Komatsu PC750-6, PC750SE-6, PC750LC-6, PC800-6, PC800SE-6 Hydraulic Excavator Service Repair Workshop Manual - SEBM025305
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This Complete Service Repair Workshop Manual PDF Download for the Komatsu PC750-6, PC750SE-6, PC750LC-6, PC800-6, PC800SE-6 Hydraulic Excavator has easy to read text sections with top quality diagrams, pictures and illustrations. The step by step instructions show you how to fault find or complete any repair or overhaul, correctly and efficiently, saving time and avoiding costly mistakes. All specifications and tolerances are listed. Functions of components and systems are also explained.
APPLICABLE MODELS :
Komatsu PC750-6 - S/N: 11001 and up
Komatsu PC750SE-6 - S/N: 11001 and up
Komatsu PC750LC-6 - S/N: 11001 and up
Komatsu PC800-6 - S/N: 31001 and up
Komatsu PC800SE-6 - S/N: 31001 and up
TABLE OF CONTENTS :
- GENERAL
- STRUCTURE AND FUNCTION
- TESTING AND ADJUSTING
- DISASSEMBLY AND ASSEMBLY
- MAINTENANCE STANDARD
- OTHERS
MANUAL SPECIFICATION :
File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
Product Code : SEBM025305
Total Pages : 730
This manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!
This manual PDF download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having PDF files instead of a hard-printed manual is that you can use the Search feature in Acrobat to find just what your looking for and just print out the exact pages you need or all manual.
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CONTENTS
01 GENERAL
SPECIFICATION DRAWINGS
SPECIFICATIONS
WEIGHT TABLE
FUEL, COOLANT AND LUBRICANTS
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
PTO
PTO LUBRICATION SYSTEM
POWER TRAIN
SWING MACHINERY
SWING CIRCLE
FINAL DRIVE
TRACK FRAME AND RECOIL SPRING
IDLER
CARRIER ROLLER
TRACK ROLLER
TRACK SHOE
MOTOR GREASE PUMP
HYDRAULIC TANK
HYDRAULIC PUMP
LINE OIL FILTER
PILOT OIL FILTER
DRAIN OIL FILTER
L.H. 5-SPOOL CONTROL VALVE
R.H. 4-SPOOL CONTROL VALVE
STRAIGHT-TRAVEL VALVE
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
PPC CONTROL RELIEF VALVE
SAFETY LOCK VALVE
PPC ACCUMULATOR
VALVE CONTROL
WORK EQUIPMENT, SWING PPC VALVE
TRAVEL PPC VALVE
SOLENOID VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
DIMENSIONS OF WORK EQUIPMENT
AIR CONDITIONER
ENGINE CONTROL
MACHINE CONTROL SYSTEM
MONITOR SYSTEM
SENSORS
20 TESTING AND ADJUSTING
STANDARD VALUE TABLE FOR ENGINE
STANDARD VALUE TABLE FOR CHASSIS
STANDARD VALUE TABLE FOR ELECTRICAL PARTS
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)
MEASURING EXHAUST TEMPERATURE
MEASURING EXHAUST COLOR
ADJUSTING VALVE CLEARANCE
MEASURING BLOW-BY PRESSURE
MEASURING COMPRESSION PRESSURE
MEASURING ENGINE OIL PRESSURE
HANDLING EQUIPMENT IN FUEL CIRCUIT
RELEASING REMAINING PRESSURE IN FUEL SYSTEM
MEASURING FUEL PRESSURE
REDUCED CYLINDER MODE OPERATION FOR ENGINE
BLEEDING AIR FROM FUEL CIRCUIT
CHECKING FOR LEAKAGE IN FUEL CIRCUIT
TESTING AND ADJUSTING ALTERNATOR BELT TENSION
TESTING AND ADJUSTING FAN BELT TENSION
TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR DRIVE BELT TENSION
HANDLING ENGINE CONTROLLER HIGH VOLTAGE CIRCUIT
ADJUSTING ENGINE SPEED SENSOR
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
TESTING AND ADJUSTING PISTON PUMP CONTROL PRESSURE
MEASURING SERVO PISTON STROKE
MEASURING PPC VALVE OUTPUT PRESSURE
TESTING SOLENOID VALVE OUTPUT PRESSURE
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
TESTING TRAVEL DEVIATION
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
MEASURING OIL LEAKAGE
TESTING CLEARANCE OF SWING CIRCLE BEARING
TESTING AND ADJUSTING TRACK SHOE TENSION
BLEEDING AIR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
PROCEDURE FOR CHECKING DIODE
TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
SEQUENCE OF EVENTS IN TROUBLESHOOTING
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
CHECKS BEFORE TROUBLESHOOTING
CONNECTOR TYPES AND MOUNTING LOCATIONS
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM
DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL
METHOD OF USING JUDGEMENT TABLE
METHOD OF USING TROUBLESHOOTING CHARTS
DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE
TROUBLESHOOTING OF COMMUNICATION ABNORMALITY SYSTEM (N MODE)
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
ELECTRICAL CIRCUIT DIAGRAM FOR N MODE SYSTEM
N-1 [E117, E118 OCCUR AT SAME TIME] MONITOR PANEL COMMUNICATION ABNORMALITY
N-2 [E117, E218 OCCUR AT SAME TIME] ENGINE CONTROLLER COMMUNICATION ABNORMALITY
N-3 [E118, E955 OCCUR AT SAME TIME] PUMP CONTROLLER COMMUNICATION ABNORMALITY
TROUBLESHOOTING OF ENGINE CONTROLLER SYSTEM (E MODE)
ACTION TAKEN BY CONTROLLER AND CONDITION OF MACHINE WHEN ERROR CODE IS DISPLAYED
JUDGEMENT TABLE FOR ENGINE CONTROLLER AND ENGINE RELATED PARTS
ELECTRICAL CIRCUIT DIAGRAM FOR E MODE SYSTEM
E-1 [E91b] (ABNORMALITY IN ENGINE SPEED NE SENSOR SYSTEM) IS DISPLAYED
E-2 [E91C] (ABNORMALITY IN ENGINE G ROTATION SENSOR SYSTEM) IS DISPLAYED
E-3 [E920] (ABNORMALITY IN MODEL SELECTION SYSTEM) IS DISPLAYED
E-4 [E922] (ENGINE OVERRUN) IS DISPLAYED
E-5 [E924] (DROP IN ENGINE OIL PRESSURE) IS DISPLAYED
E-6 [E931] (ABNORMALITY IN FUEL CONTROL DIAL SENSOR SYSTEM) IS DISPLAYED
E-7 [E934] (ABNORMALITY IN ENGINE WATER HIGH-TEMPERATURE SENSOR SYSTEM) IS DISPLAYED
E-8 [E936] (ABNORMALITY IN ENGINE OIL PRESSURE SWITCH SYSTEM) IS DISPLAYED
E-9 [E93C] (ABNORMALITY IN BOOST PRESSURE SENSOR SYSTEM) IS DISPLAYED
E-10 [E93d] (ABNORMALITY IN FUEL TEMPERATURE SENSOR SYSTEM) IS DISPLAYED
E-11 [E954] (SHORT CIRCUIT IN STARTING SWITCH C SYSTEM) IS DISPLAYED
E-12 [E955] (ABNORMALITY IN NETWORK SYSTEM) IS DISPLAYED
E-13 [E956] (POWER SOURCE SYSTEM ABNORMALITY 1) IS DISPLAYED
E-14 [E957] (POWER SOURCE SYSTEM ABNORMALITY 2) IS DISPLAYED
E-15 [E95A] (ABNORMALITY IN FUEL INJECTION AMOUNT ADJUSTMENT SWITCH SIGNAL) IS DISPLAYED
E-16 [E96A] (ABNORMALITY IN ENGINE WATER LOW-TEMPERATURE SENSOR SYSTEM) IS DISPLAYED
E-17 [E970] (EXCESS CURRENT IN FUEL SUPPLY PUMP PCV1 SYSTEM) IS DISPLAYED
E-18 [E971] (EXCESS CURRENT IN FUEL SUPPLY PUMP PCV2 SYSTEM) IS DISPLAYED
E-19 [E974] (DISCONNECTION IN FUEL SUPPLY PUMP PCV1 SYSTEM) IS DISPLAYED
E-20 [E975] (DISCONNECTION IN FUEL SUPPLY PUMP PCV2 SYSTEM) IS DISPLAYED
E-21 [E977] (ABNORMALITY IN COMMON RAIL FUEL PRESSURE SENSOR SYSTEM) IS DISPLAYED
E-22 [E979] (COMMON RAIL FUEL HIGH PRESSURE ABNORMALITY 1) IS DISPLAYED, [E97A] (COMMON RAIL FUEL HIGH PRESSURE ABNORMALITY 2) IS DISPLAYED
E-23 [E97b] (FUEL SUPPLY PUMP NON-FORCE FEED 1) IS DISPLAYED, [E97C] (FUEL SUPPLY PUMP NON-FORCE FEED 2) IS DISPLAYED
E-24 [E97d] (ABNORMALITY IN COMMON RAIL FUEL PRESSURE) IS DISPLAYED
E-25 [E980] (DEFECTIVE ENGINE CONTROLLER) IS DISPLAYED
E-26 [E981] (DISCONNECTION IN NO. 1 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-27 [E982] (DISCONNECTION IN NO. 2 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-28 [E983] (DISCONNECTION IN NO. 3 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-29 [E984] (DISCONNECTION IN NO. 4 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-30 [E985] (DISCONNECTION IN NO. 5 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-31 [E986] (DISCONNECTION IN NO. 6 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-32 [E98A] (SHORT CIRCUIT IN NO. 1, NO. 2, NO. 3 FUEL INJECTOR SYSTEM) IS DISPLAYED
E-33 [E98b] (SHORT CIRCUIT IN NO. 3, NO. 4, NO. 5 FUEL INJECTOR SYSTEM) IS DISPLAYED
TROUBLESHOOTING OF PUMP CONTROLLER SYSTEM (C MODE)
POINTS TO REMEMBER WHEN TROUBLESHOOTING CONTROLLER SYSTEM
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
JUDGEMENT TABLE FOR PUMP CONTROLLER AND HYDRAULIC RELATED PARTS
ELECTRICAL CIRCUIT DIAGRAM FOR C MODE SYSTEM
C-1 ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM (CONTROLLER LED IS OFF)
C-2 [E232] SHORT CIRCUIT IN PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-3 [E233] DISCONNECTION IN PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-4 [E203] SHORT CIRCUIT IN SWING HOLDING BRAKE SOLENOID SYSTEM IS DISPLAYED
C-5 [E213] DISCONNECTION IN SWING HOLDING BRAKE SOLENOID SYSTEM IS DISPLAYED
C-6 [E201] SHORT CIRCUIT IN CO CANCEL SOLENOID SYSTEM IS DISPLAYED
C-7 [E211] DISCONNECTION IN CO CANCEL SOLENOID SYSTEM IS DISPLAYED
C-8 [E202] SHORT CIRCUIT IN STRAIGHT-TRAVEL SOLENOID SYSTEM IS DISPLAYED
C-9 [E212] DISCONNECTION IN STRAIGHT-TRAVEL SOLENOID SYSTEM IS DISPLAYED
C-10 [E204] SHORT CIRCUIT IN 2-STAGE RELIEF SOLENOID SYSTEM IS DISPLAYED
C-11 [E214] DISCONNECTION IN 2-STAGE RELIEF SOLENOID SYSTEM IS DISPLAYED
C-12 [E205] SHORT CIRCUIT IN SWING PRIORITY SELECTOR SOLENOID SYSTEM IS DISPLAYED
C-13 [E211] DISCONNECTION IN SWING PRIORITY SELECTOR SOLENOID SYSTEM IS DISPLAYED
C-14 [E206] SHORT CIRCUIT IN TRAVEL SPEED SOLENOID SYSTEM IS DISPLAYED
C-15 [E216] DISCONNECTION IN TRAVEL SPEED SOLENOID SYSTEM IS DISPLAYED
C-16 [E217] MODEL SELECTION INPUT ERROR IS DISPLAYED
C-17 [E227] ABNORMALITY IN ENGINE SPEED SENSOR SYSTEM IS DISPLAYED
C-18 ABNORMALITY IN MACHINE PUSH-UP SOLENOID SYSTEM (NO SERVICE CODE DISPLAYED)
C-19 ABNORMALITY IN SHOCKLESS BOOM SOLENOID SYSTEM (NO SERVICE CODE DISPLAYED)
C-20 [E207] SHORT CIRCUIT IN FLASH LIGHT RELAY DRIVE SYSTEM IS DISPLAYED
C-21 FLASH LIGHT RELAY DOES NOT WORK
C-22 [E231] ABNORMALITY (SHORT CIRCUIT) IN POWER SOURCE HOLDING RELAY OUTPUT SYSTEM FOR STEP LIGHT IS DISPLAYED
C-23 STEP LIGHT SWITCH DOES NOT WORK
C-24 [E302] SHORT CIRCUIT IN STEP LIGHT RELAY DRIVE SYSTEM IS DISPLAYED
C-25 [303] DISCONNECTION IN STEP LIGHT RELAY DRIVE SYSTEM IS DISPLAYED
C-26 STEP LIGHT DOES NOT LIGHT UP
C-27 [E228] ABNORMALITY IN AUTO-DECELERATION OUTPUT SYSTEM IS DISPLAYED
TROUBLESHOOTING OF ENGINE THROTTLE & PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE)
ELECTRICAL CIRCUIT DIAGRAM FOR F MODE SYSTEM
F-1 [BIT PATTERN 20-(1)] SWING OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-2 [BIT PATTERN 20-(2)] R.H. TRAVEL OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-3 [BIT PATTERN 20-(3)] BOOM LOWER OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-4 [BIT PATTERN 20-(4)] BOOM RAISE OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-5 [BIT PATTERN 20-(5)] ARM IN OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-6 [BIT PATTERN 20-(6)] ARM OUT OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-7 [BIT PATTERN 21-(1)] BUCKET CURL OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-8 [BIT PATTERN 21-(2)] BUCKET DUMP OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-9 [BIT PATTERN 20-(5)] L.H. TRAVEL OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-10 [BIT PATTERN 21-(4)] SERVICE OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-11 [BIT PATTERN 21-(3)] SWING LOCK SWITCH DOES NOT LIGHT UP
F-12 [BIT PATTERN 24-(1)] WHEN STEP LIGHT SWITCH IS ON, IT DOES NOT GO OUT
F-13 [BIT PATTERN 24-(2)] WHEN HORN SWITCH IS ON, IT DOES NOT GO OUT
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)
TABLE OF FAILURE MODES AND CAUSES
BEFORE CARRYING OUT TROUBLESHOOTING OF HYDRAULIC SYSTEM (H MODE)
H-1 SPEEDS OF ALL WORK EQUIPMENT, SWING, TRAVEL ARE SLOW OR LACK POWER
H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS
H-3 NO WORK EQUIPMENT, TRAVEL, SWING MOVE
H-4 ABNORMAL NOISE GENERATED (AROUND PUMP)
H-5 AUTO-DECELERATION DOES NOT WORK
H-6 WORK EQUIPMENT SPEED IS SLOW (BOOM, ARM, BUCKET)
H-7 WORK EQUIPMENT (BOOM, ARM, BUCKET) DOES NOT MOVE (BUT TRAVEL AND SWING ARE NORMAL)
H-8 EXCESSIVE HYDRAULIC DRIFT
H-9 EXCESSIVE TIME LAG
H-10 EXCESSIVE SHOCK WHEN BOOM IS STOPPED
H-11 DEFECTIVE ACTUATION OF MACHINE PUSH-UP FUNCTION
H-12 TRAVEL DEVIATION IS EXCESSIVE DURING COMPOUND OPERATIONS
H-13 MACHINE DEVIATES NATURALLY TO ONE SIDE DURING TRAVEL OPERATIONS
H-14 DEVIATION IS EXCESSIVE WHEN STARTING
H-15 TRAVEL SPEED IS SLOW
H-16 TRAVEL SPEED DOES NOT SWITCH
H-17 TRAVEL DOES NOT MOVE (ONE SIDE ONLY)
H-18 DOES NOT SWING
H-19 SWING SPEED IS SLOW OR SWING ACCELERATION IS POOR
H-20 SWING SPEED IS SLOW OR SWING ACCELERATION IS POOR DURING COMPOUND OPERATIONS WITH ARM, BUCKET
H-21 SWING SPEED IS SLOW OR SWING ACCELERATION IS POOR DURING COMPOUND OPERATIONS WITH BOOM RAISE WHEN SWING PRIORITY IS ON
H-22 EXCESSIVE OVERRUN WHEN STOPPING SWING
H-23 EXCESSIVE SHOCK WHEN STOPPING SWING
H-24 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING
H-25 EXCESSIVE HYDRAULIC DRIFT OF SWING
TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)
ACTION TAKEN BY MONITOR PANEL WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
ELECTRICAL CIRCUIT DIAGRAM FOR M MODE SYSTEM
M-1 [E101] (ABNORMALITY IN ERROR DATA) OR [E102] (ABNORMALITY IN CLOCK DATA) IS DISPLAYED
M-2 [E103] (SHORT CIRCUIT IN BUZZER OUTPUT SYSTEM) IS DISPLAYED
M-3 [E104] (AIR CLEANER CLOGGING DETECTION) IS DISPLAYED
M-4 [E108] (ENGINE WATER TEMPERATURE 105℃) IS DISPLAYED
M-5 WHEN STARTING SWITCH IS TURNED ON, NONE OF LAMPS ON MONITOR PANEL LIGHT UP FOR 3 SECONDS
M-6 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL LAMPS ALL STAY LIGHTED UP AND DO NOT GO OUT
M-7 WHEN STARTING SWITCH IS TURNED ON, ITEMS LIGHTED UP ON MONITOR PANEL ARE DIFFERENT FROM ACTUAL MACHINE
M-8 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), BASIC CHECK ITEMS FLASH
M-9 PREHEATING IS NOT BEING USED BUT PREHEATING DISPLAY MOTOR LAMP LIGHTS UP
M-10 WHEN ENGINE IS STARTED, BASIC CHECK ITEMS FLASH
M-11 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CAUTION ITEMS AND EMERGENCY STOP ITEMS FLASH
M-12 WHEN ENGINE IS STARTED, CAUTION ITEMS AND EMERGENCY STOP ITEMS FLASH
M-13 OPERATION OF ALARM BUZZER IS NOT NORMAL
M-14 NIGHT LIGHTING ON MONITOR PANEL DOES NOT LIGHT UP
M-15 ENGINE WATER TEMPERATURE DISPLAY IS NOT NORMAL
M-16 FUEL LEVEL GAUGE DISPLAY IS NOT NORMAL
M-17 SWING LOCK SWITCH IS TURNED ON BUT SWING LOCK MONITOR LAMP DOES NOT LIGHT UP
M-18 WHEN SWING BRAKE RELEASE SWITCH IS SET TO RELEASE (EMERGENCY), SWING LOCK MONITOR LAMP DOES NOT FLASH
M-19 SERVICE METER DOES NOT GIVE NORMAL DISPLAY
M-20 DEFECTIVE FUEL LEVEL SENSOR SYSTEM
M-21 DEFECTIVE ENGINE OIL LEVEL SENSOR SYSTEM
M-22 DEFECTIVE COOLANT LEVEL SENSOR SYSTEM
M-23 DEFECTIVE HYDRAULIC OIL LEVEL SENSOR SYSTEM
M-24 WIPER IS NOT ACTUATED WHEN WIPER SWITCH IS OPERATED OR WIPER IS ACTUATED WHEN WIPER SWITCH IS NOT OPERATED
M-25 WINDOW WASHER IS NOT ACTUATED WHEN WIPER SWITCH IS OPERATED OR WINDOW WASHER IS ACTUATED WHEN SWITCH IS NOT OPERATED
M-26 ELECTRIC GREASE GUN DOES NOT WORK (MACHINES EQUIPPED WITH ELECTRIC GREASE GUN)
30 DISASSEMBLY AND ASSEMBLY
METHOD OF USING MANUAL
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
FUEL SUPPLY PUMP
REMOVAL
INSTALLATION
FUEL INJECTOR
REMOVAL
INSTALLATION
NOZZLE TIP
REMOVAL
INSTALLATION
ENGINE FRONT SEAL
REMOVAL AND INSTALLATION
ENGINE REAR SEAL
REMOVAL
INSTALLATION
CYLINDER HEAD ASSEMBLY
REMOVAL
INSTALLATION
AFTERCOOLER CORE
REMOVAL, INSTALLATION
FAN GUARD, RADIATOR, HYDRAULIC OIL COOLER ASSEMBLY
REMOVAL
INSTALLATION
FUEL COOLER AND AIR CONDITIONER CONDENSER ASSEMBLY
REMOVAL, INSTALLATION
FUEL TANK ASSEMBLY
REMOVAL
INSTALLATION
ENGINE, PTO AND HYDRAULIC PUMP ASSEMBLY
REMOVAL
INSTALLATION
PTO ASSEMBLY
REMOVAL
INSTALLATION
PTO ASSEMBLY
DISASSEMBLY
ASSEMBLY
FINAL DRIVE ASSEMBLY
DISASSEMBLY
ASSEMBLY
REVOLVING FRAME ASSEMBLY
REMOVAL
INSTALLATION
SWING MACHINERY ASSEMBLY
REMOVAL, INSTALLATION
SWING MACHINERY ASSEMBLY
DISASSEMBLY
ASSEMBLY
SWING CIRCLE ASSEMBLY
REMOVAL, INSTALLATION
TRACK SHOE ASSEMBLY
REMOVAL
INSTALLATION
ONE LINK IN FIELD
DISASSEMBLY
ASSEMBLY
IDLER ASSEMBLY
REMOVAL, INSTALLATION
IDLER ASSEMBLY
DISASSEMBLY
ASSEMBLY
IDLER ADJUSTMENT CYLINDER ASSEMBLY
DISASSEMBLY, ASSEMBLY
RECOIL SPRING ASSEMBLY
REMOVAL, INSTALLATION
RECOIL SPRING ASSEMBLY
DISASSEMBLY
ASSEMBLY
CARRIER ROLLER ASSEMBLY
REMOVAL, INSTALLATION
CARRIER ROLLER ASSEMBLY
DISASSEMBLY
ASSEMBLY
TRACK ROLLER ASSEMBLY
REMOVAL, INSTALLATION
TRACK ROLLER ASSEMBLY
DISASSEMBLY
ASSEMBLY
HYDRAULIC TANK ASSEMBLY
REMOVAL
INSTALLATION
MAIN PUMP (NO. 1 PUMP) ASSEMBLY
REMOVAL
INSTALLATION
MAIN PUMP (NO. 2 PUMP) ASSEMBLY
REMOVAL
INSTALLATION
MAIN PUMP INPUT SHAFT OIL SEAL
REMOVAL, INSTALLATION
CONTROL・PTO LUBRICATION PUMP ASSEMBLY
REMOVAL, INSTALLATION
MAIN RELIEF VALVE ASSEMBLY
DISASSEMBLY, ASSEMBLY
CONTROL VALVE ASSEMBLY
REMOVAL
INSTALLATION
DISASSEMBLY
ASSEMBLY
SOLENOID VALVE ASSEMBLY
REMOVAL
INSTALLATION
BOOM DAMPING VALVE ASSEMBLY
REMOVAL, INSTALLATION
SWING MOTOR ASSEMBLY
REMOVAL, INSTALLATION
CENTER SWIVEL JOINT ASSEMBLY
REMOVAL, INSTALLATION
CENTER SWIVEL JOINT ASSEMBLY
DISASSEMBLY, ASSEMBLY
TRAVEL MOTOR ASSEMBLY
REMOVAL, INSTALLATION
WORK EQUIPMENT PPC VALVE ASSEMBLY
DISASSEMBLY
ASSEMBLY
TRAVEL PPC VAVEL ASSEMBLY
DISASSEMBLY
ASSEMBLY
BUCKET CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
ARM CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
BOOM CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
BOTTOM DUMP CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
HYDRAULIC CYLINDER ASSEMBLY
DISASSEMBLY
ASSEMBLY
BUCKET ASSEMBLY
REMOVAL
INSTALLATION
ARM ASSEMBLY
REMOVAL
INSTALLATION
BOOM ASSEMBLY
REMOVAL
INSTALLATION
WORK EQUIPMENT ASSEMBLY
REMOVAL
INSTALLATION
OPERATOR'S CAB ASSEMBLY
REMOVAL
INSTALLATION
COUNTERWEIGHT ASSEMBLY
REMOVAL, INSTALLATION
90 OTHERS
HYDRAULIC CIRCUIT DRAWING (BACKHOE SPECIFICATION)
HYDRAULIC CIRCUIT DRAWING (LOADING SHOVEL SPECIFICATION)
ELECTRIC CIRCUIT DIAGRAM (1/4)
ELECTRIC CIRCUIT DIAGRAM (2/4)
ELECTRIC CIRCUIT DIAGRAM (3/4)
ELECTRIC CIRCUIT DIAGRAM (4/4)
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Komatsu PC750-6, PC750SE-6, PC750LC-6, PC800-6, PC800SE-6 Excavator Shop Manual - SEBM025305.pdf