KOMATSU PC290LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A25001 and up) KOMATSU PC290LC-10
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- KOMATSU PC290LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual
- Serial Number:A25001 and up
- Publication Number:CEAM025303
Description
KOMATSU PC290LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A25001 and up) KOMATSU PC290LC-10
KOMATSU PC290LC-10 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:A25001 AND UP) KOMATSU PC290LC-10:
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DESCRIPTION:
KOMATSU PC290LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A25001 and up) KOMATSU PC290LC-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 PC290LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A25001 and up) KOMATSU PC290LC-10
CEAM025303.pdf.................................................................................................................. 0 CEAM025303_PC290LC-10 S/N A25001 and UP..................................................................................... 1 INTRODUCTION............................................................................................................ 3 FORWARD............................................................................................................. 4 SAFETY INFORMATION.................................................................................................. 5 Safety labels................................................................................................... 6 INTRODUCTION........................................................................................................ 7 Directions of Machine........................................................................................... 7 Visibilty from Operator’s Seat.................................................................................. 7 Structure to Protect the Operator........................................................................... 7 Breaking-in The New Machine..................................................................................... 8 Product Information............................................................................................. 9 Product Identification Number (Pin)/Machine Serial No. Plate................................................ 9 EPA* Regulations, Engine Number Plate....................................................................... 9 Service Meter Location.......................................................................................... 10 Your Machine Serial Numbers And Distributor..................................................................... 10 Engine Acronyms................................................................................................. 10 TABLE OF CONTENTS................................................................................................... 11 SAFETY.................................................................................................................. 21 SAFETY LABELS....................................................................................................... 22 Location Of Safety Labels....................................................................................... 22 Safety Labels................................................................................................... 23 GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE............................................................. 32 Precautions Before Starting Operation........................................................................... 32 Ensuring Safe Operation..................................................................................... 32 Understanding The Machine................................................................................... 32 Preparations For Safe Operation................................................................................. 32 Precautions Regarding Safety-related Equipment.............................................................. 32 Inspecting Machine.......................................................................................... 32 Clothing And Personal Protective Items.......................................................................... 32 Keep Machine Clean.............................................................................................. 33 Keep Operator's Compartment Clean............................................................................... 33 Fire Extinguisher And First Aid Kit............................................................................. 33 Safety Equipment................................................................................................ 33 If Problems Are Found........................................................................................... 33 Fire Prevention And Explosion Prevention........................................................................ 34 Action If Fire Occurs........................................................................................... 35 Handrails and Steps............................................................................................. 36 Mounting And Dismounting........................................................................................ 36 No Persons On Attachments....................................................................................... 36 Leaving Operator's Seat With Lock............................................................................... 37 Emergency Exit From Operator's Cab.............................................................................. 37 Do Not Get Caught In Work Equipment............................................................................. 38 Precautions Related To Protective Structures.................................................................... 38 Falling Objects, Flying Objects And Intruding Objects Prevention................................................ 38 Unauthorized Modification....................................................................................... 39 Precautions Related To Attachments And Options.................................................................. 39 Precautions Related To Cab Glass................................................................................ 39 Precautions When Running Engine Inside Building................................................................. 39 Safety At Jobsite............................................................................................... 40 Working On Loose Ground......................................................................................... 40 Distance To High Voltage Cables................................................................................. 40 Ensure Good Visibility.......................................................................................... 41 Signalman's Signal And Signs.................................................................................... 41 Asbestos Dust Hazard Prevention................................................................................. 42 SAFETY MACHINE OPERATION............................................................................................ 43 Starting Engine................................................................................................. 43 Checks Before Starting Engine............................................................................... 43 Safety Rules For Starting Engine............................................................................ 44 Starting Engine In Cold Weather............................................................................. 44 Starting Engine With Booster Cables......................................................................... 44 Operation....................................................................................................... 45 Checks Before Operation..................................................................................... 45 Safety Rules For Changing Machine Directions................................................................ 45 Safety Rules For Traveling.................................................................................. 46 Traveling On Slopes......................................................................................... 47 Operations On Slopes........................................................................................ 48 Prohibited Operations....................................................................................... 49 Operations On Snow Or Frozen Surfaces....................................................................... 51 Parking Machine............................................................................................. 51 TRANSPORTATION...................................................................................................... 52 Loading and Unloading........................................................................................... 52 Shipping the Machine............................................................................................ 52 TOWING.............................................................................................................. 53 Safety Rules For Towing......................................................................................... 53 LIFTING OBJECTS WITH BUCKET......................................................................................... 54 Safety Rules For Lifting Objects................................................................................ 54 SAFETY MAINTENANCE INFORMATION...................................................................................... 55 Warning Tag..................................................................................................... 55 Keep Work Place Clean And Tidy.................................................................................. 55 Select Suitable Place For Inspection And Maintenance............................................................ 55 Only Authorized Personnel....................................................................................... 55 Appoint Leader When Working With Others......................................................................... 55 Stop Engine Before Carrying Out Maintenance..................................................................... 56 Precautions When Working At High Places......................................................................... 56 Two Workers For Maintenance When Engine Is Running.............................................................. 57 Attachments..................................................................................................... 57 Work On Machine................................................................................................. 58 Work Under The Machine.......................................................................................... 58 Proper Tools.................................................................................................... 58 Battery Disconnect Switch....................................................................................... 59 Removing Battery Terminals...................................................................................... 59 Welding......................................................................................................... 59 Battery......................................................................................................... 59 Battery Hazard Prevention................................................................................... 59 When Using Hammer............................................................................................... 60 Precautions With High-temperature Coolant....................................................................... 60 Precautions With High-temperature Oil........................................................................... 61 Safety Rules For High-pressure Oil.............................................................................. 61 Precaution For High Fuel Pressure........................................................................... 61 Safety Handling High-pressure Hoses or Piping............................................................... 61 Precaution For High Voltage..................................................................................... 62 Noise........................................................................................................... 62 Safety First When Using High-pressure Grease To Adjust Track Tension............................................ 62 Do Not Disassemble Recoil Springs............................................................................... 63 Accumulator..................................................................................................... 63 Handling Gas Spring............................................................................................. 63 Precautions when using...................................................................................... 63 Precautions when discarding................................................................................. 64 Compressed Air.................................................................................................. 64 Air Conditioner Maintenance..................................................................................... 64 Waste Materials................................................................................................. 64 Select Window Washer Fluid...................................................................................... 64 Personnel....................................................................................................... 64 Periodic Replacement Of Safety Critical Parts................................................................... 65 OPERATION............................................................................................................... 67 MACHINE VIEW ILLUSTRATIONS.......................................................................................... 68 Overall Machine View............................................................................................ 68 General View of Cab............................................................................................. 70 CONTROLS AND GAUGES................................................................................................. 71 Machine Monitor................................................................................................. 72 EXPLANATION OF COMPONENTS........................................................................................... 73 Machine Monitor................................................................................................. 73 Basic Operation of Machine Monitor.......................................................................... 74 Warning Display............................................................................................. 79 Meter Display............................................................................................... 89 Gauges and Meter............................................................................................ 96 Monitor Switches Portion.................................................................................... 99 Handling Function Switches..................................................................................109 User Menu Selector Switch...................................................................................113 User Menu...................................................................................................114 Machine Settings............................................................................................125 Maintenance Screen Setting..................................................................................130 Monitor Setting.................................................................................................132 Screen Adjustment...........................................................................................132 Screen Adjustment (Camera)..................................................................................133 Clock Adjustment............................................................................................133 Time........................................................................................................135 SWITCHES............................................................................................................140 Starting Switch.................................................................................................140 Fuel Control Dial...............................................................................................141 Cigarette Lighter...............................................................................................141 Swing Lock Switch...............................................................................................141 Lamp Switch.....................................................................................................142 Horn Switch.....................................................................................................142 One Touch Power Max. Switch.....................................................................................142 Room Lamp Switch................................................................................................142 Emergency Pump Drive Switch.....................................................................................143 Swing Brake Cancel Switch.......................................................................................143 Ceiling Window Wiper Switch.....................................................................................144 Seat Heater Switch..............................................................................................144 Engine Shutdown Secondary Switch................................................................................145 CONTROL LEVERS AND PEDALS...........................................................................................146 Lock Lever......................................................................................................146 Travel Levers...................................................................................................147 Work Equipment Control Lever....................................................................................148 SUN ROOF............................................................................................................150 WINDSHIELD..........................................................................................................150 EMERGENCY ESCAPE HAMMER.............................................................................................156 DOOR LOCK...........................................................................................................157 CAB DOOR HINGE......................................................................................................157 ENGINE HOOD.........................................................................................................158 When Opening (Normal Case: Intermediate Lock Position)..........................................................158 When Closing (Normal Case: Intermediate Lock Position)..........................................................160 CAPS AND COVERS WITH LOCK...........................................................................................162 Open and Close Caps with Lock...................................................................................162 Opening the Cap.............................................................................................162 Locking the Cap.............................................................................................162 Open and Close Covers with Lock.................................................................................163 Opening the Cover (Locked Cover)............................................................................163 Locking the Cover...........................................................................................163 Lock and Unlock Engine Hood.....................................................................................163 Opening the Hood (Locked Hood)..............................................................................163 Locking the Hood............................................................................................163 Lock and Unlock Cab Door........................................................................................164 Opening the Door (Locked Door)..............................................................................164 Locking the Door............................................................................................164 DRINK BOX...........................................................................................................165 MAGAZINE BOX........................................................................................................165 CUP HOLDER..........................................................................................................165 ASHTRAY.............................................................................................................166 AIR CONDITIONER CONTROLS............................................................................................167 Air Conditioner Control Panel...................................................................................167 Method of Operation.............................................................................................172 Automatic Operation.........................................................................................172 Stopping Automatic Operation................................................................................173 Manual Operation............................................................................................173 Stop Manual Operation.......................................................................................175 Operation with Cold Air to Face and Warm Air to Feet........................................................175 Defroster Operation.........................................................................................177 Rules for Using Air Conditioner.................................................................................179 Air Conditioner Maintenance.....................................................................................179 RADIO...............................................................................................................180 Control Panel...................................................................................................180 Operation Method................................................................................................182 Frequency Adjustment........................................................................................182 Frequency Adjustment (Auto Presetting)......................................................................182 Preset Call.................................................................................................182 Preset Memory...............................................................................................182 Sound Adjustment (Balance)..................................................................................182 Sound Adjustment (Treble)...................................................................................183 Sound Adjustment (Bass).....................................................................................183 Time Adjustment.............................................................................................183 AUXILIARY ELECTRIC POWER............................................................................................184 24 V Power Source...............................................................................................184 12 V Power Source...............................................................................................184 FUSE................................................................................................................185 FUSIBLE LINK........................................................................................................186 TOOL BOX............................................................................................................186 GREASE GUN HOLDER...................................................................................................186 FIRE EXTINGUISHER...................................................................................................186 BATTERY DISCONNECT SWITCH...........................................................................................187 SYSTEM OPERATING LAMP...............................................................................................188 HANDLING KOMATSU DIESEL PARTICULATE FILTER (KDPF)...................................................................189 Operation Procedure of Manual Stationary Regeneration...........................................................192 Komatsu Diesel Particulate Filter (KDPF) Regeneration Disable Procedure.....................................194 While Regeneration is not being Performed: Setting for Regeneration Disable.................................195 While Regeneration is being Performed: Stopping Regeneration................................................197 Komatsu Diesel Particulate Filter (KDPF) Regeneration Disable Cancel Procedure..............................198 Handling Komatsu Closed Crankcase Ventilation (KCCV)........................................................198 HANDLING MACHINES EQUIPPED WITH KOMTRAX.............................................................................199 Basic Precautions...............................................................................................200 MACHINE OPERATIONS AND CONTROLS.....................................................................................201 Before Starting Engine..........................................................................................201 Walk-around Checks..........................................................................................201 Checks Before Starting......................................................................................203 Adjustment..................................................................................................212 Seat Belt Inspection............................................................................................221 Seat Belt.......................................................................................................222 Operations Before Starting Engine...............................................................................223 STARTING ENGINE.....................................................................................................225 Turbo Protect Function..........................................................................................228 AFTER STARTING ENGINE...............................................................................................229 Engine Warm Up..................................................................................................231 Hydraulic System Warm-Up........................................................................................233 Operation After Completion Of Warming-Up Operation..............................................................240 STOPPING THE ENGINE.................................................................................................242 MACHINE OPERATION...................................................................................................243 Preparations for Moving the Machine.............................................................................243 Moving Machine Forward..........................................................................................244 Moving Machine Backward.........................................................................................245 Stopping Machine................................................................................................246 STEERING THE MACHINE................................................................................................247 Steering........................................................................................................247 Steering the Machine when Stopped...........................................................................247 Changing Direction of the Machine...........................................................................248 Counter-rotation Turn (Spin Turn)...........................................................................248 SWINGING............................................................................................................249 WORK EQUIPMENT CONTROLS AND OPERATIONS..............................................................................250 WORKING MODE........................................................................................................252 Working Mode Switch.............................................................................................252 One-Touch Power Max. Switch.....................................................................................254 PROHIBITED OPERATIONS...............................................................................................255 GENERAL OPERATION INFORMATION.......................................................................................258 Traveling.......................................................................................................258 High Speed Travel...............................................................................................258 Permissible Water Depth.........................................................................................259 TRAVELING ON SLOPES.................................................................................................260 ESCAPE FROM MUD.....................................................................................................262 Track on One Side Stuck.........................................................................................262 Tracks on Both Sides Stuck......................................................................................262 RECOMMENDED APPLICATIONS............................................................................................263 Backhoe Work....................................................................................................263 Shovel Work.....................................................................................................263 Ditching Work...................................................................................................263 Loading Work....................................................................................................264 BUCKET REPLACEMENT AND INVERSION....................................................................................265 Replacement.....................................................................................................265 Inversion.......................................................................................................267 PARKING MACHINE.....................................................................................................269 MACHINE INSPECTION AFTER DAILY WORK.................................................................................271 LOCKING.............................................................................................................271 TRANSPORTATION......................................................................................................271 Transportation Procedure........................................................................................271 Loading And Unloading With Trailer..............................................................................272 Loading.....................................................................................................273 Securing Machine............................................................................................276 Stowing Radio Antenna.......................................................................................278 Rearview Mirrors............................................................................................278 Remove and Install Handrail.................................................................................280 Unloading...................................................................................................281 LIFTING MACHINE.....................................................................................................283 Standard Specification Machines.................................................................................283 Machines with Lifting Hook..................................................................................285 COLD WEATHER OPERATION..............................................................................................286 Cold Weather Operation Information..............................................................................286 Fuel and Lubricants.........................................................................................286 Coolant.....................................................................................................286 Battery.....................................................................................................287 AFTER DAILY WORK COMPLETION.........................................................................................288 AFTER COLD WEATHER SEASON...........................................................................................288 LONG TERM STORAGE...................................................................................................289 Before Storage..................................................................................................289 During Storage..................................................................................................289 After Storage...................................................................................................290 Starting Machine After Long-term Storage........................................................................290 TROUBLES AND ACTIONS................................................................................................291 Running Out Of Fuel.............................................................................................291 Phenomena That Are Not Failures.................................................................................291 Towing The Machine..............................................................................................292 Lightweight Towing Hole.........................................................................................293 Severe Job Condition............................................................................................293 Discharged Battery..............................................................................................294 Battery Removal and Installation............................................................................294 Battery Charges.............................................................................................295 Starting Engine with Booster Cables.........................................................................296 OTHER TROUBLE.......................................................................................................298 Electrical System...............................................................................................298 Chassis.........................................................................................................299 Engine..........................................................................................................300 Electronic Control System.......................................................................................302 Point of Contact to Telephone when Error Occurs.............................................................302 MAINTENANCE.............................................................................................................303 MAINTENANCE INFORMATION.............................................................................................304 OUTLINE OF SERVICE..................................................................................................306 Handling Oil, Fuel, Coolant, And Performing Oil Clinic..........................................................306 Oil.........................................................................................................306 Fuel........................................................................................................307 Coolant And Water For Dilution..............................................................................307 Grease......................................................................................................308 Carrying Out KOWA (Komatsu Oil Wear Analysis)...............................................................308 Storing Oil And Fuel........................................................................................309 Filters.....................................................................................................309 Electric System Maintenance.....................................................................................309 WEAR PARTS..........................................................................................................310 Wear Parts List.................................................................................................310 RECOMMENDED FUEL, COOLANT, AND LUBRICANT............................................................................311 Lubrication Chart...............................................................................................311 Fuel, Coolant, and Lubricants to Match the Ambient Temperature..................................................313 KDPF (Komatsu Diesel Particulate Filter)........................................................................313 Recommended Brands, Recommended Quality For Products Other Than Komatsu Genuine Oil.............................314 TORQUE SPECIFICATIONS...............................................................................................315 Torque List.....................................................................................................315 Torque Of Bolts.............................................................................................315 Torque Of Hose Nuts.........................................................................................316 Torque Of Split Flange Bolts................................................................................316 Torque For Flared Nuts......................................................................................317 Torque For O-ring Boss Piping Joints........................................................................317 Torque For O-ring Boss Plugs................................................................................318 Torque For Hoses (Taper Seal Type And Face Seal Type).......................................................318 SAFETY CRITICAL PARTS...............................................................................................320 Safety Critical Parts List......................................................................................321 MAINTENANCE SCHEDULE................................................................................................322 Maintenance Schedule Table......................................................................................322 Maintenance Interval For Hydraulic Breaker......................................................................324 MAINTENANCE PROCEDURE...............................................................................................325 Initial 10 Hours Maintenance....................................................................................325 Initial 250 Hours Maintenance (Only After The First 250 Hours)..................................................325 Initial 500 Hours Maintenance (Only After The First 500 Hours)..................................................325 When Required...................................................................................................326 Check, Clean And Replace Air Cleaner Element................................................................326 Clean Inside Of Cooling System..............................................................................333 Check And Tighten Track Shoe Bolts..........................................................................338 Check And Adjust Track Tension..............................................................................339 Replace Bucket Teeth (Vertical Pin Type)....................................................................341 Replace Bucket Teeth (Horizontal Pin Type)..................................................................344 Replace Bucket Side Cutter, Shroud..........................................................................346 Adjust Bucket Clearance.....................................................................................347 Check Window Washer Fluid Level, Add Fluid..................................................................348 Check And Maintenance Air Conditioner.......................................................................349 Wash Washable Floor.........................................................................................350 Method of Setting Machine at Angle..........................................................................352 Check Gas Spring............................................................................................353 Bleeding Air From Hydraulic System..........................................................................354 Check Before Starting...........................................................................................356 Every 100 Hours Maintenance.....................................................................................357 Lubricating.................................................................................................357 Every 250 Hours Maintenance.....................................................................................358 Check Level Of Battery Electrolyte..........................................................................358 Check Air Conditioner Compressor Belt Tension, Adjust.......................................................360 Every 500 Hours Maintenance.....................................................................................362 Lubricating.................................................................................................362 Change Oil In Engine Oil Pan................................................................................364 Replace Engine Oil Filter Cartridge.........................................................................364 Replace Fuel Pre-filter Cartridge...........................................................................366 Check Swing Pinion Grease Level, Add Grease.................................................................368 Clean And Inspect Radiator Fins, Oil Cooler Fins, Aftercooler Fins, Fuel Cooler Fins, And Condenser Fins....369 Clean Air Conditioner Fresh/Recirc Filters..................................................................371 Replace Breather Element In Hydraulic Tank..................................................................373 Check Oil Level In Swing Machinery Case, Add Oil............................................................374 Check Oil Level In Final Drive Case, Add Oil................................................................375 Every 1000 Hours Maintenance....................................................................................376 Replace Hydraulic Oil Filter Element........................................................................376 Change Oil In Swing Machinery Case..........................................................................377 Check Oil Level In Damper Case, Add Oil.....................................................................378 Replace Fuel Main Filter Cartridge..........................................................................379 Check All Tightening Points Of Engine Exhaust Pipe Clamps...................................................382 Check Fan Belt Tension And Replace Fan Belt.................................................................382 Check Nitrogen Gas Charge Pressure In Accumulator (For Breaker).............................................382 Every 2000 Hours Maintenance....................................................................................383 Change Oil In Final Drive Case..............................................................................383 Clean Hydraulic Tank Strainer...............................................................................384 Checking Charge Pressure Of Nitrogen Gas In Accumulator (For Control Circuit)...............................385 Check Alternator............................................................................................388 Check Engine Valve Clearance, Adjust........................................................................388 Replace Komatsu Closed Crankcase Ventilation (KCCV) Filter Element..........................................389 Every 4000 Hours Maintenance....................................................................................392 Check Water Pump............................................................................................392 Check Vibration Damper......................................................................................392 Check Starting Motor........................................................................................392 Replace Accumulator (For Control Circuit)...................................................................393 Check For Looseness Of High-pressure Piping Clamp, Hardening Of Rubber......................................394 Check For Missing Fuel Spray Prevention Cap, Hardening Of Rubber............................................394 Check Operating Condition Of Compressor.....................................................................395 Every 4500 Hours Maintenance....................................................................................396 Clean Komatsu Diesel Particulate Filter (KDPF)..............................................................396 Replace Komatsu Closed Crankcase Ventilation (KCCV) Hose....................................................396 Every 5000 Hours Maintenance....................................................................................397 Change Oil In Hydraulic Tank................................................................................397 Every 8000 Hours Maintenance....................................................................................398 Replace Fuel Spray Prevention Cap...........................................................................398 Replace High-pressure Piping Clamp..........................................................................398 SPECIFICATIONS..........................................................................................................399 SPECIFICATIONS......................................................................................................400 OPTIONS, ATTACHMENTS....................................................................................................403 GENERAL PRECAUTIONS FOR SAFETY......................................................................................404 Precautions When Selecting......................................................................................404 Read The Operation and Maintenance Manual Thoroughly............................................................404 Precautions When Removing Or Installing.........................................................................404 Precautions When Using..........................................................................................404 BUCKET WITH HOOK....................................................................................................406 Hook Condition..................................................................................................406 Prohibited Operations...........................................................................................406 CHANGING DIRECTION OF THE MACHINE...................................................................................407 Straight Travel (Option)........................................................................................408 CHANGING MACHINE CONTROL PATTERN....................................................................................409 Control Pattern Change Procedure................................................................................409 MACHINE READY FOR ATTACHMENT........................................................................................411 Locations.......................................................................................................411 Stop Valve..................................................................................................411 Selector Valve..............................................................................................412 Attachment Control Pedal....................................................................................412 Lock Pin....................................................................................................412 Breaker Circuit Additional Oil Filter.......................................................................413 Accumulator.................................................................................................414 HYDRAULIC CIRCUIT...................................................................................................415 Switching Hydraulic Circuit.....................................................................................415 Switching Between Breaker and General Attachment............................................................415 Hydraulic Circuit Connection....................................................................................416 Oil Flow Path...................................................................................................417 Replace Additional Breaker Filter Element.......................................................................418 Replace Additional Breaker Pilot Filter Element.................................................................421 ATTACHMENT REMOVAL AND INSTALLATION.................................................................................424 Attachment Removal..............................................................................................424 Attachment Installation.........................................................................................426 ATTACHMENT OPERATIONS...............................................................................................428 When Using Breaker..............................................................................................428 When Using General Attachment Such as Crusher...................................................................431 LONG TERM STORAGE...................................................................................................432 Specifications..................................................................................................432 Attachment Guide................................................................................................433 Attachment Combinations.........................................................................................433 TRACK SHOES SELECTION...............................................................................................434 BUCKET TEETH SELECTION..............................................................................................435 Selection Guide for Horizontal or Vertical Pin Type Tooth.......................................................435 RECOMMENDED ATTACHMENT OPERATIONS...................................................................................436 Hydraulic Breaker...............................................................................................436 Prohibited Works................................................................................................438
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