The bottom right light on the Ditch Witch JT1220 Mach 1 panel indicates the rear pipe box status. If the active pipe column contains pipe, the light should be on. If the active pipe column does not contain pipe, the light should be off.

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Summary of Contents for Ditch Witch JT1220 Mach 1

Page 1 JT1220 Mach 1 Operator’s Manual ® Issue 2.1 054- 114...
Page 2: Overview
JT1220 Mach 1 Operator’s Manual Overview - 1 Overview Chapter Contents Serial Number Location ..... . 2 Intended Use ....... 3 Unit Components .
Page 3 JT1220 Mach 1 Operator’s Manual Overview - 2 Serial Number Location Serial Number Location Record serial numbers and date of purchase in spaces provided. Drilling unit serial number is located as shown. Item date of manufacture date of purchase drilling unit serial number...
Page 4 0° to 115°F (-18° to 46°C). Use in any other way is considered contrary to the intended use. The JT1220 Mach 1 can be used with Ditch Witch drilling fluid units and Ditch Witch Subsite locating equipment. It should be operated, serviced, and repaired only by persons familiar with its particular characteristics and acquainted with the relevant safety procedures.
Page 5 JT1220 Mach 1 Operator’s Manual Overview - 4 Operator Orientation Operator Orientation IMPORTANT: Top view of unit is shown. 1. Front of unit 2. Right side of unit 3. Rear of unit 4. Left side of unit About This Manual This manual contains information for the proper use of this machine.
Page 6: Foreword
If you sell your equipment, be sure to give this manual to the new owner. If you need a replacement copy, contact your Ditch Witch dealer. If you need assistance in locating a dealer, visit our website at www.ditchwitch.com or write to the following address: The Charles Machine Works, Inc.
Page 7 Copyright 2003, 2004, 2005, 2006 by The Charles Machine Works, Inc. , Ditch Witch, CMW, AutoCrowd, Modularmatic, Jet Trac, Roto Witch, Subsite, Fluid Miser, Perma-Soil, Power Pipe, Super Witch, Super Witch II, Pierce Airrow, The Underground, and The Underground Authority Worldwide are registered trademarks of The Charles Machine Works, Inc.
Page 8: Table Of Contents
JT1220 Mach 1 Operator’s Manual Contents - 7 Contents Overview machine serial number, information about the type of work this machine is designed to perform, basic machine components, and how to use this manual Foreword part number, revision level, and publication date of this manual, and factory contact...
Page 9 JT1220 Mach 1 Operator’s Manual Contents - 8 Specifications machine specifications including weights, measurements, power ratings, and fluid capacities Support the warranty policy for this machine, and procedures for obtaining warranty consideration and training Service Record a record of major service performed on the machine...
Page 10: Safety
JT1220 Mach 1 Operator’s Manual Safety - 9 Safety Chapter Contents Guidelines ....... . 10 Safety Alert Classifications .
Page 11: Guidelines
Use equipment carefully. Stop operation and investigate anything that does not look or feel right. • Do not operate unit where flammable gas is present. • Contact your Ditch Witch dealer if you have any question about operation, maintenance, or equipment use.
Page 12: Safety Alert Classifications
JT1220 Mach 1 Operator’s Manual Safety - 11 Safety Alert Classifications Safety Alert Classifications These classifications and the icons defined on the following pages work together to alert you to situations which could be harmful to you, jobsite bystanders or your equipment. When you see these words and icons in the book or on the machine, carefully read and follow all instructions.
Page 13: Safety Alerts
JT1220 Mach 1 Operator’s Manual Safety - 12 Safety Alerts Safety Alerts Turning shaft will kill you or crush arm or leg. Stay away. Electric shock. Contacting electric lines will cause death or serious injury. Know location of lines and stay away.
Page 14 JT1220 Mach 1 Operator’s Manual Safety - 13 Safety Alerts Explosion possible. Serious injury or equipment damage could occur. Follow directions carefully. Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. Improper control function could cause death or serious injury. If control does not work as described in instructions, stop machine and have it serviced.
Page 15 JT1220 Mach 1 Operator’s Manual Safety - 14 Safety Alerts Hot pressurized cooling system fluid could cause serious burns. Allow to cool before servicing. Flying objects may cause injury. Wear hard hat and safety glasses. Hot parts may cause burns. Do not touch until cool.
Page 16: Emergency Procedures
JT1220 Mach 1 Operator’s Manual Safety - 15 Emergency Procedures Emergency Procedures Before operating any equipment, review emergency procedures and check that all safety precautions have been taken. EMERGENCY SHUTDOWN - Turn ignition switch to stop position or push remote engine stop button (if equipped).
Page 17: If An Electric Line Is Damaged
JT1220 Mach 1 Operator’s Manual Safety - 16 Emergency Procedures If an Electric Line is Damaged If you suspect an electric line has been damaged and you are on drilling unit or bonded ground mats, DO NOT MOVE. Remain on drilling machine or mats and take the following actions. The order and degree of action will depend on the situation.
Page 18: If A Gas Line Is Damaged
JT1220 Mach 1 Operator’s Manual Safety - 17 Emergency Procedures If a Gas Line is Damaged If you suspect a gas line has been damaged, take the following actions. The order and degree of action will depend on the situation.
Page 19 JT1220 Mach 1 Operator’s Manual Safety - 18 Emergency Procedures...
Page 20: Controls
ESID ........46 Ditch Witch Electronics 750/752 Display ..49 •...
Page 21: Set-Up Console
JT1220 Mach 1 Operator’s Manual Controls - 20 Set-Up Console Set-Up Console 1. Tracker control key 5. Right stabilizer control 2. Ignition switch 6. Frame tilt control 3. Left track switch 7. Left stabilizer control 4. Right track switch Item...
Page 22 JT1220 Mach 1 Operator’s Manual Controls - 21 Set-Up Console Item Description Notes 2. Ignition switch To start engine, insert key and IMPORTANT: turn clockwise. • Restart engine with ignition switch To stop engine, turn key after it has been turned off with counterclockwise.
Page 23 JT1220 Mach 1 Operator’s Manual Controls - 22 Set-Up Console Item Description Notes 7. Left stabilizer control To raise, pull up. IMPORTANT: Lower left and right stabilizers to the ground to stabilize To lower, push down. unit and then adjust for side-to-side stability.
Page 24: Tethered Ground Drive Controller
JT1220 Mach 1 Operator’s Manual Controls - 23 Tethered Ground Drive Controller Tethered Ground Drive Controller j10om016h.eps 1. Speed/direction control 4. Operator presence switch 2. Power mode switch 5. Throttle switch 3. Remote engine stop Item Description Notes 1. Speed/direction control To move forward, push.
Page 25 JT1220 Mach 1 Operator’s Manual Controls - 24 Tethered Ground Drive Controller Item Description Notes 2. Power mode switch To select normal driving mode (high), push. To select loading and unloading mode (low), pull. To disable controller, return to center.
Page 26: Left Control Console
JT1220 Mach 1 Operator’s Manual Controls - 25 Left Control Console Left Control Console Pipeloading Controls 1. Add pipe/manual/remove pipe switch 5. Pipe lift switch 2. Set/Resume switch 6. Pipe shuttle switch 3. Pipe box switch 7. Pipe gripper switch 4.
Page 27 JT1220 Mach 1 Operator’s Manual Controls - 26 Left Control Console Item Description Notes 2. Set/resume switch To resume operation or See “Cruise Control” on page 140. increase operation levels, press top. RESUME To set operating conditions or reduce operation levels, press bottom.
Page 28 JT1220 Mach 1 Operator’s Manual Controls - 27 Left Control Console Item Description Notes 6. Pipe shuttle switch To move toward pipe box, press top. To move toward spindle, press bottom. 7. Pipe gripper switch To close, press top. To open, press bottom.
Page 29: Drilling/Operation Controls
JT1220 Mach 1 Operator’s Manual Controls - 28 Left Control Console Drilling/Operation Controls 1. Engine throttle switch 5. Remote engine start switch 2. Drilling fluid pressure gauge 6. Console/Work light switch 3. Thrust pressure gauge 7. Fluid pump indicator 4. Rotation pressure gauge 8.
Page 30 JT1220 Mach 1 Operator’s Manual Controls - 29 Left Control Console Item Description Notes 2. Drilling fluid pressure Displays drilling fluid pressure gauge supplied by drilling fluid pump. c00ic157h.eps 3. Thrust pressure gauge Displays hydraulic fluid pressure to thrust motor during thrust and pullback.
Page 31 JT1220 Mach 1 Operator’s Manual Controls - 30 Left Control Console Item Description Notes 6. Console/Work light To turn on, press top. switch To turn off, press bottom. c00ic151h.eps 7. Fluid pump indicator If fluid pump is on, light should be on.
Page 32: Gauge Cluster
JT1220 Mach 1 Operator’s Manual Controls - 31 Gauge Cluster Gauge Cluster Unit Status Indicators j10om010h.eps 1. Water in fuel indicator 5. Coolant high temperature indicator 2. Battery charging indicator 6. Engine oil pressure indicator 3. Hydraulic filter service indicator 7.
Page 33 JT1220 Mach 1 Operator’s Manual Controls - 32 Gauge Cluster Item Description Notes 2. Battery charging Indicates battery is not indicator charging. 3. Hydraulic filter service Indicates hydraulic fluid filter Change filter when indicator lights indicator needs replacing. continuously and as indicated on page 168.
Page 34 JT1220 Mach 1 Operator’s Manual Controls - 33 Gauge Cluster Item Description Notes 6. Engine oil pressure Indicates engine oil pressure IMPORTANT: Alarms will sound when indicator is too low. engine oil pressure is too low. Stop engine and check oil level.
Page 35: Pipeloading Status Indicators
JT1220 Mach 1 Operator’s Manual Controls - 34 Gauge Cluster Pipeloading Status Indicators 1. Control cycle light (green) 5. Shuttle home status indicator 2. Rear stop status indicator 6. Front pipe box status indicator 3. Carriage home status indicator 7. Rear pipe box status indicator 4.
Page 36 JT1220 Mach 1 Operator’s Manual Controls - 35 Gauge Cluster Item Description Notes 2. Rear stop status If carriage is at very back of indicator drill frame, light should be on. If carriage is away from very back of drill frame, light should be off.
Page 37 JT1220 Mach 1 Operator’s Manual Controls - 36 Gauge Cluster Item Description Notes 6. Front pipe box status If active pipe column contains IMPORTANT: indicator pipe, light should be on. • Check pipe box status lights to If active pipe column does not...
Page 38: Gauges
JT1220 Mach 1 Operator’s Manual Controls - 37 Gauge Cluster Gauges j10om009h.eps 1. Voltmeter 4. Engine oil pressure gauge 2. Tachometer/Hourmeter 5. Fuel gauge 3. Engine coolant temperature gauge Item Description Notes 1. Voltmeter Displays system voltage. Should show 13 to 14 volts with...
Page 39 JT1220 Mach 1 Operator’s Manual Controls - 38 Gauge Cluster Item Description Notes 2. Tachometer/Hourmeter Displays engine rpm. Full load reading should be 2200 rpm. Use these times to schedule service. Displays engine operating time. 3. Engine coolant Displays engine coolant...
Page 40: Right Control Console
JT1220 Mach 1 Operator’s Manual Controls - 39 Right Control Console Right Control Console 1. Drilling fluid pump switch 4. Drilling fluid quick fill switch 2. Dual speed carriage control 5. Remote engine stop switch 3. Carriage control Item Description Notes 1.
Page 41 JT1220 Mach 1 Operator’s Manual Controls - 40 Right Control Console Item Description Notes 2. Dual speed carriage To engage high carriage Use during bore or pullback when no control travel speed, push and hold. pipe is in spindle to save time.
Page 42: Anchoring System Console
JT1220 Mach 1 Operator’s Manual Controls - 41 Anchoring System Console Anchoring System Console j10om015h.eps 1. Left rotation control 3. Right rotation control 2. Left thrust control 4. Right thrust control Item Description Notes 1. Left rotation control To drive anchor, push down.
Page 43 JT1220 Mach 1 Operator’s Manual Controls - 42 Anchoring System Console Item Description Notes 2. Left thrust control To move anchor down, push IMPORTANT: Stand on platform when down. operating anchor controls. To move anchor up, pull up. 3. Right rotation control To drive anchor, push down.
Page 44: Seat/Armrest
JT1220 Mach 1 Operator’s Manual Controls - 43 Seat/Armrest Seat/Armrest 1. Armrest adjustment 3. Seat slide control 2. Seat recline control Item Description Notes 1. Armrest adjustment To adjust armrest position, unscrew knob, move armrest to new position, and screw knob in.
Page 45 JT1220 Mach 1 Operator’s Manual Controls - 44 Seat/Armrest Item Description Notes 3. Seat slide control To slide forward or backward, move left. To lock seat in position, move right.
Page 46: Battery
JT1220 Mach 1 Operator’s Manual Controls - 45 Battery Battery 1. Battery disconnect switch Item Description Notes 1. Battery disconnect To connect, move left. switch To disconnect, move right.
Page 47: Esid
JT1220 Mach 1 Operator’s Manual Controls - 46 ESID ESID j07om042h.eps 1. Alphanumeric display 5. Current problem indicator 2. Strike indicator 6. OK indicator 3. Alarm interrupt button 7. Electrical power supply indicator 4. Voltage problem indicator 8. Self test button...
Page 48 JT1220 Mach 1 Operator’s Manual Controls - 47 ESID Item Description Notes 3. Alarm interrupt button To turn off strike alarm at drilling unit, press. 4. Voltage problem Blinking red light indicates a See “Troubleshoot Strike System” on indicator voltage indicator problem.
Page 49 JT1220 Mach 1 Operator’s Manual Controls - 48 ESID Item Description Notes 7. Electrical power supply Green light means control indicator box has sufficient electrical power for operation. Strike system is ready to operate if OK indicator is also 8. Self test button To start manual self test, Checks all systems and circuits.
Page 50: Ditch Witch Electronics 750/752 Display
JT1220 Mach 1 Operator’s Manual Controls - 49 Ditch Witch Electronics 750/752 Display Ditch Witch Electronics 750/752 Display Indicators 1. Beacon temperature display 5. Depth estimate 2. Pitch/slope indicator and percentage indicator 6. Display battery status indicator 3. Roll indicator 7.
Page 51 JT1220 Mach 1 Operator’s Manual Controls - 50 Ditch Witch Electronics 750/752 Display Item Description Notes 2. Pitch/slope indicator Indicates pitch beacon Internal: shows pipe label and stored and percentage percent of grade. pitch. indicator External: shows desired pitch. 3. Roll indicator Indicates beacon roll angle.
Page 52 JT1220 Mach 1 Operator’s Manual Controls - 51 Ditch Witch Electronics 750/752 Display Item Description Notes 6. Display battery status Indicates display power from If all five bars are not showing, check indicator drilling unit. display power connections. 7. Beacon battery status Indicates beacon battery See beacon instruction sheet.
Page 53: Controls
JT1220 Mach 1 Operator’s Manual Controls - 52 Ditch Witch Electronics 750/752 Display Controls 1. Delete button 4. Roll stop button 2. On/Off button 5. Recall button 3. Channel select button 6. Store button IMPORTANT: Some items operate differently depending where data is being saved. Internal refers to pipe data being saved to 750 Display memory.
Page 54 JT1220 Mach 1 Operator’s Manual Controls - 53 Ditch Witch Electronics 750/752 Display Item Description Notes 2. On/Off button To turn on, press. To turn off, press again. 3. Channel select button To display current channel, Unit defaults to last channel used press and release.
Page 55 JT1220 Mach 1 Operator’s Manual Controls - 54 Ditch Witch Electronics 750/752 Display Item Description Notes 6. Store button To display serial number, Pipe number will appear in numeric press and hold while pressing display when data is stored. on/off button.
Page 56: Operation Overview
JT1220 Mach 1 Operator’s Manual Operation Overview - 55 Operation Overview Chapter Contents Planning........56 Setting Up at Jobsite .
Page 57: Planning
JT1220 Mach 1 Operator’s Manual Operation Overview - 56 Planning Planning 1. Gather information about jobsite. See page 61. 2. Inspect jobsite. See page 62. 3. Classify jobsite. See page 64. 4. Plan bore path. See page 66. 5. Check supplies and prepare equipment. See page 72.
Page 58: Drilling
JT1220 Mach 1 Operator’s Manual Operation Overview - 57 Drilling Drilling 1. Start system. See page 90. 2. Prime drilling fluid pump. See page 90. 3. Engage tracker control if desired. See page 121. 4. Drill first pipe. See page 95.
Page 59: Backreaming
• Keep all bends as gradual as possible. • Drilling fluid quality is a key factor in backreaming success. Contact your Ditch Witch dealer for information on testing water, selecting additives, and mixing drilling fluid. • Backreaming requires more fluid than drilling. Make sure enough fluid is used.
Page 60: Prepare
JT1220 Mach 1 Operator’s Manual Prepare - 59 Prepare Chapter Contents Gather Information ......61 •...
Page 61: Prepare
JT1220 Mach 1 Operator’s Manual Prepare - 60 Prepare Jobsite ......71 •...
Page 62: Gather Information
JT1220 Mach 1 Operator’s Manual Prepare - 61 Gather Information Gather Information A successful job begins before the bore. The first step in planning is reviewing information already available about the job and jobsite. Review Job Plan Review blueprints or other plans and make sure you have taken bore enlargement during backreaming and pullback into account.
Page 63: Inspect Site
JT1220 Mach 1 Operator’s Manual Prepare - 62 Inspect Site Inspect Site Inspect jobsite before transporting equipment. Check for the following: • overall grade or slope • changes in elevation such as hills or open trenches • obstacles such as buildings, railroad crossings, or streams •...
Page 64: Select Start And End Points
JT1220 Mach 1 Operator’s Manual Prepare - 63 Inspect Site Select Start and End Points Select one end to use as a starting point. Consider the following when selecting a starting point: Slope Fluid system should be parked on a level site. Consider how slope will affect drilling unit setup, bending pipe, and fluid flow out of hole.
Page 65: Classify Jobsite
JT1220 Mach 1 Operator’s Manual Prepare - 64 Classify Jobsite Classify Jobsite Inspect Jobsite • Follow U.S. Department of Labor regulations on excavating and trenching (Part 1926, Subpart P) and other similar regulations. • Contact One-Call (888-258-0808) and any utility companies which do not subscribe to One-Call.
Page 66: Apply Precautions
JT1220 Mach 1 Operator’s Manual Prepare - 65 Classify Jobsite Apply Precautions Once classified, precautions appropriate for jobsite must be taken. Electric Jobsite Precautions In addition to using a directional drilling system with an electric strike system, use one or both of these methods.
Page 67: Plan Bore Path
Plan Bore Path Plan the bore path, from entry to end, before drilling begins. The Ditch Witch Subsite Trac Management System Plus is available for planning your bore path. This special software can be run in the field using a ®...
Page 68: Recommended Bend Limits
Plan Bore Path Recommended Bend Limits Ditch Witch drill pipes are designed to bend slightly during operation. Slight bending allows for steering and correcting direction. Bending beyond recommended limits will cause damage that might not be visible. This damage adds up and will later lead to sudden drill pipe failure.
Page 69 JT1220 Mach 1 Operator’s Manual Prepare - 68 Plan Bore Path Pipe-By-Pipe Bend Limits Pipe Forward (B) Deflection (A) Pipe Forward (B) Deflection (A) 10 ft 0 in (3.0 m) 0 ft 6 in (0.1 m) 85 ft 6 in (26.1 m) 44 ft 1 in (13.4 m)
Page 70: Entry Pitch
JT1220 Mach 1 Operator’s Manual Prepare - 69 Plan Bore Path Entry Pitch Entry pitch is the slope of the drill frame compared with the slope of the ground. Determine entry pitch one of two ways: 1. With Pitch Beacon •...
Page 71: Minimum Depth
JT1220 Mach 1 Operator’s Manual Prepare - 70 Plan Bore Path Minimum Depth Because you must bend pipe gradually, entry pitch and bend limits determine how deep the pipe will be when it becomes horizontal. This is called the minimum depth.
Page 72: Prepare Jobsite
JT1220 Mach 1 Operator’s Manual Prepare - 71 Prepare Jobsite Prepare Jobsite Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. NOTICE: • If jobsite classification is in question or if the possibility of unmarked electric utilities exists, classify jobsite as electric.
Page 73: Check Supplies And Prepare Equipment
JT1220 Mach 1 Operator’s Manual Prepare - 72 Check Supplies and Prepare Equipment Check Supplies and Prepare Equipment Check Supplies • receiver/transmitter or tracker with spare batteries • beacons with new and spare batteries • two-way radios with new and spare batteries •...
Page 74: Prepare Equipment
JT1220 Mach 1 Operator’s Manual Prepare - 73 Check Supplies and Prepare Equipment Prepare Equipment Fluid Levels • fuel • hydraulic fluid • engine coolant • battery charge • engine oil Condition and Function • filters (air, oil, hydraulic) •...
Page 75 JT1220 Mach 1 Operator’s Manual Prepare - 74 Check Supplies and Prepare Equipment...
Page 76: Drive
JT1220 Mach 1 Operator’s Manual Drive - 75 Drive Chapter Contents Start Unit ....... . . 76 Steer Unit .
Page 77 JT1220 Mach 1 Operator’s Manual Drive - 76 Start Unit Start Unit 1. Insert key. 2. Turn key clockwise. See page 21 for more information. 3. Run engine at low throttle for 5 minutes. Steer Unit To steer drilling unit while using tethered ground drive controller, follow instructions for type of steering desired.
Page 78: Transport
JT1220 Mach 1 Operator’s Manual Transport - 77 Transport Chapter Contents Lift ........78 •...
Page 79: Lift
JT1220 Mach 1 Operator’s Manual Transport - 78 Lift Lift Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. Points Lifting points are identified by lifting decals. Lifting at other points is unsafe...
Page 80: Procedure
JT1220 Mach 1 Operator’s Manual Transport - 79 Lift Procedure Use a crane capable of supporting the equipment's size and weight. See “Specifications” on page 185 or measure and weigh equipment before lifting. 1. Attach chains to four lift points (two on each side of drilling unit).
Page 81: Haul
JT1220 Mach 1 Operator’s Manual Transport - 80 Haul Haul Inspect Trailer • Check hitch for wear and cracks. Lubricate if needed. • Check u-bolts and axles for wear. Replace if needed. • Check fasteners for wear and tightness. Replace or tighten if needed.
Page 82: Load
JT1220 Mach 1 Operator’s Manual Transport - 81 Haul Load Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. NOTICE: • Load and unload trailer on level ground.
Page 83: Tie Down
JT1220 Mach 1 Operator’s Manual Transport - 82 Haul Tie Down Points Tiedown points are identified by tiedown decals. Securing to trailer at other points is unsafe and can damage machinery. Procedure Incorrect procedures could result in death, injury, or property damage.
Page 84 JT1220 Mach 1 Operator’s Manual Transport - 83 Haul Without Tiedown Kit Loop tiedowns around unit at tiedown points. Make sure tiedowns are tight before transporting.
Page 85: Unload
JT1220 Mach 1 Operator’s Manual Transport - 84 Haul Unload Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. NOTICE: • Load and unload trailer on level ground.
Page 86: Tow
JT1220 Mach 1 Operator’s Manual Transport - 85 Under normal conditions, drilling unit should not be towed. If unit breaks down and towing is necessary: • Attach chains to indicated tow points facing towing vehicle. • Open bypass valves. •...
Page 87 JT1220 Mach 1 Operator’s Manual Transport - 86 To open selector valves for towing, loosen jam nut and tighten valve screw (shown) until it is fully threaded. To close selector valves and return to normal operation, unthread valve screw and tighten jam nut.
Page 88: Conduct A Bore
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 87 Conduct a Bore Chapter Contents Position Equipment ......89 Connect Fluid System .
Page 89 JT1220 Mach 1 Operator’s Manual Conduct a Bore - 88 Record Bore Path ......100 Surface Drill Head ......101 Assemble Backream String .
Page 90: Position Equipment
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 89 Position Equipment Position Equipment 1. Review bore plan and select drilling unit position and fluid unit position. See “Select Start and End Points” on page 63. 2. Move equipment into selected positions.
Page 91: Start System
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 90 Start System Start System 1. Start drilling unit and remote fluid unit. Allow both engines to warm up. IMPORTANT: Ensure that mixture of drilling fluid matches drilling conditions. 2. Enable tracker control mode if desired. See “Tracker Control” on page 121.
Page 92: Operate Carriage Control
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 91 Operate Carriage Control Operate Carriage Control The thrust/rotation control has eight positions which allow the four basic functions to be combined. The chart below summarizes functions that occur when control is put at a combined position. Operator must be in seat for control to function.
Page 93: Clamp Pipe
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 92 Clamp Pipe Clamp Pipe Turning shaft can kill you or crush arm or leg. Stay away. NOTICE: Clamping anywhere else on the pipe will weaken the pipe. Pipe can later break, even when operating under normal loads.
Page 94: Assemble Drill String
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 93 Assemble Drill String Assemble Drill String Prepare Beacon Housing 1. Select nozzles and bit. IMPORTANT: A variety of nozzles and bits are available to suit your particular job conditions. See “Downhole Tools” on page 124 for more information, or contact your Ditch Witch dealer.
Page 95: Connect Drill Pipe
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 94 Assemble Drill String 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 92.
Page 96: Drill First Pipe
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 95 Drill First Pipe Drill First Pipe Turning shaft can kill you or crush arm or leg. Stay away. NOTICE: • Keep everyone at least 10’ (3 m) away from turning drill string.
Page 97: Enable Automated Pipeloader System
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 96 Enable Automated Pipeloader System Enable Automated Pipeloader System Add Pipe Remove Pipe 1. Make sure pipe box is properly positioned. 1. Make sure pipe box is properly positioned. See “Shift Pipe Box” on page 135.
Page 98: Add Pipe
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 97 Add Pipe Add Pipe IMPORTANT: If gripper switch is not in the grip position when using optional pipeloader automation, grippers will open when automation is stopped and gripped pipe could be dropped. To return a dropped pipe to the drill string, see “Correct Dropped Pipe”...
Page 99 JT1220 Mach 1 Operator’s Manual Conduct a Bore - 98 Add Pipe 5. Connect pipe to saver sub. IMPORTANT: Always rotate clockwise unless breaking pipe joint. Rotating counterclockwise will unscrew joints. • Move carriage forward until saver sub meets pipe.
Page 100: Correct Direction
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 99 Correct Direction Correct Direction Correcting direction is a skill operators gain with experience and knowledge of equipment and soil conditions. These instructions cover only basic procedures. For information about specific equipment or jobsites, contact your Ditch Witch dealer.
Page 101: Drill Head Position
Subsite 750 Tracker, 750 Display, a tracking beacon, and special software. The display can store jobs in ® its memory or the system can be run in the field using a laptop computer equipped with the Windows or higher operating system. See your Ditch Witch dealer for details.
Page 102: Surface Drill Head
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 101 Surface Drill Head Surface Drill Head Moving tools will kill or injure. Shut off drill string power when anyone can be struck by moving or thrown tools. Never use pipe wrenches on drill string.
Page 103: Assemble Backream String
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 102 Assemble Backream String Assemble Backream String Turning shaft will kill you or crush arm or leg. Stay away. NOTICE: Keep everyone away from material being installed. Moving tools will kill or injure. Shut off drill string power when anyone can be struck by moving or thrown tools.
Page 104: Remove Pipe
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 103 Remove Pipe Remove Pipe IMPORTANT: If gripper switch is not in the grip position when using optional pipeloader automation, grippers will open when automation is stopped and gripped pipe could be dropped. To return a dropped pipe to the drill string, see “Correct Dropped Pipe”...
Page 105 JT1220 Mach 1 Operator’s Manual Conduct a Bore - 104 Remove Pipe 8. Break rear joint. • Engage rear wrench. • Slowly rotate spindle counterclockwise until joint is loosened. Do not fully unscrew joint. • Disengage rear wrench. • Move carriage back until front end of pipe is positioned inside front end of pipe box.
Page 106: Remove Pullback Device
JT1220 Mach 1 Operator’s Manual Conduct a Bore - 105 Remove Pullback Device Remove Pullback Device The pullback device can be removed when the last pipe is on the frame. It can also be removed when a target pit along the bore path has been reached. Remaining pipe is then pulled back and removed.
Page 107 JT1220 Mach 1 Operator’s Manual Conduct a Bore - 106 Remove Pullback Device...
Page 108: Systems And Equipment
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 107 Systems and Equipment Chapter Contents Anchor System ......109 •...
Page 109 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 108 Downhole Tools ......124 •...
Page 110: Anchor System
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 109 Anchor System Anchor System Crushing weight. If load falls or moves, it could kill or crush you. Use proper procedures and equipment or stay away. NOTICE: • Drive anchors properly before drilling.
Page 111: Electric Strike System
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 110 Electric Strike System Electric Strike System Any time you drill in an electric jobsite, electric strike system must be properly set up, tested, and used. You must wear protective boots and gloves meeting the following standards: •...
Page 112: Assemble Voltage Detector
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 111 Electric Strike System Assemble Voltage Detector 1. Drive voltage stake into ground at least 6’ (2 m) away from any part of system. 2. Clip voltage limiter to voltage stake.
Page 113: Troubleshoot Strike System
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 112 Electric Strike System Troubleshoot Strike System When strike system detects a problem, an error code will be displayed. Anytime this happens, press self test button to retest. If error code is still displayed and does not appear in this chart, have control module checked or replaced.
Page 114 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 113 Electric Strike System Problem Possible cause Possible solution Strobe light on drilling unit Improper connections with Check connections and wiring does not work during total control module harness test Defective strobe light 1.
Page 115: Use Electric Strike Simulator
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 114 Electric Strike System Problem Possible cause Possible solution EV2 code displays and Improper connections with Check cable connection on control voltage problem indicator is control module module Defective voltage limiter...
Page 116 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 115 Electric Strike System To test for current at strike levels: 1. Put two or three loops through current transformer. 2. Follow steps above to test. 3. Display should show the following: •...
Page 117: Drilling Fluid
Con-Det™ water-soluble cleaning solution (p/n 259-810) Guidelines Match drilling fluid to soil type. This chart is meant as a guideline only. See your local Ditch Witch dealer for soil conditions and drilling fluid recommendations for your area. Also see our interactive Drilling Fluid Formulator at www.ditchwitch.com.
Page 118: Bentonite
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 117 Drilling Fluid Bentonite Bentonite is a dry powder. When properly mixed with water, it forms a thin cake on bore walls, lubricating the bore, keeping it open, and holding fluid in the bore.
Page 119: Basic Fluid Recipes
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 118 Drilling Fluid 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 Add .5 lb (225 g) of Quik-Trol for .5 lb (225 g) No-Sag...
Page 120: Drilling Fluid Requirements
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 119 Drilling Fluid Drilling Fluid Requirements 1. Determine drilling conditions and choose appropriate drilling fluid mix. 2. Estimate amount of supplies needed and check availability. • Drilling fluid • Water supply. If more water than can be carried with the unit will be needed, arrange to transport additional water.
Page 121: Funnel Viscosity
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 120 Drilling Fluid Funnel Viscosity Viscosity is the measure of internal resistance of a fluid to flow; the greater the resistance, the higher the viscosity. Viscosity of drilling fluids must be controlled.
Page 122: Tracker Control
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 121 Tracker Control Tracker Control Overview Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. This mode allows the 750 Tracker operator to disable hydraulic power to drilling unit thrust and rotation.
Page 123 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 122 Tracker Control 4. Turn on 750 Tracker and check four-digit code. If codes on tracker and display match, thrust and rotation hydraulics on the drilling unit are enabled. If codes on tracker and display do not match, adjust tracker code: •...
Page 124 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 123 Tracker Control Disable Thrust and Rotation 1. When drill head enters target pit or exits the ground, turn off tracker. After 8-16 seconds, green tracker control light (shown), located on drilling unit anchoring console, will come on.
Page 125: Nozzles
Bits Selection These charts are meant as a guideline only. No one bit works well in all conditions. See your Ditch Witch dealer for soil conditions and bit recommendations for your area. Also see our interactive Downhole Tool Selector at www.ditchwitch.com.
Page 126: Beacon Housings
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 125 Downhole Tools Soil Description sandy soil sugar sand, blow sand, or other soils where sand is the predominant component soft soil sandy loam medium soil loams, loamy clays hard soil...
Page 127: Backreamers
A backreamer enlarges the hole as pipe is pulled back through the bore. No one backreamer works well in all conditions. These charts are meant as a guideline only. See your local Ditch Witch dealer for soil conditions and backreamer recommendations for your area. Also see our interactive Downhole Tool Selector at www.ditchwitch.com.
Page 128: Backream Fluid Requirements
Metric 18 L x .5 m/min = 9 L for each minute of each minute of backreaming. backreaming IMPORTANT: After you have determined how much fluid you will need, see your Ditch Witch dealer for nozzle recommendations.
Page 129 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 128 Downhole Tools Backream Fluid Requirements Backreamer/product Gal/ft Backreamer/product Gal/ft diameter diameter .5 in 13 mm 0.01 0.13 13.5 in 343 mm 7.44 92.35 1 in 25 mm 0.04 0.51 14 in 356 mm 8.00...
Page 130: Quick Wrench
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 129 Quick Wrench Quick Wrench To attach or remove downhole tools, use quick wrench to join or break the joint. Moving tools will kill or injure. Shut off drill string power when anyone can be struck by moving or thrown tools.
Page 131 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 130 Quick Wrench To Join 1. Scribe straight line across joint on both sides of separating line (A). 2. Scribe second line (B) on moveable side of joint in the opposite direction of tightening action .25” (6 mm) away from first line.
Page 132: Drill Pipe
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 131 Drill Pipe Drill Pipe Perform Regular Drill Pipe Care Precondition New Pipe Repeat this procedure three times for each piece of pipe before it is used the first time: 1. Hand-lubricate entire surface of threads and shoulders of both ends of pipe with copper base tool joint compound.
Page 133 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 132 Drill Pipe Use Caps and Plugs Before transporting in dusty conditions or prolonged storage, install caps and plugs to male and female ends of pipe and to saver sub. Replace Worn Saver Sub Because each pipe comes in contact with the saver sub, check saver sub regularly for wear.
Page 134: Use Drill Pipe Correctly
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 133 Drill Pipe Use Drill Pipe Correctly Align the Joints Always carefully align the male and female ends of pipe before screwing them together. Poor alignment can damage the threads and destroy the usefulness of the joint.
Page 135 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 134 Drill Pipe Make Up and Break Out Joints Correctly Assisted Makeup protects threads by automatically matching carriage movement speed to rotation during makeup and breakout. • To screw pipes together and fully torque joint, slowly rotate pipe until spindle stops turning and full pressure is developed.
Page 136: Pipeloader
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 135 Pipeloader Pipeloader Shift Pipe Box IMPORTANT: Lift arms must be fully raised for pipe box to move. Drilling 1. Shift pipe box when both pipe box status lights are off.
Page 137: Correct Misaligned Or Jammed Pipe
If drill pipe is bent, remove it from pipe box and discard. NOTICE: If neither of the causes and solutions outlined above correct the misaligned or jammed pipe, contact your Ditch Witch dealer for assistance. 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.
Page 138: Add/Remove Single Pipe
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 137 Pipeloader Add/Remove Single Pipe Load a single drill pipe or up to a whole column of drill pipe into an empty column of pipe box to finish bore without changing pipe boxes.
Page 139 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 138 Pipeloader Add Single Pipe 1. Place grid mats on the ground on pipe box side of drilling unit. 2. Connect mats. 3. Connect bonding cable to drilling unit (shown in inset).
Page 140 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 139 Pipeloader Remove Single Pipe Unload all drill pipe loaded with auxiliary pipe loaders. 1. Lift, rotate, and lock pipe positioning aid (3) into stowed position. 2. Ensure pipe box is positioned properly. See “Shift Pipe Box”...
Page 141: Cruise Control
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 140 Cruise Control Cruise Control During the bore, you can set the desired thrust, pullback, and rotation speeds to match ground conditions. Cruise control enables the unit to maintain these settings hands-free. You can engage, disengage, override, and resume these settings at any time.
Page 142: Override
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 141 Interpret Diagnostic Codes Override • To override settings, move joystick out of neutral and beyond current setting. Unit will increase to new setting. • To return to previous setting, release joystick.
Page 143: Review Modes
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 142 Interpret Diagnostic Codes Review Modes IMPORTANT: Do not turn off ignition. Diagnostic codes are cleared each time ignition is turned off. View All Codes View Codes Individually 1. Ensure that engine is running and no one is 1.
Page 144: Diagnostic Codes
JT1220 Mach 1 Operator’s Manual Systems and Equipment - 143 Interpret Diagnostic Codes Diagnostic Codes The following table lists the attributes of each diagnostic code. Information presented includes: code number, condition causing code to be sent, result, and level of severity.
Page 145 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 144 Interpret Diagnostic Codes Code Condition Result Severity no continuity to auxiliary dump valve add pipe or remove pipe aborted and non- code is stored essential no continuity to thrust/right track...
Page 146 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 145 Interpret Diagnostic Codes Code Condition Result Severity no continuity to pipe up switch pipe box movement is blocked and non- code is stored essential no continuity to tracker control input...
Page 147 JT1220 Mach 1 Operator’s Manual Systems and Equipment - 146 Interpret Diagnostic Codes Code Condition Result Severity undefinable diagnostic code reported code is stored non- essential...
Page 148: Complete The Job
JT1220 Mach 1 Operator’s Manual Complete the Job - 147 Complete the Job Chapter Contents Antifreeze Drilling Unit ....148 •...
Page 149 JT1220 Mach 1 Operator’s Manual Complete the Job - 148 Antifreeze Drilling Unit Antifreeze Drilling Unit Your drilling unit can be left overnight in freezing conditions by circulating a polyproplyene-based antifreeze (p/n 265-644) through optional antifreeze system before shutdown. Add Antifreeze 1.
Page 150 JT1220 Mach 1 Operator’s Manual Complete the Job - 149 Antifreeze Drilling Unit Reclaim Antifreeze 1. Connect remote fluid system. See page 89. 2. Turn on remote fluid system engine. 3. Start drilling unit and run at low throttle. 4. Move carriage to front of drill frame.

Ditch Witch JT1220 Mach 1 Operator's Manual

Table of Contents

Controls

Operation Overview

Prepare

Prepare

Gather Information

Inspect Site

Classify Jobsite

Plan Bore Path

Prepare Jobsite

Check Supplies and Prepare Equipment

Transport

Lift

Haul

Tow

Conduct a Bore

Systems and Equipment

Anchor System

Electric Strike System

Drilling Fluid

Tracker Control

Quick Wrench

Drill Pipe

Pipeloader

Cruise Control

Interpret Diagnostic Codes

Quick Links

Chapters

Need help?

Questions and answers

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Summary of Contents for Ditch Witch JT1220 Mach 1

Table of Contents