KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A20001 and up) KOMATSU PC240LC-10 – PDF DOWNLOAD
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- KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual
- SERIAL NUMBER:A20001 and up
- PUBLICATION NUMBER:CEAM025102
Description
KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A20001 and up) KOMATSU PC240LC-10
KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:A20001 AND UP) KOMATSU PC240LC-10 – PDF DOWNLOAD:
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DESCRIPTION:
KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A20001 and up) KOMATSU PC240LC-10
- This manual provides rules and guidelines which will help you use this machine safely and effectively. The precautions in this manual must be followed at all times when performing operation and maintenance.
- Most accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. Accidents can be prevented by knowing beforehand conditions that may cause a hazard when performing operation and maintenance.
- Read, understand and follow all precautions and warnings in this manual and on the machine before operating and performing maintenance. Failure to do so may result in serious injury or death. Improper operation and maintenance of the machine can be hazardous and could result in serious injury or death.
TABLE OF CONTENTS:
KOMATSU PC240LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A20001 and up) KOMATSU PC240LC-10
FORWARD............................................................................................................. 6 SAFETY INFORMATION.................................................................................................. 7 Safety Labels................................................................................................... 8 INTRODUCTION........................................................................................................ 9 Directions of Machine........................................................................................... 9 Visibility from Operator’s Seat................................................................................. 9 Structure to Protect the Operator........................................................................... 9 Breaking-in The New Machine..................................................................................... 10 Product Information............................................................................................. 11 Product Identification Number (Pin)/Machine Serial No. Plate................................................ 11 EPA* Regulations, Engine Number Plate....................................................................... 11 Service Meter Location.......................................................................................... 12 Your Machine Serial Numbers And Distributor..................................................................... 12 Engine Acronyms................................................................................................. 12 TABLE OF CONTENTS................................................................................................... 13 SAFETY LABELS....................................................................................................... 24 Location Of Safety Labels....................................................................................... 24 Safety Labels................................................................................................... 25 GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE............................................................. 34 Precautions Before Starting Operation........................................................................... 34 Ensuring Safe Operation..................................................................................... 34 Understanding The Machine................................................................................... 34 Preparations For Safe Operation................................................................................. 34 Precautions Regarding Safety-related Equipment.............................................................. 34 Inspecting Machine.......................................................................................... 34 Clothing And Personal Protective Items.......................................................................... 34 Keep Machine Clean.............................................................................................. 35 Keep Operator's Compartment Clean............................................................................... 35 Fire Extinguisher And First Aid Kit............................................................................. 35 Safety Equipment................................................................................................ 35 If Problems Are Found........................................................................................... 35 Fire Prevention And Explosion Prevention........................................................................ 36 Action If Fire Occurs........................................................................................... 37 Handrails and Steps............................................................................................. 38 Mounting And Dismounting........................................................................................ 38 No Persons On Attachments....................................................................................... 38 Leaving Operator's Seat With Lock............................................................................... 39 Emergency Exit From Operator's Cab.............................................................................. 39 Do Not Get Caught In Work Equipment............................................................................. 40 Precautions Related To Protective Structures.................................................................... 40 Falling Objects, Flying Objects And Intruding Objects Prevention................................................ 40 Unauthorized Modification....................................................................................... 41 Precautions Related To Attachments And Options.................................................................. 41 Precautions Related To Cab Glass................................................................................ 41 Precautions When Running Engine Inside Building................................................................. 41 Safety At Jobsite............................................................................................... 42 Working On Loose Ground......................................................................................... 42 Distance To High Voltage Cables................................................................................. 42 Ensure Good Visibility.......................................................................................... 43 Signalman's Signal And Signs.................................................................................... 43 Asbestos Dust Hazard Prevention................................................................................. 44 SAFETY MACHINE OPERATION............................................................................................ 45 Starting Engine................................................................................................. 45 Checks Before Starting Engine............................................................................... 45 Safety Rules For Starting Engine............................................................................ 46 Starting Engine In Cold Weather............................................................................. 46 Starting Engine With Booster Cables......................................................................... 46 Operation....................................................................................................... 47 Checks Before Operation..................................................................................... 47 Safety Rules For Changing Machine Directions................................................................ 47 Safety Rules For Traveling.................................................................................. 48 Traveling On Slopes......................................................................................... 49 Operations On Slopes........................................................................................ 50 Prohibited Operations....................................................................................... 51 Operations On Snow Or Frozen Surfaces....................................................................... 53 Parking Machine............................................................................................. 53 TRANSPORTATION...................................................................................................... 54 Loading and Unloading........................................................................................... 54 Shipping the Machine............................................................................................ 54 TOWING.............................................................................................................. 55 Safety Rules For Towing......................................................................................... 55 LIFTING OBJECTS WITH BUCKET......................................................................................... 56 Safety Rules For Lifting Objects................................................................................ 56 SAFETY MAINTENANCE INFORMATION...................................................................................... 57 Warning Tag..................................................................................................... 57 Keep Work Place Clean And Tidy.................................................................................. 57 Select Suitable Place For Inspection And Maintenance............................................................ 57 Only Authorized Personnel....................................................................................... 57 Appoint Leader When Working With Others......................................................................... 57 Stop Engine Before Carrying Out Maintenance..................................................................... 58 Precautions When Working At High Places......................................................................... 58 Two Workers For Maintenance When Engine Is Running.............................................................. 59 Attachments..................................................................................................... 59 Work On Machine................................................................................................. 60 Work Under The Machine.......................................................................................... 60 Proper Tools.................................................................................................... 60 Battery Disconnect Switch....................................................................................... 61 Removing Battery Terminals...................................................................................... 61 Welding......................................................................................................... 61 Battery......................................................................................................... 61 Battery Hazard Prevention................................................................................... 61 When Using Hammer............................................................................................... 62 Precautions With High-temperature Coolant....................................................................... 62 Precautions With High-temperature Oil........................................................................... 63 Safety Rules For High-pressure Oil.............................................................................. 63 Precaution For High Fuel Pressure........................................................................... 63 Safety Handling High-pressure Hoses or Piping............................................................... 63 Precaution For High Voltage..................................................................................... 64 Noise........................................................................................................... 64 Safety First When Using High-pressure Grease To Adjust Track Tension............................................ 64 Do Not Disassemble Recoil Springs............................................................................... 65 Accumulator..................................................................................................... 65 Handling Gas Spring............................................................................................. 65 Precautions when using...................................................................................... 65 Precautions when discarding................................................................................. 66 Compressed Air.................................................................................................. 66 Air Conditioner Maintenance..................................................................................... 66 Waste Materials................................................................................................. 66 Select Window Washer Fluid...................................................................................... 66 Personnel....................................................................................................... 66 Periodic Replacement Of Safety Critical Parts................................................................... 67 MACHINE VIEW ILLUSTRATIONS.......................................................................................... 70 Overall Machine View............................................................................................ 70 General View of Cab............................................................................................. 72 CONTROLS AND GAUGES................................................................................................. 73 Machine Monitor................................................................................................. 74 EXPLANATION OF COMPONENTS........................................................................................... 75 Machine Monitor................................................................................................. 75 Basic Operation of Machine Monitor.......................................................................... 76 Warning Display............................................................................................. 81 Meter Display............................................................................................... 91 Gauges and Meter............................................................................................ 98 Monitor Switches Portion....................................................................................101 Handling Function Switches..................................................................................111 User Menu Selector Switch...................................................................................115 User Menu...................................................................................................116 Machine Settings............................................................................................127 Maintenance Screen Setting..................................................................................132 Monitor Setting.................................................................................................134 Screen Adjustment...........................................................................................134 Screen Adjustment (Camera)..................................................................................135 Clock Adjustment............................................................................................135 Time........................................................................................................137 SWITCHES............................................................................................................142 Starting Switch.................................................................................................142 Fuel Control Dial...............................................................................................143 Cigarette Lighter...............................................................................................143 Swing Lock Switch...............................................................................................143 Lamp Switch.....................................................................................................144 Horn Switch.....................................................................................................144 One Touch Power Max. Switch.....................................................................................144 Room Lamp Switch................................................................................................144 Emergency Pump Drive Switch.....................................................................................145 Swing Brake Cancel Switch.......................................................................................145 Ceiling Window Wiper Switch.....................................................................................146 Seat Heater Switch..............................................................................................146 Engine Shutdown Secondary Switch................................................................................147 CONTROL LEVERS AND PEDALS...........................................................................................148 Lock Lever......................................................................................................148 Travel Levers...................................................................................................149 Work Equipment Control Lever....................................................................................150 ROOF WINDOW.........................................................................................................152 WINDSHIELD..........................................................................................................152 EMERGENCY ESCAPE HAMMER.............................................................................................158 DOOR LOCK...........................................................................................................159 CAB DOOR HINGE......................................................................................................159 ENGINE HOOD.........................................................................................................160 When Opening (Normal Case: Intermediate Lock Position)..........................................................160 When Closing (Normal Case: Intermediate Lock Position)..........................................................162 CAPS AND COVERS WITH LOCK...........................................................................................164 Open and Close Caps with Lock...................................................................................164 Opening the Cap.............................................................................................164 Locking the Cap.............................................................................................164 Open and Close Covers with Lock.................................................................................165 Opening the Cover (Locked Cover)............................................................................165 Locking the Cover...........................................................................................165 Lock and Unlock Engine Hood.....................................................................................165 Opening the Hood (Locked Hood)..............................................................................165 Locking the Hood............................................................................................165 Lock and Unlock Cab Door........................................................................................166 Opening the Door (Locked Door)..............................................................................166 Locking the Door............................................................................................166 DRINK BOX...........................................................................................................167 MAGAZINE BOX........................................................................................................167 CUP HOLDER..........................................................................................................167 ASHTRAY.............................................................................................................168 AIR CONDITIONER CONTROLS............................................................................................169 Air Conditioner Control Panel...................................................................................169 Method of Operation.............................................................................................174 Automatic Operation.........................................................................................174 Stopping Automatic Operation................................................................................175 Manual Operation............................................................................................175 Stop Manual Operation.......................................................................................177 Operation with Cold Air to Face and Warm Air to Feet........................................................177 Defroster Operation.........................................................................................179 Rules for Using Air Conditioner.................................................................................181 Air Conditioner Maintenance.....................................................................................181 RADIO...............................................................................................................182 Control Panel...................................................................................................182 Operation Method................................................................................................184 Frequency Adjustment........................................................................................184 Frequency Adjustment (Auto Presetting)......................................................................184 Preset Call.................................................................................................184 Preset Memory...............................................................................................184 Sound Adjustment (Balance)..................................................................................184 Sound Adjustment (Treble)...................................................................................185 Sound Adjustment (Bass).....................................................................................185 Time Adjustment.............................................................................................185 Stowing Radio Antenna.......................................................................................185 AUXILIARY ELECTRIC POWER............................................................................................186 24 V Power Source...............................................................................................186 12 V Power Source...............................................................................................186 FUSE................................................................................................................187 FUSIBLE LINK........................................................................................................188 TOOL BOX............................................................................................................188 GREASE GUN HOLDER...................................................................................................188 FIRE EXTINGUISHER...................................................................................................188 BATTERY DISCONNECT SWITCH...........................................................................................189 SYSTEM OPERATING LAMP...............................................................................................190 HANDLING KOMATSU DIESEL PARTICULATE FILTER (KDPF)...................................................................191 Operation Procedure of Manual Stationary Regeneration...........................................................194 Komatsu Diesel Particulate Filter (KDPF) Regeneration Disable Procedure.....................................196 While Regeneration is not being Performed: Setting for Regeneration Disable.................................197 While Regeneration is being Performed: Stopping Regeneration................................................199 Komatsu Diesel Particulate Filter (KDPF) Regeneration Disable Cancel Procedure..............................200 Handling Komatsu Closed Crankcase Ventilation (KCCV)........................................................200 HANDLING MACHINES EQUIPPED WITH KOMTRAX.............................................................................201 Basic Precautions...............................................................................................202 MACHINE OPERATIONS AND CONTROLS.....................................................................................203 Before Starting Engine..........................................................................................203 Walk-around Checks..........................................................................................203 Checks Before Starting......................................................................................205 Adjustment..................................................................................................214 Seat Belt Inspection............................................................................................223 Seat Belt.......................................................................................................224 Operations Before Starting Engine...............................................................................225 STARTING ENGINE.....................................................................................................227 Turbo Protect Function..........................................................................................230 AFTER STARTING ENGINE...............................................................................................231 Engine Warm Up..................................................................................................233 Hydraulic System Warm-Up........................................................................................235 Operation After Completion Of Warming-Up Operation..............................................................241 STOPPING THE ENGINE.................................................................................................243 MACHINE OPERATION...................................................................................................244 Preparations for Moving the Machine.............................................................................244 Moving Machine Forward..........................................................................................245 Moving Machine Backward.........................................................................................246 Stopping Machine................................................................................................247 STEERING THE MACHINE................................................................................................248 Steering........................................................................................................248 Steering the Machine when Stopped...........................................................................248 Changing Direction of the Machine...........................................................................249 Counter-rotation Turn (Spin Turn)...........................................................................249 SWINGING............................................................................................................250 WORK EQUIPMENT CONTROLS AND OPERATIONS..............................................................................251 WORKING MODE........................................................................................................253 Working Mode Switch.............................................................................................253 One-Touch Power Max. Switch.....................................................................................255 PROHIBITED OPERATIONS...............................................................................................256 GENERAL OPERATION INFORMATION.......................................................................................259 Traveling.......................................................................................................259 High Speed Travel...............................................................................................259 Permissible Water Depth.........................................................................................260 TRAVELING ON SLOPES.................................................................................................261 ESCAPE FROM MUD.....................................................................................................263 Track on One Side Stuck.........................................................................................263 Tracks on Both Sides Stuck......................................................................................263 RECOMMENDED APPLICATIONS............................................................................................264 Backhoe Work....................................................................................................264 Shovel Work.....................................................................................................264 Ditching Work...................................................................................................264 Loading Work....................................................................................................265 BUCKET REPLACEMENT AND INVERSION....................................................................................266 Replacement.....................................................................................................266 Inversion.......................................................................................................268 PARKING MACHINE.....................................................................................................270 MACHINE INSPECTION AFTER DAILY WORK.................................................................................272 LOCKING.............................................................................................................272 TRANSPORTATION......................................................................................................272 Transportation Procedure........................................................................................272 Loading And Unloading With Trailer..............................................................................273 Loading.....................................................................................................274 Securing Machine............................................................................................277 Stowing Radio Antenna.......................................................................................279 Rear view Mirrors...........................................................................................279 Remove and Install Handrail.................................................................................281 Unloading...................................................................................................282 LONG DISTANCE TRANSPORT MODE........................................................................................284 Normal Mode Display.............................................................................................284 Long Distance Transport Mode Display............................................................................284 LIFTING MACHINE.....................................................................................................286 Standard Specification Machines.................................................................................286 Machines with Lifting Hook..................................................................................288 COLD WEATHER OPERATION..............................................................................................289 Cold Weather Operation Information..............................................................................289 Fuel and Lubricants.........................................................................................289 Coolant.....................................................................................................289 Battery.....................................................................................................290 AFTER DAILY WORK COMPLETION.........................................................................................291 AFTER COLD WEATHER SEASON...........................................................................................291 LONG TERM STORAGE...................................................................................................292 Before Storage..................................................................................................292 During Storage..................................................................................................292 After Storage...................................................................................................293 Starting Machine After Long-term Storage........................................................................293 TROUBLES AND ACTIONS................................................................................................294 Running Out Of Fuel.............................................................................................294 Phenomena That Are Not Failures.................................................................................294 Towing The Machine..............................................................................................295 Lightweight Towing Hole.........................................................................................296 Severe Job Condition............................................................................................296 Discharged Battery..............................................................................................297 Battery Removal and Installation............................................................................297 Battery Charges.............................................................................................298 Starting Engine with Booster Cables.........................................................................299 OTHER TROUBLE.......................................................................................................301 Electrical System...............................................................................................301 Chassis.........................................................................................................302 Engine..........................................................................................................303 Electronic Control System.......................................................................................305 Point of Contact to Telephone when Error Occurs.............................................................305 MAINTENANCE INFORMATION.............................................................................................308 OUTLINE OF SERVICE..................................................................................................310 Handling Oil, Fuel, Coolant, And Performing Oil Clinic..........................................................310 Oil.........................................................................................................310 Fuel........................................................................................................311 Coolant And Water For Dilution..............................................................................311 Grease......................................................................................................312 Carrying Out KOWA (Komatsu Oil Wear Analysis)...............................................................312 Storing Oil And Fuel........................................................................................313 Filters.....................................................................................................313 Electric System Maintenance.....................................................................................313 WEAR PARTS..........................................................................................................314 Wear Parts List.................................................................................................314 RECOMMENDED FUEL, COOLANT, AND LUBRICANT............................................................................315 Lubrication Chart...............................................................................................315 Fuel, Coolant, and Lubricants to Match the Ambient Temperature..................................................317 KDPF (Komatsu Diesel Particulate Filter)........................................................................317 Recommended Brands, Recommended Quality For Products Other Than Komatsu Genuine Oil.............................318 TORQUE SPECIFICATIONS...............................................................................................319 Torque List.....................................................................................................319 Torque Of Bolts.............................................................................................319 Torque Of Hose Nuts.........................................................................................320 Torque Of Split Flange Bolts................................................................................320 Torque For Flared Nuts......................................................................................321 Torque For O-ring Boss Piping Joints........................................................................321 Torque For O-ring Boss Plugs................................................................................322 Torque For Hoses (Taper Seal Type And Face Seal Type).......................................................322 SAFETY CRITICAL PARTS...............................................................................................324 Safety Critical Parts List......................................................................................325 MAINTENANCE SCHEDULE................................................................................................326 Maintenance Schedule Table......................................................................................326 Maintenance Interval For Hydraulic Breaker......................................................................328 MAINTENANCE PROCEDURE...............................................................................................329 Initial 10 Hours Maintenance....................................................................................329 Initial 250 Hours Maintenance (Only After The First 250 Hours)..................................................329 Initial 500 Hours Maintenance (Only After The First 500 Hours)..................................................329 When Required...................................................................................................330 Check, Clean And Replace Air Cleaner Element................................................................330 Clean Inside Of Cooling System..............................................................................337 Check And Tighten Track Shoe Bolts..........................................................................342 Check And Adjust Track Tension..............................................................................343 Replace Bucket Teeth (Vertical Pin Type)....................................................................345 Replace Bucket Teeth (Horizontal Pin Type)..................................................................348 Replace Bucket Side Cutter, Shroud..........................................................................350 Adjust Bucket Clearance.....................................................................................351 Check Window Washer Fluid Level, Add Fluid..................................................................352 Check And Maintain Air Conditioner..........................................................................353 Wash Washable Floor.........................................................................................354 Set Machine at Angle........................................................................................356 Check Gas Spring............................................................................................357 Bleeding Air From Hydraulic System..........................................................................358 Check Before Starting...........................................................................................360 Every 100 Hours Maintenance.....................................................................................361 Lubricating.................................................................................................361 Every 250 Hours Maintenance.....................................................................................362 Check Level Of Battery Electrolyte..........................................................................362 Check Air Conditioner Compressor Belt Tension, Adjust.......................................................364 Every 500 Hours Maintenance.....................................................................................366 Lubricating.................................................................................................366 Change Oil In Engine Oil Pan................................................................................368 Replace Engine Oil Filter Cartridge.........................................................................368 Replace Fuel Pre-filter Cartridge...........................................................................370 Check Swing Pinion Grease Level, Add Grease.................................................................372 Clean And Inspect Radiator Fins, Oil Cooler Fins, Aftercooler Fins, Fuel Cooler Fins, And Condenser Fins....373 Clean Air Conditioner Fresh/Recirc Filters..................................................................375 Replace Breather Element In Hydraulic Tank..................................................................377 Check Oil Level In Swing Machinery Case, Add Oil............................................................378 Check Oil Level In Final Drive Case, Add Oil................................................................379 Every 1000 Hours Maintenance....................................................................................380 Replace Hydraulic Oil Filter Element........................................................................380 Change Oil In Swing Machinery Case..........................................................................381 Check Oil Level In Damper Case, Add Oil.....................................................................382 Replace Fuel Main Filter Cartridge..........................................................................383 Check All Tightening Points Of Engine Exhaust Pipe Clamps...................................................386 Check Fan Belt Tension And Replace Fan Belt.................................................................386 Check Nitrogen Gas Charge Pressure In Accumulator (For Breaker).............................................386 Every 2000 Hours Maintenance....................................................................................387 Change Oil In Final Drive Case..............................................................................387 Clean Hydraulic Tank Strainer...............................................................................388 Check Charge Pressure Of Nitrogen Gas In Accumulator (For Control Circuit)..................................389 Check Alternator............................................................................................392 Check Engine Valve Clearance, Adjust........................................................................392 Replace Komatsu Closed Crankcase Ventilation (KCCV) Filter Element..........................................393 Every 4000 Hours Maintenance....................................................................................396 Check Water Pump............................................................................................396 Check Vibration Damper......................................................................................396 Check Starting Motor........................................................................................396 Replace Accumulator (For Control Circuit)...................................................................397 Check For Looseness Of High-pressure Piping Clamp, Hardening Of Rubber......................................398 Check For Missing Fuel Spray Prevention Cap, Hardening Of Rubber............................................398 Check Operating Condition Of Compressor.....................................................................399 Every 4500 Hours Maintenance....................................................................................400 Clean Komatsu Diesel Particulate Filter (KDPF)..............................................................400 Replace Komatsu Closed Crankcase Ventilation (KCCV) Hose....................................................400 Every 5000 Hours Maintenance....................................................................................401 Change Oil In Hydraulic Tank................................................................................401 Every 8000 Hours Maintenance....................................................................................402 Replace Fuel Spray Prevention Cap...........................................................................402 Replace High-pressure Piping Clamp..........................................................................402 SPECIFICATIONS......................................................................................................404 GENERAL PRECAUTIONS FOR SAFETY......................................................................................408 Precautions When Selecting......................................................................................408 Read The Operation and Maintenance Manual Thoroughly............................................................408 Precautions When Removing Or Installing.........................................................................408 Precautions When Using..........................................................................................408 BUCKET WITH HOOK....................................................................................................409 Hook Condition..................................................................................................409 Prohibited Operations...........................................................................................409 CHANGING DIRECTION OF THE MACHINE...................................................................................410 Straight Travel (Option)........................................................................................411 CHANGING MACHINE CONTROL PATTERN....................................................................................412 Control Pattern Change Procedure................................................................................412 MACHINE READY FOR ATTACHMENT........................................................................................414 Locations.......................................................................................................414 Stop Valve..................................................................................................414 Selector Valve..............................................................................................415 Attachment Control Pedal....................................................................................415 Lock Pin....................................................................................................415 Breaker Circuit Additional Oil Filter.......................................................................416 Accumulator.................................................................................................417 HYDRAULIC CIRCUIT...................................................................................................418 Switching Hydraulic Circuit.....................................................................................418 Switching Between Breaker and General Attachment............................................................418 Hydraulic Circuit Connection....................................................................................419 Oil Flow Path...................................................................................................420 Replace Additional Breaker Filter Element.......................................................................421 Replace Additional Breaker Pilot Filter Element.................................................................424 ATTACHMENT REMOVAL AND INSTALLATION.................................................................................427 Attachment Removal..............................................................................................427 Attachment Installation.........................................................................................429 ATTACHMENT OPERATIONS...............................................................................................431 When Using Breaker..............................................................................................431 When Using General Attachment Such as Crusher...................................................................434 LONG TERM STORAGE...................................................................................................435 Specifications..................................................................................................435 Attachment Guide................................................................................................436 Attachment Combinations.........................................................................................436 TRACK SHOES SELECTION...............................................................................................438 BUCKET TEETH SELECTION..............................................................................................439 Selection Guide for Horizontal or Vertical Pin Type Tooth.......................................................439 HANDLING OF RUBBER PAD SHOE AND ROAD LINER..........................................................................440 Check Road Liner................................................................................................441 Handling Trapezoidal Bucket.....................................................................................442 Digging Work....................................................................................................442 HANDLING EXTENSION ARM..............................................................................................444 HANDLING CLAMSHELL BUCKET...........................................................................................445 RECOMMENDED ATTACHMENT OPERATIONS...................................................................................446 Hydraulic Breaker...............................................................................................446 Prohibited Usage................................................................................................448
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