FX20 Operator’s Manual CMW® Issue 1.
FX20 Operator’s Manual Overview - 1 Overview Chapter Contents Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 4 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 4 • Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FX20 Operator’s Manual Overview - 2 Serial Number Location Serial Number Location Record serial numbers and date of purchase in spaces provided. FX20 serial number is located as shown. Date of manufacture Date of purchase FX20 serial number (shown) Engine serial number Blower serial number Water pump serial number Trailer serial number Intended Use The FX20 is a self-contained vacuum excavation unit capable of vacuuming a wide variety of nonhazardous, non-flammable liquid and solid debris.
FX20 Operator’s Manual Overview - 3 Unit Components Unit Components 1. Cyclonic filter reservoir 10. Vacuum filter 2. Cyclonic filter 11. Antifreeze tank 3. Air pre-filter 12. Battery 4. Blower 13. Water pump 5. Water tank 14. Operator’s station 6. Blower silencer 15. Engine 7. Potholing tools 16. Fuel tank 8. Door prop 17. Wash wand 9.
FX20 Operator’s Manual Overview - 4 Operator Orientation Operator Orientation 1. Rear of unit 3. Front of unit 2. Left of unit 4. Right of unit Right and left sides of machine are determined by facing towing vehicle. 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.
FX20 Operator’s Manual Foreword - 5 Reporting Safety Defects (Trailer-Mounted Units) 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.
FX20 Operator’s Manual Foreword - 6 FX20 Operator’s Manual Issue number 1.1/OM-6/08 Part number 053-1270 Copyright 2008 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. U.S. patents pending.
FX20 Operator’s Manual Contents - 7 Contents Overview 1 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 5 part number, revision level, and publication date of this manual, and factory contact information Safety 9 machine safety alerts and emergency procedures Controls 19 machine controls, gauges, and indicators and how to use them Operation Overview 27 an overview for completing a job
Contents - 8 Service Record a record of major service performed on the machine CMW FX20 Operator’s Manual 91
FX20 Operator’s Manual Safety - 9 Safety Chapter Contents Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Safety Alert Classifications . . . . . . . . . . . . . . . . . . 11 Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 15 • Electric Strike Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 • If an Electric Line is Damaged . . . . . . . . . . . .
Safety - 10 FX20 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.
FX20 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. YOUR SAFETY IS AT STAKE. Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level means.
FX20 Operator’s Manual Safety - 12 Safety Alerts Safety Alerts 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. Confined space will cause suffocation. Use proper procedures for entering or stay away. Vacuum will suffocate. Maintain distance between face and vacuum inlets. Jobsite hazards could cause death or serious injury.
FX20 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. Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark.
FX20 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. Exposure to high noise levels may cause hearing loss. Wear hearing protection. Fall possible. Slips or trips may result in injury. Keep area clean. Battery acid may cause burns. Avoid contact.
FX20 Operator’s Manual Safety - 15 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 remote engine stop button (if equipped). Electric Strike Description Electric shock.
Safety - 16 FX20 Operator’s Manual Emergency Procedures If an Electric Line is Damaged If you suspect an electric line has been damaged and you are on truck or trailer, DO NOT MOVE. Remain on truck or trailer and take the following actions. The order and degree of action will depend on the situation. • Warn people nearby that an electric strike has occurred. Instruct them to leave the area and contact utility. • Do not allow anyone into area until given permission by utility company.
FX20 Operator’s Manual Safety - 17 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 - 18 FX20 Operator’s Manual Emergency Procedures CMW
FX20 Operator’s Manual Controls - 19 Controls Chapter Contents Engine/Operator’s Station . . . . . . . . . . . . . . . . . . . 20 Machine Controls . . . . . . . . . . . . . . . . . . . . . . . . . .
FX20 Operator’s Manual Controls - 20 Engine/Operator’s Station Engine/Operator’s Station 1. Throttle 5. Hourmeter 2. Choke 6. Water pump switch 3. Ignition switch 7. Auxiliary outlet 4. Water pressure gauge 8. Water pressure control Item Description Notes 1. Throttle To increase engine speed, move left. NOTICE: Set engine speed to full throttle before turning off engine. To decrease engine speed, move right. 2. Choke To choke cold engine, move left. To operate normally, move right.
FX20 Operator’s Manual Controls - 21 Engine/Operator’s Station Item Description Notes 3. Ignition switch To start engine, insert key and turn clockwise. IMPORTANT: When engine is on, blower operates and vacuum is present at tank inlet. To stop engine, turn key counterclockwise. 4. Water pressure gauge Displays water pressure when water pressure switch is on and water lance is in use. 5. Hourmeter Displays engine operating time. NOTICE: Set engine speed to full throttle before turning off engine.
FX20 Operator’s Manual Controls - 22 Engine/Operator’s Station Item Description 8. Water pressure control To increase water pressure, turn clockwise. To decrease water pressure, turn counterclockwise.
FX20 Operator’s Manual Controls - 23 Machine Controls Machine Controls 1. Debris tank sight glass 6. Tank door handle 2. Inlet valve 7. Drain valve 3. Cyclonic filter sight glass 8. Water tank drain valve 4. Battery disconnect switch 9. Antifreeze tank supply valve 5. Vacuum gauge 10. Water tank supply valve Item Description Notes 1. Debris tank sight glass 2. Inlet valve To close valve (stop suction), rotate up. To open valve (start suction), rotate down. 3.
FX20 Operator’s Manual Controls - 24 Machine Controls Item Description Notes 4. Battery disconnect switch To connect, turn clockwise. IMPORTANT: Use battery disconnect switch when servicing, welding, and during long-term storage. To disconnect, turn counterclockwise. 5. Vacuum gauge Displays blower vacuum reading in inches of mercury. Vacuum relief valve opens when vacuum reaches 15” (381 mm). 6. Tank door handle To close tank door, turn clockwise several times.
FX20 Operator’s Manual Controls - 25 Machine Controls Item Description Notes 9. Antifreeze tank supply valve To open valve (send antifreeze through pump and water lance), rotate counterclockwise. IMPORTANT: To close valve (stop antifreeze flow), rotate clockwise. 10. Water tank drain valve • Water tank supply valve or antifreeze supply valve must be open when pump is running or pump will be damaged. • Close supply valve when using antifreeze valve. To drain tank, open valve.
Controls - 26 FX20 Operator’s Manual Machine Controls CMW
FX20 Operator’s Manual Operation Overview - 27 Operation Overview Chapter Contents Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Setting Up at Jobsite . . . . . . . . . . . . . . . . . . . . . . . 28 Vacuuming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Potholing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Leaving Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Storing Equipment . . . . . . . . . . . . . . . . . .
Operation Overview - 28 FX20 Operator’s Manual Planning Planning 1. Gather information about jobsite (page 32). 2. Inspect jobsite (page 33). 3. Check supplies and prepare equipment (page 35). Setting Up at Jobsite 1. Prepare jobsite (page 34). 2. Position vacuum excavation unit. 3. Leave unit hitched to towing vehicle or properly stabilized if trailer-mounted unit. 4. Block trailer wheels if trailer-mounted unit. Vacuuming 1. Connect hoses (page 44). 2. Start unit (page 44). 3. Remove debris (page 45).
FX20 Operator’s Manual Operation Overview - 29 Potholing Potholing 1. Connect hoses (page 44). 2. Start unit (page 44). 3. Pothole (page 46). 4. Disconnect hoses. 5. Drain tank (page 48). Leaving Jobsite 1. Rinse unit and tools (page 53). 2. Stow tools (page 53). Storing Equipment 1. For cold weather storage, antifreeze vacuum excavation unit (page 52). 2. For long-term storage, disconnect battery disconnect switch (page 23).
Operation Overview - 30 FX20 Operator’s Manual Storing Equipment CMW
FX20 Operator’s Manual Prepare - 31 Prepare Chapter Contents Gather Information . . . . . . . . . . . . . . . . . . . . . . . . . 32 • Arrange for Traffic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 • Prepare for Working Near Existing Utilities . . . . . . . . . . . . . . . . . . . . . .32 • Plan for Emergency Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Inspect Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepare - 32 FX20 Operator’s Manual Gather Information Gather Information A successful job begins before the excavation. The first step in planning is reviewing information already available about the job and jobsite. Arrange for Traffic Control If working near a road or other traffic area, contact local authorities about safety procedures and regulations.
FX20 Operator’s Manual Prepare - 33 Inspect 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 (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to have underground utilities located before working. Also contact any utilities that do not participate in the One-Call service.
FX20 Operator’s Manual Prepare - 34 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. • Cutting high voltage cable can cause electrocution. Expose lines by hand before using unit. • All vegetation near operator’s station must be removed.
FX20 Operator’s Manual Prepare - 35 Check Supplies and Prepare Equipment Check Supplies and Prepare Equipment Assemble Accessories Fire Extinguisher If required, mount a fire extinguisher near the power unit but away from possible points of ignition. The fire extinguisher should always be classified for both oil and electric fires. It should meet legal and regulatory requirements. Lighting Kit If you will need additional light, plug lighting kit into provided outlet.
Prepare - 36 FX20 Operator’s Manual Check Supplies and Prepare Equipment Prepare Equipment Fluid Levels • fuel • battery • engine oil • blower oil Condition and Function • filters (air, oil) • belts • blower • tires • hoses and valves • couplers and fittings • water tanks • trailer parking brake (trailer-mounted unit) CMW
FX20 Operator’s Manual Transport - 37 Transport Chapter Contents Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 • Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 • Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Attach Skid to Trailer . . . . . . . . . . . . . . . . . . . . . . . 39 Attach Skid to Truck Bed . . . . . . . . . . . . . . . . . . .
FX20 Operator’s Manual Transport - 38 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 and can damage machinery. Procedure Use a crane capable of supporting the equipment's size and weight. See “Specifications” on page 81 or measure and weigh equipment before lifting. Use top lift point as shown.
FX20 Operator’s Manual Transport - 39 Attach Skid to Trailer Attach Skid to Trailer Bolt skid to S4S trailer at 4 locations. Use bolt and nut (1,2) to secure. Tighten to 200-225 ft•lb (270305 N•m). Install light strip to rear of tank using bolts and nuts (3,4). Connect wiring harness from light strip to connector (5). IMPORTANT: See parts manual for correct bolt size and grade. Attach Skid to Truck Bed Use indicated tiedowns to secure skid to truck bed. Be sure to tie down both front and rear of unit.
FX20 Operator’s Manual Transport - 40 Haul (Trailer-Mounted Unit) Haul (Trailer-Mounted Unit) Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. Inspect Trailer • Check hitch for wear and cracks. Lubricate if needed. • Inspect lights for cleanliness and correct operation. Inspect reflectors and replace if needed. • Check tire pressure. Check lug nut torque with a torque wrench. Hitch Trailer 1. Back tow vehicle to trailer. 2.
FX20 Operator’s Manual Transport - 41 Haul (Trailer-Mounted Unit) Unhitch Trailer 1. Stop tow vehicle and trailer on level ground. 2. Put manual transmission into first or reverse gear or automatic transmission into park. Turn off ignition. Set parking brake. 3. Block trailer wheels or set trailer emergency parking brake. 4. To unhitch trailer from tow vehicle, reverse “Hitch Trailer“ steps.
Transport - 42 FX20 Operator’s Manual Haul (Trailer-Mounted Unit) CMW
FX20 Operator’s Manual Vacuum and Pothole - 43 Vacuum and Pothole Chapter Contents Connect Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Start Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Remove Debris . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 • Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Pothole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vacuum and Pothole - 44 FX20 Operator’s Manual Connect Hoses Connect Hoses 1. Remove vacuum hoses from storage. 2. If potholing, remove potholing tool from storage. 3. Connect hoses. Secure all locking clamps. 4. Ensure inlet and drain valves are closed. 5. If potholing, connect water pressure hose (shown). Start Unit EMERGENCY SHUTDOWN: Turn ignition switch to STOP. 1. Insert key. 2. Choke engine if necessary. See page 20 for more information. 3. Turn key clockwise. See page 21 for more information. 4.
FX20 Operator’s Manual Vacuum and Pothole - 45 Remove Debris Remove Debris EMERGENCY SHUTDOWN: Turn ignition switch to STOP. Procedure 1. Position vacuum hose in area to be excavated. 2. Start engine. Vacuum will suffocate. Maintain distance between face and vacuum inlets. Fire or explosion possible. Do not vacuum flammable or combustible substances. 3. Open inlet valve if necessary to begin excavation. Incorrect procedures could result in death, injury, or property damage.
FX20 Operator’s Manual Vacuum and Pothole - 46 Pothole Pothole EMERGENCY SHUTDOWN: Turn ignition switch to STOP. 1. Start engine. Vacuum will suffocate. Maintain distance between face and vacuum inlets. Fire or explosion possible. Do not vacuum flammable or combustible substances. 2. Open water tank valve. 3. Move water pump switch to on. It might be necessary to prime the pump if water level is low. See “Prime Water Pump” on page 47. 4. Open inlet valve if necessary. 5.
FX20 Operator’s Manual Vacuum and Pothole - 47 Pothole 6. Adjust water pressure as needed to match soil conditions and/or material of utility being exposed. Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. NOTICE: High pressure water can cut utility lines. Test water pressure on a sample of the material to be located. Adjust pressure until no damage occurs to the material. 7.
Vacuum and Pothole - 48 FX20 Operator’s Manual Drain Tank Drain Tank EMERGENCY SHUTDOWN: Turn ignition switch to STOP. 1. Ensure that unit is hitched to vehicle for trailer-mounted units. See “Hitch Trailer” on page 40. 2. Haul unit to approved dumping area. 3. Open drain valve and inlet valve. 4. Open tank door. • Turn tank door handle (1) counterclockwise to loosen door. • Turn off engine. Tank door will open when vacuum is relieved.
FX20 Operator’s Manual Vacuum and Pothole - 49 Drain Tank 5. Allow tank to drain completely. 6. Connect water pressure hose to water lance. 7. Turn water pump switch on. Adjust water pressure. 8. Use water lance to thoroughly rinse inside of tank and around door seal. Confined space will cause suffocation. Use proper procedures for entering or stay away. NOTICE: Enter tank only if necessary. Follow U.S. Department of Labor guidelines for entering confined spaces. 9. Close tank door.
Vacuum and Pothole - 50 FX20 Operator’s Manual Drain Tank CMW
FX20 Operator’s Manual Complete the Job - 51 Complete the Job Chapter Contents Antifreeze Vacuum Excavation Unit . . . . . . . . . . . 52 • Add Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 • Reclaim Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Rinse Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FX20 Operator’s Manual Complete the Job - 52 Antifreeze Vacuum Excavation Unit Antifreeze Vacuum Excavation Unit Add Antifreeze Follow these steps for overnight or long-term storage of unit during cold weather. 1. Open water tank valve and drain valve to drain all water from water tank. 2. Fill antifreeze tank with a propylene-glycol based antifreeze. 3. Close water tank valve and drain other valve. 4. Open antifreeze tank valve. 5. Connect water pressure hose to water lance. 6. Start engine. 7.
FX20 Operator’s Manual Complete the Job - 53 Rinse Equipment Rinse Equipment Spray water onto equipment to remove dirt and mud. Use water lance. Thoroughly rinse inside of tank and around door seal. Confined space will cause suffocation. Use proper procedures for entering or stay away. NOTICE: Enter tank only if necessary. Follow U.S. Department of Labor guidelines for entering confined spaces. NOTICE: Do not spray water onto operator’s console. Electrical components could be damaged. Wipe down instead.
Complete the Job - 54 FX20 Operator’s Manual Stow Tools CMW
FX20 Operator’s Manual Service - 55 Service Chapter Contents Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Recommended Lubricants/Service Key . . . . . . . . 56 Each Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 10 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 25 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 50 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FX20 Operator’s Manual Service - 56 Precautions 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.
FX20 Operator’s Manual Service - 57 Recommended Lubricants/Service Key For more information on engine lubrication and maintenance, see your engine manual. NOTICE: • Use only genuine Ditch Witch parts, filters, approved lubricants, TJC, and approved coolants to maintain warranty. • Use the “Service Record” on page 91 to record all required service to your machine.
FX20 Operator’s Manual Service - 58 Each Use Each Use Location Task Notes Vacuum System Check battery Trailer Check torque of hitch bolts 271 ft•lb (367 N•m) Check tire pressure and lug nut torque 65 psi (4.5 bar) 95 ft•lb (129 N•m) Check lights and reflectors Check strobe light Vacuum System Check Battery Check battery connections for wear or corrosion. Keep connections clean and tight. Batteries supplied by factory are maintenance-free.
FX20 Operator’s Manual Service - 59 10 Hour Check Strobe Light Check strobe light for proper function every 10 hours. When ignition is on, strobe light should be flashing. Repair if necessary.
Service - 60 FX20 Operator’s Manual 10 Hour Vacuum System Check Engine Oil Level Check engine oil at dipstick (2) before operation and every 10 hours thereafter. Check with unit on level surface and at least 15 minutes after stopping engine. Add GEO at fill (1) as necessary to keep oil level at highest line on dipstick. Check Engine Air Filter Check air filter every 10 hours. Change filter element as needed.
FX20 Operator’s Manual Service - 61 10 Hour Check Blower Check blower every 10 hours for unusual noise or vibration. If malfunction is detected: 1. Stop engine. 2. Consult blower repair manual. Check Water Pump Oil Level With frame level, check water pump oil at dipsitck every 10 hours. Oil should be at full mark on dipstick. Add NDO at fill as necessary to keep oil at full mark on dipstick. Check Water Pump Check water pump unit every 10 hours for leaks, loose fittings, unusual noise or vibration.
Service - 62 FX20 Operator’s Manual 10 Hour Check Water Pump Regulator Check for proper operation of regulator every 10 hours. To check: 1. Ensure there is water in tank. 2. Start engine. 3. Connect water pressure hose to water lance. 4. Move water pressure switch to on. 5. Squeeze water lance handle. Water pump should engage. 6. Release water lance handle. Water pump should disengage.
FX20 Operator’s Manual Service - 63 10 Hour Clean Vacuum Air Filter Clean filter every 10 hours or as needed. To clean filter: 1. Remove filter from canister. 2. Run low pressure water into inside of filter. NOTICE: Do not use high pressure water to clean filter. Filter will be damaged. 3. Allow filter to dry completely before returning to canister. Drain Cyclonic Filter Canister Drain filter canister at drain every 10 hours or as needed. Drain when water is visible in sight glass (1).
FX20 Operator’s Manual Service - 64 10 Hour Check Spray Nozzle Check spray nozzle every 10 hours. Ensure that water sprays from nozzle in a fan pattern. Clean or replace nozzle as necessary. Fluid or air pressure could pierce skin and cause injury or death. Stay away. NOTICE: Escaping pressurized fluid can cause injury or pierce skin and poison. • Before using system, check that all connections are tight and all lines are undamaged. • Fluid leaks can be hard to detect.
FX20 Operator’s Manual Service - 65 25 Hour Check Vacuum Tank Door Seals and Fittings Check door seal every 10 hours for wear or damage. Repair if necessary. Check for leaks and loose fittings every 10 hours. Repair or replace if necessary. 25 Hour Vacuum System Change Water Pump Oil Change oil after the first 25 hours of operation and every 100 hours thereafter. Change oil more frequently if working in dusty conditions. • Drain at drain plug (2) while oil is warm.
FX20 Operator’s Manual Service - 66 50 Hour 50 Hour Location Task Vacuum System Check water pump belt tension Notes Check blower belt tension Check blower relief valve Lube blower bearings Check water pressure hoses Check vacuum air filter and hoses Debris Tank Lube door handle screw Vacuum System Check Water Pump Belt Tension Check belt every 50 hours for correct tension, damage or wear. Replace worn belt. Tighten as needed. See “Adjust Water Pump Belt Tension” on page 78. To check 1.
FX20 Operator’s Manual Service - 67 50 Hour Check Blower Belt Tension Check belt every 50 hours for correct tension, damage or wear. Replace worn belt. Both ends of tube must touch spring caps for belt to be correctly tensioned. Tighten as needed. See “Adjust Blower Belt Tension” on page 77. Check Blower Relief Valve Check relief valve for proper operation every 50 hours. To check: 1. Ensure that vacuum inlet valve and drain valve are both closed. 2. Start engine. Vacuum will start to build. 3.
Service - 68 FX20 Operator’s Manual 50 Hour Check Water Pressure Hoses Check hoses every 50 hours for wear or damage. Replace as needed. Check Vacuum Air Filter and Hoses Check filter and suction hose (shown) every 50 hours for wear or holes. Check more often if working in dusty conditions. Clean or replace filter if necessary. Debris Tank Lube Door Handle Screw Lube every 50 hours with MPG.
FX20 Operator’s Manual Service - 69 100 Hour 100 Hour Location Task Notes Vacuum System Change water pump oil NDO Check blower drive components Change engine oil Debris Tank GEO Check tank deflector Vacuum System Change Water Pump Oil Change oil after the first 25 hours of operation and every 100 hours thereafter. Change oil more frequently if working in dusty conditions. • Drain at drain plug (2) while oil is warm. • Refill with NDO at fill (1) until oil is at halfway mark on dipstick.
Service - 70 FX20 Operator’s Manual 100 Hour Change Engine Oil Change engine oil every 100 hours. Remove drain cap, push and turn 1/4 to open. Drain oil (2) and add 1.7-1.9 qt (1.6-1.8 L) of GEO at fill (1). IMPORTANT: Use oil specified in “Engine Oil Temperature Chart” on page 57. Debris Tank Check Tank Deflector Check tank deflector every 100 hours for wear or damage. Replace as needed.
FX20 Operator’s Manual Service - 71 200 Hour 200 Hour Change Engine Oil and Filter Change engine oil every 200 hours. Drain oil (2) and replace filter (shown below). Add 1.7-1.9 qt (1.6-1.8 L) of GEO at fill (1). IMPORTANT: Use oil specified in “Engine Oil Temperature Chart” on page 57.
Service - 72 FX20 Operator’s Manual 500 Hour 500 Hour Vacuum System Change Fuel Filter Replace fuel filter every 500 hours for normal service. If you refuel from cans, replace filter more often. See parts manual or contact your Ditch Witch dealer for correct replacement filter. 1000 Hour Vacuum System Change Blower Oil Change oil every 1000 hours. Change oil more frequently if working in dusty conditions. • Drain at drain plug (2) while oil is warm.
FX20 Operator’s Manual Service - 73 2000 Hour 2000 Hour Location Task Vacuum System Replace water pump belt Notes Replace blower belt Vacuum System Replace Water Pump Belt Replace belt every 2000 hours. Replace Blower Belt Replace belt every 2000 hours. 1. Turn off engine. 2. Remove covers. 3. Loosen 4 bolts from underneath skid. 4. Loosen u-bolt (4) to allow blower to slide. 5. Slide pump and remove belt. 6. Install new belt. 7. Insert prybar in hole (3) and move blower until belt is tight. 8.
FX20 Operator’s Manual Service - 74 300 Mile 300 Mile Location Task Notes Trailer Adjust brakes Initial Adjust parking brake Trailer Adjust Brakes (Initial) Adjust brakes after 300 miles (500 km). 1. Place adequate jack stands under frame rails. 2. Remove cover from adjusting slot on bottom of backing plate. 3. Rotate adjuster starwheel with screwdriver or brake spoon to expand brake shoes. Adjust until drum is very difficult to turn by hand. 4.
FX20 Operator’s Manual Service - 75 3000 Mile 3000 Mile Trailer Adjust Brakes Adjust brakes every 3000 miles (5000 km). 1. Place adequate jack stands under frame rails. 2. Remove cover from adjusting slot on bottom of backing plate. 3. Rotate adjuster starwheel with screwdriver or brake spoon to expand brake shoes. Adjust until drum is very difficult to turn by hand. 4. Rotate starwheel the other direction until drum turns with slight drag. 5. Replace adjusting slot cover and replace wheel. 6.
FX20 Operator’s Manual Service - 76 12,000 Mile 12,000 Mile Location Task Trailer Inspect brake shoes and linings Adjust and lubricate bearings Trailer Inspect brake shoes and linings Inspect shoes and linings every 12 months or 12,000 miles (20 000 km) for wear. When lining is worn to 1/16” (2 mm) or less, replace linings. Replace shoe and lining if contaminated by oil. Adjust and Lubricate Bearings 1. Place adequate jack stands under frame rails and remove wheels. 2.
FX20 Operator’s Manual Service - 77 As Needed As Needed Location Task Vacuum System Adjust water pump belt tension Notes Change water pump filter Adjust blower belt tension Lube blower for longterm storage Change blower relief air filter Debris Tank Clean primary shutoff valve Vacuum System Adjust Blower Belt Tension 1. Turn off engine. 2. Loosen 4 bolts (2) from underneath skid. 3. Loosen u-bolt (4) to allow blower to slide. 4. Insert prybar in hole (3) and move blower until belt is tight. 5.
Service - 78 FX20 Operator’s Manual As Needed Change Water Pump Filter 1. Open filter housing. 2. Remove element and rinse housing thoroughly with water. 3. Replace element. NOTICE: Be sure filter element is properly seated. 4. Close filter housing. Adjust Water Pump Belt Tension 1. Turn off engine and remove key. 2. Apply moderate thumb pressure to belt between pulleys. Belt is properly tensioned when deflection is about 1/4” (5-8 mm). 3. If needed, loosen four bolts (1). 4.
FX20 Operator’s Manual Service - 79 As Needed Lube Blower for Long-term Storage Lubricate blower before long-term storage to help prevent rust and lockup. 1. Remove plug from fitting at filter. 2. Start engine. 3. Spray light oil into port and run unit for 1-2 minutes. 4. Turn off engine. Change Blower Relief Air Filter Check air filter whenever vacuum gauge goes over 15” (381 mm) of mercury. Change as needed. NOTICE: Operating system above 15” (381 mm) of mercury may result in blower damage. 1.
Service - 80 FX20 Operator’s Manual As Needed Debris Tank Clean Primary Shutoff Valve Clean primary shutoff valve as needed. Replace primary shutoff valve as needed. To clean: 1. Open tank door. See “Drain Tank” on page 48. 2. Spray valve housing inside vacuum tank with high-pressure water. 3. Store water pressure hose. 4. Close tank door. See “Drain Tank” on page 48. To remove: 1. Disconnect hose from elbow. 2. Remove bolts (1) and pull out valve housing (2). 3. Remove ball (3). 4.
FX20 Operator’s Manual Specifications - 81 Specifications Dimensions (Skid Package) U.S. Metric A Length 109 in 2.8 m B Height 74 in 1.9 m C Width 63 in 1.
Specifications - 82 FX20 Operator’s Manual Dimensions (S4S Trailer Package) U.S. Metric A Length 174 in 4.4 m B Height 93 in 2.4 m C Width 86 in 2.
FX20 Operator’s Manual Power Specifications - 83 U.S. Metric Cooling medium air Fuel delivery carburetor Aspiration natural Number of cylinders 2 Displacement 44 in3 725 cc Bore 3.27 in 83 mm Stroke 2.64 in 67 mm Engine manufacturer’s gross power rating (per SAE J1940) 27 hp 20.1 kW Rated engine speed 3600 rpm 3600 rpm * Exceeding these operating angles will cause engine damage. This DOES NOT IMPLY machine is stable to maximum angle of safe engine operation. Battery SAE res. cap.
Specifications - 84 FX20 Operator’s Manual Vacuum system U.S. Metric Filter area 74 ft2 6.9 m2 Cyclonic filter trap capacity 4.5 gal 17 L Suction hose size (standard) 3 in 76 mm Suction hose length (total) 25 ft 7.6 m Water system U.S. Metric Water pump pressure (maximum) 3000 psi 207 bar Water pump flow 2.6 gpm 9.8 L/min Hose 50 ft 15.2 m Fluid capacities U.S. Metric Engine oil with filter 1.7-1.9 qt 1.6-1.8 L Fuel tank 10 gal 38 L Vacuum pump 22.
FX20 Operator’s Manual Trailer - S4S Specifications - 85 U.S. Metric Adj. coupler height 16 in 406 mm Width between fenders 64 in 2.2 m Width outside fenders 86 in 2.2 m Number of axles 2 Coupler (bolt-on adjustable) 2”, 2 5/16”, 3” lunette Type of brakes electric Lug nut torque 95 ft•lb 129 N•m Hitch bolt torque 160 ft•lb 217 N•m Electrical system 12V DC ST225/75R15 load range D 65 psi 4.
Specifications - 86 CMW FX20 Operator’s Manual
Operator’s Manual Support - 87 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.
Operator’s Manual Warranty - 88 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).
Operator’s Manual Service Record - 91 Service Record Service Performed Date Hours CMW
Service Record - 92 Service Performed CMW Operator’s Manual Date Hours
TIRE SAFETY INFORMATION 1.1. STEPS FOR DETERMINING CORRECT LOAD LIMIT – TRAILER Determining the load limits of a trailer includes more than understanding the load limits of the tires alone. On all trailers there is a Federal certification/VIN label that is located on the forward half of the left (road) side of the unit. This certification/VIN label will indicate the trailer’s Gross Vehicle Weight Rating (GVWR). This is the most the fully loaded trailer can weigh.
The Tire Information Placard is attached adjacent to or near the trailer’s VIN (Certification) label at the left front of the trailer. 1.1.2. TRAILERS OVER 10,000 POUNDS GVWR (NOTE: These trailers are not required to have a tire information placard on the trailer.) 1. Determine the empty weight of your trailer by weighing the trailer using a public scale or other means. This step does not have to be repeated. 2.
Innerliner separation - the parting of the innerliner from cord material in the carcass. Light truck (LT) tire - a tire designated by its manufacturer as primarily intended for use on lightweight trucks or multipurpose passenger vehicles. Load rating - the maximum load that a tire is rated to carry for a given inflation pressure. Maximum load rating - the load rating for a tire at the maximum permissible inflation pressure for that tire.
1.4. TIRE SAFETY - EVERYTHING RIDES ON IT The National Traffic Safety Administration (NHTSA) has published a brochure (DOT HS 809 361) that discusses all aspects of Tire Safety, as required by CFR 575.6. This brochure is reproduced in part below. It can be obtained and downloaded from NHTSA, free of charge, from the following web site: http://www.nhtsa.dot.gov/cars/rules/TireSafety/ridesonit/tires_index.
1.5.2. UNDERSTANDING TIRE PRESSURE AND LOAD LIMITS Tire inflation pressure is the level of air in the tire that provides it with load-carrying capacity and affects the overall performance of the trailer. The tire inflation pressure is a number that indicates the amount of air pressure– measured in pounds per square inch (psi) or kilopascals (kpa) –a tire requires to be properly inflated.
1.5.5. TIRE SIZE To maintain tire safety, purchase new tires that are the same size as the trailer's original tires or another size recommended by the manufacturer. Look at the tire information placard, the owner's manual, or the sidewall of the tire you are replacing to find this information. If you have any doubt about the correct size to choose, consult with your dealer. 1.5.6.
1.5.9.2. Information on Light Truck Tires Please refer to the diagram below. Tires for light trucks have other markings besides those found on the sidewalls of passenger tires. LT - indicates the tire is for light trucks or trailers. ST - indicates the tire is for trailer use only. Max. Load Dual kg (lbs) at kPa (psi) Cold - indicates the maximum load and tire pressure when the tire is used as a dual, that is, when four tires are put on each axle. Max.
