Ditch Witch 420sx Operator'S Manual Download Page 103

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Service - 102

420sx Operator’s Manual

10 Hour

Check Tire Pressure and Lugnuts

Check tire pressure at stem (2) every 10 hours. Use water-rinsable air gauge if tire ballast sealant fluid is
used.

Tighten lugnuts (1) to 95 ft•lb (129 N•m).

Check Air Filter Restriction Indicator

Check air filter restriction indicator every 10 hours. Check with engine running at idle and at full throttle.
Change air filter when yellow band reaches red line on indicator. See page 120.

Tire option

Maximum pressure

26 x 12.00-12 4-ply bar lug

20 psi (1.4 bar)

23 x 10.50-12 6-ply bar lug

32 psi (2.2 bar)

Summary of Contents for 420sx

Page 1: ...420sx Operator s Manual 053 1110 Issue 3 0 CMW...

Page 2: ...W Overview Chapter Contents Serial Number Location 2 Intended Use 3 Unit Components 4 Tractor 4 Plow 5 Trencher 6 Drill 7 Reel Carrier 8 Operator Orientation 9 About This Manual 9 Bulleted Lists 9 Num...

Page 3: ...Serial Number Location CMW Serial Number Location Record serial numbers and date of purchase in the spaces provided Date of manufacture Date of purchase H401 trencher serial number 1 420sx tractor ser...

Page 4: ...ier specialized rear reel carrier light kit and Roto Witch drilling attachment The unit is designed for operation in temperatures typically experienced in excavation and construction work environments...

Page 5: ...Manual Unit Components CMW Unit Components Tractor 1 Folding Rollover Protective Structure ROPS 2 Control console 3 Engine compartment 4 Articulation joint 5 Frame lock 6 Trencher attachment 7 Drillin...

Page 6: ...or s Manual Overview 5 Unit Components CMW Plow 1 Balance spring assembly 2 Vibrator 3 Feed tube 4 Skid shoe 5 Upper over travel bumper 6 Lift trolley 7 Lower over travel bumper 8 Sod cutter optional...

Page 7: ...Overview 6 420sx Operator s Manual Unit Components CMW H401 Trencher 1 Digging chain 2 Trench cleaner optional 3 Restraint bar 4 Boom...

Page 8: ...420sx Operator s Manual Overview 7 Unit Components CMW Drill 1 Coupler 2 Zerk 3 U joint...

Page 9: ...Overview 8 420sx Operator s Manual Unit Components CMW Reel Carrier 1 Front reel carrier 2 Front cable guide 3 ROPS cable guide 4 Dual reel carrier 5 Rear cable guide...

Page 10: ...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 procedures that...

Page 11: ...Overview 10 420sx Operator s Manual About This Manual CMW...

Page 12: ...t 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 Attn Marketin...

Page 13: ...006 2007 2008 by The Charles Machine Works Inc Ditch Witch CMW AutoCrowd Modularmatic Jet Trac Roto Witch Subsite Fluid Miser Perma Soil Power Pipe Super Witch Super Witch II Pierce Airrow The Undergr...

Page 14: ...se them 25 Operation Overview an overview for completing a job with this machine planning setting up installing product and restoring the jobsite with cross references to detailed procedures 39 Prepar...

Page 15: ...ons for this machine including lubrication replacement of wear items and basic maintenance 93 Specifications machine specifications including weights measurements power ratings and fluid capacities 12...

Page 16: ...ontents Guidelines 16 Safety Alert Classifications 17 Safety Alerts 18 Emergency Procedures 21 Electric Strike Description 21 If an Electric Line is Damaged 22 If a Gas Line is Damaged 23 If a Fiber O...

Page 17: ...zards and use correct tools and machinery safety equipment and work methods for jobsite Mark jobsite clearly and keep spectators away Wear personal protective equipment Review jobsite hazards safety a...

Page 18: ...levels DANGER WARNING and CAUTION Learn what each level means indicates an imminently hazardous situation which if not avoided will result in death or serious injury indicates a potentially hazardous...

Page 19: ...e 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 seri...

Page 20: ...t and killed or crushed Wear seat belt Improper control function could cause death or serious injury If control does not work as described in instructions stop machine and have it serviced Looking int...

Page 21: ...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 heari...

Page 22: ...e or kill Almost one third of work related electrocutions result from contact with less than 440 volts Most electric strikes are not noticeable but indications of a strike include power outage smoke e...

Page 23: ...ity 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 N...

Page 24: ...ot return to jobsite until given permission by emergency personnel and utility company If a Fiber Optic Cable is Damaged Do not look into cut ends of fiber optic or unidentified cable Vision damage ca...

Page 25: ...Safety 24 420sx Operator s Manual Emergency Procedures CMW...

Page 26: ...420sx Operator s Manual Controls 25 CMW Controls Chapter Contents Tractor 26 Gauges and Indicators 26 Controls 30 Attachment 35...

Page 27: ...dicator 2 Engine oil temperature indicator 3 Hydraulic fluid temperature indicator 4 Cold start wait indicator 5 Operator presence indicator 6 Attachment neutral indicator 7 Ground drive neutral indic...

Page 28: ...e oil temperature is too high If light remains on Turn off engine and let it cool Check fan belt tension Check for low engine oil level Check cooling fins for dirt and debris 3 Hydraulic fluid tempera...

Page 29: ...ench Roto Witch and plow on off switches are in the neutral position One of three indicators in the start interlock circuit IMPORTANT All three start interlock indicators must be on to start engine If...

Page 30: ...peration See Operation on page 66 10 Hourmeter Displays engine operating time Use engine operating times to schedule service 11 Voltmeter Displays system voltage Should show 12 14V with engine running...

Page 31: ...Diagnostic Tool EDT port 2 Throttle 3 Ground drive joystick 4 Cruise control 5 Seat belt 6 Operator presence switch 7 Frame lock 8 Seat slide adjustment 9 Parking brake 10 Horn 11 Ignition switch 12...

Page 32: ...r for diagnostic services 2 Throttle To increase engine speed push up To decrease engine speed pull down 3 Ground drive joystick To move forward push To move backward pull To turn left move toward fro...

Page 33: ...toward the rear is reverse When plowing or trenching allow unit to operate as fast as possible without overloading engine When drilling use control to adjust speed instead of joystick to reduce the r...

Page 34: ...ock position and secure with keeper pin NOTICE Always lock articulation joint when transporting the tractor on a trailer or lifting the tractor for service or repair 8 Seat slide lever To slide seat f...

Page 35: ...t on first attempt check that all interlock requirements have been met return switch to STOP and try again 12 Auxiliary power outlet optional Provides power for other equipment Power output is 12V 5A...

Page 36: ...ntrols CMW Attachment Controls 1 Plow lift control 2 Boom lift control 3 Plow vibrator switch 4 Trench Roto Witch mode select switch optional 5 Drill direction chain reverse switch optional 6 Attachme...

Page 37: ...sition in order to start engine 4 Trench Roto Witch mode select switch optional To operate in Roto Witch mode set switch to the RW position To start trencher in forward set switch in the trench positi...

Page 38: ...ckwise rotation position In trench mode To reverse direction of digging chain press and hold either top or bottom of switch Switch returns to center when released IMPORTANT Switch must be in the cente...

Page 39: ...Controls 38 420sx Operator s Manual Attachment Controls CMW...

Page 40: ...420sx Operator s Manual Operation Overview 39 CMW Operation Overview Chapter Contents Planning 40 Plowing 40 Trenching 40 Drilling 41 Leaving Jobsite 41...

Page 41: ...See page 89 6 Check supplies and prepare equipment See page 48 7 Haul equipment to jobsite See page 57 Plowing 1 Start unit See page 50 2 Position tractor and controls See page 65 3 Attach product Se...

Page 42: ...and position tractor See page 79 4 Begin drilling See page 80 5 Use drill string guide as needed See page 80 6 Add rod See page 81 7 Backream See page 81 8 Shut down tractor See page 52 9 Disassemble...

Page 43: ...Operation Overview 42 420sx Operator s Manual Leaving Jobsite CMW...

Page 44: ...ne Call Services 44 Arrange for Traffic Control 44 Plan for Emergency Services 44 Inspect Site 45 Identify Hazards 45 Classify Jobsite 46 Inspect Jobsite 46 Select a Classification 46 Apply Precaution...

Page 45: ...ons or proposed work that may be taking place at the same time Notify One Call Services Call area One Call or similar services and have existing lines located and marked Call any utilities in your are...

Page 46: ...y Jobsite on page 46 Jobsite hazards could cause death or serious injury Use correct equipment and work methods Use and maintain proper safety equipment NOTICE Wear personal protective equipment inclu...

Page 47: ...operator sweep area within 20 6 m to each side of trench path Verify previously marked line and cable locations Mark location of all buried utilities and obstructions Classify jobsite Select a Classi...

Page 48: ...ff while work is in progress Have gas company test lines before returning them to service Crystalline Silica Quartz Dust Precautions Follow OSHA or other guidelines for exposure to crystalline silica...

Page 49: ...charge engine oil Condition and Function digging chain and teeth fan belts light bulbs filters air oil hydraulic tires pumps and motors hoses and valves signs guards and shields Accessories Fire Exti...

Page 50: ...420sx Operator s Manual Drive 49 CMW Drive Chapter Contents Start Unit 50 Drive 52 Shut Down 52...

Page 51: ...use equipment correctly NOTICE Read operator s manual before operating equipment Follow instructions carefully Contact your Ditch Witch dealer for operation information or demonstration Wear hard hat...

Page 52: ...on switch all the way clockwise to start tractor Warning alarm will sound Indicators will light If engine does not crank check gauge panel to verify that start interlock requirements have been met See...

Page 53: ...ke 4 Lower all attachments to ground 5 Move throttle to idle for 3 minutes to cool 6 Turn ignition switch to STOP If leaving machine unattended remove key 7 For maintenance or long term storage turn b...

Page 54: ...420sx Operator s Manual Transport 53 CMW Transport Chapter Contents Lift 54 Points 54 Procedure 55 Haul 57 Tie Down 60 Points 60 Procedure 60 Tow 61...

Page 55: ...lifting decals Lifting at other points is unsafe and can damage machinery Crushing weight If load falls or moves it could kill or crush you Use proper procedures and equipment or stay away Incorrect p...

Page 56: ...Lift CMW Procedure Tractor Use a crane capable of supporting the equipment s size and weight See Specifications on page 129 Engage frame lock See page 33 Use indicated lift points Do not attempt to li...

Page 57: ...and weight See page 129 or measure and weigh equipment before lifting Reel Carrier Use crane capable of supporting the equipment s size and weight See page 129 or measure and weigh equipment before li...

Page 58: ...to come on in synchronization with tow vehicle brakes 8 Check ramps and trailer bed for cracks Hitch Trailer 1 Back tow vehicle to trailer 2 Put manual transmission into first or reverse gear or auto...

Page 59: ...shutdown procedures 11 Engage frame lock 12 Attach chains to tractor and attachments where tie down decals are located See page 60 Crushing weight If load falls or moves it could kill or crush you Us...

Page 60: ...ise or remove plow blade 9 Disengage parking brake 10 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 st...

Page 61: ...tie down decals Securing to trailer at other points is unsafe and can damage machinery Procedure Attach chains at front and rear tie down points Make sure chains are tight before transporting unit In...

Page 62: ...s unit weight Procedure 1 Attach tow line to all available tie down points facing towing vehicle 2 Turn hydrostat bypass valve 90 clockwise to open valve 3 Fasten seat belt 4 Disengage parking brake 5...

Page 63: ...Transport 62 420sx Operator s Manual Tow CMW...

Page 64: ...420sx Operator s Manual Plow 63 CMW Plow Chapter Contents Setup 64 Position Tractor 65 Attach Product 65 Operation 66 Operating Tips 69...

Page 65: ...Comply with all utility notification regulations before plowing digging or drilling Incorrect procedures can result in death injury or property damage Learn to use equipment correctly NOTICE Use attac...

Page 66: ...r operating procedures 4 Engage parking brake 5 Lower plow blade to starting point of path 6 Turn ignition switch to STOP Attach Product To Pull Product 1 Insert material into pulling grip 2 Tape grip...

Page 67: ...ting high voltage cable can cause electrocution Expose lines by hand before digging Incorrect procedures could result in death injury or property damage Learn to use equipment correctly NOTICE Comply...

Page 68: ...id shoes should be in full contact with the ground 10 Increase engine speed to a point with the least tractor vibration and the highest ground drive speed possible without tire slippage NOTICE Move sl...

Page 69: ...w to just below ground level 15 Turn vibrator switch to OFF 16 Raise the plow blade out of the ground 17 Turn ignition switch to STOP and remove product from plow 18 Start tractor and drive a short di...

Page 70: ...d lowering the plow to prevent excess bending of material Check material for damage during plowing Run continuity checks on electric cable and check pipe pressure Damage can result from improper opera...

Page 71: ...Plow 70 420sx Operator s Manual Operating Tips CMW...

Page 72: ...420sx Operator s Manual Trench 71 CMW Trench Chapter Contents Setup 72 Operation 73 Operating Tips 75...

Page 73: ...switch to STOP Crushing weight could cause death or serious injury Use proper procedures and equipment or stay away NOTICE Use attachments or counterweights to make front and rear loads balance when a...

Page 74: ...y Know location of lines and stay away NOTICE Cutting high voltage cable can cause electrocution Expose lines by hand before digging Incorrect procedures could result in death injury or property damag...

Page 75: ...te move ground drive control to neutral 11 Adjust throttle to low idle 12 Raise boom 13 As boom clears top of trench move trench Roto Witch switch to neutral 14 Drive away from work site 15 Shut down...

Page 76: ...Operating Tips CMW Operating Tips Operate engine at full throttle when digging conditions permit Use correct length boom See your Ditch Witch dealer for more information Do not make sharp turns Lower...

Page 77: ...Trench 76 420sx Operator s Manual Operating Tips CMW...

Page 78: ...nual Drill 77 CMW Drill Chapter Contents Prepare Jobsite and Equipment 79 Approach Trench 79 Target Trench 79 Drill Rod and Equipment 79 Drill 80 Using Drill String Guide 80 Add Rod 81 Backream 81 Dis...

Page 79: ...njury Use correct equipment and work methods Use and maintain proper safety equipment NOTICE Set up warning barriers and keep people away from equipment and jobsite while drilling Incorrect procedures...

Page 80: ...cutting end of the drill string 3 Put drill string in approach trench 4 Move tractor to the approach trench and align the drilling attachment with the intended bore path 5 Turn off engine 6 Attach dri...

Page 81: ...the bore path After drilling 5 1 5 m stop unit and remove drill string guide Do not use drill string guide during backreaming or any time the drill string is being pulled back IMPORTANT For location...

Page 82: ...tion switch to STOP 2 Replace drill bit with backreamer 3 Start tractor engine and begin clockwise rotation 4 Slowly back up tractor while maintaining rotation 5 When backreamer exits the bore hole st...

Page 83: ...Drill 82 420sx Operator s Manual Disassemble Joints CMW Disassemble Joints 1 Press tab through hole in female side of joint using special tool or screwdriver 2 Pull rods apart...

Page 84: ...Optional Equipment 84 420sx Tractor 84 H401 Trenching Attachment 84 Roto Witch Drilling Attachment 84 Counterweights 85 Roll Over Protective Structure 86 Plow Blades 87 Plow Trolley Mounting 88 Chain...

Page 85: ...actor tires 26 or 23 are available dual wheels distributes weight of unit across jobsite surface counterweights required to balance unit configured with optional attachments reel carrier mounted on th...

Page 86: ...eded with your machine configuration Front Attachment Tire Size Counterweight Required none 23 x 10 50 12 none 26 x 12 00 12 none reel carrier 23 x 10 50 12 rear weight plate kit p n 190 1149 26 x 12...

Page 87: ...ith the ROPS folded down only when driving under an obstruction When the ROPS is in the down position drive with extreme caution on level ground DO NOT fasten the seat belt when the ROPS is in the fol...

Page 88: ...Use the plow blade most appropriate for the type of material being installed Contact your Ditch Witch dealer for information about the most effective blade for your jobsite conditions Blade Types Type...

Page 89: ...tor differently for large and small tires NOTICE Operating the plow with the trolley mounted improperly will reduce plow performance and could cause permanent damge to plow attachment Apply thread loc...

Page 90: ...chain wear and failure Maintain the proper amount of tension on the digging chain Overtightening will cause chain stretch and loss of machine performance For correct tightening procedure see page 108...

Page 91: ...ed Chain Sandy Soil Soft Soil Medium Soil Hard Soil Rocky Soil Sticky Soil 4 pitch cup tooth 3 1 2 3 4 1 2 pitch cup tooth 2 3 1 1 3 4 bolt on adaptor 2 pitch 4 4 3 2 1 4 bolt on adaptor cup tooth com...

Page 92: ...420sx Operator s Manual Complete the Job 91 CMW Complete the Job Chapter Contents Restore Jobsite 92 Rinse Equipment 92 Stow Tools 92...

Page 93: ...oduct is installed return spoils to the trench Rinse Equipment Spray water onto equipment to remove dirt and mud Stow Tools Make sure all tools and accessories are loaded on trailer NOTICE Do not spra...

Page 94: ...rvice 93 Service Chapter Contents Service Precautions 94 Lubrication Overview 96 Recommended Lubricants Service Key 97 Engine Oil Selection Chart 98 10 Hour 99 50 Hour 106 250 Hour 113 500 Hour 114 10...

Page 95: ...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 instru...

Page 96: ...ition if equipped before welding to prevent damage to battery Do not turn off battery disconnect switch with engine running or alternator and other electronic devices may be damaged Connect welder gro...

Page 97: ...Service 96 420sx Operator s Manual Lubrication Overview Lubrication Overview...

Page 98: ...Item Description DEO Diesel engine oil meeting API service classification CF 4 or E1 96 and SAE viscosity recommended by engine manufacturer SAE 15W40 MPG Multipurpose grease meeting ASTM D217 and NL...

Page 99: ...ury or property damage Learn to use equipment correctly NOTICE Unless otherwise instructed all service should be performed with engine off frame lock engaged plow lowered and trencher lowered Refer to...

Page 100: ...w gearbox oil level MPL check when oil is cold Clean plow blade feed tube Check over travel bumpers Check plow arm pins and bushings Check plow attachment mounting bolts 240 ft lb 324 N m REEL CARRIER...

Page 101: ...keep oil level at highest line on dipstick Check Hydraulic Fluid Level With tractor level and attachments raised check fluid at sight glass 2 every 10 hours Fluid should be halfway up sight glass Add...

Page 102: ...nnecting a hydraulic line lower all attachments and turn engine off Lower block or support any raised component with a hoist Cover connection with heavy cloth and loosen connector nut slightly to reli...

Page 103: ...used Tighten lugnuts 1 to 95 ft lb 129 N m Check Air Filter Restriction Indicator Check air filter restriction indicator every 10 hours Check with engine running at idle and at full throttle Change ai...

Page 104: ...when oil is cold with vibrator level and skid shoes on ground Remove plow blade and sod cutter if necessary Oil should be halfway up sight glass 2 Add MPL as needed at fill 1 Clean Plow Feed Tube Cle...

Page 105: ...damage every 10 hours Replace as needed Check Plow Arm Pins and Bushings Check plow arm pins and bushings every 10 hours Replace bushings at first sign of wear Check Plow Attachment Mounting Bolts Ch...

Page 106: ...r Reel Carrier Mounting Bolts Check rear reel carrier mounting bolts every 10 hours Tighten bolts to 310 ft lb 420 N m Check Rear Reel Carrier Cable Guides Check rear reel carrier cable guides every 1...

Page 107: ...20sx Operator s Manual 10 Hour Trencher Lube Trencher Headshaft Motor Mount Wipe zerk clean and lube every 10 hours with 8 10 pumps of MPG Lube Trencher Pivot Stub Wipe zerk clean and lube every 10 ho...

Page 108: ...oth pattern Check chain every 10 hours Replace worn or broken chains If sidebars 2 are bent or loose on chain pins 3 chain spacers should be used to join sidebars For more efficient digging contact yo...

Page 109: ...ut 2 Roller Boom with Grease Cylinder With boom horizontal measure distance from bottom of boom to chain 2 When properly adjusted distance should be 1 5 2 0 40 50 mm To tighten chain remove plug and p...

Page 110: ...0 hours with 2 3 shots of MPG Location Task Notes TRACTOR Lube u joints MPG Check fan alternator belt tension 27 30 ft lb 36 40 N m Change hydraulic fluid filter initial Check air filter Vacuator valv...

Page 111: ...move tensioner pulley 1 Loosen socket bolt 2 and bolt 1 2 Use a prybar in slots 3 to move pulley 3 Tighten socket bolt 2 and bolt 1 4 Check belt tension and adjust as needed Change Hydraulic Fluid Fi...

Page 112: ...50 hours Replace if damaged The valve should close when the engine is running for proper operation Ensure that air filter cover is installed with valve at the 8 o clock position Clean Alternator Coole...

Page 113: ...ge 1 Open fill 1 to vent vibrator 2 Drain oil at drain plug 3 3 Replace plug and move plow vibrator to horizontal position with vibrator level and skid shoes on ground Remove plow blade and sod cutter...

Page 114: ...the direction of the fuel flow To change the filter 1 Remove fuel filter cover 2 Replace paper filter 3 Clean dirt from sealing surface of filter holder and filter cover 4 Replace and lightly lubrica...

Page 115: ...vel is at highest line on dipstick Capacity is 8 qt 7 6 L Location Task Notes TRACTOR Change engine oil and filter1 8 qt 7 6 L DEO Change primary fuel filter2 Change hydraulic fluid and filter 9 7 gal...

Page 116: ...Primary Fuel Filter Change primary fuel filter shown every 500 hours Change Hydraulic Fluid and Filter Change hydraulic fluid and filter every 500 hours 1 Remove plug 1 and drain fluid 2 Change filter...

Page 117: ...s Manual 500 Hour Check Differential Oil Level Check oil level at fill plug shown every 500 hours Add MPL as needed Check Ground Drive Gearbox Oil Level Check oil level at plug shown every 500 hours...

Page 118: ...brator 2 Drain oil at drain plug 3 3 Replace plug and move plow vibrator to horizontal position with vibrator level and skid shoes on ground Remove plow blade and sod cutter if necessary 4 Add MPL at...

Page 119: ...ge Differential Oil Change differential oil every 1000 hours To change oil 1 Remove plug 2 or remove cover and drain oil 2 Replace plug or install cover using high temp RTV silicone to seal mating sur...

Page 120: ...ean engine cooling system Change air filter elements Adjust parking brake Check battery Inspect muffler Inspect ROPS bolts TRENCHER Replace digging chain and sprocket PLOW Replace plow blade REEL CARR...

Page 121: ...r Filter Elements Change air filter when yellow band reaches red line on air filter service indicator To change 1 Remove air filter cover 4 and remove primary 3 and secondary 2 elements 2 Wipe inside...

Page 122: ...ng brake to test tension 4 Repeat 1 3 until parking brake is properly adjusted 5 Replace orange sleeve Check Battery This unit is equipped with a low maintenance 12V gel cell battery Keep battery case...

Page 123: ...Service 122 420sx Operator s Manual As Needed Inspect Muffler Inspect muffler for looseness as needed Inspect ROPS Bolts Check all frame bolts welds and retainer bolts and pins as needed...

Page 124: ...just seat belt 2 Start tractor See page 52 for proper start up procedures 3 Move attachment direction speed control until digging chain connector pin is on top of boom 4 Lower boom to ground 5 Engage...

Page 125: ...link 11 Unclamp links Slowly release cable and lower chain to ground 12 Lay chain on ground with teeth down Pressurized fluid could pierce skin and cause injury or death Stay away NOTICE Service digg...

Page 126: ...e control to reverse 6 Back unit up until chain extends past head shaft about 1 305 mm 7 Move ground drive control to neutral 8 Lower boom to horizontal position 9 Engage parking brake 10 Turn ignitio...

Page 127: ...plow so blade just clears the ground 2 Stop engine 3 Engage parking brake 4 Remove keeper pins 1 5 Remove lower plow blade pin 2 6 Support the plow blade 7 Remove the upper plow blade pin 8 Remove plo...

Page 128: ...er boss of the vibrator housing 10 Install the lower tapered pin and keeper pins 11 Lower vibrator until blade rests on ground 12 Stop engine Reel Carrier Check Reel Carrier Arms and Cable Guides Chec...

Page 129: ...Service 128 420sx Operator s Manual As Needed...

Page 130: ...ithout plow blade 123 in 3 12 m C Transport length with 18 plow blade 142 in 3 61 m Transport length with 18 plow blade and trencher with 2 boom 192 in 4 88 m Length plowing with trencher attachment 1...

Page 131: ...imensions are based on unit equipped with 26 x 12 12 tires unless otherwise specified Operation U S Metric Operator orientation side seat position provides full view of front and rear work areas Groun...

Page 132: ...w 15 psi 1 bar bypass 10 micron nominal Power Train Ground drive transmission hydrostatic drive infinitely variable from zero to maximum joystick operated speed direction control Differentials Dana mo...

Page 133: ...down 59 59 Headshaft speed low 175 rpm 175 rpm Headshaft speed high 225 rpm 225 rpm Digging chain speed low 245 ft min 75 m min Digging chain speed high 315 ft min 96 m min Centerline of trench to out...

Page 134: ...t should be weighed and measured Due to selected options delivered equipment may not necessarily match that described Roto Witch Bore diameter 1 75 12 in 45 305 mm Motor displacement 18 7 in3 5 m3 Tor...

Page 135: ...Specifications 134 420sx Operator s Manual 420sx...

Page 136: ...chase 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 U...

Page 137: ...including any warranty of fitness for a particular purpose and merchantability IF THE PRODUCTS ARE PURCHASED FOR COMMERCIAL PURPOSES AS DEFINED BY THE UNIFORM COMMERCIAL CODE THEN THERE ARE NO WARRANT...

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Page 140: ...420sx Operator s Manual Service Record 139 CMW Service Record Service Performed Date Hours...

Page 141: ...CMW Service Record 140 420sx Operator s Manual Service Performed Date Hours...

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