
6. Remove pins across top of pipe box.
7. Remove lead pipe from auxiliary shuttles and place into vacant slot in pipe box.
8. Install pins over drill pipe.
9. Close both auxiliary pipe loaders.
NOTICE: If neither of the causes and solutions outlined above correct the misaligned or jammed pipe,
contact your Ditch Witch dealer for assistance.
- JT2020 Mach 1 1
- Overview 2
- Serial Number Location 3
- Intended Use 4
- Equipment Modification 4
- Unit Components 5
- Operator Orientation 6
- About This Manual 6
- Foreword 8
- JT2020 Mach 1 (Tier 3) 9
- Operator’s Manual 9
- Contents 10
- Chapter Contents 12
- Guidelines 13
- Safety Alert Classifications 14
- Safety Alerts 15
- Emergency Procedures 18
- If a Gas Line is Damaged 20
- If Machine Catches on Fire 21
- Controls 22
- Set-Up Console 23
- Left Control Console 28
- Drilling/Operation Controls 32
- Gauge Cluster 35
- Right Control Console 43
- Anchoring System Console 45
- Seat/Armrest 47
- Engine Compartment Controls 50
- Indicators 54
- Operation Overview 60
- Planning 61
- Setting Up at Jobsite 61
- Drilling 62
- Backreaming 63
- Leaving Jobsite 63
- Storing Equipment 63
- Gather Information 66
- Inspect Site 67
- Select Start and End Points 68
- Classify Jobsite 69
- Apply Precautions 70
- Other Jobsite Precautions 71
- Plan Bore Path 72
- Recommended Bend Limits 73
- Pipe-By-Pipe Bend Limits 74
- Entry Pitch 75
- Minimum Setback 75
- Minimum Depth 76
- Bore Path Calculator 76
- Prepare Jobsite 77
- Check Supplies 78
- Prepare Equipment 79
- Assemble Accessories 79
- Start Unit 81
- Steer Unit 81
- Shut Down Unit 82
- Transport 84
- With Tiedown Kit 86
- Without Tiedown Kit 86
- Tie Down 87
- Transport - 87 88
- Conduct a Bore 92
- Position Equipment 94
- Connect Fluid System 94
- Start System 94
- Prime Drilling Fluid Pump 95
- Operate Carriage Control 96
- Clamp Pipe 97
- Assemble Drill String 98
- Attach Transition Sub 99
- Connect Drill Pipe 100
- Drill First Pipe 101
- Add Pipe 103
- Correct Direction 105
- Record Bore Path 106
- Surface Drill Head 107
- Assemble Backream String 108
- Remove Pipe 110
- Remove Pullback Device 112
- Systems and Equipment 114
- Anchor System 116
- Electric Strike System 117
- Assemble Voltage Detector 118
- Test Strike System 118
- Troubleshoot Strike System 119
- Use Electric Strike Simulator 121
- Voltage Test 122
- Drilling Fluid 123
- Bentonite 124
- Mixtures 124
- Basic Fluid Recipes 125
- Drilling Fluid Requirements 126
- Funnel Viscosity 127
- Tracker Control 128
- Disable Thrust and Rotation 130
- Downhole Tools 131
- Beacon Housings 132
- Backreamers 133
- Backream Fluid Requirements 134
- Quick Wrench 136
- Drill Pipe 138
- Use Caps and Plugs 139
- Replace Worn Saver Sub 139
- Rotate Pipe Order 139
- Use Drill Pipe Correctly 140
- Do not Overwork the Pipe 141
- Pipeloader 142
- Rotate Drill Pipe Order 143
- Add/Remove Single Pipe 144
- Add Single Pipe 145
- Remove Single Pipe 146
- Cruise Control 147
- Interpret Diagnostic Codes 148
- Review Modes 149
- Diagnostic Codes 150
- Complete the Job 154
- Antifreeze Drilling Unit 155
- Reclaim Antifreeze 156
- Rinse Equipment 157
- Disconnect 158
- Stow Tools 158
- Service Precautions 161
- Working Under Drilling Unit 162
- Opening/Closing Front Hood 163
- Approved Fuel 165
- Approved Coolant 165
- Startup/10 Hour 166
- Check Engine Oil Level 167
- Check Engine Coolant Level 168
- Check Hydraulic Hoses 169
- Check Hydraulic Fluid Level 170
- Check Fluid Pump Oil Level 170
- Test Control Switches 171
- Check Pipe Lube Applicator 172
- 50 Hour 174
- Check Radiator 175
- Inspect Thrust Rollers 177
- 250 Hour 178
- 500 Hour 179
- Check Battery 180
- 750 Hour 181
- 1000 Hour 182
- Change Rotation Gearbox Oil 184
- 2000 Hour 185
- As Needed 186
- Drilling Unit 187
- Check Pipeloader Inserts 188
- Check Fluid Pump Ball Valve 189
- Change/Adjust Drive Belt 190
- Change Air Filter 191
- Check Saver Sub 192
- Replace Fuses 192
- Specifications 194
- Procedure 198
- Resources 198
- Warranty 199
- Service Record 202
- Service Performed Date Hours 203
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