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KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A40001 and up) KOMATSU PC490LC-10 – PDF DOWNLOAD
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- KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual
- Serial Number:A40001 and up
- Publication Number:CEAM025504
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KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A40001 and up) KOMATSU PC490LC-10
KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:A40001 AND UP) KOMATSU PC490LC-10 – PDF DOWNLOAD:
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KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A40001 and up) KOMATSU PC490LC-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 PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A40001 and up) KOMATSU PC490LC-10
CEAM025504 PC490LC-10 S/N A40001 and UP..................................................................................... 1 INTRODUCTION - SECTION 0................................................................................................ 3 FOREWORD............................................................................................................ 4 SAFETY INFORMATION.................................................................................................. 5 Safety labels................................................................................................... 6 INTRODUCTION........................................................................................................ 7 Directions of Machine........................................................................................... 7 Visibility from Operator’s Seat................................................................................. 8 Close Visibility............................................................................................ 8 Visibility for a Circumference of 12 m...................................................................... 8 Structure to Protect the Operator........................................................................... 8 Breaking-in the New Machine..................................................................................... 9 Product Information............................................................................................. 10 Product Identification Number (Pin)/Machine Serial No. Plate................................................ 10 EPA* Regulations, Engine Number Plate....................................................................... 10 Service Meter Location.......................................................................................... 11 Your Machine Serial Numbers and Distributor..................................................................... 11 Engine Acronyms................................................................................................. 11 TABLE OF CONTENTS................................................................................................... 12 SAFETY - SECTION 1...................................................................................................... 23 SAFETY LABELS....................................................................................................... 24 Location Of Safety Labels....................................................................................... 24 Safety Labels................................................................................................... 25 GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE............................................................. 35 Precautions Before Starting Operation........................................................................... 35 Ensuring Safe Operation..................................................................................... 35 Understanding the Machine................................................................................... 35 Preparations for Safe Operation................................................................................. 35 Precautions Regarding Safety-related Equipment.............................................................. 35 Inspecting Machine.......................................................................................... 35 Clothing and Personal Protective Items.......................................................................... 35 Keep Machine Clean.............................................................................................. 36 Keep Operator's Compartment Clean............................................................................... 36 Fire Extinguisher and First Aid Kit............................................................................. 36 Safety Equipment................................................................................................ 36 If Problems are Found........................................................................................... 36 Fire Prevention and Explosion Prevention........................................................................ 37 Action if Fire Occurs........................................................................................... 38 Handrails and Steps............................................................................................. 39 Mounting and Dismounting........................................................................................ 39 No Persons on Attachments....................................................................................... 39 Leaving Operator's Seat with Lock............................................................................... 40 Emergency Exit from Operator's Cab.............................................................................. 40 Do Not Get Caught in Work Equipment............................................................................. 41 Precautions Related to Protective Structures.................................................................... 41 Falling Objects, Flying Objects and Intruding Objects Prevention................................................ 41 Unauthorized Modification....................................................................................... 42 Precautions Related to Attachments and Options.................................................................. 42 Precautions Related to Cab Glass................................................................................ 42 Precautions When Running Engine inside Building................................................................. 42 Safety at Jobsite............................................................................................... 43 Working on Loose Ground......................................................................................... 43 Distance to High Voltage Cables................................................................................. 43 Ensure Good Visibility.......................................................................................... 44 Signalman's Signal and Signs.................................................................................... 44 Asbestos Dust Hazard Prevention................................................................................. 45 SAFETY MACHINE OPERATION............................................................................................ 46 Starting Engine................................................................................................. 46 Checks Before Starting Engine............................................................................... 46 Safety Rules for Starting Engine............................................................................ 47 Starting Engine in Cold Weather............................................................................. 47 Starting Engine with Booster Cables......................................................................... 47 Operation....................................................................................................... 48 Checks Before Operation..................................................................................... 48 Safety Rules for Changing Machine Directions................................................................ 48 Safety Rules for Traveling.................................................................................. 49 Traveling on Slopes......................................................................................... 50 Operations on Slopes........................................................................................ 51 Prohibited Operations....................................................................................... 52 Operations on Snow or Frozen Surfaces....................................................................... 54 Parking Machine............................................................................................. 54 TRANSPORTATION...................................................................................................... 55 Loading and Unloading........................................................................................... 55 Shipping the Machine............................................................................................ 55 TOWING.............................................................................................................. 56 Safety Rules for Towing......................................................................................... 56 LIFTING OBJECTS WITH BUCKET......................................................................................... 57 Safety Rules for Lifting Objects................................................................................ 57 SAFETY MAINTENANCE INFORMATION...................................................................................... 58 Warning Tag..................................................................................................... 58 Keep Work Place Clean and Tidy.................................................................................. 58 Select Suitable Place for Inspection and Maintenance............................................................ 58 Only Authorized Personnel....................................................................................... 58 Appoint Leader when Working with Others......................................................................... 58 Stop Engine Before Carrying Out Maintenance..................................................................... 59 Precautions When Working at High Places......................................................................... 59 Two Workers for Maintenance when Engine is Running.............................................................. 60 Attachments..................................................................................................... 60 Work on Machine................................................................................................. 61 Work Under the Machine.......................................................................................... 61 Proper Tools.................................................................................................... 61 Battery Disconnect Switch....................................................................................... 62 Removing Battery Terminals...................................................................................... 62 Welding......................................................................................................... 62 Battery......................................................................................................... 62 Battery Hazard Prevention................................................................................... 62 When Using Hammer............................................................................................... 63 Precautions with High-temperature Coolant....................................................................... 63 Precautions with High-temperature Oil........................................................................... 64 Safety Rules for High-pressure Oil.............................................................................. 64 Precaution for High Fuel Pressure........................................................................... 64 Safety Handling High-pressure Hoses or Piping............................................................... 64 Precaution for High Voltage..................................................................................... 65 Noise........................................................................................................... 65 Safety First when Using High-pressure Grease to Adjust Track Tension............................................ 65 Do Not Disassemble Recoil Springs............................................................................... 66 Accumulator..................................................................................................... 66 Handling Gas Spring............................................................................................. 66 Precautions when Using...................................................................................... 66 Precautions when Discarding................................................................................. 67 Compressed Air.................................................................................................. 67 Air Conditioner Maintenance..................................................................................... 67 Waste Materials................................................................................................. 67 Select Window Washer Fluid...................................................................................... 67 Personnel....................................................................................................... 67 Periodic Replacement Of Safety Critical Parts................................................................... 68 OPERATION - SECTION 2................................................................................................... 69 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 User Menu Selector Switch...................................................................................114 User Menu...................................................................................................115 Machine Settings............................................................................................126 Maintenance Screen Setting..................................................................................135 Monitor Setting.................................................................................................137 Screen Adjustment...........................................................................................137 Screen Adjustment (Camera)..................................................................................138 Clock Adjustment............................................................................................138 Time........................................................................................................140 SWITCHES............................................................................................................145 Starting Switch.................................................................................................146 Fuel Control Dial...............................................................................................146 Cigarette Lighter...............................................................................................146 Swing Lock Switch...............................................................................................146 Lamp Switch.....................................................................................................147 Horn Switch.....................................................................................................147 One Touch Power Max. Switch.....................................................................................147 Room Lamp Switch................................................................................................147 Emergency Pump Drive Switch.....................................................................................148 Swing Brake Cancel Switch.......................................................................................148 Ceiling Window Wiper Switch.....................................................................................149 Seat Heater Switch..............................................................................................149 Machine Push-up Switch..........................................................................................149 Engine Shutdown Secondary Switch................................................................................150 CONTROL LEVERS AND PEDALS...........................................................................................151 Lock Lever......................................................................................................151 Travel Levers...................................................................................................152 Work Equipment Control Lever....................................................................................153 CEILING WINDOW......................................................................................................154 cab WINDowS.........................................................................................................154 EMERGENCY ESCAPE HAMMER.............................................................................................160 DOOR LOCK...........................................................................................................161 CAB DOOR HINGE......................................................................................................161 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 Stowing Radio Antenna.......................................................................................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...................................................................................................187 BATTERY DISCONNECT SWITCH...........................................................................................188 SYSTEM OPERATING LAMP...............................................................................................189 HANDLING KOMATSU DIESEL PARTICULATE FILTER (KDPF)...................................................................190 Manual Stationary Regeneration, Operation Procedure.............................................................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 Re-enabling KDPF Regeneration...............................................................................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..................................................................................................212 Seat Belt Inspection............................................................................................221 Seat Belt.......................................................................................................222 Operations Before Starting Engine...............................................................................223 STARTING ENGINE.....................................................................................................226 Turbo Protect Function..........................................................................................229 AFTER STARTING ENGINE...............................................................................................230 Engine Warm Up..................................................................................................232 Canceling Automatic Warm-up Operation...........................................................................233 Hydraulic System Warm-Up........................................................................................234 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 (Pivot Turn)..............................................................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.......................................................................................260 Traveling.......................................................................................................260 High Speed Travel...............................................................................................260 Permissible Water Depth.........................................................................................261 TRAVELING ON SLOPES.................................................................................................262 ESCAPE FROM MUD.....................................................................................................264 Track on One Side Stuck.........................................................................................264 Tracks on Both Sides Stuck......................................................................................264 RECOMMENDED APPLICATIONS............................................................................................265 Backhoe Work....................................................................................................265 Shovel Work.....................................................................................................265 Ditching Work...................................................................................................265 Loading Work....................................................................................................266 BUCKET REPLACEMENT AND INVERSION....................................................................................267 Replacement.....................................................................................................267 Inversion.......................................................................................................269 PARKING MACHINE.....................................................................................................271 MACHINE INSPECTION AFTER DAILY WORK.................................................................................273 LOCKING.............................................................................................................273 TRANSPORTATION......................................................................................................273 Transportation Procedure........................................................................................273 Loading and Unloading with Trailer..............................................................................274 Loading.....................................................................................................275 Securing Machine............................................................................................278 Stowing Radio Antenna.......................................................................................280 Installation and Removal of Mirrors.........................................................................280 Remove and Install Handrail.................................................................................282 Unloading...................................................................................................283 LIFTING MACHINE.....................................................................................................285 Standard Specification Machines.................................................................................285 Machines with Lifting Hook..................................................................................287 Spread and Narrow Track Frame Gauge.............................................................................288 Narrowing Gauge.............................................................................................288 Spreading Gauge.............................................................................................289 COLD WEATHER OPERATION..............................................................................................290 Cold Weather Operation Information..............................................................................290 Fuel and Lubricants.........................................................................................290 Coolant.....................................................................................................290 Battery.....................................................................................................291 AFTER DAILY WORK COMPLETION.........................................................................................292 AFTER COLD WEATHER SEASON...........................................................................................292 LONG TERM STORAGE...................................................................................................293 Before Storage..................................................................................................293 During Storage..................................................................................................293 After Storage...................................................................................................294 Starting Machine After Long-term Storage........................................................................294 TROUBLES AND ACTIONS................................................................................................295 Running Out of Fuel.............................................................................................295 Bleeding Air from Fuel Circuit..................................................................................295 Phenomena that are Not Failures.................................................................................296 Towing the Machine..............................................................................................297 Lightweight Towing Hole.........................................................................................298 Severe Job Condition............................................................................................298 Discharged Battery..............................................................................................299 Battery Removal and Installation............................................................................299 Battery Charges.............................................................................................300 Starting Engine with Booster Cables.........................................................................301 OTHER TROUBLE.......................................................................................................303 Electrical System...............................................................................................303 Chassis.........................................................................................................304 Engine..........................................................................................................305 Electronic Control System.......................................................................................307 Point of Contact to Telephone When Error Occurs.............................................................307 MAINTENANCE - SECTION 3.................................................................................................309 MAINTENANCE INFORMATION.............................................................................................310 OUTLINE OF SERVICE..................................................................................................312 Handling Oil, Fuel, Coolant, and Performing Oil Clinic..........................................................312 Oil.........................................................................................................312 Fuel........................................................................................................313 Coolant and Water for Dilution..............................................................................313 Grease......................................................................................................314 Carrying Out KOWA (Komatsu Oil Wear Analysis)...............................................................314 Storing Oil and Fuel........................................................................................315 Filters.....................................................................................................315 Electric System Maintenance.....................................................................................315 WEAR PARTS..........................................................................................................316 Wear Parts List.................................................................................................316 RECOMMENDED FUEL, COOLANT, AND LUBRICANT............................................................................317 Lubrication Chart...............................................................................................317 Fuel, Coolant, and Lubricants to Match the Ambient Temperature..................................................319 Recommended Brands, Recommended Quality For Products Other Than Komatsu Genuine Oil.............................320 TORQUE SPECIFICATIONS...............................................................................................321 Torque List.....................................................................................................321 Torque of Bolts.............................................................................................321 Torque of Hose Nuts.........................................................................................322 Torque of Split Flange Bolts................................................................................322 Torque for Flared Nuts......................................................................................323 Torque for O-ring Boss Piping Joints........................................................................323 Torque for O-ring Boss Plugs................................................................................324 Torque for Hoses (Taper Seal Type and Face Seal Type).......................................................324 SAFETY CRITICAL PARTS...............................................................................................325 Safety Critical Parts List......................................................................................326 MAINTENANCE SCHEDULE................................................................................................327 Maintenance Schedule Table......................................................................................327 Maintenance Interval for Hydraulic Breaker......................................................................329 MAINTENANCE PROCEDURE...............................................................................................330 Initial 10 Hours Maintenance....................................................................................330 Initial 250 Hours Maintenance (Only After the First 250 Hours)..................................................330 Initial 500 Hours Maintenance (Only After the First 500 Hours)..................................................330 When Required...................................................................................................331 Check, Clean and Replace Air Cleaner Element................................................................331 Clean Inside of Cooling System..............................................................................337 Check and Tighten Track Shoe Bolts..........................................................................343 Check and Adjust Track Tension..............................................................................344 Replace Bucket Teeth (Vertical Pin Type)....................................................................346 Replace Bucket Teeth (Horizontal Pin Type)..................................................................349 Replace Bucket Side Cutter, Shroud..........................................................................351 Adjust Bucket Clearance.....................................................................................352 Check Window Washer Fluid Level, Add Fluid..................................................................353 Check and Maintain Air Conditioner..........................................................................354 Wash Washable Floor.........................................................................................355 Set Machine at Angle........................................................................................357 Check Gas Spring............................................................................................358 Bleeding Air from Hydraulic System..........................................................................359 Clean Line Filter, Remove Dirt..............................................................................361 Check Before Starting...........................................................................................362 Every 50 Hours Maintenance......................................................................................363 Lubricating.................................................................................................363 Every 250 Hours Maintenance.....................................................................................364 Check Level of Battery Electrolyte..........................................................................364 Check Air Conditioner Compressor Belt Tension, Adjust.......................................................366 Check and Tighten Connecting Bolt Between Center Frame and Track Frame......................................367 Lubricate Swing Circle......................................................................................367 Every 500 Hours Maintenance.....................................................................................368 Lubricating.................................................................................................368 Change Oil in Engine Oil Pan................................................................................370 Replace Engine Oil Filter Cartridge.........................................................................370 Replace Fuel Pre-filter Cartridge...........................................................................371 Check Swing Pinion Grease Level, Add Grease.................................................................373 Clean and Inspect Radiator Fins, Oil Cooler Fins, Aftercooler Fins, Fuel Cooler Fins, and Condenser Fins....374 Clean Air Conditioner Fresh/Recirc Filters..................................................................376 Replace Breather Element in Hydraulic Tank..................................................................378 Check Oil Level in Swing Machinery Case, Add Oil............................................................379 Check Oil Level in Final Drive Case, Add Oil................................................................380 Every 1000 Hours Maintenance....................................................................................381 Replace Hydraulic Oil Filter Element........................................................................381 Change Oil in Swing Machinery Case..........................................................................382 Check Oil Level in Damper Case, Add Oil.....................................................................383 Replace Fuel Main Filter Cartridge..........................................................................384 Check All Tightening Points of Engine Exhaust Pipe Clamps...................................................387 Check Alternator/Fan Belt Tension and Replace Belt..........................................................387 Check Nitrogen Gas Charge Pressure in Accumulator (for Breaker).............................................387 Replace Additional Breather Element in Hydraulic Tank.......................................................387 Every 2000 Hours Maintenance....................................................................................388 Change Oil in Final Drive Case..............................................................................388 Clean Hydraulic Tank Strainer...............................................................................389 Check Charge Pressure of Nitrogen Gas in Accumulator (for Control Circuit)..................................390 Check Alternator............................................................................................393 Check Engine Valve Clearance, Adjust........................................................................393 Replace Komatsu Closed Crankcase Ventilation (KCCV) Filter Element..........................................394 Every 4000 Hours Maintenance....................................................................................397 Check Water Pump............................................................................................397 Check Starting Motor........................................................................................397 Replace Accumulator (for Control Circuit)...................................................................398 Check for Looseness of High-pressure Piping Clamp, Hardening of Rubber......................................399 Check for Missing Fuel Spray Prevention Cap, Hardening of Rubber............................................399 Every 4500 Hours Maintenance....................................................................................400 Clean Komatsu Diesel Particulate Filter (KDPF)..............................................................400 Clean Fuel Doser............................................................................................400 Check for Missing Fuel Spray Prevention Cap of Fuel Doser Piping, Hardening of Rubber.......................400 Every 5000 Hours Maintenance....................................................................................401 Change Oil in Hydraulic Tank................................................................................401 Every 8000 Hours Maintenance....................................................................................403 Replace Fuel Spray Prevention Cap...........................................................................403 Replace High-pressure Piping Clamp..........................................................................403 EVERY 9000 HOURS MAINTENANCE....................................................................................403 Replacement of Fuel Spray Prevention Cap of Fuel Doser Piping...............................................403 SPECIFICATIONS - SECTION 4..............................................................................................405 SPECIFICATIONS......................................................................................................406 OPTIONS, ATTACHMENTS - SECTION 5........................................................................................409 GENERAL PRECAUTIONS FOR SAFETY......................................................................................410 Precautions When Selecting......................................................................................410 Read the Operation and Maintenance Manual Thoroughly............................................................410 Precautions When Removing or Installing.........................................................................410 Precautions When Using..........................................................................................410 BUCKET WITH HOOK....................................................................................................411 Hook Condition..................................................................................................411 Safety Rules for Lifting Operations.............................................................................411 CHANGING DIRECTION OF THE MACHINE...................................................................................412 Straight Travel (Option)........................................................................................413 CHANGING MACHINE CONTROL PATTERN....................................................................................414 Control Pattern Change Procedure................................................................................414 MACHINE READY FOR ATTACHMENT........................................................................................416 Locations.......................................................................................................416 Stop Valve..................................................................................................416 Selector Valve..............................................................................................417 Attachment Control Pedal....................................................................................417 Lock Pin....................................................................................................417 Breaker Circuit Additional Oil Filter.......................................................................418 Accumulator.................................................................................................419 HYDRAULIC CIRCUIT...................................................................................................420 Switching Hydraulic Circuit.....................................................................................420 Switching Between Breaker and General Attachment............................................................420 Hydraulic Circuit Connection....................................................................................421 Oil Flow Path...................................................................................................422 Replace Additional Breaker Filter Element.......................................................................423 Replace Additional Breaker Pilot Filter Element.................................................................425 ATTACHMENT REMOVAL AND INSTALLATION.................................................................................428 Attachment Removal..............................................................................................428 Attachment Installation.........................................................................................430 ATTACHMENT OPERATIONS...............................................................................................432 When Using Breaker..............................................................................................432 When Using General Attachment Such as Crusher...................................................................435 LONG TERM STORAGE...................................................................................................436 SPECIFICATIONS......................................................................................................436 Attachment Guide................................................................................................437 Attachment Combinations.........................................................................................437 TRACK SHOES SELECTION...............................................................................................439 Selection Method of Track Shoe..................................................................................439 HANDLING COUNTERWEIGHT REMOVER......................................................................................440 Explanation of Components.......................................................................................440 Counterweight...............................................................................................440 Remover Link................................................................................................440 Remover Link Cylinder.......................................................................................440 Counterweight Remover Control Lever.........................................................................441 Remover Control Selector Valve..............................................................................441 Operation of Counterweight Remover..............................................................................442 Lowering Counterweight......................................................................................443 Installing Counterweight........................................................................................446 Greasing........................................................................................................449 BUCKET TEETH SELECTION..............................................................................................450 Selection Guide for Horizontal or Vertical Pin Type Tooth.......................................................450 Handling Trapezoidal Bucket.....................................................................................451 Digging Work....................................................................................................451 HANDLING EXTENSION ARM..............................................................................................453 HANDLING CLAMSHELL BUCKET...........................................................................................454 RECOMMENDED ATTACHMENT OPERATIONS...................................................................................455 Hydraulic Breaker...............................................................................................455 Prohibited Usage................................................................................................457
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1 review for KOMATSU PC490LC-10 HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A40001 and up) KOMATSU PC490LC-10 – PDF DOWNLOAD
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Genesis Jones –
It was good.