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Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual SN 32030 and up – PDF DOWNLOAD
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Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual
SERIAL NUMBER:
PC750SE-6K – K32030 and up
PC750LC-6K – K32030 and up
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Description
Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual
FILE DETAILS:
Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual
Model Specification: KOMATSU PC750SE-6K, PC750LC-6K HYDRAULIC EXCAVATOR
Language: English
File Format: PDF
Total Pages: 288
Requirements: Adobe PDF Reader
ZOOM IN/OUT: YES
Downloadable: YES
KOMATSU PC750SE-6K PC750LC-6K HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL SN 32030 AND UP – PDF DOWNLOAD:
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual
FOREWORD:
- This manual provides rules and guidelines which will help you use this machine safely and effectively. Keep this manual handy and have all personnel read it periodically. If this manual has been lost or has become dirty and can not be read, request a replacement manual from Komatsu or your Komatsu distributor.
- If you sell the machine, be sure to give this manual to the new owners. Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in this manual.
- Consult Komatsu or your Komatsu distributor for the latest available information for your machine or for questions regarding information in this manual.
TABLE OF CONTENTS:
Komatsu PC750SE-6K PC750LC-6K Hydraulic Excavator Operation & Maintenance Manual
FOREWORD............................................................................................................ 3 FOREWORD........................................................................................................ 4 SAFETY INFORMATION.............................................................................................. 6 NOISE....................................................................................................... 7 VIBRATION................................................................................................... 7 INTRODUCTION.................................................................................................... 8 INTENDED USE................................................................................................ 8 FEATURES.................................................................................................... 8 RUNNING IN THE MACHINE...................................................................................... 8 LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR................................................... 10 MACHINE SERIAL NO. PLATE POSITION........................................................................... 10 ENGINE SERIAL NO. PLATE POSITION............................................................................ 10 SERVICE METER POSITION...................................................................................... 11 TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR................................................................... 11 MACHINE SERIAL PLATE........................................................................................ 12 SAFETY.............................................................................................................. 19 GENERAL PRECAUTIONS............................................................................................. 20 PRECAUTIONS DURING OPERATION.................................................................................... 28 BEFORE STARTING THE ENGINE.................................................................................. 28 AFTER STARTING ENGINE....................................................................................... 30 TRANSPORTATION.............................................................................................. 37 BATTERY..................................................................................................... 38 TOWING...................................................................................................... 40 LIFTING OPERATIONS.......................................................................................... 41 PRECAUTIONS FOR MAINTENANCE..................................................................................... 42 BEFORE CARRYING OUT MAINTENANCE............................................................................. 42 DURING MAINTENANCE.......................................................................................... 46 POSITION FOR ATTACHING SAFETY LABELS............................................................................ 54 OPERATION........................................................................................................... 61 GENERAL VIEW.................................................................................................... 62 GENERAL VIEW OF MACHINE..................................................................................... 62 EXPLANATION OF COMPONENTS....................................................................................... 63 MACHINE MONITOR............................................................................................. 64 BASIC CHECK ITEMS (A)................................................................................... 66 CAUTION ITEMS (B)....................................................................................... 68 EMERGENCY STOP ITEMS (C)................................................................................ 69 METER DISPLAY PORTION (D)............................................................................... 70 SWITCHES (E)............................................................................................ 74 SWITCHES.................................................................................................... 76 CONTROL LEVERS, PEDALS...................................................................................... 83 CEILING WINDOW.............................................................................................. 85 FRONT WINDOW................................................................................................ 86 DOOR LOCK................................................................................................... 90 LOCKABLE COMPARTMENTS AND FUEL CAP.......................................................................... 90 OPENING AND CLOSING CAP WITH LOCK (for the fuel tank filler port)....................................... 91 OPENING AND CLOSING LOCKABLE COMPARTMENTS................................................................... 91 LUGGAGE BOX................................................................................................. 91 ASHTRAY..................................................................................................... 92 HANDLING AIR CONDITIONER.................................................................................... 92 GENERAL LOCATIONS ON CONTROL PANEL...................................................................... 92 PRECAUTIONS WHEN USING AIR CONDITIONER.................................................................. 94 RADIO-CASSETTE (OPTION)..................................................................................... 95 PRECAUTION DURING USE................................................................................... 95 FUSE........................................................................................................ 95 Fuse Capacities and Circuit Names....................................................................... 96 FUSIBLE LINK................................................................................................ 96 CIRCUIT BREAKER............................................................................................. 97 CONTROLLERS................................................................................................. 98 TOOLKIT HOLDER (CLOTH BAG).................................................................................. 98 GREASE PUMP................................................................................................. 98 Method of Use........................................................................................... 99 Precautions when Using..................................................................................100 Supplying Grease........................................................................................100 ACCUMULATOR HANDLING........................................................................................102 RELEASING PRESSURE IN THE CONTROL CIRCUIT ON MACHINES EQUIPPED WITH AN ACCUMULATOR......................102 OPERATION.......................................................................................................104 CHECKS BEFORE STARTING ENGINE...............................................................................104 WALK-AROUND CHECK.......................................................................................104 CHECK BEFORE STARTING...................................................................................105 ADJUST OPERATOR’S SEAT..................................................................................112 Rearview Mirrors........................................................................................114 Seat Belt...............................................................................................114 OPERATIONS AND CHECKS BEFORE STARTING ENGINE............................................................116 STARTING ENGINE.............................................................................................117 NORMAL STARTING.........................................................................................117 STARTING IN COLD WEATHER................................................................................118 OPERATIONS AND CHECKS AFTER STARTING ENGINE.................................................................120 WHEN NORMAL.............................................................................................120 IN COLD AREAS (AUTOMATIC WARMING-UP OPERATION)..........................................................122 TRAVELLING..................................................................................................125 TRAVELLING FORWARD......................................................................................125 TRAVELLING BACKWARD.....................................................................................127 CHANGING DIRECTION..........................................................................................128 STOPPING MACHINE............................................................................................131 SWINGING....................................................................................................132 OPERATION OF WORK EQUIPMENT.................................................................................133 WORKING MODE OPERATION......................................................................................134 PROHIBITIONS FOR OPERATION..................................................................................135 PRECAUTIONS FOR OPERATION...................................................................................137 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS.................................................................138 HOW TO ESCAPE FROM MUD......................................................................................139 WHEN ONE SIDE IS STUCK..................................................................................140 WHEN BOTH SIDES ARE STUCK...............................................................................140 WORK POSSIBLE USING HYDRAULIC EXCAVATORS....................................................................140 BACKHOE WORK............................................................................................140 DITCHING WORK...........................................................................................141 LOADING WORK............................................................................................141 REPLACEMENT OF BUCKET.......................................................................................141 REPLACEMENT.............................................................................................141 PARKING MACHINE.............................................................................................143 CHECK AFTER FINISHING WORK..................................................................................144 STOPPING ENGINE.............................................................................................144 CHECK AFTER STOPPING ENGINE.................................................................................145 LOCKING.....................................................................................................146 TRANSPORTATION..................................................................................................147 LOADING, UNLOADING WORK.....................................................................................147 PRECAUTIONS FOR LOADING.....................................................................................149 PRECAUTIONS FOR TRANSPORTATION..............................................................................149 TRANSPORTATION POSTURE......................................................................................150 PROCEDURE FOR INCREASING OR REDUCING TRACK FRAME GAUGE......................................................155 COLD WEATHER OPERATION..........................................................................................157 PRECAUTIONS FOR LOW TEMPERATURE.............................................................................157 FUEL AND LUBRICANTS.....................................................................................157 COOLANT.................................................................................................157 BATTERY.................................................................................................158 PRECAUTIONS AFTER COMPLETION OF WORK........................................................................158 AFTER COLD WEATHER..........................................................................................159 LONG-TERM STORAGE...............................................................................................160 BEFORE STORAGE..............................................................................................160 DURING STORAGE..............................................................................................160 AFTER STORAGE...............................................................................................161 STARTING MACHINE AFTER LONG-TERM STORAGE....................................................................161 TROUBLESHOOTING.................................................................................................162 WHEN MACHINE RUNS OUT OF FUEL...............................................................................162 PHENOMENA THAT ARE NOT FAILURES.............................................................................162 METHOD OF TOWING MACHINE....................................................................................162 PRECAUTIONS ON PARTICULAR JOBSITES..........................................................................163 IF BATTERY IS DISCHARGED....................................................................................163 REMOVAL AND INSTALLATION OF BATTERY.....................................................................163 STARTING ENGINE WITH BOOSTER CABLE......................................................................164 OTHER TROUBLE...............................................................................................166 ELECTRICAL SYSTEM.......................................................................................166 CHASSIS.................................................................................................167 Engine..................................................................................................168 Electronic Control System...............................................................................170 MAINTENANCE.........................................................................................................171 GUIDES TO MAINTENANCE...........................................................................................172 OUTLINES OF SERVICE.............................................................................................175 OUTLINE OF OIL, FUEL, COOLANT...............................................................................175 OIL.....................................................................................................175 USE OF BIO-DEGRADEABLE OIL..............................................................................176 FUEL....................................................................................................176 COOLANT.................................................................................................177 GREASE..................................................................................................177 STORING OIL AND FUEL....................................................................................178 FILTERS.................................................................................................178 OUTLINE OF ELECTRICAL SYSTEM................................................................................178 OUTLINE OF HYDRAULIC SYSTEM.................................................................................179 RELEASING PRESSURE..........................................................................................180 RELEASING PRESSURE FROM WORK EQUIPMENT CIRCUIT, SWING CIRCUIT, TRAVEL CIRCUIT...........................180 BLEEDING AIR FROM CIRCUIT...................................................................................180 Procedure for bleeding air..............................................................................181 WEAR PARTS......................................................................................................183 WEAR PARTS LIST.............................................................................................183 USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE............................................185 PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS............................................................185 STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS..................................................................189 LIST OF NECESSARY TOOLS.....................................................................................189 TIGHTENING TORQUE LIST......................................................................................190 SAFETY CRITICAL PARTS...........................................................................................191 SAFETY CRITICAL PARTS LIST..................................................................................192 MAINTENANCE SCHEDULE............................................................................................193 MAINTENANCE SCHEDULE CHART..................................................................................193 SERVICE PROCEDURE...............................................................................................195 INITIAL 100 HOURS SERVICE...................................................................................195 INITIAL 250 HOURS SERVICE...................................................................................195 WHEN REQUIRED...............................................................................................195 Air Cleaner Element - Check/Clean/Replace...............................................................195 Checking................................................................................................196 Air Cleaner Element - Install...........................................................................198 Air Cleaner Inner Element - Replace.....................................................................199 Cooling System Coolant - Clean/Change...................................................................201 CHECK AND TIGHTEN TRACK SHOE BOLTS......................................................................204 CHECK AND ADJUST TRACK TENSION..........................................................................205 CHECK ELECTRICAL INTAKE AIR HEATER......................................................................207 REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)..............................................................207 ADJUST BUCKET CLEARANCE.................................................................................208 Replacement of Fan Belt and Adjustment of Auto Tensioner................................................210 CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID..............................................................211 AIR CONDITIONER CHECK AND MAINTENANCE...................................................................212 Clean Line Filter, Remove Dirt..........................................................................213 CHECK BEFORE STARTING.......................................................................................214 CHECK COOLANT LEVEL.....................................................................................214 CHECK OIL LEVEL IN ENGINE OIL PAN.......................................................................214 CHECK FUEL LEVEL........................................................................................214 CHECK OIL LEVEL IN HYDRAULIC TANK.......................................................................214 CHECK FOR CLOGGING OF AIR CLEANER.......................................................................214 CHECK ELECTRICAL WIRING.................................................................................214 CHECK FUNCTION OF HORN..................................................................................214 CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL........................................................215 CHECK OIL LEVEL IN P.T.O. CASE, ADD OIL.................................................................215 EVERY 10 HOURS SERVICE......................................................................................216 LUBRICATING.............................................................................................216 DRAIN FUEL - WATER SEPARATOR............................................................................218 EVERY 100 HOURS MAINTENANCE.................................................................................219 Swing Circle - Lubricate (4 points).....................................................................219 Fuel Tank - Drain.......................................................................................219 EVERY 250 HOURS MAINTENANCE.................................................................................219 Final Drive Case Oil Level - Check/Add..................................................................219 Battery Electrolyte Level - Check.......................................................................220 Fuel tank Strainer - Check/Clean........................................................................221 Track Frame and Axle Connecting Bolts - Check/ Tighten..................................................222 Alternator Belt Tension - Inspect/Adjust................................................................222 Air Conditioner Compressor Belt Tension - Inspect/Adjust................................................224 EVERY 500 HOURS MAINTENANCE.................................................................................225 Fuel Filter Cartridge - Replace.........................................................................225 Swing Pinion Gear Oil Level - Check/Add.................................................................227 Hydraulic Tank Strainer - Clean.........................................................................228 Hydraulic Oil Filter Element - Replace..................................................................229 Radiator Fins, Oil Cooler Fins, After Cooler Fins, Fuel Filter Fins and Condenser Fins (Only for .......230 Air Conditioner FRESH/RECIRC Air Filters (Only for Machines Equipped with Air Conditioner) - Clean......231 Pilot Filter Element - Replace..........................................................................232 P.T.O Case Oil Strainer - Clean.........................................................................233 Fan Belt - Inspect......................................................................................233 Drain Filter Cartridge - Replace........................................................................234 Change Oil In Engine Oil Pan, Replace Engine Oil Filter Cartridge.......................................234 EVERY 1000 HOURS MAINTENANCE................................................................................237 Swing Machinery Case Oil - Change.......................................................................237 P.T.O Case Oil - Change.................................................................................238 Turbocharger Fastening Parts - Inspect/Tighten..........................................................239 Turbocharger Rotor Play - Inspect.......................................................................239 Corrosion Resister Cartridge - Replace..................................................................239 Fan Pulley Assembly and Tension Pulley Assembly - Lubricate.............................................240 Hydraulic Tank Breather Filter Element - Replace........................................................241 Welded Structure - Check................................................................................242 EVERY 2000 HOURS MAINTENANCE................................................................................245 Final Drive Case Oil - Change...........................................................................245 Injector - Check........................................................................................245 Engine Crankcase Breather - Clean.......................................................................246 Turbocharger - Inspect..................................................................................246 Alternator and Starting Motor - Inspect.................................................................246 Engine Valve Clearances - Inspect.......................................................................247 EVERY 4000 HOURS MAINTENANCE................................................................................247 Water Pump - Inspect....................................................................................247 Vibration Damper - Inspect..............................................................................247 Fan Pulley and Tension Pulley - Check...................................................................247 Checking for Looseness of High-pressure Clamp, Hardening of Rubber......................................248 Injector Nozzle Assembly - Replace......................................................................249 Checking for Missing Fuel Spray Prevention Cap, Hardening of Rubber.....................................249 EVERY 5000 HOURS MAINTENANCE................................................................................250 EVERY 8000 HOURS MAINTENANCE................................................................................252 High-pressure Piping Clamp - Replace....................................................................252 Fuel Spray Prevention Cap - Replace.....................................................................252 SPECIFICATIONS......................................................................................................255 SPECIFICATIONS..................................................................................................256 MEMO............................................................................................................258 OPTIONS AND ATTACHMENTS.............................................................................................259 GENERAL PRECAUTIONS.............................................................................................260 PRECAUTIONS RELATED TO SAFETY...............................................................................260 PRECAUTIONS WHEN INSTALLING ATTACHMENTS.....................................................................261 OPTIONAL PARTS AND ATTACHMENTS..................................................................................262 WORK EQUIPMENT COMBINATIONS.................................................................................262 SELECTION OF TRACK SHOES....................................................................................263 MEMO............................................................................................................266 LOADING SHOVEL......................................................................................................267 GENERAL LOCATIONS...............................................................................................268 INSTRUMENTS AND CONTROLS........................................................................................269 SWITCHES....................................................................................................269 OPERATION OF WORK EQUIPMENT.................................................................................270 PRECAUTIONS FOR MACHINE OPERATION...............................................................................273 PRECAUTONS DURING OPERATION.................................................................................273 PRECAUTIONS WHEN DISASSEMBLING MACHINE..........................................................................277 RELEASING PRESSURE..........................................................................................277 RELEASING PRESSURE FROM WORK EQUIPMENT CIRCUIT, SWING CIRCUIT, TRAVEL CIRCUIT...........................277 RELEASING PRESSURE IN ACCUMULATOR CIRCUIT...............................................................277 MAINTENANCE.....................................................................................................278 CHECK BEFORE STARTING.......................................................................................278 CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL..............................................................278 EVERY 10 HOURS SERVICE......................................................................................279 LUBRICATING.............................................................................................280 CHANGE OIL IN HYDRAULIC TANK, CLEAN STRAINER............................................................280 EXCAVATOR WORK..................................................................................................283 TRANSPORTATION..................................................................................................284 PARTS FOR TRANSPORT.........................................................................................284 CONSUMABLE PARTS LIST...........................................................................................286 SPECIFICATIONS..................................................................................................287 COMBINATIONS OF WORK EQUIPMENT..................................................................................288 COMBINATIONS OF WORK EQUIPMENT..............................................................................288
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