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Komatsu PC450-6K, PC450LC-6K Hydraulic Excavator Shop Manual (K30001 and up) - EEBM001304


This Complete Service Repair Workshop Manual PDF Download for the PC450-6K, PC450LC-6K Komatsu Hydraulic Excavator (S/N: K30001 and up) 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 PC450-6K - S/N: K30001 and up
Komatsu PC450LC-6K - S/N: K30001 and up


TABLE OF CONTENTS :

01 GENERAL
10 STRUCTURE AND FUNCTION
20 TESTING AND ADJUSTING
30 DISASSEMBLY AND ASSEMBLY
40 MAINTENANCE STANDARD


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
Product Code : EEBM001304
Total Pages : 789


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

SAFETY
SAFETY NOTICE
FOREWARD
GENERAL
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
COATING MATERIALS
STANDARD TIGHTENING TORQUE
ELECTRIC WIRE CODE
CONVERSION TABLE

01 GENERAL
SPECIFICATION DRAWINGS
SPECIFICATIONS
WEIGHT TABLE
FUEL, COOLANT AND LUBRICANTS

10 STRUCTURE AND FUNCTION
PARTS RELATED TO ENGINE
RADIATOR, OIL COOLER
POWER TRAIN
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME, RECOIL SPRING
TRACK SHOE
HYDRAULIC PIPING DRAWING
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK, HYDRAULIC FILTER
HYDRAULIC PUMP
CONTROL VALVE
SUCTION SAFETY VALVE
CLSS
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
VALVE CONTROL
WORK EQUIPMENT, SWING PPC VALVE
TRAVEL PPC VALVE
SERVICE PPC VALVE
PPC SAFETY LOCK VALVE
PPC ACCUMULATOR
PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE
EPC SOLENOID VALVE
FOR LS SELECT, BOOM HI 2 STAGE SAFETY VALVE, MERGE/FLOW DIVIDER, TRAVEL SPEED, SWING BRAKE
FOR LS VALVE CONTROL
BOOM SAFETY VALVE
HYDRAULIC CYLINDER
OVERLOAD WARNING DEVICE
WORK EQUIPMENT
ACTUAL ELECTRIC WIRING DIAGRAM
ELECTRIC CIRCUIT DIAGRAM
ENGINE CONTROL
ELECTRONIC CONTROL SYSTEM
MACHINE MONITOR SYSTEM
BREAKER MODE HYDRAULIC PERFORMANCE

20 TESTING AND ADJUSTING
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
STANDARD VALUE TABLE FOR ELECTRICAL PARTS
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
MEASURING EXHAUST COLOR
VALVES AND INJECTORS
MEASURING BLOW-BY PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
MEASURING ENGINE OIL PRESSURE
TESTING AND ADJUSTING FAN BELT TENSION
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR
ADJUSTING ENGINE SPEED SENSOR
MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)
TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)
TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE
TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
TESTING SOLENOID VALVE OUTPUT PRESSURE
MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
TESTING TRAVEL DEVIATION
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
MEASURING OIL LEAKAGE
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TESTING CLEARANCE OF SWING CIRCLE BEARING
TESTING AND ADJUSTING TRACK SHOE TENSION
BLEEDING AIR
TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
SEQUENCE OF EVENTS IN TROUBLESHOOTING
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
CHECKS BEFORE TROUBLSHOOTING
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
SERVICE CODE TABLE
TROUBLESHOOTING OF COMMUNICATION ABNORMALITY SYSTEM (N MODE)
N-1 [E218] COMMUNICATION ABNORMALITY
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) (E MODE)
POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER SYSTEM
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
JUDGEMENT TABLE FOR GOVERNOR, PUMP GOVERNOR (GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS
ELECTRICAL CIRCUIT DIAGRAM FOR E MODE SYSTEM
E-1 ABNORMALITY IN GOVERNOR, PUMP CONTROLLER POWER SOURCE (CONTROLLER LED IS OFF)
E-2 [E308] ABNORMALITY IN FUEL CONTROL DIAL INPUT VALUE IS DISPLAYED
E-3 [E317] ABNORMALITY (DISCONNECTION) IN MOTOR DRIVE SYSTEM IS DISPLAYED
E-4 [E318] (SHORT CIRCUIT) IN MOTOR DRIVE SYSTEM IS DISPLAYED
E-5 [E306] ABNORMALITY IN FEEDBACK POTENTIOMETER SYSTEM IS DISPLAYED
E-6 [E315] ABNORMALITY (SHORT CIRCUIT) IN BATTERY RELAY OUTPUT SYSTEM IS DISPLAYED
E-7 [E316] ABNORMALITY (STEP OUT) IN MOTOR IS DISPLAYED
E-8 ENGINE DOES NOT START
E-9 ENGINE SPEED IS IRREGULAR
a) IDLING SPEED IS IRREGULAR
b) THERE IS HUNTING
E-10 LACK OF OUTPUT (ENGINE HIGH IDLING SPEED IS TOO LOW)
E-11 ENGINE DOES NOT STOP
E-12 DEFECTIVE OPERATION OF BATTERY RELAY SYSTEM (ENGINE DOES NOT STOP)
TROUBLESHOOTING OF ENGINE (S MODE)
TROUBLESHOOTING PROCEDURES AND TECHNIQUES
TROUBLESHOOTING SYMPTOMS CHARTS
ALTERNATOR NOT CHARGING OR INSUFFICIENT CHARGING
ALTERNATOR OVERCHARGING
COOLANT LOSS - EXTERNAL
COOLANT TEMPERATURE ABOVE NORMAL - SUDDEN OVERHEAT (CONTINUED)
COOLANT TEMPERATURE BELOW NORMAL
CRANKCASE GASES (BLOWBY) - EXCESSIVE
ENGINE ACCELERATION/RESPONSE POOR
ENGINE CRANKS BUT WILL NOT START (NO SMOKE FROM EXHAUST)
ENGINE DECELERATES SLOWLY
ENGINE DIFFICULT TO START OR WILL NOT START - EXHAUST SMOKE PRESENT
ENGINE NOISE EXCESSIVE*
ENGINE NOISE EXCESSIVE - COMBUSTION KNOCKS
ENGINE NOISE EXCESSIVE - CONNECTING ROD*
ENGINE NOISE EXCESSIVE - MAIN BEARING*
ENGINE NOISE EXCESSIVE - PISTON*
ENGINE NOISE EXCESSIVE - TURBOCHARGER*
ENGINE POWER OUTPUT LOW - BASICS
ENGINE POWER OUTPUT - PERFORMANCE MEASUREMENT
ENGINE RUNS ROUGH AT IDLE
ENGINE RUNS ROUGH OR MISFIRES
ENGINE SHUTS OFF UNEXPECTEDLY OR DIES DURING DECELERATION
ENGINE SPEED SURGES AT LOW IDLE
ENGINE SPEED SURGES (OTHER THAN LOW IDLE)
ENGINE VIBRATION - EXCESSIVE
ENGINE WILL NOT CRANK OR CRANKS SLOWLY (ELECTRIC STARTING MOTOR)
ENGINE WILL NOT SHUT OFF
ENGINE WILL START BUT WILL NOT KEEP RUNNING
FUEL IN COOLANT
FUEL IN LUBRICATING OIL
INTAKE MANIFOLD AIR TEMPERATURE ABOVE SPECIFICATION
LUBRICATING OIL CONSUMPTION EXCESSIVE
LUBRICATING OIL CONTAMINATED
LUBRICATING OIL PRESSURE - HIGH
LUBRICATING OIL PRESSURE - LOW
LUBRICATING OIL SLUDGE IN THE ENGINE CRANKCASE EXCESSIVE
LUBRICATING OIL TEMPERATURE ABOVE SPECIFICATION
LUBRICATING OIL IN THE COOLANT
SMOKE, BLACK - EXCESSIVE
SMOKE, BLACK - EXCESSIVE - PERFORMANCE MEASUREMENT
SMOKE, WHITE - EXCESSIVE
TURBOCHARGER BOOST PRESSURE LOW
TURBOCHARGER LEAKS - ENGINE OIL OR FUEL
ENGINE NOISE DIAGNOSTIC PROCEDURES - GENERAL INFORMATION
MAIN BEARING NOISE
CONNECTING ROD BEARING NOISE
PISTON NOISE
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER (PUMP CONTROL SYSTEM) (C MODE)
POINTS TO REMEMBER WHEN TROUBLESHOOTING PUMP CONTROLLER SYSTEM
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE - CONTINUED
JUDGEMENT TABLE FOR GOVERNOR, PUMP CONTROLLER (PUMP CONTROL SYSTEM) AND HYDRAULIC RELATED PARTS
ELECTRICAL CIRCUIT DIAGRAM FOR C MODE
C-1 ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM (CONTROLLER LED IS OFF)
C-2 [E232] SHORT CIRCUIT IN FRONT PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-3 [E233] DISCONNECTION IN FRONT PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-4 [E236] SHORT CIRCUIT IN REAR PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-5 [E237] DISCONNECTION IN REAR PUMP TVC SOLENOID SYSTEM IS DISPLAYED
C-6 [E202] SHORT CIRCUIT IN LS SELECT SOLENOID SYSTEM IS DISPLAYED
C-7 [E212] DISCONNECTION IN LS SELECT SOLENOID SYSTEM IS DISPLAYED
C-8 [E203] SHORT CIRCUIT IN SWING BRAKE SOLENOID SYSTEM IS DISPLAYED
C-9 [E213] DISCONNECTION IN SWING BRAKE SOLENOID SYSTEM IS DISPLAYED
C-10 [E204] SHORT CIRCUIT IN PUMP MERGE/DIVIDER SOLENOID SYSTEM IS DISPLAYED
C-11 [E214] DISCONNECTION IN PUMP MERGE/DIVIDER SOLENOID SYSTEM IS DISPLAYED
C-12 [E206] SHORT CIRCUIT IN TRAVEL SPEED SOLENOID SYSTEM IS DISPLAYED
C-13 [E216] DISCONNECTION IN TRAVEL SPEED SOLENOID SYSTEM IS DISPLAYED
C-14 [E217] MODEL SELECTION INPUT ERROR IS DISPLAYED
C-15 [E222] SHORT CIRCUIT IN LS-EPC SOLENOID SYSTEM IS DISPLAYED
C-16 [E223] DISCONNECTION IN LS-EPC SOLENOID SYSTEM IS DISPLAYED
C-17 [E224] ABNORMALITY IN FRONT PUMP PRESSURE SENSOR SYSTEM IS DISPLAYED
C-18 [E225] ABNORMALITY IN REAR PUMP PRESSURE SENSOR SYSTEM IS DISPLAYED
C-19 [E226] ABNORMALITY IN PRESSURE SENSOR POWER SOURCE SYSTEM IS DISPLAYED
C-20 [E227] ABNORMALITY IN ENGINE SPEED SENSOR SYSTEM IS DISPLAYED
C-21 ABNORMALITY IN MACHINE 2 - STAGE PRESSURE RELIEF SOLENOID SYSTEM (NO SERVICE CODE DISPLAYED)
TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE)
ELECTRICAL CIRCUIT DIAGRAM FOR F MODE
F-1 BIT PATTERN 20-(1) SWING OIL PRESSURE SWITCH DOES NOT LIGHT UP
F-2 BIT PATTERN 20-(2) 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 21-(3) SWING LOCK SWITCH DOES NOT LIGHT UP
F-11 BIT PATTERN 22-(6) L.H. KNOB SWITCH DOES NOT LIGHT UP
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)
PUMP MERGE/DIVIDER LOGIC, LS SELECT LOGIC, SOLENOID ACTUATION TABLE
TABLE OF FAILURE MODES AND CAUSES
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 (WHEN PPC SHUTTLE VALVE IS CAUSE)
H-6 FINE CONTROL ABILITY IS POOR OR RESPONSE IS POOR
H-7 BOOM IS SLOW OR LACKS POWER
H-8 ARM IS SLOW OR LACKS POWER
H-9 BUCKET IS SLOW OR LACKS POWER
H-10 WORK EQUIPMENT (BOOM, ARM, BUCKET) DOES NOT MOVE (BUT TRAVEL AND SWING ARE NORMAL)
H-11 EXCESSIVE HYDRAULIC DRIFT (BOOM, ARM, BUCKET)
H-12 EXCESSIVE TIME LAG (ENGINE AT LOW IDLING)
H-13 OTHER EQUIPMENT MOVES WHEN SINGLE CIRCUIT IS RELIEVED
H-14 IN L/O, F/O MODES, WORK EQUIPMENT SPEED IS FASTER THAN SPECIFIED SPEED
H-15 DEFECTIVE ACTUATION OF MACHINE 2 STAGE PRESSURE RELIEF FUNCTION
H-16 IN COMPOUND OPERATIONS, WORK EQUIPMENT WITH LARGER LOAD IS SLOW
H-17 IN SWING + BOOM RAISE, BOOM RAISE IS SLOW
H-18 IN SWING + ARM, ARM IS SLOW
H-19 IN SWING + TRAVEL, TRAVEL SPEED DROPS EXCESSIVELY
H-20 TRAVEL DEVIATION
H-21 TRAVEL SPEED IS SLOW
H-22 STEERING DOES NOT TURN EASILY OR LACKS POWER
H-23 TRAVEL SPEED DOES NOT SWITCH OR IS FASTER THAN SPECIFIED SPEED
H-24 TRAVEL DOES NOT MOVE (ONE SIDE ONLY)
H-25 DOES NOT SWING
H-26 SWING ACCELERATION IS POOR OR SWING SPEED IS SLOW
H-27 EXCESSIVE OVERRUN WHEN STOPPING SWING
H-28 EXCESSIVE SHOCK WHEN STOPPING SWING (ONE DIRECTION ONLY)
H-29 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING
H-30 EXCESSIVE HYDRAULIC DRIFT OF SWING
H-31 SWING SPEED IS FASTER THAN SPECIFIED SWING SPEED
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 IS DISPLAYED, [E102] ERROR IN CLOCK DATA IS DISPLAYED
M-2 [E103] SHORT CIRCUIT IN BUZZER OUTPUT OR CONTACT OF 24V WIRING HARNESS WITH BUZZER DRIVE HARNESS IS DISPLAYED
M-3 [E104] AIR CLOGGING DETECTED IS DISPLAYED
M-4 [E106] DROP IN ENGINE OIL PRESSURE DETECTED IS DISPLAYED
M-5 [E108] ENGINE WATER TEMPERATURE 105 C DETECTED IS DISPLAYED
M-6 WHEN STARTING SWITCH IS TURNED ON, NONE OF THE LAMPS ON THE MONITOR PANEL LIGHT UP FOR 3 SECONDS
M-7 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL LAMPS ALL STAY LIT UP AND DO NOT GO OUT
M-8 WHEN STARTING SWITCH IS TURNED ON, ITEMS LIT UP ON MONITOR PANEL ARE DIFFERENT FROM ACTUAL MACHINE (MODEL)
M-9 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), BASIC CHECK ITEMS FLASHES
M-10 PREHEATING IS NOT BEING USED BUT (PREHEATING MOTOR) LIGHTS UP
M-11 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, BASIC CHECK ITEMS FLASH
M-12 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CAUTION ITEMS, EMERGENCY ITEMS FLASH (BATTERY, ENGINE OIL PRESSURE L
M-13 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, CAUTION ITEMS, EMERGENCY ITEMS FLASH (THEN THERE IS NO ABNORMAL
M-14 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), BUZZER DOES NOT SOUND FOR 1 SECOND CAUTION ITEM FLASHES BUT BUZZER D
M-15 NO ABNORMALITY IS DISPLAYED ON MONITOR BUT BUZZER SOUNDS
M-16 NIGHT LIGHTING ON MONITOR PANEL DOES NOT LIGHT UP (LIQUID CRYSTAL DISPLAY IS NORMAL)
M-17 COOLANT TEMPERATURE GAUGE DOES NOT RISE
M-18 COOLANT TEMPERATURE GAUGE DOES NOT GIVE ANY DISPLAY (NONE OF GAUGE LAMPS LIGHT UP DURING OPERATION)
M-19 FUEL LEVEL GAUGE ALWAYS DISPLAYS FULL
M-20 FUEL LEVEL GAUGE DOES NOT GIVE DISPLAY
M-21 SWING LOCK SWITCH IS TURNED ON (LOCK) BUT (SWING LOCK MONITOR) DOES NOT LIGHT UP
M-22 SWING PROLIX SWITCH IS TURNED ON (PROLIX), BUT (SWING LOCK MONITOR) DOES NOT FLASH
M-23 SERVICE METER DOES NOT ADVANCE WHILE ENGINE IS RUNNING
M-24 WHEN STARTING SWITCH IS AT OFF AND TIME SWITCH IS PRESSED, TIME AND SERVICE METER ARE NOT DISPLAYED
M-25 DEFECTIVE FUEL LEVEL SENSOR SYSTEM
M-26 DEFECTIVE COOLANT TEMPERATURE SENSOR SYSTEM
M-27 DEFECTIVE ENGINE OIL LEVEL SENSOR SYSTEM
M-28 DEFECTIVE COOLANT LEVEL SENSOR SYSTEM
M-29 DEFECTIVE HYDRAULIC OIL LEVEL SENSOR SYSTEM
M-30 WIPER DOES NOT WORK OR SWITCH IS NOT BEING USED BUT WIPER IS ACTUATED
M-31 WORKING LIGHT, PANEL LIGHTING DO NOT LIGHT UP, OR SWITCH IS NOT BEING USED BUT LIGHTS UP

30 DISASSEMBLY AND ASSEMBLY
METHOD OF USING MANUAL
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR ASSEMBLY
REMOVAL AND INSTALLATION
ALTERNATOR ASSEMBLY
REMOVAL AND INSTALLATION
NOZZLE HOLDER ASSEMBLY
REMOVAL AND INSTALLATION
THERMOSTAT ASSEMBLY
REMOVAL AND INSTALLATION
CYLINDER HEAD ASSEMBLY
REMOVAL
INSTALLATION
HYDRAULIC COOLER ASSEMBLY
REMOVAL
INSTALLATION
RADIATOR, HYDRAULIC COOLER ASSEMBLY
REMOVAL
INSTALLATION
ENGINE, MAIN PUMP ASSEMBLY
REMOVAL
INSTALLATION
DAMPER ASSEMBLY
REMOVAL AND INSTALLATION
FUEL TANK ASSEMBLY
REMOVAL AND INSTALLATION
CENTER SWIVEL JOINT ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY AND ASSEMBLY
FINAL DRIVE ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
TRAVEL MOTOR ASSEMBLY
DISASSEMBLY
ASSEMBLY
SPROCKET
REMOVAL AND INSTALLATION
SWING MOTOR ASSEMBLY
DISASSEMBLY
ASSEMBLY
REMOVAL AND INSTALLATION
SWING MACHINERY ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
REVOLVING FRAME ASSEMBLY
REMOVAL
INSTALLATION
SWING CIRCLE ASSEMBLY
REMOVAL AND INSTALLATION
IDLER, RECOIL SPRING ASSEMBLY
REMOVAL AND INSTALLATION
IDLER ASSEMBLY
DISASSEMBLY
ASSEMBLY
RECOIL SPRING ASSEMBLY
DISASSEMBLY
ASSEMBLY
TRACK ROLLER ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
CARRIER ROLLER ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
TRACK SHOE ASSEMBLY
REMOVAL AND INSTALLATION
HYDRAULIC TANK ASSEMBLY
REMOVAL
INSTALLATION
CONTROL PUMP ASSEMBLY
REMOVAL AND INSTALLATION
MAIN PUMP ASSEMBLY
REMOVAL
INSTALLATION
DISASSEMBLY
ASSEMBLY
MAIN PUMP INPUT SHAFT OIL SEAL
REMOVAL AND INSTALLATION
CONTROL VALVE ASSEMBLY
REMOVAL
INSTALLATION
DISASSEMBLY
ASSEMBLY
PUMP MERGE/DEVIDER VALVE ASSEMBLY
DISASSEMBLY AND ASSEMBLY
PRESSURE COMPENSATION VALVE ASSEMBLY
DISASSEMBLY AND ASSEMBLY
SERVO VALVE ASSEMBLY FOR FRONT PUMP
REMOVAL AND INSTALLATION
SERVO VALVE ASSEMBLY FOR REAR PUMP
REMOVAL AND INSTALLATION
LS-EPC SOLENOID VALVE ASSEMBLY
REMOVAL AND INSTALLATION
SOLENOID VALVE ASSEMBLY
REMOVAL AND INSTALLATION
WORK EQUIPMENT PPC VALVE ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
TRAVEL PPC VALVE ASSEMBLY
REMOVAL AND INSTALLATION
DISASSEMBLY
ASSEMBLY
PPC SHUTTLE VALVE ASSEMBLY
REMOVAL
INSTALLATION
DISASSEMBLY
ASSEMBLY
BOOM CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
ARM CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
BUCKET CYLINDER ASSEMBLY
REMOVAL
INSTALLATION
HYDRAULIC CYLINDER ASSEMBLY
DISASSEMBLY
ASSEMBLY
WORK EQUIPMENT ASSEMBLY
REMOVAL
INSTALLATION
BUCKET ASSEMBLY
REMOVAL
INSTALLATION
ARM ASSEMBLY
REMOVAL
INSTALLATION
BUCKET, ARM ASSEMBLY
REMOVAL
INSTALLATION
BOOM ASSEMBLY
REMOVAL
INSTALLATION
OPERATOR'S CAB ASSEMBLY
REMOVAL
INSTALLATION
COUNTERWEIGHT ASSEMBLY
REMOVAL AND INSTALLATION
GOVERNOR, PUMP CONTROLLER ASSEMBLY
REMOVAL AND INSTALLATION
MONITOR PANEL ASSEMBLY
REMOVAL AND INSTALLATION
CONTROL STAND CASE
REMOVAL
INSTALLATION

40 MAINTENANCE STANDARD
SWING MACHINERY
SWING CIRCLE
FINAL DRIVE
TRACK FRAME AND RECOIL SPRING
IDLER
CARRIER ROLLER
TRACK ROLLER
TRACK
HYDRAULIC PUMP
CONTROL PUMP AND RELIEF VALVE
CONTROL VALVE
SUCTION SAFETY VALVE
SWING MOTOR
TRAVEL MOTOR
WORK EQUIPMENT, SWING PPC VALVE
TRAVEL PPC VALVE
SERVICE PPC VALVE
PPC SHUTTLE VALVE, TRAVEL JUNCTION
EPC SOLENOID VALVE
CENTER SWIVEL JOINT
HYDRAULIC CYLINDER
WORK EQUIPMENT
DIMENSIONS OF WORK EQUIPMENT

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