Ditch Witch SK752 Operator's Manual
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Ditch Witch SK752 Operator's Manual

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SK752
Operator's
Manual
Issue 2.0
053-2859
Original Instruction

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Summary of Contents for Ditch Witch SK752

  • Page 1 SK752 Operator’s Manual Issue 2.0 053-2859 Original Instruction...

  • Page 2: Table Of Contents

    SK752 Operator’s Manual Overview - 1 Overview Chapter Contents Serial Number Location ..... . 2 Intended Use ....... 3 Equipment Modification .

  • Page 3: Serial Number Location

    SK752 Operator’s Manual Overview - 2 Serial Number Location Serial Number Location Record serial numbers and date of purchase in spaces provided. Unit serial number is located as shown. t46om013w.eps Item date of manufacture date of purchase unit serial number...

  • Page 4: Intended Use

    The SK752 is a platform, rubber track compact tool carrier unit designed for light-to medium-duty construction work. The SK752 has a quick attach mount plate which makes it easy for an operator to connect different attachments. The unit is designed for operation in temperatures typically experienced in ®...

  • Page 5: Unit Components

    SK752 Operator’s Manual Overview - 4 Unit Components Unit Components t46om014w.eps 1. Operator station 2. Tracks 3. Engine compartment 4. Lift arms 5. Attachment plate...

  • Page 6: Operator Orientation

    SK752 Operator’s Manual Overview - 5 Operator Orientation Operator Orientation 1. Front of unit 2. Right side of unit 3. Rear of unit 4. Left side of unit t46om015w.eps...

  • Page 7: About This Manual

    SK752 Operator’s Manual Overview - 6 About This Manual About This Manual This manual contains information for the proper use of this machine. See the beige Operation Overview pages for basic operating procedures. Cross references such as “See page 50” will direct you to detailed procedures.

  • Page 8: 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 9 Issue number 2.0 / OM-4/17 Part number 053-2859 Copyright 2015, 2017 by The Charles Machine Works, Inc. and Ditch Witch are registered trademarks of The Charles Machine Works, Inc. This product and its use may be covered by one or more patents at http://patents.charlesmachine.works.
  • Page 10 SK752 Operator’s Manual Contents - 9 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 11 SK752 Operator’s Manual Contents - 10...

  • Page 12: Safety

    SK752 Operator’s Manual Safety - 11 Safety Chapter Contents Guidelines ....... . 12 California Proposition 65 Warning .

  • Page 13: Guidelines

    • Fully inspect equipment before operating. Repair or replace any worn or damaged parts. Replace missing or damaged safety shields and safety signs. Contact your Ditch Witch dealer for assistance. • Use equipment carefully. Stop operation and investigate anything that does not look or feel right.

  • Page 14: Emergency Procedures

    SK752 Operator’s Manual Safety - 13 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.

  • Page 15: If An Electric Line Is Damaged

    SK752 Operator’s Manual Safety - 14 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.

  • Page 16: If A Gas Line Is Damaged

    SK752 Operator’s Manual Safety - 15 Emergency Procedures If a Gas Line is Damaged Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark. 275-419 (2P) Explosion possible. Serious injury or equipment damage could occur.

  • Page 17: If A Fiber Optic Cable Is Damaged

    SK752 Operator’s Manual Safety - 16 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. Contact utility company. 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.

  • Page 18: Safety Alert Classification

    SK752 Operator’s Manual Safety - 17 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 19: Machine Safety Alerts

    SK752 Operator’s Manual Safety - 18 Machine Safety Alerts Machine Safety Alerts Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. 274-050; 274-724 (2P) Lift point. See Transport chapter for more information.
  • Page 20 SK752 Operator’s Manual Safety - 19 Machine Safety Alerts Moving parts could cut off hand or foot. Stay away. 275-184 Fire or explosion possible. Do not use starter fluid. 273-459 (2P), 274-206 (2P), 700-206 (2P) Tiedown location. See Transport chapter for more information.
  • Page 21 SK752 Operator’s Manual Safety - 20 Machine Safety Alerts...

  • Page 22: Controls

    SK752 Operator’s Manual Controls - 21 Controls Chapter Contents Gauges and Indicators ..... . 22 Controls ........24 Engine Compartment .

  • Page 23: Gauges And Indicators

    SK752 Operator’s Manual Controls - 22 Gauges and Indicators Gauges and Indicators t46om001w.eps 1. Glow plug button 6. Ignition switch 2. Engine coolant temperature gauge 7. Hourmeter 3. Engine oil pressure indicator 8. Engine coolant temperature indicator 4. Hydraulic fluid temperature indicator 9.
  • Page 24 SK752 Operator’s Manual Controls - 23 Gauges and Indicators Item Description Notes 1. Glow plug button To help start cold engine, turn IMPORTANT: Press glow plug button ignition switch to first position. according to temperatures below. Press glow plug button as •...

  • Page 25: Controls

    SK752 Operator’s Manual Controls - 24 Controls Controls t46om002w.eps 1. Left track drive control or 5. Lift arm control Track drive joystick (optional) 6. Attachment drive control 2. Right track drive control or 7. Throttle Track drive joystick (optional) 8. Attachment drive foot control 3.
  • Page 26 SK752 Operator’s Manual Controls - 25 Controls Item Description Notes 1. Left track drive control To move forward, push. To turn right, move left control farther forward than right control. 2. Right track drive To move backward, pull. control To turn left, move right control farther To go faster in either forward than left control.
  • Page 27 SK752 Operator’s Manual Controls - 26 Controls Item Description Notes 4. Ignition switch To start engine, insert key and IMPORTANT: turn clockwise. • If engine does not start or stalls, To stop engine, turn key turn key to STOP and then counterclockwise.
  • Page 28 SK752 Operator’s Manual Controls - 27 Controls Item Description Notes 8. Attachment drive foot To hold attachment drive in IMPORTANT: Use foot pedal to hold control engaged position (forward or attachment control in the on position reverse), lift lever lock, move...

  • Page 29: Engine Compartment

    SK752 Operator’s Manual Controls - 28 Engine Compartment Engine Compartment t46om003w.eps 1. Battery disconnect switch Item Description Notes 1. Battery disconnect To connect, turn clockwise. switch To disconnect, turn counterclockwise.

  • Page 30: Attachment Plate

    SK752 Operator’s Manual Controls - 29 Attachment Plate Attachment Plate t43om034w.eps 1. Level indicator 2. Attachment latches Item Description Notes 1. Level indicator To level bucket, adjust bucket To level other attachments, adjust position until indicator is at attachment position until it is level.
  • Page 31 SK752 Operator’s Manual Controls - 30 Attachment Plate...

  • Page 32: Prepare

    SK752 Operator’s Manual Prepare - 31 Prepare Chapter Contents Gather Information ......32 • All Jobs ..........32 •...

  • Page 33: Gather Information

    SK752 Operator’s Manual Prepare - 32 Gather Information Gather Information A successful job begins before you start working. The first step in planning is reviewing information already available about the job and jobsite. All Jobs 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.

  • Page 34: Inspect Site

    SK752 Operator’s Manual Prepare - 33 Inspect Site Inspect Site Identify Hazards 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 •...

  • Page 35: Classify Jobsite

    SK752 Operator’s Manual Prepare - 34 Classify Jobsite Classify Jobsite Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment. To help avoid injury: • Wear personal protective equipment including hard hat, safety eye wear, and hearing protection.

  • Page 36: Apply Precautions

    SK752 Operator’s Manual Prepare - 35 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. •...

  • Page 37: Check Supplies And Prepare Equipment

    SK752 Operator’s Manual Prepare - 36 Check Supplies and Prepare Equipment Check Supplies and Prepare Equipment Supplies • fuel NOTICE: Use low sulfur or ultra low sulfur fuel only. • keys • lubricants • personal protective equipment, such as hard hat and safety glasses Fluid Levels •...

  • Page 38: Connect Attachment

    SK752 Operator’s Manual Prepare - 37 Connect Attachment Connect Attachment ® NOTICE: Use only Ditch Witch -approved attachments. Attachments can change the stability and operating characteristics of the unit. See attachment operation manual for instructions regarding proper operation of attachments. Attachment...
  • Page 39 SK752 Operator’s Manual Prepare - 38 Connect Attachment 7. Ensure pins are engaged by rotating attachment down. t43om007w.eps...
  • Page 40 SK752 Operator’s Manual Prepare - 39 Connect Attachment Hydraulic Hoses If attachment requires hydraulic power for operation, connect hydraulic hoses. Pressurized fluid or air could pierce skin and cause severe injury. Refer to operator’s manual for proper use. To help avoid injury: •...
  • Page 41 SK752 Operator’s Manual Prepare - 40 Connect Attachment...

  • Page 42: Drive

    SK752 Operator’s Manual Drive - 41 Drive Chapter Contents Start Unit ....... . . 42 Drive .

  • Page 43: Start Unit

    SK752 Operator’s Manual Drive - 42 Start Unit Start Unit 1. Ensure all controls are in neutral. 2. Set parking brake. 3. Move throttle to half open. 4. Turn ignition switch to start position and release when engine starts. NOTICE: •...

  • Page 44: Drive

    SK752 Operator’s Manual Drive - 43 Drive Drive General Operation Tipover possible. Machine can tip over and crush you. To help avoid injury: • Always operate with load end uphill. • Always carry load low. High load can cause tipping, loss of load or loss of visibility.

  • Page 45: Safe Slope Operation

    SK752 Operator’s Manual Drive - 44 Drive Safe Slope Operation Tipover possible. Machine can tip over and crush you. To help avoid injury: • Always operate with load end uphill. • Always carry load low. High load can cause tipping, loss of load or loss of visibility.

  • Page 46: Shut Down

    SK752 Operator’s Manual Drive - 45 Shut Down Shut Down 1. Lower lift arms to ground. 2. Move all controls to neutral position. 3. Turn ignition switch to STOP. 4. Remove key.
  • Page 47 SK752 Operator’s Manual Drive - 46 Shut Down...

  • Page 48: Transport

    SK752 Operator’s Manual Transport - 47 Transport Chapter Contents Lift ........48 •...

  • Page 49: Lift

    SK752 Operator’s Manual Transport - 48 Lift Lift Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. To help avoid injury: Only lift unit without attachment installed. Points Lifting points are identified by lifting decals.

  • Page 50: Haul

    SK752 Operator’s Manual Transport - 49 Haul Haul Load Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. To help avoid injury: • Load and unload trailer on level ground.

  • Page 51: Tie Down

    SK752 Operator’s Manual Transport - 50 Haul Tie Down Points Tiedown points are identified by tiedown decals. Securing to truck or trailer at other points is unsafe and can damage machinery. Procedure Loop tiedowns around unit at tiedown points. Make sure tiedowns are tight before transporting.

  • Page 52: Unload

    SK752 Operator’s Manual Transport - 51 Haul Unload Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away. To help avoid injury: • Load and unload trailer on level ground.

  • Page 53: Retrieve

    SK752 Operator’s Manual Transport - 52 Retrieve Retrieve Read operator’s manual. Know how to use all controls. Your safety is at stake. 273-475 Under normal conditions, unit should not be towed. If unit breaks down and retrieval is necessary: •...
  • Page 54 SK752 Operator’s Manual Transport - 53 Retrieve 3. Loosen bypass valves (shown) three turns. IMPORTANT: Open bypass valves in both front and rear pumps. NOTICE: When bypass valves are open, unit has no brakes. t46om005w.eps Return Unit to Normal Operation 1.
  • Page 55 SK752 Operator’s Manual Transport - 54 Retrieve...

  • Page 56: Complete The Job

    SK752 Operator’s Manual Complete the Job - 55 Complete the Job Chapter Contents Rinse Equipment ......56 Disconnect Attachment .
  • Page 57 SK752 Operator’s Manual Complete the Job - 56 Rinse Equipment Rinse Equipment 1. Spray water onto equipment to remove dirt and mud. NOTICE: Do not spray water onto operator’s console. Electrical components could be damaged. Wipe down instead. 2. Open hood and allow unit to cool. Remove debris from inside of unit.

  • Page 58: Service

    SK752 Operator’s Manual Service - 57 Service Chapter Contents Precautions ......58 •...

  • Page 59: Precautions

    SK752 Operator’s Manual Service - 58 Precautions Precautions Read operator’s manual. Know how to use all controls. Your safety is at stake. 273-475 To help avoid injury: • Unless otherwise instructed, all service should be performed with engine off. •...

  • Page 60: Recommended Lubricants/Service Key

    Service intervals listed are for minimum requirements. In extreme conditions, service machine more frequently. Use only genuine Ditch Witch parts, filters, approved lubricants, TJC, and approved coolants to maintain warranty. Fill to capacities listed in “Specifications” on page 79.

  • Page 61: Engine Oil Temperature Chart

    Add or replace only with coolant meeting this specification, such as Fleetguard ES Compleat coolant. This coolant is available, pre-diluted, from your Ditch Witch dealer as part number 255-1055. Contact your Cummins CES 14603 service partner for a full list of approved coolants meeting NOTICE: •...
  • Page 62 Extra attention is needed when using biodiesel, especially when operating in cold weather or storing fuel. Contact your Ditch Witch dealer or the engine manufacturer for more information. Less Regulated Markets (Outside the U.S., Canada, EU, and Japan) This engine is designed to run on diesel fuel.

  • Page 63: Hour

    SK752 Operator’s Manual Service - 62 Startup/10 Hour Startup/10 Hour Location Task Notes Check engine oil level Check hydraulic fluid level Check brake operation Check lug nut torque 88-95 ft•lb (108-129 N•m) Check track tension Check engine coolant level DEAC...
  • Page 64 SK752 Operator’s Manual Service - 63 Startup/10 Hour Check Hydraulic Fluid Level Check hydraulic fluid level at startup and every 10 hours. Maintain fluid level at halfway point on sight glass (2), when engine is off, cylinders are fully retracted, and fluid is cool. If low, add THF at fill (1).
  • Page 65 SK752 Operator’s Manual Service - 64 Startup/10 Hour Check Track Tension Check track tension at startup and every 10 hours and adjust as needed. Adjust track tension using one of the two methods below, depending on machine configuration. Straight Edge Adjustment...
  • Page 66 SK752 Operator’s Manual Service - 65 Startup/10 Hour Check Coolant Level Check coolant level, with engine cool, at overflow bottle at startup and every 10 hours. Maintain coolant level at halfway point on bottle. If low, add approved coolant. IMPORTANT: See page 60 for information on approved coolants.
  • Page 67 SK752 Operator’s Manual Service - 66 Startup/10 Hour Check Hydraulic Hoses Pressurized fluid or air could pierce skin and cause severe injury. Refer to operator’s manual for proper use. 270-6035 To help avoid injury: • Before disconnecting a hydraulic line, turn engine off and operate all controls to relieve pressure.

  • Page 68: Hour

    SK752 Operator’s Manual Service - 67 50 Hour 50 Hour Location Task Notes Change engine oil and filter initial Change hydraulic fluid filter initial Check fuel hose and clamp band Check radiator/hydraulic fluid cooler for dirt and debris Check lug nut torque 88-95 ft•lb (108-129 N•m)

  • Page 69: 50 Hour

    SK752 Operator’s Manual Service - 68 50 Hour Check Fuel Hose and Clamp Bands Check fuel hose and clamp bands every 50 hours. If the clamp is loose, apply oil to the threads and retighten it. If the hose is worn, replace it.
  • Page 70 SK752 Operator’s Manual Service - 69 150 Hour 150 Hour Location Task Notes Change engine oil and filter 4.2 qt (4 L) DEO Check fan belt tension and damage 1/4-1/3” (7-9 mm) Change Engine Oil and Filter Change engine oil and filter every 150 hours.
  • Page 71 SK752 Operator’s Manual Service - 70 300 Hour 300 Hour Location Task Notes Check air intake line 1/4-1/3” (7-9 mm) Check hydraulic filter Check lug nut torque 88-95 ft•lb (108-129 N•m) Check idler roller bearings Check Intake Air Line Check the intake air line every 300 hours.
  • Page 72 SK752 Operator’s Manual Service - 71 300 Hour Check Lug Nut Torque Check lug nut torque at initial intervals and every 200 hours thereafter. Tighten to 88-95 ft•lb (108- 129 N•m) as needed. t35om036w.eps Check Idler Roller Bearings Check for proper idler roller bearing positioning by lifting unit off of the ground and rocking each hub to check for movement.

  • Page 73: Hour

    Change filters every 600 hours. If you refuel from cans, replace filter more often. The canister filter is located in the engine compartment. The inline filter is located under the control console. ® See parts manual or contact your Ditch Witch dealer for correct replacement filter. t35om028w.eps t35om030w.eps...

  • Page 74: Hour

    SK752 Operator’s Manual Service - 73 900 Hour Change Hydraulic Fluid and Filter Change hydraulic fluid and filter every 600 hours. Change every 250 hours if jobsite temperature exceeds 100°F (38°C) more than 50% of the time. 1. Remove drain plug (3).

  • Page 75: 1200 Hour

    SK752 Operator’s Manual Service - 74 1200 Hour 1200 Hour Change Engine Coolant Drain cooling system at drain (2). Add approved coolant at fill (1) every two years or 1200 hours. NOTICE: • The use of non-approved coolant may lead to engine damage or premature engine failure and will void engine warranty.
  • Page 76 SK752 Operator’s Manual Service - 75 As Needed Adjust Idler Roller Bearings Adjust idler roller bearings to keep dirt, grass, and other foreign matter from damaging bearings as needed when hubs become loose. 1. Release track tension. See See “Check Track Tension”...
  • Page 77 SK752 Operator’s Manual Service - 76 As Needed Check Battery Check battery as needed. Keep battery clean and terminals free of corrosion. To clean: 1. Turn battery disconnect switch, if equipped, to the off position. 2. Ensure that no ignition sources are near batteries.
  • Page 78 SK752 Operator’s Manual Service - 77 As Needed Charge Battery Explosion possible. Serious injury or equipment damage could occur. Follow directions carefully. To help avoid injury: • Use a single 12V maximum source for charging. Do not connect to rapid chargers or dual batteries.
  • Page 79 SK752 Operator’s Manual Service - 78 As Needed Charging Procedure (Engine Off) 1. Park service vehicle close to disabled equipment but do not allow vehicles to touch. Engage parking brake in both vehicles. 2. Turn the ignition switch to the OFF position in both vehicles, and turn off all electrical loads. Disconnect the machine controller.

  • Page 80: Specifications

    SK752 Operator’s Manual Specifications - 79 SK752 Basic Unit Specifications SK752 Basic Unit Dimensions U.S. Metric Hinge pin height, max 83 in 2108 mm Operating height, max, standard bucket 105 in 2667 mm Overall height of machine 57 in 1450 mm...
  • Page 81 SK752 Operator’s Manual Specifications - 80 SK752 Basic Unit Dimensions U.S. Metric Bucket rollback angle, ground level 25° 25° Bucket rollback angle, full height 90° 90° Dump angle, standard bucket at max dump height 35° 35° Bucket width, max 44 in...
  • Page 82 SK752 Operator’s Manual Specifications - 81 SK752 Power Specifications SK752 Power Specifications Power U.S. Metric Engine: Kubota D1105, diesel, EPA Tier 4, EU Stage IIIa Number of cylinders Displacement 1.12 L 68.5 in Bore 3.07 in 78 mm Stroke 3.09 in 78.4 mm...
  • Page 83 SK752 Operator’s Manual Specifications - 82 SK752 Power Specifications Countries in the European Union should have received a Declaration of Conformity (DOC) with this machine similar to the example below. The Charles Machine Works, Inc. PO Box 66 1959 West Fir Avenue...

  • Page 84: Support

    Return damaged parts to dealer for inspection and warranty consideration if in warranty time frame. Order genuine Ditch Witch replacement or repair parts from your authorized Ditch Witch dealer. Use of another manufacturer's parts may void warranty consideration.
  • Page 85 Defects will be determined by an inspection within thirty (30) days of the date of failure of the product or part by Ditch Witch Product Support (DWPS) or its authorized dealer. DWPS will provide the location of its inspection facilities or its nearest authorized dealer upon inquiry.

  • Page 88: Service Record

    SK752 Operator’s Manual Service Record - 87 Service Record Service Performed Date Hours...
  • Page 89 SK752 Operator’s Manual Service Record - 88 Service Performed Date Hours...

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