Komatsu PC270LC-7L excavator pdf shop manual

Table of Contents for KOMATSU-CEBM005905 manual

• CONTENTS
• SAFETY
  • Safety Notice
• GENERAL
• HOW TO READ THE SHOP MANUAL
  • Volumes
  • Distribution And Updating
  • Filing Method
  • Revised Edition Mark
  • Revisions
  • Symbols
• HOISTING INSTRUCTIONS
  • Hoisting
  • Wire Ropes
• PUSH-PULL TYPE COUPLER
• COATING MATERIALS
• STANDARD TIGHTENING TORQUE
  • Standard Tightening Torque Of Bolts And Nuts
  • Tightening Torque Of Split Flange Bolts
  • Tightening Torque For Flared Nuts
  • Table Of Tightening Torques For O-ring Boss Piping Joints
  • Table Of Tightening Torques For O-ring Boss Plugs
  • Tightening Torque For 102 And 114 Engine Series
  • Tightening Torque Table For Hoses (Taper Seal Type And Face Seal Type)
• ELECTRIC WIRE CODE
  • Classification By Thickness
  • Classification By Color And Code
• CONVERSION TABLES
  • Method Of Using The Conversion Table
• SPECIFICATION DIMENSION DRAWINGS
  • Dimensions
  • Working Ranges
• SPECIFICATIONS
• WEIGHT TABLE
• FUEL, COOLANT AND LUBRICANTS
  • Recommended Brands, Recommended Quality For Products Other Than Komatsu Genuine Oil
• ENGINE RELATED PARTS
• RADIATOR . OIL COOLER . AFTERCOOLER
• POWER TRAIN
• FINAL DRIVE
• SWING MACHINERY
• SWING CIRCLE
• TRACK FRAME . RECOIL SPRING
• IDLER
• CARRIER ROLLER
• TRACK ROLLER
• TRACK SHOE
• TRIPLE GROUSER SHOE
• HYDRAULIC EQUIPMENT LAYOUT DRAWING
• HYDRAULIC TANK
• HYDRAULIC PUMP
  • HPV95+95
  • LS valve
  • PC Valve
  • LS(PC)-EPC Valve
• CONTROL VALVE
• SELF PRESSURE REDUCING VALVE
  • Main Relief Valve
• VARIABLE PRESSURE COMPENSATION VALVE
• CLSS
• SWING MOTOR
  • Relief Valve Portion
• REVERSE PREVENTION VALVE
• CENTER SWIVEL JOINT
• TRAVEL MOTOR
  • Motor Operation
  • Parking Brake Operation
  • Brake Valve Operation
• TRAVEL JUNCTION VALVE
• TRAVEL PPC SHUTTLE VALVE
• VALVE CONTROL
• WORK EQUIPMENT . SWING PPC VALVE
• TRAVEL PPC VALVE
• SERVICE PPC VALVE
• SOLENOID VALVE
• PPC ACCUMULATOR
• RETURN OIL FILTER
• BOOM HYDRAULIC DRIFT PREVENTION VALVE
• LIFT CHECK VALVE
• ATTACHMENT CIRCUIT SELECTOR VALVE
• HYDRAULIC CYLINDERS
  • Boom Cylinder
  • Arm Cylinder
  • Bucket Cylinder
• WORK EQUIPMENT
  • 100 Hours
  • 500 Hours
  • Dimension Of Arm
  • Dimension Of Bucket
• AIR CONDITIONER
  • Piping
• ENGINE CONTROL
  • Fuel Control Dial
  • Engine Throttle And Pump Controller
• ELECTRONIC CONTROL SYSTEM
  • Total System Diagram
• MULTI MONITOR SYSTEM
  • Monitor Panel
  • Monitor Control, Display Portion Monitor Portion
  • Maintenance Function
• 7-SEGMENT MONITOR SYSTEM
  • Monitor panel
• SENSORS
  • Engine Oil Level Sensor
  • Engine Oil Pressure Sensor (For Low Pressure)
  • Coolant Temperature Sensor
  • Hydraulic Oil Temperature Sensor
  • Fuel Level Sensor
  • Air Cleaner Clogging Sensor
• STANDARD VALUE TABLES
  • Engine
  • Chassis
• SERVICE TOOLS
• ENGINE
  • Engine Speed
  • Exhaust Gas Color
  • Valve Clearance
  • Compression Pressure
  • Blow-by Pressure
  • Fuel Injection Timing
  • Engine Oil Pressure
  • Engine Speed Sensor
  • Defective Cylinder
• BELT TENSION - AIR COMPRESSOR
• ENGINE CONTROL SYSTEM FAILURE
• SWING CIRCLE BEARINGS
• TRACK SHOE TENSION
• SPROCKET
• OIL PRESSURE
  • Work Equipment, Swing And Travel
  • Control Circuit
  • Pump PC Control Circuit
  • Pump LS Control Circuit
  • Solenoid Valve Output Pressure
  • PPC Valve Output Pressure
• WORK EQUIPMENT AND SWING PPC VALVE
• WORK EQUIPMENT - HYDRAULIC DRIFT
• RELEASING PRESSURE IN HYDRAULIC CIRCUIT
• OIL LEAKAGE
• AIR BLEEDING OF VARIOUS PARTS
• DIODE INSPECTION PROCEDURES
• MULTI-MONITOR PANEL
  • Monitor Panel Functions - Conventional And Special
  • Conventional Function: Operator's Menu
  • Special Function: Service Menu
  • Operator's Menu And Display (Outline)
  • Table For Service And Failure Code Numbers
  • Service Menu
• 7-SEGMENTS MONITOR PANEL - SPECIAL FUNCTIONS
  • Ordinary functions and special functions of monitor panel
  • Display of operator menu
  • Operation and display of service menu
• ELECTRICAL SYSTEM TROUBLESHOOTING
• PM TUNE UP SERVICE
• POINTS TO REMEMBER WHEN TROUBLESHOOTING
• SEQUENCE OF EVENTS IN TROUBLESHOOTING
• POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
• CHECKS BEFORE TROUBLESHOOTING
• CLASSIFICATION AND STEPS FOR TROUBLESHOOTING
  • Classification Of Troubleshooting
  • Steps For Troubleshooting
  • Failure-looking Phenomenon And Troubleshooting No.
• ELECTRICAL CIRCUIT DIAGRAM SYSTEM
  • Connector Table
  • Connector Location Diagram
• ELECTRICAL CIRCUIT DIAGRAMS
• CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• T-BRANCH BOX AND T-BRANCH TABLE
• BEFORE TROUBLESHOOTING FOR DISPLAYED CODE
• POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM
  • Points To Remember If Abnormality Returns To Normal By Itself
  • User Code Memory Retention Function
  • Information In Troubleshooting Table
• E101 - ABNORMAL DATA IN ERROR HISTORY
• E112 - SHORT IN WINDSHIELD WIPER MOTOR DRIVE FORWARD ROTATION
• E113 - SHORT IN WINDSHIELD WIPER MOTOR DRIVE REVERSE ROTATION
• E114 - SHORT OR OPEN IN WINDOW WASHER SYSTEM
  • S/N A86001-A86216
  • S/N A86217-UP
• E115 - ABNORMAL WINDSHIELD WIPER MOTION
• E116 - ABNORMALITY IN PARKING WIPER ARM
• E201 - SHORT OR OPEN IN TRAVEL INTERLOCKING SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E203 - SHORT IN SWING holding brake SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E204 - SHORT IN MERGE/DIVIDE SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E205 - SHORT IN 2 STAGE RELIEF SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E206 - SHORT IN TRAVEL SPEED SHIFT SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E211 - OPEN IN TRAVEL INTERLOCKING SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E213 - OPEN IN SWING holding BRAKE SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E214 - OPEN OF MERGE/DIVIDE SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E215 - OPEN IN 2 STAGE RELIEF SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E216 - OPEN IN TRAVEL SPEED SOLENOID
  • S/N A86001-A86216
  • S/N A86217-UP
• E217 - ABNORMAL INPUT FOR MODEL CODE
• E218 - OPEN IN S-NET SIGNAL
• E222 - SHORT IN LS-EPC SOLENOID
• E223 - OPEN IN LS-EPC SOLENOID SYSTEM
• E224 - ABNORMAL F-PUMP PRESSURE SENSOR SIGNAL
• E225 - ABNORMAL R-PUMP PRESSURE SENSOR SIGNAL
• E226 - ABNORMAL PRESSURE SENSOR POWER SUPPLY
• E227 - ABNORMAL ENGINE RPM SIGNAL IN GOVERNOR PUMP CONTROLLER
• E228 - SHORT IN ATTACHMENT RETURN SWITCHING RELAY
• E232 - SHORT IN PC-EPC SOLENOID
• E233 - OPEN IN PC-EPC SOLENOID SYSTEM
• E238 - OPEN IN ATTACHMENT RETURN SWITCH RELAY
• E245 - SHORT IN ATTACHMENT OIL FLOW RATE EPC SYSTEM
• E246 - OPEN IN ATTACHMENT OIL FLOW RATE EPC SYSTEM
• E256 - INCORRECT NONVOLATILE MEMORY DATA
• E306 - ABNORMAL GOVERNOR POTENTIOMETER SIGNALS
• E308 - ABNORMAL FUEL DIAL SIGNALS
• E315 - SHORT IN BATTERY RELAY SYSTEM
• E316 - STEP OUT IN GOVERNOR MOTOR
• E317 - OPEN IN GOVERNOR MOTOR PHASE "A" AND "B"
• E318 - SHORT IN GOVERNOR MOTOR PHASE "A" AND "B"
• E501 - MODEL SELECTION FUNCTION NOT PROVIDED
• E502 - MODEL SELECTING SIGNAL FAULT
• A000N1 - ENGINE SPEED OUT OF RANGE AT HIGH IDLE
• A000N2 ENGINE SPEED OUT OF RANGE AT LOW IDLE
• AA10NX - AIR CLEANER CLOGGING
• AB00KE - LOW CHARGING VOLTAGE
  • S/N A86001-A86216
  • S/N A86217-UP
• B@BAZG - ABNORMALLY LOWERED ENGINE OIL PRESSURE
• B@BAZK - ABNORMALLY LOWERED ENGINE OIL LEVEL
• B@BCNS - ENGINE COOLING WATER OVERHEATING
• B@BCZK ABNORMALLY LOWERED RADIATOR WATER LEVEL
• B@HANS - HYDRAULIC OIL OVERHEATING
• ELECTRICAL SYSTEM (E-MODE)
  • Information Contained In Troubleshooting Table
  • Before Carrying Out Troubleshooting Of E Mode
• E-1 - ENGINE DOES NOT START (ENGINE DOES NOT ROTATE)
  • Serial No. A86001 - A86216
  • Serial No. A86217 - UP
• E-2 - ENGINE STOPS WHILE IN OPERATION
• E-3 - ENGINE SPEED IS IRREGULAR, OR THERE IS HUNTING
  • Serial No. A86001 - A86216
  • Serial No. A86217 - UP
• E-4 - ENGINE DOES NOT STOP
  • Serial No. A86001 - A86216
  • Serial No. A86001 - UP
• E-5 - AUTO-DECELERATOR DOES NOT WORK
• E-6 - AUTO ENGINE WARM-UP DEVICE DOES NOT WORK
• E-7 - PREHEATER DOES NOT WORK
• E-8 - ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT MOVE
• E-9 - ONE-TOUCH POWER MAX SWITCH DOES NOT WORK
• E-10 - NO DISPLAY IN MONITOR PANEL AT ALL
• E-11 - PART OF DISPLAY ON MONITOR PANEL IS MISSING
• E-12 - MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL
• E-13 - FUEL LEVEL MONITOR RED LAMP LIGHTS UP WHILE ENGINE IS RUNNING
• E-14 - ENGINE COOLING WATER TEMPERATURE GAUGE DOES NOT INDICATE CORRECTLY
• E-15 - HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY
• E-16 - FUEL GAUGE DOES NOT DISPLAY CORRECTLY
• E-17 - SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY
• E-18 - WHEN THE MONITOR SWITCH IS OPERATED, NO DISPLAY APPEARS
• E-19 - WINDSHIELD WIPER DOES NOT WORK
• E-20 - ALARMING BUZZER CANNOT BE CANCELLED
• E-21 - "BOOM RAISE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-22 - "BOOM LOWER" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-23 - "ARM DIGGING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-24 - "ARM DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-25 - "BUCKET DIGGING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-26 - "BUCKET DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-27 - "SWING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-28 - "TRAVEL" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-29 - "TRAVEL DIFFERENTIAL PRESSURE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-30 - "SERVICE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION
• E-31 - AIR CONDITIONER DOES NOT WORK
  • Serial No. A86001 - A86216
  • Serial No. A86217 and UP
• E-32 TRAVEL ALARM DOES NOT SOUND
• HYDRAULIC AND MECHANICAL SYSTEMS (H-MODE)
  • System Chart
  • Information Contained In Troubleshooting Table
• H-1 - ALL WORK EQUIPMENT LACK POWER, OR TRAVEL AND SWING SPEEDS ARE SLOW
• H-2 - ENGINE SPEED SHARPLY DROPS OR ENGINE STALLS
• H-3 - NO WORK EQUIPMENT, TRAVEL OR SWING MOVE
• H-4 - ABNORMAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP
• H-5 - AUTO-DECELERATOR DOES NOT WORK
• H-6 - FINE CONTROL MODE DOES NOT FUNCTION
• H-7 - BOOM MOVES SLOWLY OR LACKS POWER
• H-8 - ARM MOVES SLOWLY OR LACKS POWER
• H-9 - BUCKET MOVES SLOWLY OR LACKS POWER
• H-10 - WORK EQUIPMENT DOES NOT MOVE IN ITS SINGLE OPERATION
• H-11 - WORK EQUIPMENT HAS TO MUCH HYDRAULIC DRIFT
• H-12 - WORK EQUIPMENT HAS BIG TIME LAG
• H-13 - OTHER WORK EQUIPMENT MOVES WHEN RELIEVING SINGLE CIRCUIT
• H-14 - ONE-TOUCH POWER MAX. SWITCH DOES NOT OPERATE
• H-15 - IN COMPOUND OPERATION, WORK EQUIPMENT WITH LARGER LOAD MOVES SLOWLY
• H-16 - IN SWING + BOOM RAISE OPERATION, BOOM MOVES SLOWLY
• H-17 IN SWING + TRAVEL, TRAVEL SPEED DROPS SHARPLY
• H-18 - MACHINE SWERVES IN TRAVEL
• H-19 - MACHINE TRAVELS SLOWLY
• H-20 - MACHINE CANNOT BE EASILY STEERED OR LACKS POWER
• H-21 - TRAVEL SPEED DOES NOT SHIFT, OR IT IS TOO SLOW OR FAST.
• H-22 - TRACK SHOE DOES NOT TURN (ON ONE SIDE ONLY)
• H-23 - MACHINE DOES NOT SWING
• H-24 - SWING ACCELERATION IS POOR, OR SWING SPEED IS SLOW
• H-25 - EXCESSIVE OVERRUN WHEN STOPPING SWING
• H-26 - THERE IS A SHOCK WHEN STOPPING SWING
• H-27 - THERE IS ABNORMAL NOISE CAUSED WHEN STOPPING SWING
• H-28 - SWING NATURAL DRIFT IS TOO BIG
• METHOD OF USING MANUAL
• PRECAUTIONS DURING OPERATION
  • Precautions When Carrying Out Removal Work
  • Precautions When Carrying Out Installation Work
  • Precautions When Completing The Operations
  • Other Precautions
• SPECIAL TOOL LIST
• SKETCHES OF SPECIAL TOOLS
• STARTING MOTOR
  • Removal
  • Installation
• FUEL INJECTION PUMP
  • Removal
  • Installation
• ENGINE FRONT SEAL
  • Removal
  • Installation
• ENGINE REAR SEAL
  • Removal
  • Installation
• CYLINDER HEAD
  • Removal
  • Installation
• CONNECTOR REPAIR PROCEDURES
  • Contact Terminal Removal (HD30 Type)
  • Striping Insulation
  • Crimping Contact Terminal (HD30 Type)
  • Insertion Of Contact Terminal (HD30 Type)
  • Contact Terminal Removal (DT Type)
  • Striping Insulation
  • Crimping Contact Terminal (DT Type)
  • Insertion Of Contact Terminal (DT Type)
• RADIATOR
  • Removal
  • Installation
• HYDRAULIC OIL COOLER
  • Removal
  • Installation
• ENGINE AND HYDRAULIC PUMPS
  • Removal
  • Installation
• FINAL DRIVE
  • Removal
  • Installation
  • Disassembly
  • Assembly
• SWING MOTOR AND SWING MACHINERY
  • Removal
  • Installation
  • Disassembly
  • Assembly
• CARRIER ROLLER
  • Assembly
• TRACK ROLLER
  • Assembly
• IDLER
  • Disassembly
  • Assembly
• RECOIL SPRING
  • Disassembly
  • Assembly
• SPROCKET
  • Removal
  • Installation
• TRACK SHOE
  • Expansion Of Track Shoe
  • Assembly
• SWING CIRCLE
  • Removal
  • Installation
• REVOLVING FRAME
  • Removal
  • Installation
• CENTER SWIVEL JOINT
  • Removal
  • Installation
  • Disassembly
  • Assembly
• HYDRAULIC TANK
  • Removal
  • Installation
• CONTROL VALVE
  • Removal
  • Installation
  • Disassembly
  • Assembly
• HYDRAULIC PUMP
  • Removal
  • Installation
• HYDRAULIC PUMP INPUT SHAFT - OIL SEAL
  • Removal
  • Installation
• WORK EQUIPMENT PPC VALVE
  • Assembly
• TRAVEL PPC VALVE
  • Assembly
• HYDRAULIC CYLINDER
  • Disassembly
  • Assembly
• WORK EQUIPMENT
  • Removal
  • Installation
• AIR CONDITIONER
  • Removal
  • Installation
• COUNTERWEIGHT
  • Removal
  • Installation
• CAB
  • Removal
  • Installation
• OPERATOR'S CAB GLASS
  • Removal
  • Installation
• FRONT WINDOW
  • Removal
  • Installation
• MONITOR
  • Removal
  • Installation
• GOVERNOR PUMP CONTROLLER
  • Removal
  • Installation