HT220 Operator’s Manual CMW® Issue 2.
HT220 Operator’s Manual Overview - 2 Overview Chapter Contents Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Equipment Modification . . . . . . . . . . . . . . . . . . . . . . 4 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 6 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .
HT220 Operator’s Manual Overview - 3 Serial Number Location Serial Number Location Record serial numbers and date of purchase in spaces provided. HT220 serial number is located as shown.
HT220 Operator’s Manual Overview - 4 Intended Use Intended Use The HT220 is a large track trencher designed dig trenches up to 24” (609 mm)wide and 96” (2.44 m) deep. The trencher’s hard metal teeth remove very hard, rocky ground and thinly crush it. The result is an even, rectangular-shaped trench ready for laying pipes or cables. The unit is designed for operation in temperatures typically experienced in earth moving and construction work environments.
HT220 Operator’s Manual Overview - 5 Unit Components Unit Components 1. engine compartment 6. trench cleaner 2. operator’s station 7. stabilizer 3. hydraulic reservoir 8. digging boom 4. fuel tank 9. trench cleaner shoe 5.
HT220 Operator’s Manual Overview - 6 Operator Orientation Operator Orientation 1. Front of unit 3. Rear of unit 2. Right of unit 4. Left of unit Operator faces the left side of the unit while operating the controls. About This Manual This manual contains information for the proper use of this machine. See Operation Overview for basic operating procedures. Cross references such as “See page 50” will direct you to detailed procedures.
Overview - 7 HT220 Operator’s Manual About This Manual CMW
HT220 Operator’s Manual Foreword - 8 Foreword This manual is an important part of your equipment. It provides safety information and operation instructions to help you use and maintain your Ditch Witch equipment. Read this manual before using your equipment. Keep it with the equipment at all times for future reference. 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.
HT220 Operator’s Manual Foreword - 9 HT220 Tier 3 Operator’s Manual Issue number 2.0/OM-09/11 Part number 053-1292 Copyright 2008, 2009, 2010, 2011 by The Charles Machine Works, Inc. , Ditch Witch, CMW, AutoCrowd, Jet Trac, Roto Witch, Subsite, Fluid Miser, Power Pipe, Super Witch, Pierce Airrow, The Underground, The Underground Authority Worldwide, and Zahn are registered trademarks of The Charles Machine Works, Inc.
HT220 Operator’s Manual Contents - 10 Contents Overview 2 Foreword 8 Safety 12 Controls 22 Operation Overview 46 Prepare 48 Drive 54 Transport 62 Trench 70 Systems and Equipment 74 Complete the Job 78 Service 80 machine serial number, information about the type of work this machine is designed to perform, basic machine components, and how to use this manual part number, revision level, and publication date of this manual, and factory contact information machine safety alerts and em
Contents - 11 HT220 Tier 3 Operator’s Manual Specifications 120 Support 97 Service Record 130 machine specifications including weights, measurements, power ratings, and fluid capacities the warranty policy for this machine, and procedures for obtaining warranty consideration and training a record of major service performed on the machine CMW
HT220 Operator’s Manual Safety - 12 Safety Chapter Contents Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Safety Alert Classifications . . . . . . . . . . . . . . . . . . 14 Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 18 • Electric Strike Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 • If an Electric Line is Damaged . . . . . . . . . . .
Safety - 13 HT220 Operator’s Manual Guidelines Guidelines Follow these guidelines before operating any jobsite equipment: • Complete proper training and read operator’s manual before using equipment. • Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to have underground utilities located before digging. Also contact any utilities that do not participate in the One-Call service.
HT220 Operator’s Manual Safety - 14 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. YOUR SAFETY IS AT STAKE. Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level means.
HT220 Operator’s Manual Safety - 15 Safety Alerts Safety Alerts away. Moving digging teeth will kill you or cut off arm or leg. Stay Electric shock. Contacting electric lines will cause death or serious injury. Know location of lines and stay away. Deadly gases. Lack of oxygen or presence of gas will cause sickness or death. Provide ventilation. Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.
HT220 Operator’s Manual Safety - 16 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. Fall possible. Riders can fall from machine and be injured or killed. Only operator is allowed on machine. Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.
HT220 Operator’s Manual Safety - 17 Safety Alerts Moving traffic - hazardous situation. Death or serious injury could result. Avoid moving vehicles, wear high visibility clothing, post appropriate warning signs. 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. protection. Exposure to high noise levels may cause hearing loss.
HT220 Operator’s Manual Safety - 18 Emergency Procedures Emergency Procedures Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. 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 emergency engine stop button (if equipped). Electric Strike Description Electric shock.
Safety - 19 HT220 Operator’s Manual Emergency Procedures If an Electric Line is Damaged If you suspect an electric line has been damaged and you are on tractor, DO NOT MOVE. Remain on tractor and take the following actions. The order and degree of action will depend upon the situation. • Warn people nearby that an electric strike has occurred. Instruct them to leave the area and contact utility. • Raise attachments and drive from immediate area. • Contact utility company to shut off power.
HT220 Operator’s Manual Safety - 20 Emergency Procedures If a Gas Line is Damaged Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark. Explosion possible. Serious injury or equipment damage could occur. Follow directions carefully. If you suspect a gas line has been damaged, take the following actions. The order and degree of action will depend on the situation. • Immediately shut off engine(s), if this can be done safely and quickly.
Safety - 21 HT220 Operator’s Manual Emergency Procedures If a Fiber Optic Cable is Damaged Do not look into cut ends of fiber optic or unidentified cable. Vision damage can occur. If Machine Catches on Fire Perform emergency shutdown procedure and then take the following actions. The order and degree of action will depend on the situation. • Immediately move battery disconnect switch (if equipped) to disconnect position.
HT220 Operator’s Manual Controls - 22 Controls Chapter Contents Center Console . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 • Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 • Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 • Trenching Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 • Gauges . . . . . . . . . . . . . . . . .
HT220 Operator’s Manual Controls - 23 Center Console Center Console Switches 1. Throttle 4. Light Switch 2. Engine Ignition Switch 5. Horn 3. Low Hydraulic Fluid Test Switch Item Description 1. Throttle To increase throttle, turn knob counterclockwise. To idle, push knob in.
HT220 Operator’s Manual Controls - 24 Center Console Item Description 2. Engine ignition switch To start engine, insert key and turn clockwise. Notes To stop engine, turn counterclockwise. 3. Low hydraulic fluid test switch To check for low hydraulic fluid, move to down position. 4. Light switch To turn on lights, move to up position. Switch is normally centered. To turn off lights, move to down position. 5. Horn To sound horn, press.
HT220 Operator’s Manual Controls - 25 Center Console Indicators 1. Maintenance indicator 6. Left track filter indicator 2. Wait to start indicator 7. Double filter indicator 3. Warning ignition “ON” indicator 8. Right track filter indicator 4. Low hydraulic fluid indicator 9. Single filter indicator 5. Air filter indicator 10. Digging filter indicator Item Description 1. Maintenance indicator Light comes on when the engine needs maintenance.
HT220 Operator’s Manual Controls - 26 Center Console Item Description 2. Wait to start indicator Light goes out when engine is ready to start. 3. Warning ignition “On” indicator Buzzer sounds when engine is not running and the ignition switch is on. 4. Low hydraulic fluid indicator Light comes on when low fluid switch is pressed and fluid is low. 5. Air filter indicator Light comes on when the air filter is dirty.
HT220 Operator’s Manual Controls - 27 Center Console Item Description 6. Left track filter indicator Light comes on when the left track filter needs replacing. 7. Double filter indicator Light comes on when the double filter needs replacing. 8. Right track filter indicator Light comes on when the right track filter needs replacing. 9. Single filter indicator Light comes on when the single filter needs replacing. 10.
HT220 Operator’s Manual Controls - 28 Center Console Trenching Controls 1. Conveyor shift control 7. Stabilizer control 2. Conveyor direction control 8. Auto stabilizer control 3. Conveyor control (truck option) 9. Boom lift control 4. Conveyor speed control (truck option) 10. Cruise control set control 5. Conveyor speed control 11. Trencher drive control 6. Trench cleaner control Item Description 1. Conveyor shift control To shift left, move to up position.
HT220 Operator’s Manual Controls - 29 Center Console Item Description 2. Conveyor direction control To dump spoil to the right, move to up position. Notes To dump spoil to the left, move to down position. 3. Conveyor direction control (truck option) To dump spoil to the right, move to up position. Optional To dump spoil to the left, move to down position. 4. Conveyor speed control (truck option) To increase conveyor belt speed, turn clockwise.
HT220 Operator’s Manual Controls - 30 Center Console Item Description 6. Trench cleaner control To raise trench cleaner, move to up position. Notes To lower trench cleaner, move to down position. 7. Stabilizer control To raise stabilizers, move to up position. To lower stabilizers, move to down position. 8. Auto stabilizer control For automatic stabilizers, move to up position. For manual stabilizers, move to down position. 9. Boom lift control To raise boom, move to up position.
HT220 Operator’s Manual Controls - 31 Center Console Item Description 11. Trencher drive control To rotate trencher forward, move up. To rotate trencher backward, move down.
HT220 Operator’s Manual Controls - 32 Center Console Gauges 1. Diagnostic display gauge 5. Fuel gauge 2. Hydraulic fluid temperature gauge 6. Trencher pressure gauge 3. Left track pressure gauge 7. Equipment system pressure gauge 4. Right track pressure gauge Item Description Notes 1. Diagnostic Display Gauge Digital display monitors engine functions. See “Top Console” on page 41.
HT220 Operator’s Manual Controls - 33 Center Console Item Description Notes 2. Hydraulic fluid temperature gauge Displays hydraulic fluid temperature. Do not exceed 190° F (88° C). Stop engine and wait until cool. 3. Left track pressure gauge Displays hydraulic fluid pressure at the left track. If pressure exceeds 5,000 PSI (344 bar), stop engine and have unit repaired. 4. Right track pressure gauge Displays hydraulic fluid pressure at the right track.
HT220 Operator’s Manual Controls - 34 Center Console Item Description Notes 6. Trencher pressure gauge Displays hydraulic fluid pressure at the trencher. If pressure exceeds 5,000 PSI (344 bar) stop engine and have unit repaired. 7. Equipment system pressure gauge Displays hydraulic system pressure. If pressure exceeds 2,500 PSI (172 bar) stop engine and have unit repaired.
HT220 Operator’s Manual Controls - 35 Center Console Drive Controls 1. Cruise control switch 6. Direction control 2. Sensitivity control 7. Radius control 3. auto - manual switch 8. Emergency engine stop 4. Ground drive speed 9. Parking brake 5. Steering control Item Description 1. Cruise control switch To position cruise control to low, move to up position. To position cruise control to medium, move to down position. To position cruise control to high, move to center position.
HT220 Operator’s Manual Controls - 36 Center Console Item Description 2. Sensitivity control To decrease sensitivity, turn left. Notes To increase sensitivity, turn right. 3. Auto - manual switch To engage cruise control, move to up position. To disengage cruise control, move to down position. 4. Ground drive speed To drive in high range, move to up position. To drive in low range, move to down position. 5. Steering control To steer machine left, move up. Detent lever is normally centered.
HT220 Operator’s Manual Controls - 37 Center Console Item Description 7. Radius control To increase pressure on the left track, turn knob to left. Notes To increase pressure on the right track, turn knob to the right. To equalize pressure, turn knob to center. 8. Emergency engine stop To stop engine, press button. To reset emergency stop, turn switch to the right. 9. Parking brake To engage brake, move to up position. To disengage brake, move to down position.
HT220 Operator’s Manual Controls - 38 Diagnostic Display Diagnostic Display 1. Enter key 3. Menu key 2. Arrow keys Item Description 1. Enter key To select the highlighted parameter on the screen, press the ENTER key.
HT220 Operator’s Manual Controls - 39 Diagnostic Display Item Description 2. Arrow keys To scroll through the screen toward the right or downward, press the Right Arrow key. To scroll through the screen toward the left or upward, press the Left Arrow key. 3. Menu key CMW To enter or exit the menu screens, press the Menu key.
HT220 Operator’s Manual Controls - 40 Seat Seat 1. Seat slide control 3. Seat belt 2. Seat swivel control Item Description 1. Seat swivel control To slide seat, move control away from seat. 2. Seat slide control To swivel seat, move control toward back of seat. 3. Seat belt To fasten, insert latch into buckle. Adjust until seat belt is low and tight. Notes To release, lift top of buckle.
HT220 Operator’s Manual Controls - 41 Top Console Top Console 1. Fan power control 7. Temperature control 2. Ext 8. Cab light switch 3. Climate control circuit breaker 9. Defrost 4. Display 10. Auto 5. Cab pressurizer switch 11. On 6. Econ 12. Off Item Description 1. Fan power control To raise the rate of air flow, press control up. To lower the rate of air flow, press control down. 2. EXT control CMW To change temperature display from Fahrenheit to or from Celsius, press.
HT220 Operator’s Manual Controls - 42 Top Console Item Description 3. Climate control circuit breaker Press to reset climate control. 4. Display Displays climate control temperature setting. 5. Cab pressurizer switch To pressurize cab, move switch up. Notes To depressurize cab, move switch down. 6. Econ To conserve energy, press once. 7. Temperature control To raise temperature, press up. To lower temperature, press down. 8.
HT220 Operator’s Manual Controls - 43 Engine Compartment Engine Compartment 1. Master disconnect (24V) 3. Coolant Delivery Valve 2. Master disconnect (0V) Item Description 1. Circuit breaker lever To connect the battery to the electrical system, rotate clockwise. To disconnect the battery from the electrical system, rotate counterclockwise. 2. Master disconnect (0V) To connect the battery to the electrical system, rotate clockwise.
HT220 Operator’s Manual Controls - 44 Engine Compartment Item Description Notes 3. Coolant delivery valve To turn heater ON, turn valve inline. Ensure that air conditioner switch is in the ‘OFF’ position before opening the heater valves. To turn heater OFF, turn valve perpendicular.
HT220 Operator’s Manual Controls - 45 Emergency Stop Emergency Stop 1. Emergency engine stop button 2. Operator alert button Item Description Notes 1. Emergency engine stop button To stop machine immediately, press button. To release the stop function, the button must be pulled “out” or twisted clockwise to the “out” position. The switches must be reset in order for the engine to start. Do not use emergency engine stop to stop engine on a regular basis. 2.
HT220 Operator’s Manual Operation Overview - 46 Operation Overview Chapter Contents Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Trenching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Leaving Jobsite. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Overview - 47 HT220 Operator’s Manual Planning Planning 1. Gather information about jobsite. See page 49. 2. Inspect jobsite. See page 50. 3. Classify jobsite. See page 51. 4. Select chain and teeth to match your soil type, if necessary. See page 75. 5. Check supplies and prepare equipment. See page 53. 6. Haul equipment to jobsite. See page 66. Trenching 1. Start unit. See page 55. 2. Position tractor and controls. See page 71. 3. Begin trenching. See page 72. 4. Complete the installation.
HT220 Operator’s Manual Prepare - 48 Prepare Chapter Contents Gather Information . . . . . . . . . . . . . . . . . . . . . . . . . 49 • Review Job Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 • Notify One-Call Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 • Arrange for Traffic Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 • Plan for Emergency Services . . . . . . . . . . . . . . .
Prepare - 49 HT220 Operator’s Manual Gather Information Gather Information A successful job begins before you dig. The first step in planning is reviewing information already available about the job and jobsite. Review Job Plan Review blueprints or other plans. Check for information about existing or planned structures, elevations, or proposed work that may be taking place at the same time.
HT220 Operator’s Manual Prepare - 50 Inspect Site Inspect Site Inspect jobsite before transporting equipment. Check for the following: • changes in elevation such as hills or other open trenches • obstacles such as buildings, railroad crossings, or streams • signs of utilities (See “Inspect Jobsite” on page 51.) • traffic • access • soil type and condition Identify Hazards Identify safety hazards and classify jobsite. See “Classify Jobsite” on page 51.
Prepare - 51 HT220 Operator’s Manual 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 your local One-Call service by dialing 811 (USA only) to have underground utilities located. A One-Call referral number, 888-258-0808, is also available for both the USA and Canada. You should also call any utility companies which do not participate in the One-Call service.
HT220 Operator’s Manual Prepare - 52 Classify Jobsite Apply Precautions Once classified, precautions appropriate for jobsite must be taken. Electric Jobsite Precautions Use one or both of these methods. • Expose line by careful hand digging or soft excavation. • Have service shut down while work is in progress. Have electric company test lines before returning them to service.
Prepare - 53 HT220 Operator’s Manual Check Supplies and Prepare Equipment Check Supplies and Prepare Equipment Supplies • fuel • keys • personal protective equipment, such as hard hat and safety glasses • digging teeth Fluid Levels • fuel • hydraulic fluid • battery • engine oil • transmission fluid Condition and Function • digging chain and teeth • fan belts • light bulbs • filters (air, oil, hydraulic) • tracks • pumps and motors • hoses and valves • signs, guards, and s
HT220 Operator’s Manual Drive - 54 Drive Chapter Contents Start Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HT220 Operator’s Manual Drive - 55 Start Unit Start Unit Before operating tractor, read engine manufacturer’s starting and operating instructions. Follow instructions for new engine break-in. Runaway possible. Machine could run over you or others. Learn how to use all controls. Start and operate only from operator’s position. Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. NOTICE: • Read operator’s manual before operating equipment.
HT220 Operator’s Manual Drive - 56 Start Unit 5. Turn ignition switch to the run position (key on, engine off). Cold start wait indicator will light. 6. When cold start wait indicator goes off, turn ignition switch all the way clockwise to start tractor. Warning alarm will sound. Indicators will light. • If engine does not start within 20 seconds, release the ignition switch. Allow starter to cool before attempting to start the unit again. • If engine does not crank, check battery disconnect.
HT220 Operator’s Manual Drive - 57 Drive Drive EMERGENCY SHUTDOWN: Press the emergency stop button to stop. General Operation 1. Verify that parking brake is disengaged. 2. Adjust throttle to about half way. 3. Adjust boom lift switch to raise boom. 4. Adjust the direction control lever to move unit forward or backward. 5. Adjust steering control lever to adjust the direction. 6. Change engine speed with throttle. Moving traffic – hazardous situation. Death or serious injury could result.
HT220 Operator’s Manual Drive - 58 Drive Safe Slope Operation Tipover possible. Machine can tip over and crush you. • Always operate with heavy end uphill. • Drive cautiously at all times. • Never jerk control levers. Use a steady even motion. • Do not park unit on slope without lowering boom to the ground, returning all controls to neutral position, shutting down unit, and applying parking brake.
Drive - 59 HT220 Operator’s Manual Shut Down Shut Down 1. Move direction control levers to the neutral position. 2. Lower boom to ground. 3. Engage parking brake. 4. Reduce engine speed to a minimum. 5. Wait five minutes for engine to cool down. 6. Turn ignition switch to STOP. 7. Turn off the air conditioner and the lights, if on. 8. If leaving the machine unattended, remove key and lock the following: cab window, door, engine compartment doors, tool compartment door and the tank locking caps.
HT220 Operator’s Manual Drive - 60 Start After Emergency Stop Start After Emergency Stop 1. Turn all panel controls in use at the moment of the emergency stop to the neutral position. 2. Turn the emergency stop push-button counterclockwise. 3. Turn the key to the start position. 4. Start the machine by following the standard procedure. See “Start Unit” on page 55.
Drive - 61 HT220 Operator’s Manual Start After Emergency Stop CMW
HT220 Operator’s Manual Transport - 62 Transport Chapter Contents Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 • Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 • Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 • Points . . . . . . . . . . . . . . . . . . . . . . . .
Transport - 63 HT220 Operator’s Manual Lift Lift Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. Points Lifting points are identified by lifting decals. Lifting at other points is unsafe and can damage machinery.
HT220 Operator’s Manual Transport - 64 Lift Procedure Tractor Use a crane capable of supporting the equipment's size and weight. See “Specifications” on page 120. Use indicated lift points (shown).
HT220 Operator’s Manual Transport - 65 Tie Down Tie Down Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. Points Tiedown points are identified by tiedown decals. Securing to trailer at other points is unsafe and can damage machinery. Procedure Attach chains at front and rear tiedown points. Make sure chains are tight before transporting unit. Lower boom and secure unit.
HT220 Operator’s Manual Transport - 66 Haul Haul Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. NOTICE: • Read trailer operator’s manual before loading or transporting your machine. Incorrectly loaded machine can slip or cause trailer sway. • Attach trailer to tow vehicle before loading or unloading. • Park, load, and unload trailer on level ground. • Check that unit and trailer do not exceed size or weight regulations.
HT220 Operator’s Manual Transport - 67 Haul 1. Fasten and adjust seat belt. 2. Start tractor. See page 56 for proper start-up procedures. 3. Raise trenching boom, but keep it low. Move ground drive speed switch to low range. 4. Release parking brake. 5. Use speed and direction controls to slowly drive unit onto trailer until tiedown position is reached. 6. Engage parking brake. 7. Lower boom to trailer bed and turn tractor off. See page 56 for proper shutdown procedures. 8.
HT220 Operator’s Manual Transport - 68 Tow Tow Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. Under normal conditions, tractor should not be towed. If tractor becomes disabled and towing is necessary: • Do not tow for more than 200 yd (180 m). • Tow at less than 3 mph (4.8 km/h). • Use maximum towing force of 1.5 times unit weight. Procedure Incorrect procedures could result in death, injury, or property damage.
Transport - 69 HT220 Operator’s Manual Tow Disconnect Brakes 1. Block tracks to immobilize unit. 2. Disconnect the hydraulic brake hoses and cap the valve to keep contaminants out. 3. Connect a tee between the two disconnected hoses to provide equal pressure to each gearbox. 4. Connect a hand pump containing hydraulic fluid to the tee. 5. Pump to 500 psi but do not exceed 500 psi. This will release the brake. Remove Ground Drive Motors 1.
HT220 Operator’s Manual Trench - 70 Trench Chapter Contents Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 • Trenching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HT220 Operator’s Manual Trench - 71 Setup Setup EMERGENCY SHUTDOWN: Press the emergency stop button to stop. Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away. Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. NOTICE: Comply with all utility notification regulations before digging. Incorrect procedures can result in death, injury, or property damage.
HT220 Operator’s Manual Trench - 72 Operation Operation Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. NOTICE: Cutting, drilling or working materials such as, concrete, sand or rock containing quartz may result in exposure to silica dust. Use water spray or other means to control dust. If workers are exposed to dust they must wear appropriate breathing protection.
HT220 Operator’s Manual Trench - 73 Operation 3. Place the chain operation control in the forward direction (or digging direction) at the desired speed. Moving digging teeth will cause death or serious injury. Stay away. NOTICE: • Ensure parking brake is engaged. • Machine might jerk when digging starts. Allow 15’ (3 m) between digging teeth and obstacle. • Keep everyone at least 15’ (5 m) from machine, attachments, and their range of movement. 4.
HT220 Operator’s Manual Systems and Equipment - 74 Systems and Equipment Chapter Contents Chain, Teeth, and Sprockets . . . . . . . . . . . . . . . . . 75 • Chain and Tooth Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 • Chain Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 • Chain Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Optional Equipment . . . . . . . . . . .
HT220 Operator’s Manual Systems and Equipment - 75 Chain, Teeth, and Sprockets Chain, Teeth, and Sprockets Chain and Tooth Maintenance • Always replace sprockets at the same time you replace the digging chain. Sprockets and chain are designed to work together. Replacing one without the other will cause premature wear of the new part. • Keep digging teeth sharp. Using dull, worn teeth will decrease production and increase shock load to other trencher components.
HT220 Operator’s Manual Systems and Equipment - 76 Chain, Teeth, and Sprockets Chain Selection These charts are meant as a guideline only. No one chain type works well in all conditions. See your Ditch Witch dealer for soil conditions and chain recommendations for your area. Ask for the latest Chain, Teeth, and Sprockets Parts Catalog.
Systems and Equipment - 77 HT220 Operator’s Manual Optional Equipment Optional Equipment See your Ditch Witch dealer for more information about the following optional equipment. Tractor Equipment Description light kit p/n 215-1191 window cover kit p/n 190-1174 Trencher Equipment Description truck conveyor p/n 140-1081 carbide bit p/n 135-1015 spade bit p/n 135-1016 trench cleaners restraint bar p/n 140-1073 4’, 6’ (1.2, 1.8 m) depth p/n 140-1074 8’ (2.4 m) depth p/n 140-1075 4’ (1.
HT220 Operator’s Manual Complete the Job - 78 Complete the Job Chapter Contents Rinse Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Stow Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Complete the Job - 79 HT220 Operator’s Manual Rinse Equipment Rinse Equipment Spray water onto equipment to remove dirt and mud. NOTICE: Do not spray water into the cab. Electrical components could be damaged. Wipe down instead. Stow Tools Make sure all tools and accessories are loaded and properly secured on trailer.
HT220 Operator’s Manual Service - 80 Service Chapter Contents Service Precautions . . . . . . . . . . . . . . . . . . . . . . . . 81 Lubrication Overview . . . . . . . . . . . . . . . . . . . . . . . 82 Recommended Lubricants/Service Key . . . . . . . 84 • Engine Oil Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 4 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 10 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HT220 Operator’s Manual Service - 81 Service Precautions Service Precautions Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly. NOTICES: • Unless otherwise instructed, all service should be performed with engine off. • Refer to engine manufacturer’s manual for engine maintenance instructions. • Before servicing equipment, lower unstowed attachments to ground. Welding Precaution NOTICE: Welding can damage electronics.
HT220 Operator’s Manual Lubrication Overview Lubrication Overview Lubrication Overview (left) Service - 82
Service - 83 HT220 Operator’s Manual Lubrication Overview Lubrication Overview (right)
HT220 Operator’s Manual Service - 84 Recommended Lubricants/Service Key Recommended Lubricants/Service Key Item Description DEO Diesel engine oil meeting API service classification CI-4 ALEA E5 and SAE viscosity recommended by engine manufacturer (SAE 15W40) MPG Multipurpose grease meeting ASTM D217 and NLGI 5 MPL Multipurpose gear oil meeting API service classification GL-5 (SAE 80W90) THF Tractor hydraulic fluid, similar to Phillips 66 HG, Mobilfluid 423, Chevron Tractor Hydraulic Fluid, Texaco
HT220 Operator’s Manual Service - 85 Recommended Lubricants/Service Key Engine Oil Selection Chart Select oil based on ambient temperature range expected before next oil change. Approved Fuel The engine is this unit is designed to run on diesel fuel. Use only high-quality fuel meeting ASTM D975 No. 2D, EN590, or equivalent. At temperatures below 32°F (0°C), winter fuel blends are acceptable. See engine operation manual for more information.
HT220 Operator’s Manual Service - 86 4 Hour 4 Hour Location Task TRENCHER Lube flywheel gearbox Lube pivot bearings Lube digging chain shaft bearing Lube Flywheel Gearbox Lube zerks with MPG every 4 hours. Lube Pivot Bearings (Left & Right) Lube zerks with MPG every 4 hours.
Service - 87 HT220 Operator’s Manual 4 Hour Lube Digging Chain Shaft Bearing Lube zerks with MPG every 4 hours.
HT220 Operator’s Manual Service - 88 10 Hour 10 Hour Location Task TRACTOR Check emergency stop Notes Lube torque post Lube cab door hinges Check engine oil level Check engine coolant level Check air filters Check cab air cleaner filters Check hydraulic fluid level Check hydraulic hoses Check gearboxes and coupler Clean cooling systems Check nuts and bolts TRENCHER Lube conveyor left and right Lube stabilizer pins left and right Check and adjust conveyor belts Check hydraulic cylinder rods Chec
Service - 89 HT220 Operator’s Manual 10 Hour Check Emergency Stop Test function of each emergency stop buttons (shown) every 10 hours. See “Start After Emergency Stop” on page 57. 1. Turn ignition switch to the on position but do not start the engine. 2. Press an emergency stop button. See “Start After Emergency Stop” on page 57. 3. Repeat process for each emergency stop button. Service machine as required. Lube Torque Post Lube zerks with MPG every 10 hours.
HT220 Operator’s Manual 10 Hour Check Engine Oil Level Check engine oil level at dipstick (1) every 10 hours. Add DEO (1) at fill as needed. Ensure that engine oil level is correct and inspect for contamination. Typical signs of oil contamination are: • oil discoloration • water in the oil Change oil and filter if contaminants are present. Check Engine Coolant level Check engine coolant level every 10 hours. Ensure that level is at the maximum level and inspect for signs of contamination.
Service - 91 HT220 Operator’s Manual 10 Hour Check Cab Air Cleaner Filters Check cab air cleaner every 10 hours. Replace as necessary. Check Hydraulic Fluid Level Inspect hydraulic fluid level every 10 hours. If the fluid level is not visible through the sight glass (2) then add fluid at fill (1) until fluid can be seen through the sight glass (2). The level must be checked when fluid is cold. Lock the tank plug after each refilling.
HT220 Operator’s Manual Service - 92 10 Hour Check Hydraulic Hoses away. Fluid or air pressure could pierce skin and cause injury or death. Stay NOTICE: Escaping pressurized fluid can cause injury or pierce skin and poison. • Before disconnecting a hydraulic line, turn engine off and operate all controls to relieve pressure. Lower, block, or support any raised component with a hoist. Cover connection with heavy cloth and loosen connector nut slightly to relieve residual pressure.
Service - 93 HT220 Operator’s Manual 10 Hour Check Gearbox and Coupler Check gearboxes every 10 hours. Inspect the flywheel gearbox (1), the two track gearboxes (2) and the engine pump drive (3) to spot possible leakages. The flywheel gearbox cases and the coupler case are all equipped with an air vent, oil level tank plug and drain plug. The track gearboxes are equipped with oil level tank plug and drain plug for inspection. Rotate the gearbox until the oil drain plug is in the lowest position.
HT220 Operator’s Manual 10 Hour Check Nuts and Bolts Check nuts and bolts every 10 hours. Check that there are no loose fasteners. If any fasteners are loose, tighten them to the correct torque specifications. IMPORTANT: Check the chain digging plates retaining screws.
Service - 95 HT220 Operator’s Manual 10 Hour Trencher Lube Conveyor (Left and Right) Lube zerks with MPG every 10 hours. Lube Stabilizer Pins (Left and Right) Lube zerks with MPG every 10 hours.
HT220 Operator’s Manual Service - 96 10 Hour Check and Adjust Conveyor Belts Check conveyor belts every 10 hours. Ensure that belt (1) is not excessively worn and is set at the proper tension. Too much tension will cause excessive friction between the belt and the side sills, performance loss and premature wear. A loose belt may cause the driving drum to slip and stop the belt movement.
Service - 97 HT220 Operator’s Manual 10 Hour Check Tail Roller Check tail roller every 10 hours. Check that the tail roller does not show excessive wear signs and that the bearings (shown) do not have any backlash. Make sure that the seals do not leak. For tail roller lubrication, see “Lube Tail Roller” on page 102. Lube Trench Cleaner Cylinder Pins Lube zerks with MPG every 10 hours. Lube Digging Boom Cylinder Pins (Right and Left) Lube zerks with MPG every 10 hours.
HT220 Operator’s Manual 10 Hour Check Digging Chain Inspect Digging Chain Inspect for excessive wear (shown) and proper tension every 10 hours. The proper limit is 2” - 2.5” (5.08 cm - 6.35 cm) sag (A) on a cold chain with baseplates installed, measured at the point of greatest sag with the boom in a horizontal position. Do not adjust chain when it is hot. Proper distance (A) is measured from the chain point that is furthest from the boom. Adjust chain tension as needed.
Service - 99 HT220 Operator’s Manual 10 Hour Check Chain Baseplates and Toothstops The machine is equipped with specific-width tooth-stop plates (1). The tooth-stop plates and pockets are provided with a hard metal coating in their easily-worn parts. This coating must always be preserved to guarantee the life of the tooth-stop pocket plates. The machine operator must take note of the hardened parts and preserve them.
HT220 Operator’s Manual 10 Hour Check Chain Sprocket Check digging chain sprocket every 10 hours. Check that the sprocket is not damaged or exceedingly worn. Replace or rotate the sprocket if the other side is not worn. Avoid any “hook” effect that takes place when the sprocket is exceedingly worn. “Hook” effects happen when the sprocket tooth profile does not allow the chain sprocket to get easily disconnected during the tooth rotation because of excessive wear.
HT220 Operator’s Manual Service - 101 50 Hour 50 Hour Location Task TRACTOR Inspect undercarriage pins and bushings TRENCHER Check and adjust digging chain gearbox and flywheel fluid level Lube tail roller Tractor Check Undercarriage Pins and Keepers Check undercarriage pins and keepers every 50 hours. Visually inspect for proper pin keeper position as well as excess movement. Inspect keeper bolts for loosening.
HT220 Operator’s Manual 50 Hour Lube Tail Roller Lube tail roller every 50 hours. Short Boom IMPORTANT: Schedule lubrication during an idle time to prevent water from oxidizing the bearings. Remove cap and lube with MPG. IMPORTANT: • Do not mix different greases. • Lube more frequently in case the seals are worn and schedule a change of seals for the next maintenance. Standard Boom 1. Unscrew the endcap center port. 2. Lube standard tail roller with DEO (both sides must be serviced).
HT220 Operator’s Manual Service - 103 100 Hour 100 Hour Location Task TRENCHER Check rubber mount supports Notes Check undercarriage rollers Clean breathers Check track tension Lube hydraulic motors Change engine air filters Change engine oil (initial) Change engine oil filter (initial) Check Rubber Mounts Check rubber mounts every 100 hours. Check the bolt tightness and rubber condition. If the rubber is worn or cracked, replace as necessary.
HT220 Operator’s Manual 100 Hour Check Breathers Check breathers (shown) every 100 hours. Check that there are no obstructions or sediment build-up. Clean the breathers as needed with oilbased solvent. Do not carry out the operation using flammable solvents or standing near a fire, sparks or other flammable sources. Check Track Tension Check track tension every 10 hours. Correct tension (A) is 3/8” (10 cm) chain sag between the conveyor rollers.
HT220 Operator’s Manual Service - 105 100 Hour Lubricate Hydraulic Motor Splines Lubricate all hydraulic motor and flywheel gearbox drive motor splines every 100 hours. 1. Unbolt and slide motors out of position. 2. Lubricate the female spline with a heavy-duty wheel bearing grease. 3. Re-bolt the drive motors in position, and tighten fasteners properly.
HT220 Operator’s Manual 100 Hour Change Engine Oil and Filter (initial) Change the engine oil and filter after first 100 hours and at 250 hours. 1. Place a container, capable of holding 27 qt (26 L) of oil, below drain plug (3). 2. Remove drain plug (3) and allow oil to drain. 3. Change engine oil filter. See “Change Engine Oil Filter”, below. 4. Add DEO at fill neck (1). See “Fluid Capacities” on page 123. 5. Use dipstick to indicate the proper oil level (2). Change Engine Oil Filter (initial) 1.
HT220 Operator’s Manual Service - 107 250 Hour 250 Hour Location Task TRACTOR Change engine oil and filter Check engine oil breather Inspect engine belts Change hydraulic filters (initial) Change Engine Oil and Filter Change the engine oil and filter after first 100 hours and at 250 hours. 1. Place a container, capable of holding 27 qt (26 liters) of oil, below drain plug (3). 2. Remove drain plug (3) and allow oil to drain. 3. Change engine oil filter. See “Change Engine Oil Filter” below. 4.
HT220 Operator’s Manual 250 Hour Check Engine Oil Breather Check engine oil breather every 250 hours. Clean or replace as necessary. Check Engine Belts Check engine belt tension every 250 hours. Check that the air conditioner compressor belt is correctly tightened. Tighten the belt if loose. Replace the belt if it is worn. Check and replace the radiator fan belt, if necessary. Check the belt tightener bearing and the fan bearing.
Service - 109 HT220 Operator’s Manual 250 Hour Change Hydraulic Filters (Initial) Change hydraulic filters every 250 hours. Replace the hydraulic filters: 1. Close all six valves on the hydraulic fluid tank. 2. Clean the external filter casings. 3. Loosen and remove the filter casing. 4. Remove all filtering elements (1-5) by loosening them from the heads and clean the casing and all other parts with a nonflammable solvent. 5. Install new filter elements. 6. Open all valves of the hydraulic tank.
HT220 Operator’s Manual Service - 110 500 Hour 500 Hour Location Task TRACTOR Change ground drive gearbox oil Change coupler oil Change hydraulic fluid Change hydraulic filters Replace fluid suction filters Check parking brakes Trencher Change digging chain gearbox and flywheel oil Change digging boom tail roller gaskets Change Ground Drive Gearbox Oil Change ground drive gearbox oil every 500 hours. 1. Place a container under drain plug (1) and remove drain plug. 2.
Service - 111 HT220 Operator’s Manual 500 Hour Change Hydraulic Fluid Change hydraulic fluid and filters every 500 hours. Drain hydraulic fluid from the tank (3) into a container suitable for transport or disposal. Remove breather (1) and add hydraulic fluid. Use the sight glass (2) to ensure that the proper amount of hydraulic fluid has been added. Change Hydraulic Filters Replace the hydraulic oil filters every 500 hours. 1. Close all six valves on the hydraulic fluid tank. 2.
HT220 Operator’s Manual Service - 112 500 Hour Replace Hydraulic Fluid Suction Filter Replace hydraulic fluid suction filter every 500 hours. 1. Remove the tank suction filter. 2. Clean the suction filter and breather, the magnetic plug and relevant wire net filter with non-flammable solvent. 3. Mount the suction filter. 4. Apply silicone on plug and tank then mount them back together. Pay attention that excess silicone does not fall in the tank. 5.
Service - 113 HT220 Operator’s Manual 500 Hour Change Flywheel Gearbox Fluid Change flywheel gearbox fluid every 500 hours. IMPORTANT: The engine-pump/coupler, flywheel gearbox, and the two track gearboxes must be serviced at the same time. 1. To fill, remove the breathers (1, 2). 2. Remove the plugs (3, 6) marked "OIL LEVEL" on the gearbox (7) and flywheel (8). 3. Fill with suitable oil until it leaks out of the oil level holes. 4.
HT220 Operator’s Manual Service - 114 1500 Hour 1500 Hour Location Task TRENCHER Exchange flywheel gearbox Exchange Flywheel Gearbox Schedule flywheel gearbox to be exchanged every 1500 hours.
HT220 Operator’s Manual Service - 115 2000 Hour 2000 Hour Location Task Notes TRACTOR Change engine coolant Change Engine Coolant Hot parts may cause burns. Do not touch until cool. NOTICE: Do not remove the pressure cap from a hot engine. Wait until the coolant temperature is below 122° F (50° C) before removing the pressure cap. Heated coolant spray or steam can cause personal injury. Change engine coolant every 2000 hours. Drain cooling system at drain (2) every two years or 2000 hours.
HT220 Operator’s Manual Service - 116 2000 Hour To Flush: Hot parts may cause burns. Do not touch until cool. NOTICE: Do not remove the pressure cap from a hot engine. Wait until the coolant temperature is below 122° F (50° C) before removing the pressure cap. Heated coolant spray or steam can cause personal injury. 1. Fill the system with a mixture of sodium carbonate and water (or a commercially available equivalent). 2.
HT220 Operator’s Manual Service - 117 As Needed As Needed Location Task TRACTOR Adjust track tension TRENCHER Replace conveyor belt Notes Adjust digging chain Replace wearplate Adjust Track Tension Adjust tension as needed. Check the track chain to make sure that it is suitably tightened. See “Check Track Tension” on page 104. To adjust, use the tensioner located on the undercarriage external sides. IMPORTANT: Do not tighten the track. Replace Conveyor Belt Replace conveyor belt as needed. 1.
HT220 Operator’s Manual Service - 118 As Needed 7. Remove the lateral hose-end fitting sideboards (without removing the rubber from the metal sideboards). 8. Disassemble the motor roller (left or right). 9. Remove the “old” belt or cut it if unusable. 10. Fit the new belt starting from the end without roller. 11. Reinsert the previously disassembled motor roller and reassemble repeating the above-mentioned operations in reverse order. Adjust Digging Chain Tension Adjust digging chain tension as needed.
Service - 119 HT220 Operator’s Manual As Needed Replace Wearplate Replace wearplate as needed. 1. Inspect wearplate (shown). 1. Turn all battery disconnects to the off position. See “Battery Disconnects” on page 43. 2. Cut the welds holding the wearplate to the boom. 3. Inspect bottom surface of wearplate. Use bottom surface of wearplate if it has not been used. 4. Weld new wearplate onto digging boom. 5. Connect batteries.
HT220 Operator’s Manual Specifications - 120 HT220 Trencher Specifications HT220 Trencher Dimensions U.S. Metric 22° 22° single chain boom 12-18 in 305-460 mm double chain boom 24 in 610 mm H1 Operating height 112.2 in 2.85 m H4 Engine compartment clearance 17.71 in 450 mm H10 Trench depth, maximum 4’ boom 48 in 1.2 m 5’ boom 60 in 1.5 m 6’ boom 72 in 1.8 m 8’ boom 96 in 2.
Specifications - 121 HT220 Operator’s Manual HT220 Trencher L Length, transport (with trench cleaner) 4’ boom 302 in 7.66 m 5’ boom 315 in 8m 6’ boom 331 in 8.4 m 8’ boom 358 in 9.1 m L2 Pitch - length from center drive sprocket to center idler 112 in 2.84 m L4 Engine compartment 60 in 1.54 m Spoil discharge reach, minimum to maximum 17-20 in 4.3-5.1 m W Width, transport (with 20”/51 cm Track Pads) 88 in 2.
HT220 Operator’s Manual Specifications - 122 HT220 Trencher Power U.S. Metric Displacement 409 in3 6.7 L Bore 4.21 in 107 mm Stroke 4.88 in 124 mm Engine manufacturer’s maximum gross power 220 hp 164 kW Rated speed (no load) 2,200 rpm 2,200 rpm Engine: Cummins QSB 6.
Specifications - 123 HT220 Operator’s Manual HT220 Trencher Hydraulic System U.S. Metric Maximum flow 46 gpm 174 L/min Maximum pressure 2,610 psi 180 bar Maximum flow 34 gpm 129 L/min Maximum pressure 4,206 psi 290 bar Maximum flow 64 gpm 242 L/min Maximum pressure 5,280 psi 364 bar Ground drive pump capacity at 2,200 rpm 13.6 gpm 51.5 L/min Ground drive pump relief setting 5,000 psi 344.7 bar 5,000 psi 344.
HT220 Operator’s Manual Specifications - 124 HT220 Trencher Noise Levels Operator sound pressure level is 81 dBA per ISO 6394 Exterior sound power level is 111 dBA per ISO 6393 Specifications are called out according to SAE recommended procedures. Specifications are general and subject to change without notice. If exact measurements are required, equipment should be weighed and measured. Due to selected options, delivered equipment may not necessarily match that described.
Specifications - 125 HT220 Operator’s Manual HT220 Trencher
HT220 Operator’s Manual Support - 126 Procedure Support Procedure Notify your dealer immediately of any malfunction or failure of Ditch Witch equipment. Always give model, serial number, and approximate date of your equipment purchase. This information should be recorded and placed on file by the owner at the time of purchase. Return damaged parts to dealer for inspection and warranty consideration if in warranty time frame.
HT220 Operator’s Manual Warranty - 127 Warranty Ditch Witch Equipment and Replacement Parts Limited Warranty Policy Subject to the limitation and exclusions herein, free replacement parts will be provided at any authorized Ditch Witch dealership for any Ditch Witch equipment or parts manufactured by The Charles Machine Works, Inc. (CMW) that fail due to a defect in material or workmanship within one (1) year of first commercial use (Exception: 2 years for all SK5 attachments).
HT115 Operator’s Manual Service Record - 130 Service Record Service Performed Date Hours CMW
Service Record - 131 Service Performed CMW HT115 Operator’s Manual Date Hours
