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KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A86001 and UP) – PDF DOWNLOAD
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- KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR Operation & Maintenance Manual
- SERIAL NUMBER:A86001 and UP
- PUBLICATION NUMBER:CEAM008702
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Description
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A86001 and UP)
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:A86001 AND UP) – PDF DOWNLOAD:
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KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A86001 and UP)
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 while operating or performing 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.
TABLE OF CONTENTS:
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:A86001 and UP)
INTRODUCTION..................................................................... 3 FOREWORD..................................................................... 4 SAFETY INFORMATION........................................................... 5 Signal Words............................................................. 5 Other Signal Words....................................................... 5 INTRODUCTION................................................................. 6 DIRECTIONS OF MACHINE........................................................ 6 PRODUCT INFORMATION.......................................................... 7 Machine Serial Number Plate And Its Location............................. 7 Engine Serial Number Plate And Its Location.............................. 7 Service Meter Location................................................... 8 Your Machine Serial Numbers And Distributor.............................. 8 TABLE OF CONTENTS............................................................ 9 SAFETY........................................................................... 19 SAFETY LABELS................................................................ 20 Position For Attaching Safety Labels..................................... 20 Safety Labels............................................................ 21 SAFETY INFORMATION........................................................... 27 Safety Rules............................................................. 27 If Abnormalities Are Found............................................... 27 Working Wear And Personal Protective Items............................... 27 Fire Extinguisher And First Aid Kit...................................... 27 Safety Equipment......................................................... 27 Keep Machine Clean....................................................... 28 Keep Operator's Compartment Clean........................................ 28 Leaving Operator's Seat With Lock........................................ 28 Handrails And Steps...................................................... 29 Mounting And Dismounting................................................. 29 No Persons On Attachments................................................ 29 Burn Prevention.......................................................... 30 Hot Coolant.......................................................... 30 Hot Oil.............................................................. 30 Fire Prevention And Explosion Prevention................................. 30 Fire Caused By Fuel Or Oil........................................... 30 Fire Caused By Accumulation Of Flammable Material.................... 31 Fire Coming From Electric Wiring..................................... 31 Fire Coming From Hydraulic Line...................................... 31 Explosion Caused By Lighting Equipment............................... 31 Action If Fire Occurs................................................ 31 Windshield Washer Fluid.................................................. 31 Falling Objects, Flying Objects And Intruding Objects Prevention......... 31 Attachment Installation.................................................. 32 Attachment Combinations.................................................. 32 Cab Widow Glass.......................................................... 32 Unauthorized Modifications............................................... 32 Safety At Jobsite........................................................ 32 Working On Loose Ground.................................................. 33 Distance To High Voltage Cables.......................................... 33 Ensure Good Visibility................................................... 34 Ventilation For Enclosed Area............................................ 34 Signalman's Signal And Signs............................................. 34 Emergency Exit From Operator's Cab....................................... 34 Asbestos Dust Hazard Prevention.......................................... 34 SAFE MACHINE OPERATION....................................................... 35 Starting Engine.......................................................... 35 Checks Before Starting Engine............................................ 35 Safety Rules For Starting Engine......................................... 35 Starting Engine In Cold Weather.......................................... 35 OPERATION.................................................................... 36 Checks After Starting Engine, Before Operation........................... 36 Safety Rules For Changing Machine Directions............................. 36 Safety Rules For Traveling............................................... 37 Traveling On Slopes...................................................... 37 Operations On Slopes..................................................... 38 Prohibited Operations.................................................... 39 Operations On Snow....................................................... 40 Parking Machine.......................................................... 41 Transportation........................................................... 42 Loading And Unloading................................................ 42 Shipping The Machine..................................................... 43 Battery.................................................................. 44 Battery Hazard Prevention............................................ 44 Starting Engine With Booster Cables.................................. 45 Towing................................................................... 46 Safety Rules For Towing.............................................. 46 Lifting Objects With Bucket.............................................. 47 Lifting Work Using Bucket With Hook.................................. 47 Safety Rules For Lifting Objects..................................... 47 SAFETY MAINTENANCE INFORMATION............................................... 48 Warning Tag.............................................................. 48 Keep Work Place Clean And Tidy........................................... 48 Appoint Leader When Working With Others.................................. 48 Stop Engine Before Carrying Out Maintenance.............................. 49 Two Workers For Maintenance When Engine Is Running....................... 50 Proper Tools............................................................. 50 Accumulator.............................................................. 51 Personnel................................................................ 52 Attachments.............................................................. 52 Noise.................................................................... 52 When Using Hammer........................................................ 52 Welding.................................................................. 53 Removing Battery Terminals............................................... 53 Adjusting Track Tension.................................................. 53 Do Not Disassemble Recoil Springs........................................ 53 Safety Rules For High-pressure Oil....................................... 53 Safety Handling High-pressure Hoses...................................... 54 Waste Materials.......................................................... 54 Air Conditioner Maintenance.............................................. 54 Compressed Air........................................................... 54 Periodic Replacement Of Safety Critical Parts............................ 54 OPERATION........................................................................ 55 GENERAL VIEW................................................................. 56 General View Of Machine.................................................. 56 General View Controls And Gauges......................................... 57 EXPLANATION OF COMPONENTS.................................................... 58 Machine Monitor.......................................................... 58 Basic Operation Of Machine Monitor....................................... 59 If There Is Abnormality When Starting Engine......................... 59 If Any Abnormality Occurs During Operation........................... 60 Basic Check Items........................................................ 61 Radiator Coolant Level Monitor....................................... 61 Engine Oil Level Monitor............................................. 62 Maintenance Interval Monitor......................................... 62 Caution Items............................................................ 63 Charge Monitor....................................................... 63 Fuel Level Monitor................................................... 64 Air Cleaner Clogging Monitor......................................... 64 Engine Coolant Temperature Monitor................................... 64 Hydraulic Oil Temperature Monitor.................................... 64 Emergency Stop Items..................................................... 65 Engine Coolant Temperature Monitor................................... 65 Hydraulic Oil Temperature Monitor.................................... 66 Engine Oil Pressure Monitor.......................................... 66 Meter Display Portion.................................................... 67 Pilot Display........................................................ 67 Gauges and Meters.................................................... 69 Monitor Switches......................................................... 71 Working Mode Selector Switch (Basic Switch).......................... 72 Auto-deceleration Switch............................................. 73 Travel Speed Selector Switch......................................... 74 Wiper Switch......................................................... 75 Window Washer Switch................................................. 75 Maintenance Switch................................................... 76 Select Switch........................................................ 78 Back Switch.......................................................... 79 Up Switch, Down Switch............................................... 79 Input Confirmation Switch............................................ 79 Liquid Crystal Monitor Adjustment Switch............................. 80 Switches................................................................. 82 Starting Switch...................................................... 82 Fuel Control Dial.................................................... 83 Cigarette Lighter.................................................... 83 Swing Lock Switch.................................................... 83 Lamp Switch.......................................................... 84 Alarm Buzzer Stop Switch............................................. 84 Horn Switch.......................................................... 84 Knob Switch.......................................................... 84 Room Lamp Switch..................................................... 85 Emergency Pump Drive Switch.......................................... 85 Swing Brake Cancel Switch............................................ 85 Rotating Lamp Switch................................................. 85 Control Levers, Pedals................................................... 86 Safety Lock Lever.................................................... 86 Travel Levers........................................................ 87 Work Equipment Control Lever......................................... 88 Ceiling Window........................................................... 89 Front Window............................................................. 89 Emergency Exit From Operator's Cab....................................... 94 Door Lock................................................................ 95 Cap, Cover With Lock..................................................... 96 Method Of Opening And Closing Cap With Lock.......................... 96 Method Of Opening And Closing Cover With Lock........................ 96 Hot And Cool Box......................................................... 97 Magazine Box With Cup Holder............................................. 97 Ashtray.................................................................. 97 Air Conditioner.......................................................... 98 General Location Of Control Panel.................................... 98 Operation............................................................103 Precautions When Using Air Conditioner...............................109 Check, Maintain Machine Equipped With Air Conditioner................109 Other Functions......................................................110 Car Radio................................................................111 Explanation Of Components............................................111 Method Of Operation..................................................114 Power Pick-up Port...................................................116 Fuse.....................................................................116 Fuse Capacities And Circuit Names....................................117 Fusible Link.............................................................117 Controller...............................................................118 Toolbox..................................................................118 Grease Gun Holder........................................................118 Handling The Accumulator.................................................119 Releasing Pressure In Control Circuit................................120 MACHINE OPERATIONS AND CONTROLS..............................................121 Before Starting Engine...................................................121 Walk-Around Checks...................................................121 Checks Before Starting...............................................122 Adjustments Before Operation.........................................129 Seat Belt............................................................131 Before Starting Engine...............................................132 Starting Engine..........................................................135 Normal Starting......................................................135 Starting Engine In Cold Weather......................................137 After Starting Engine....................................................139 Breaking-in The New Machine..........................................139 Warm-up Operation....................................................140 In Cold Areas (Automatic Warm-up Operation)..............................144 Stopping The Engine......................................................149 Check After Shutting Off Engine..........................................149 Machine Operation........................................................150 Preparations For Moving The Machine..................................150 Moving Machine Forward...............................................151 Moving Machine Backward..............................................152 Stopping Machine.....................................................153 Steering The Machine.....................................................154 Steering The Machine When Stopped....................................154 Changing Direction Of The Machine....................................155 Counter-rotation Turn (Spin Turn)....................................155 Swinging.................................................................156 Work Equipment Controls And Operations...................................157 Operating Working Mode...................................................158 Working Mode.........................................................158 One-touch Power Max. Switch..........................................158 Prohibited Operations....................................................159 Swing Force..........................................................159 Travel Force.........................................................159 Hydraulic Cylinder Stroke Ends.......................................159 Bucket Dropping Force................................................160 Machine Dropping Force...............................................160 Digging Hard Rocky Ground............................................160 Sudden Lever Shifting High Speed Travel..............................160 General Operation Information............................................161 Traveling............................................................161 High Speed Travel....................................................161 Permissible Water Depth..............................................161 Traveling On Slopes......................................................162 Traveling Downhill...................................................163 Engine Stopped On Slope..............................................163 Precautions On Slopes................................................163 Escape From Mud..........................................................164 Stuck One Side Of Track..............................................164 Stuck Both Sides Of Tracks...........................................164 Recommended Applications.................................................165 Backhoe Work.........................................................165 Shovel Work..........................................................165 Ditching Work........................................................165 Loading Work.........................................................166 Replacement And Inversion Of Bucket......................................167 Replacement..........................................................167 Inversion............................................................169 Parking Machine..........................................................171 Check After Shut Off Engine..............................................172 Machine Inspection After Daily Work......................................172 Locking..................................................................173 TRANSPORTATION...............................................................173 Transportation Procedure.................................................173 Loading And Unloading With Trailer.......................................174 Loading..............................................................175 Securing Machine.....................................................177 Unloading............................................................179 Lifting Machine..........................................................181 COLD WEATHER OPERATION.......................................................183 Fuel And Lubricants......................................................183 Cooling System Coolant...................................................183 Battery..................................................................184 Monitor..................................................................185 After Operations.........................................................186 After Cold Weather Season................................................186 LONG TERM STORAGE............................................................187 Before Storage...........................................................187 During Storage...........................................................187 After Storage............................................................187 Starting Machine.....................................................187 TROUBLESHOOTING..............................................................188 After Running Out Of Fuel................................................188 Phenomena That Are Not Failures..........................................188 Towing The Machine.......................................................189 Lightweight Towing Hook..................................................190 Precautions On Particular Jobsites.......................................190 Discharged Battery.......................................................191 Removal And Installation Of Battery..................................192 Battery Charges......................................................192 Starting Engine With Booster Cables..................................193 Other Trouble............................................................195 Electrical System....................................................195 Chassis..............................................................196 Engine...............................................................196 Electronic Control System............................................198 MAINTENANCE......................................................................201 MAINTENANCE INFORMATION......................................................202 Service Meter Reading....................................................202 Komatsu Genuine Replacement Parts........................................202 Komatsu Genuine Lubricants...............................................202 Windshield Washer Fluid..................................................202 Fresh And Clean Lubricants...............................................202 Check Drained Oil And Used Filter........................................202 Fuel Strainer............................................................202 Welding Instructions.....................................................202 Do Not Drop Things Inside Machine........................................202 Dusty Jobsite............................................................203 Avoid Mixing Lubricants..................................................203 Locking The Inspection Covers............................................203 Hydraulic System - Air Bleeding..........................................203 Hydraulic Hose Installation..............................................203 Checks After Inspection And Maintenance Works............................203 Selecting Fuel And Lubricants To Match Ambient Temperature...............204 LUBRICANTS, COOLANT AND FILTERS..............................................204 Handling Oil, Fuel, Coolant, And Performing Oil Clinic...................204 Oil..................................................................204 Fuel.................................................................204 Cooling System Coolant...............................................205 Grease...............................................................205 Carrying Out Kowa (Komatsu Oil Wear Analysis)........................205 Oil And Fuel Storage.................................................206 Filters..............................................................206 Lubrication Chart Decal Explanation......................................207 Electric System Maintenance..............................................209 Handling Hydraulic System................................................209 WEAR PARTS LIST..............................................................210 FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE................211 Proper Selection Of Fuel, Coolant And Lubricants.........................211 TIGHTENING TORQUE SPECIFICATIONS.............................................213 PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS................................214 Safety Critical Parts....................................................214 MAINTENANCE SCHEDULE.........................................................215 Maintenance Schedule Chart...............................................215 Maintenance Interval For Hydraulic Breaker...............................217 Replacing Hydraulic Element..........................................217 Changing Oil In Hydraulic Tank.......................................217 Replacing Additional Filter Element For Breaker......................217 MAINTENANCE PROCEDURE........................................................218 Initial 250 Hours Maintenance............................................218 Initial 1000 Hours Maintenance (Only After The First 1000 Hours).........218 When Required............................................................219 Check, Clean And Replace Air Cleaner Element.........................219 Clean Inside Of Cooling System.......................................223 Check And Tighten Track Shoe Bolts...................................226 Check And Adjust Track Tension.......................................227 Check Electrical Intake Air Heater...................................228 Replace Bucket Teeth (Vertical Pin Type).............................229 Replace Bucket Teeth (Horizontal Pin Type)...........................232 Adjust Bucket Clearance..............................................233 Check Window Washer Fluid Level, Add Fluid...........................234 Check And Adjust Air Conditioner.....................................235 Cleaning Cab Floor...................................................236 Bleeding Air From Hydraulic System...................................239 Releasing Internal Pressure In Hydraulic Circuit.....................241 Check Nitrogen Gas Charge Pressure In Accumulator (Control Circuit)......242 Check Before Starting....................................................243 Every 100 Hours Maintenance..............................................244 Lubricating..........................................................244 Every 250 Hours Maintenance..............................................245 Check Oil Level In Machinery Case, Add Oil...........................245 Check Oil Level In Final Drive Case, Add Oil.........................245 Check Level Of Battery Electrolyte...................................246 Check, Adjust Tension Of Air Conditioner Compressor Belt.............248 Every 500 Hours Maintenance..............................................249 Lubricating..........................................................249 Lubricate Swing Circle (2 Points)....................................251 Change Oil In Engine Oil Pan, Replace Engine Oil Filter Cartridge....252 Replace Fuel Filter Cartridge........................................253 Check Swing Pinion Grease Level, Add Grease..........................254 Clean & Inspect Radiator Fins, Oil Cooler Fins & Condenser Fins......255 Clean Internal & External Air Filters Of Air Conditioner System......256 Replace Breather Element In Hydraulic Tank...........................257 Every 1000 Hours Maintenance.............................................258 Replace Hydraulic Filter Element.....................................258 Change Oil In Swing Machinery Case...................................260 Check Oil Level In Damper Case, Add Oil..............................261 Check All Tightening Parts Of Turbocharger...........................261 Check Play Of Turbocharger Rotor.....................................261 Replace Corrosion Resistor Cartridge.................................262 Check Fan Belt Tension And Replace Fan Belt..........................262 Check Nitrogen Gas Charge Pressure In Accumulator (For Breaker)......262 Every 2000 Hours Maintenance.............................................263 Change Oil In Final Drive Case.......................................263 Clean Hydraulic Tank Strainer........................................264 Clean, Check Turbocharger............................................264 Check Alternator, Starting Motor.....................................264 Check Engine Valve Clearance, Adjust.................................264 Check Vibration Damper...............................................264 Every 4000 Hours Maintenance.............................................265 Check Water Pump.....................................................265 Every 5000 Hours Maintenance.............................................266 Change Oil In Hydraulic Tank.........................................266 SPECIFICATIONS...................................................................267 SPECIFICATIONS...............................................................268 OPTIONS, ATTACHMENTS.............................................................271 GENERAL PRECAUTIONS..........................................................272 Precautions Related To Safety............................................272 Precautions When Selecting...............................................272 Read The Instruction Manual Thoroughly...................................272 Precautions When Removing Or Installing..................................272 Precautions When Using...................................................272 Precautions When Installing Attachments..................................274 HANDLING BUCKET WITH HOOK....................................................275 Checking For Damage To Bucket With Hook..................................275 Prohibited Operations....................................................275 Precautions During Operations........................................275 MACHINES READY FOR ATTACHMENTS...............................................276 Explanation Of Components................................................276 Stop Valve...........................................................276 Selector Valve.......................................................277 Attachment Control Pedal.............................................277 Lock Pin.............................................................277 Additional Filter For Breaker........................................278 Accumulator..........................................................278 Hydraulic Circuit........................................................279 Switching The Hydraulic Circuit......................................279 Adjusting Oil Flow...................................................279 Switching Between Breaker And General Attachment.....................279 Hydraulic Circuit Connection.........................................280 Oil Flow.............................................................281 Replace Additional Breaker Filter Element............................282 Attachment Installation And Removal Procedure............................283 Removal Procedure....................................................283 Installation Procedure...............................................284 Operation................................................................285 When Using Breaker...................................................285 When Using Crusher Or Other General Attachment.......................286 Long-term Storage........................................................287 Specifications...........................................................287 ATTACHMENT GUIDE.............................................................288 Selection Of Track Shoes.................................................288 Method Of Selecting Shoes............................................288 Selection Of Bucket Teeth................................................289 Selecting Teeth......................................................289 Standards For Selecting Vertical And Horizontal Pin Type Teeth...........290 Handling Trapezoidal Bucket..............................................291 How To Excavate......................................................291 Ditch Gradient Of 45 ................................................291 Ditch Gradient Of 40 And 38 ........................................292 Handling Extension Arm...................................................292 Handling Clamshell Bucket................................................293 How To Perform Excavation............................................293 Precautions When Using...............................................293 Lubricating..........................................................293 RECOMMENDED ATTACHMENT OPERATIONS............................................294 Hydraulic Breaker........................................................294 Main Applications....................................................294 Prohibited Operations................................................296 Greasing Position For Hydraulic Breaker..............................298
PLEASE NOTE:
⦁ This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
⦁ Require some other service manual or have any queries: please WRITE to us at [email protected]
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Emiliano Zain –
Manual downloaded perfect on my phone east to read lots of info