Ditch-witch JT2020 Manuel d'utilisateur Page 125
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Systems and Equipment - 124 JT2020 Mach 1 Operator’s Manual
Drilling Fluid
CMW
Basic Fluid Recipes
Soil type Mixture/100 gal (378 L) of water Notes
fine sand 35 lb (16 kg) Bore-Gel
coarse sand 35 lb (16 kg) Bore-Gel
.5 lb (225 g) No-Sag
Add .5 lb (225 g) of Quik-Trol for
additional filtrate control
fine sand below water
table
40 lb (18 kg) Bore-Gel
.75 lb (340 g) Quik-Trol
Add .5 - 1 gal (2-4 L) of Dinomul in high
torque situations
coarse sand below
water table
40 lb (18 kg) Bore-Gel
.75 lb (340 g) Quik-Trol
.75 lb (340 g) No-Sag
Add .5 - 1 gal (2-4 L) of Dinomul in high
torque situations
gravel 50 lb (23 kg) Bore-Gel
.75 lb (340 g) Quik-Trol
.75 lb (340 g) No-Sag
Add .5 lb (225 g) of Barolift to reduce loss
of returns
cobble 50 lb (23 kg) Bore-Gel
.75 lb (340 g) Quik-Trol
.75 lb (340 g) No-Sag
Add .5 lb (225 g) of Barolift to reduce loss
of returns
sand, gravel, clay or
shale
35 - 40 lb (16-18 kg) Bore-Gel
.5 pt (235 mL) EZ-Mud
.5 gal (2 L) Con-Det
Vary mixture according to percentage of
sand and clay
clay .5 lb (225 g) Poly Bore
.5 gal (2 L) Con-Det
Flow rate should be 3-5 parts fluid to 1
part soil. May use .25 - .5 gal (1-2 L) of
Penetrol instead of Con-Det
swelling/sticky clay .75 - 1 lb (340-450 g) Poly Bore
.5 - 1 gal (2-4 L) Con-Det
Flow rate should be 3-5 parts fluid to 1
part soil. May use .25 - .5 gal (1-2 L) of
Penetrol instead of Con-Det
solid rock (shale) 40 lb (18 kg) Bore-Gel Use .5 pt (235 mL) of No Sag for large
diameter or longer bores
solid rock (other than
shale)
40 - 50 lb (18-23 kg) Bore-Gel Use .5 pt (235 mL) of EZ-Mud in reactive
shales
rock/clay mixture 40 - 50 lb (18-23 kg) Bore-Gel
.5 pt (235 mL) EZ-Mud
rock/sand mixture 40 - 50 lb (18-23 kg) Bore-Gel Use .5 pt (235 mL) of No Sag for large
diameter or longer bores
fractured rock 50 lb (23 kg) Bore-Gel
.5 - 1lb (225-450 g) No-Sag
Use .5 lb (225 g) of Barolift to reduce fluid
loss to formation
- 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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