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Ditch Witch SK752, Operator'S Manual

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Ditch Witch SK752 Operator'S Manual Download 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.

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. If adjustment is 
needed, see “Adjust Idler Roller Bearings” on 
page 75. 

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Summary of Contents for SK752

Page 1: ...SK752 Operator s Manual 053 2859 Issue 2 0 Original Instruction...

Page 2: ...ator s Manual Overview 1 Overview Chapter Contents Serial Number Location 2 Intended Use 3 Equipment Modification 3 Unit Components 4 Operator Orientation 5 About This Manual 6 Bulleted Lists 6 Number...

Page 3: ...al Number Location Serial Number Location Record serial numbers and date of purchase in spaces provided Unit serial number is located as shown Item date of manufacture date of purchase unit serial num...

Page 4: ...se in any other way is considered contrary to the intended use The SK752 should be operated serviced and repaired only by persons familiar with its particular characteristics and acquainted with the r...

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

Page 6: ...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 1 2 3 4...

Page 7: ...iew pages for basic operating procedures Cross references such as See page 50 will direct you to detailed procedures Bulleted Lists Bulleted lists provide helpful or important information or contain p...

Page 8: ...opy 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 Attn Marketing D...

Page 9: ...umber 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 c...

Page 10: ...lation path if needed preparing the jobsite for work and connecting attachments 31 Drive procedures for startup cold start driving and shutdown 41 Transport procedures for lifting hauling and towing 4...

Page 11: ...Contents 10 SK752 Operator s Manual...

Page 12: ...lifornia Proposition 65 Warning 12 Emergency Procedures 13 Electric Strike Description 13 If an Electric Line is Damaged 14 If a Gas Line is Damaged 15 If a Fiber Optic Cable is Damaged 16 If Machine...

Page 13: ...tive equipment Review jobsite hazards safety and emergency procedures and individual responsibilities with all personnel before work begins Safety videos are available from your Ditch Witch dealer or...

Page 14: ...ow voltage current can injure or kill Many work related electrocutions result from contact with less than 440 volts Most electric strikes are not noticeable but indications of a strike include power o...

Page 15: ...y company to shut off power Do not return to jobsite or allow anyone into area until given permission by utility company If you suspect an electric line has been damaged and you are off tractor DO NOT...

Page 16: ...ckly Warn others that a gas line has been cut and that they should leave the area Leave jobsite as quickly as possible Immediately call your local emergency phone number and utility company If jobsite...

Page 17: ...ches 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...

Page 18: ...els DANGER WARNING and CAUTION Learn what each level means indicates a hazardous situation that if not avoided will result in death or serious injury This signal word is to be limited to the most extr...

Page 19: ...site hazards could cause death or serious injury Use correct equipment and work methods Use and maintain proper safety equipment 274 050 274 724 2P 2 Lift point See Transport chapter for more informat...

Page 20: ...arter fluid 273 459 2P 274 206 2P 700 206 2P 6 Tiedown location See Transport chapter for more information 274 318 7 Crushing weight Place cylinder lock on extended cylinder and secure 273 413 8 Read...

Page 21: ...Safety 20 SK752 Operator s Manual Machine Safety Alerts...

Page 22: ...SK752 Operator s Manual Controls 21 Controls Chapter Contents Gauges and Indicators 22 Controls 24 Engine Compartment 28 Attachment Plate 29...

Page 23: ...button 2 Engine coolant temperature gauge 3 Engine oil pressure indicator 4 Hydraulic fluid temperature indicator 5 Hydraulic fluid level sight glass 6 Ignition switch 7 Hourmeter 8 Engine coolant te...

Page 24: ...button for 5 seconds If ambient temperature is below 20 F 7 C press and hold button for 10 seconds Do not press button for more than 20 seconds continuously 2 Engine coolant temperature gauge Displays...

Page 25: ...drive control or Track drive joystick optional 2 Right track drive control or Track drive joystick optional 3 Parking brake switch 4 Ignition switch 5 Lift arm control 6 Attachment drive control 7 Thr...

Page 26: ...backward pull To go faster in either direction move control farther from neutral To stop move to neutral To steer while moving forward push joystick forward then move left or right Unit will gradually...

Page 27: ...ve to left To curl attachment down move to right IMPORTANT Exercise caution when lifting loads See page 79 for operating capacities 6 Attachment drive control To engage attachment drive in reverse lif...

Page 28: ...d position forward or reverse lift lever lock move lever in desired direction and press pedal To return attachment drive control to neutral release pedal IMPORTANT Use foot pedal to hold attachment co...

Page 29: ...52 Operator s Manual Engine Compartment Engine Compartment 1 Battery disconnect switch Item Description Notes 1 Battery disconnect switch To connect turn clockwise To disconnect turn counterclockwise...

Page 30: ...cator To level bucket adjust bucket position until indicator is at top of sleeve To level other attachments adjust attachment position until it is level Mark indicator position on sleeve Use mark to i...

Page 31: ...Controls 30 SK752 Operator s Manual Attachment Plate...

Page 32: ...ion 32 All Jobs 32 Ground Penetrating Jobs 32 Above Ground Jobs 32 Inspect Site 33 Identify Hazards 33 Classify Jobsite 34 Select a Classification 34 Apply Precautions 35 Check Supplies and Prepare Eq...

Page 33: ...lations Plan for Emergency Services Have the telephone numbers for local emergency and medical facilities on hand Check that you will have access to a telephone Ground Penetrating Jobs Notify One Call...

Page 34: ...treams signs of utilities on jobsite and perimeter such as buried utility notices utility facilities without overhead lines gas or water meters junction boxes drop boxes light poles manhole covers sun...

Page 35: ...path with white paint and have underground utilities located before working Verify location of previously marked underground hazards Mark jobsite clearly and keep spectators away Remember jobsite is c...

Page 36: ...company test lines before returning them to service Crystalline Silica Quartz Dust Precautions Crystalline silica dust is a naturally occurring substance found in soil sand concrete granite and quart...

Page 37: ...63 filters air oil hydraulic tracks pumps and motors hoses and valves signs guards and shields Accessories Fire Extinguisher If required mount a fire extinguisher near the power unit but away from pos...

Page 38: ...achments can change the stability and operating characteristics of the unit See attachment operation manual for instructions regarding proper operation of attachments IMPORTANT Before connecting attac...

Page 39: ...Prepare 38 SK752 Operator s Manual Connect Attachment 7 Ensure pins are engaged by rotating attachment down t43om007w eps...

Page 40: ...ing 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 co...

Page 41: ...Prepare 40 SK752 Operator s Manual Connect Attachment...

Page 42: ...SK752 Operator s Manual Drive 41 Drive Chapter Contents Start Unit 42 Drive 43 General Operation 43 Safe Slope Operation 44 Shut Down 45...

Page 43: ...ols 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 Start and operate only from the platform Only operate...

Page 44: ...en on rough terrain Never drive across slopes Never jerk control levers Use a steady even motion Do not park unit on slope without lowering attachment to the ground returning all controls to neutral p...

Page 45: ...er be exceeded These maximums are stated below since they are design limits These design limits usually exceed the operating limits and must never be used alone to establish safe operating angle for v...

Page 46: ...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: ...Drive 46 SK752 Operator s Manual Shut Down...

Page 48: ...SK752 Operator s Manual Transport 47 Transport Chapter Contents Lift 48 Points 48 Procedure 48 Haul 49 Load 49 Tie Down 50 Unload 51 Retrieve 52...

Page 49: ...ist capable of supporting the equipment s size and weight See Specifications on page 79 or measure and weigh equipment before lifting Crushing weight If load falls or moves it could kill or crush you...

Page 50: ...ontrols are in neutral position 9 Turn ignition switch to STOP 10 Tie down unit Crushing weight If load falls or moves it could kill or crush you Use proper procedures and equipment or stay away To he...

Page 51: ...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 t...

Page 52: ...keep it low 6 Adjust throttle to low speed and slowly back unit down trailer or ramps Crushing weight If load falls or moves it could kill or crush you Use proper procedures and equipment or stay awa...

Page 53: ...do not tow for more than 100 30 m use no more than 1 300 lb 5800 N of towing force steering will be difficult Procedure 1 Block tracks 2 Engage parking brake shown if engine will start If it will not...

Page 54: ...Tighten bypass valves and tighten locknut to 15 18 ft lb 20 25 N m 2 Disengage parking brake or reassemble parking brake 3 Unblock tracks IMPORTANT Open bypass valves in both front and rear pumps NOTI...

Page 55: ...Transport 54 SK752 Operator s Manual Retrieve...

Page 56: ...SK752 Operator s Manual Complete the Job 55 Complete the Job Chapter Contents Rinse Equipment 56 Disconnect Attachment 56 Stow Tools 56...

Page 57: ...ake pin area Disconnect Attachment 1 Lower attachment to the ground 2 Turn off engine 3 Disengage lock pins by lifting handles upward 4 Cycle attachment drive control and disconnect hydraulic hoses if...

Page 58: ...er Contents Precautions 58 Working under Raised Lift Arms 58 Welding Precaution 58 Recommended Lubricants Service Key 59 Engine Oil Temperature Chart 60 10 Hour 62 50 Hour 67 150 Hour 69 300 Hour 72 6...

Page 59: ...hments to ground Crushing weight Place cylinder lock on extended cylinder and secure 273 231 NOTICE Welding can damage electronics Disconnect battery to prevent damage to battery Do not turn off batte...

Page 60: ...4 CH 4 CI 4 or CJ 4 or ACEA E7 E6 E7 or E9 See viscosity chart DEO Less regulated markets outside the U S Canada EU Japan Diesel engine oil compatible with the sulfur content of the fuel used If the...

Page 61: ...uard ES Compleat coolant This coolant is available pre diluted from your Ditch Witch dealer as part number 255 1055 Contact your Cummins service partner for a full list of approved coolants meeting CE...

Page 62: ...approved for use in this unit The fuel used must meet the specifications for diesel fuel shown above In certain markets higher blends may be used if certain steps are taken Extra attention is needed...

Page 63: ...t top of marking If low add DEO at fill 2 Check with unit on level surface and at least 15 minutes after stopping engine Location Task Notes Check engine oil level DEO Check hydraulic fluid level THF...

Page 64: ...Check Brake Operation Check brake operation at startup and every 10 hours or more often when conditions warrant Ensure parking brake pin shown moves freely allowing brake to be engaged and disengaged...

Page 65: ...ont idler roller 3 Clean track cylinder zerk 1 Pump MPG into zerk until distance between track and straight edge 2 is 1 2 13 mm 4 Test Drive forward one track length and check tension again If tension...

Page 66: ...le at startup and every 10 hours Maintain coolant level at halfway point on bottle If low add approved coolant Check Engine Air Filter Service Indicator Check air filter service indicator shown at sta...

Page 67: ...te 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 Catch all...

Page 68: ...qt 4 7 L of DEO at fill 2 Change Hydraulic Filter initial Change hydraulic filter after 50 hours Location Task Notes Change engine oil and filter initial Change hydraulic fluid filter initial Check f...

Page 69: ...eck radiator hydraulic fluid cooler for dirt grass and other foreign matter every 50 hours Clean out with compressed air or spray wash if required Be careful not to damage fins with high pressure air...

Page 70: ...ion and Damage Check belt tension every 150 hours Belt is properly tensioned when it moves about 1 4 3 8 7 9 mm when pushed at the long span Replace the belt when it is worn and sinks into the pulley...

Page 71: ...retighten it If the hose appears cracked or worn replace it Change Hydraulic Filter Change hydraulic filter every 300 hours Location Task Notes Check air intake line 1 4 1 3 7 9 mm Check hydraulic fi...

Page 72: ...200 hours thereafter Tighten to 88 95 ft lb 108 129 N m as needed Check Idler Roller Bearings Check for proper idler roller bearing positioning by lifting unit off of the ground and rocking each hub t...

Page 73: ...ce 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 rep...

Page 74: ...L Change Fan Belt Change fan belt every 600 hours Belt is properly tensioned when it moves about 1 4 3 8 7 9 mm when pushed at the long span shown To change 1 Loosen alternator bolt 1 2 Replace fan be...

Page 75: ...es 2 2 Remove primary element 3 3 Wipe inside of housing and end cup 2 and clean dust ejector valve 4 Insert new secondary element if necessary and ensure it is seated correctly 5 Insert new primary e...

Page 76: ...the castle nut 2 4 Hand tighten the castle nut 5 Insert the cotter pin 4 into the wheel spindle 5 6 Bend the legs of the cotter pin over the top of the spindle 7 Clean the lip seal on the bearing cap...

Page 77: ...negative cable first 4 Clean cable clamps and terminals to remove dull glaze 5 Check for signs of internal corrosion in cables 6 Connect battery cable clamps positive cable first 7 Tighten any loose c...

Page 78: ...tions carefully To help avoid injury Use a single 12V maximum source for charging Do not connect to rapid chargers or dual batteries Use caution and wear personal protective equipment such as safety e...

Page 79: ...e or frame ground on the disabled vehicle at least 12 305 mm from the failed battery as shown 7 Operate service vehicle engine at 1500 2000 rpm for a few minutes to build an electrical charge in the f...

Page 80: ...ength of loader no attachment 86 in 2190 mm Overall length of machine with standard bucket 105 in 2670 mm L2 Wheelbase track length 43 in 1 1 mm A2 Angle of departure 27 27 Ground clearance min center...

Page 81: ...5 mm Performance U S Metric Ground drive speed forward and reverse 4 8 mph 7 7 km h Ground pressure 7 180 mm tracks 5 2 psi 0 36bar Ground pressure 9 230 mm tracks 4 3 psi 0 29 bar Tipping capacity Th...

Page 82: ...ss power rating per SAE J1955 24 8 hp 18 5 kW Estimated net power rating per SAE 1348 23 1 hp 17 2 kW Rated engine speed 3000 rpm 3000 rpm Hydraulic System U S Metric Auxiliary double gear pump Flow r...

Page 83: ...ype Engine Power xxx kW Serial Number CMWXXXXXXXXXXXXXX Conforms to the requirements of 2006 42 EC Machinery Directive 2014 30 EU Electromagnetic Compatibility Directive 2000 14 EC Noise Emission Dire...

Page 84: ...ase 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...

Page 85: ...LITY IF THE PRODUCTS ARE PURCHASED FOR COMMERCIAL PURPOSES AS DEFINED BY THE UNIFORM COMMERCIAL CODE THEN THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE HEREOF AND THERE ARE NO IMPLIED WARRANTIE...

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Page 88: ...SK752 Operator s Manual Service Record 87 Service Record Service Performed Date Hours...

Page 89: ...Service Record 88 SK752 Operator s Manual Service Performed Date Hours...

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