Komatsu PC4000E-6 Shovel Operation and Maintenance Manual (GZEAM08225-1)
This PC4000E-6 shovel manual is what we lean on when the machine is working hard in big mines or heavy quarry faces, loading trucks all shift long. It helps you set a solid daily and weekly maintenance rhythm so the shovel stays reliable instead of surprising you mid-cut. If, for example, an operator reports slower cycle times and rough boom motions, this book walks you through the basic checks and operating practices to sort out whether it’s technique, adjustment, or something that needs a mechanic.
Applications & Use Cases
- Plan preventive maintenance so inspections, greasing, and filter changes are done before the shovel starts losing performance.
- Standardize operator routines for start-up, shutdown, and walk-around checks to catch leaks, cracks, or loose hardware early.
- Trace developing faults by comparing current behavior with the manual’s normal operating guidance before calling in major repairs.
- Verify adjustments after work is done, making sure functions run smoothly under load and within safe limits.
- Train new operators on correct handling so they don’t abuse the machine and shorten component life.
FAQ
Q: Can I keep a digital copy on a tablet in the cab?
A: Yes, as long as it’s readable and accessible offline, it’s handy for quick checks between passes.
Q: Is it worth printing sections of this manual?
A: Printing the daily checks and key maintenance pages is useful for posting in the service bay or on a clipboard.
Safety Note
Always follow the manual’s safety instructions before inspecting, adjusting, or servicing any part of the shovel.
📘 Show Index
Komatsu PC4000E-6 Shovel Index:
- 1 FOREWORD
- 1.1 BEFORE READING THIS MANUAL
- 1.2 DIRECTIONS OF THE MACHINE
- 1.3 SPECIFICATION AND SERIAL PLATE
- 1.3.1 PRODUCT IDENTIFICATION NUMBER
- 1.4 DIVISION OF THE BINDER
- 1.5 DESIGNATED USE OF THE SHOVEL
- 1.6 DELIVERY OF THE SHOVEL
- 1.6.1 SPARE PARTS
- 1.6.2 SERVICE
- 1.7 EXPLANATION OF ABBREVIATIONS
- 1.8 CONTENTS
- 2 SAFETY
- 2.1 SAFETY INFORMATION
- 2.2 OVERVIEW
- 2.2.1 NORMAL OPERATIONS
- 2.2.2 REGULAR MAINTENANCE
- 2.2.3 TROUBLESHOOTING, ADJUSTMENTS AND REPAIR
- 2.2.4 ADDITIONAL SAFETY PRECAUTIONS FOR ASSEMBLING, DISASSEMBLING AND TRANSPORTATION OF THE EXCAVATOR
- 2.3 SOUND PRESSURE LEVEL IN THE OPERATOR’S CAB.
- 2.4 GENERAL PRECAUTIONS COMMON TO OPERATION ON THE EXCAVATOR
- 2.4.1 UNDERSTANDING THE MACHINE
- 2.4.2 PRECAUTIONS BEFORE STARTING OPERATION ON THE EXCAVATOR
- 2.4.3 PREPARATIONS FOR SAFE OPERATION
- 2.4.4 FIRE PREVENTION
- 2.4.5 PRECAUTIONS WHEN GETTING ON OR OFF THE MACHINE
- 2.4.6 BURN PREVENTION
- 2.4.7 PRECAUTIONS WHEN CLEANING CAB GLASS
- 2.4.8 PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES
- 2.4.9 ELECTROMAGNETIC COMPATIBILITY (EMC)
- 2.4.10 PRECAUTIONS AT JOBSITE
- 2.4.11 STARTING motor
- 2.4.12 OPERATION
- 2.5 PRECAUTION FOR MAINTENANCE
- 2.5.1 GENERAL PRECAUTIONS
- 2.5.2 PRECAUTIONS FOR INSPECTION AND MAINTENANCE
- 2.5.3 PRECAUTIONS WITH HIGH PRESSURE FLUID
- 2.6 ADDITIONAL SAFETY INFORMATION FOR TROUBLESHOOTING AND ADJUSTMENTS
- 2.6.1 INSPECTION OF THE HYDRAULIC SYSTEM
- 2.6.2 TWO WORKERS ONLY WHEN THE MACHINE IS RUNNING DURING ADJUSTMENTS
- 2.6.3 AREAS OF POTENTIAL DANGER AROUND THE EXCAVATOR
- 2.7 SPECIAL SAFETY EQUIPMENT
- 2.7.1 FRONT GUARD PROTECTIVE STRUCTUR ’FOPS’ FOR OPERATOR’S CAB
- 2.7.2 OBJECT HANDLING
- 2.7.3 LIGHTING
- 2.7.4 WARNING BEACON
- 2.7.5 SAFETY HARNESS IN CONFORMITY WITH EN 361 (EUROPEAN STANDARD)
- 2.8 SAFETY WARNING SIGNS
- 2.8.1 LOCATION AND DESCRIPTION OF THE SIGNS
- 3 OPERATION
- 3.1 FOREWORD
- 3.2 CONSTRUCTION OF THE SHOVEL
- 3.2.1 OVERALL VIEW
- 3.2.2 SUPERSTRUCTURE
- 3.2.3 HYDRAULICALLY OPERATED ACCESS LADDER
- 3.2.4 EMERGENCY ESCAPE LADDER
- 3.2.5 EMERGENCY MOTOR SHUTDOWN FROM GROUND MAN AND OPERATOR WARNING SYSTEM
- 3.2.6 OPERATOR’S CAB WITH INTEGRATED FALLING OBJECT PROTECTIVE STRUCTURE (FOPS)
- 3.2.7 UNDERCARRIAGE
- 3.2.8 WORKING ATTACHMENT
- 3.3 OPERATOR’S CAB – CONTROLS
- 3.3.1 CONTROLS WITH BACKHOE ATTACHMENT
- 3.3.2 SAFETY CIRCUIT FOR CONTROLS
- 3.3.3 CONTROLS WITH BOTTOM DUMP BUCKET ATTACHMENT
- 3.3.4 SAFETY CIRCUIT FOR CONTROLS
- 3.3.5 AUTOMATIC FLOAT POSITION FOR BOOM AND STICK
- 3.3.6 OPERATORS CONSOLE, OVERVIEW
- 3.3.7 INTERFACE PANEL FOR DIAGNOSTICS
- 3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
- 3.4.1 INTRODUCTION
- 3.4.2 OPERATING THE ELECTRONIC MONITORING SYSTEM
- 3.4.3 AUTOMATIC DISPLAY OF MESSAGES
- 3.4.4 MENU CONTROL, SERVICE FUNCTIONS AND INPUTS/OUTPUTS
- 3.4.5 FAULT AND INFORMATION MESSAGE LIST
- 3.5 CAMERA SYSTEM WITH MONITOR
- 3.5.1 LOCATION OF MONITOR AND CONTROL UNIT
- 3.6 OPERATING THE HEATER, VENTILATION AND AIR CONDITIONING
- 3.6.1 Digital Display
- 3.6.2 Luminous Indication
- 3.6.3 Additional Air Conditioning/Heater Unit in Operator’s Cab
- 3.7 MACHINERY HOUSE
- 3.7.1 EMERGENCY MOTOR SHUTDOWN SWITCHES
- 3.7.2 MAINTENANCE SAFETY SWITCH AND BATTERY MAIN SWITCHES
- 3.7.3 CENTRAL CONTROL AND FILTER PANEL
- 3.8 MEDIUM VOLTAGE SWITCH CABINET IN CAB BASE
- 3.8.1 SWITCH BOARD (X2) IN CAB BASE
- 3.8.2 COMPONENTS IN THE MEDIUM VOLTAGE SWITCH CABINET
- 3.8.3 MONITOR AND CONTROL PANEL
- 3.8.4 PREHEATING SYSTEM
- 3.9 CHECKS BEFORE STARTING THE MAIN DRIVE MOTOR
- 3.9.1 WALK AROUND INSPECTION
- 3.9.2 TURNING ON THE POWER SUPPLY
- 3.9.3 Hydraulic System – Check Oil Level
- 3.9.4 Machinery House Doors
- 3.9.5 Operator’s Seat Adjustment
- 3.10 STARTING THE MAIN DRIVE MOTOR
- 3.10.1 STARTING PROCEDURE
- 3.11 MOVING THE SHOVEL
- 3.11.1 TRAVEL CONTROL WITH FOOT PEDALS
- 3.11.2 TRAVELLING INSTRUCTIONS
- 3.12 SLEWING AND BRAKING THE SUPERSTRUCTURE
- 3.12.1 SLEWING THE SUPERSTRUCTURE
- 3.12.2 BRAKING THE SUPERSTRUCTURE
- 3.12.3 SLEW PARKING BRAKE
- 3.13 WORKING WITH THE ATTACHMENT
- 3.13.1 MACHINES EQUIPPED WITH ”EURO” CONTROL SYSTEM
- 3.13.2 MACHINES EQUIPPED WITH ”KMG” CONTROL SYSTEM
- 3.13.3 BOTTOM DUMP BUCKET
- 3.13.4 DROP BALL OPERATION
- 3.13.5 COMBINED OPERATION CYCLES
- 3.14 WORKING INSTRUCTIONS
- 3.14.1 STABILITY OF THE SHOVEL
- 3.14.2 SHOVEL OPERATION
- 3.15 PARKING THE SHOVEL
- 3.15.0.1 CLEANING THE TRACK GROUPS
- 3.16 STOPPING THE MOTOR.
- 3.16.1 RELIEVE PRESSURE IN THE HYDRAULIC SYSTEM
- 3.17 GROUNDING PROCEDURE FOR THE HIGH VOLTAGE SYSTEM
- 3.17.1 ISOLATING THE POWER SUPPLY
- 3.17.2 PROCEDURE FOR ISOLTING THE POWER SUPPLY
- 3.17.3 PERFORMING GROUNDING PROCEDURES
- 3.18 OPERATION OF THE LUBRICATION SYSTEM
- 3.18.1 CENTRAL LUBRICATION SYSTEM -CLS- FOR SUPERSTRUCTURE AND ATTACHMENT
- 3.18.2 ADJUSTMENTS OF THE CENTRAL LUBRICATION SYSTEM
- 3.18.3 SWING CIRCLE PINION LUBRICATION SYSTEM ”SLS”
- 3.19 TRANSFER PUMP FOR HYDRAULIC OIL.
- 3.19.1 OPERATING THE TRANSFER PUMP
- 3.19.2 FUNCTIONS OF THE TRANSFER PUMP
- 3.20 FIRE DETECTION, ACTUATION AND SUPPRESSION SYSTEM.
- 3.20.1 CONTROL UNITS FOR THE FIRE DETECTION, ACTUATION AND SUPPRESSION SYSTEMS
- 3.20.2 REMOTE HIGH LEVEL ALARM *FIRE* LOCATED ON THE CAB
- 3.20.3 ACTUATION MODES OF THE FIRE SUPPRESSION SYSTEM
- 3.20.4 IN The CASE OF A FIRE
- 3.21 CENTRAL REFILLING SYSTEM.
- 3.21.1 SYSTEMS CONNECTED TO THE REFILLING SYSTEM
- 3.21.2 RECEIVER PANEL AND MONITOR BOX
- 3.21.3 Refilling Procedure:
- 3.21.4 REFILLABLE GREASE CONTAINERS OF THE CENTRAL LUBRICATION SYSTEM AND SWING CIRCLE PINION LUBRICATION SYSTEM
- 3.22 CABLE DRUM (IF SO EQUIPPED)
- 3.22.1 OPERATION OF THE CABLE DRUM
- 3.22.2 TRAVELLING INSTRUCTIONS
- 3.23 CABLE GUIDE (IF SO EQUIPPED)
- 3.23.1 LIFTING DEVICE FOR THE POWER CABLE
- 3.24 WORK ON THE LOADER ATTACHMENT
- 3.24.1 OBSERVE THE FOLLOWING INSTRUCTIONS
- 3.25 TRANSPORTATION AND LIFTING OF THE SHOVEL
- 3.25.1 DISASSEMBLING OF THE SHOVEL
- 3.25.2 TRANSPORTATION AND LIFTING
- 3.26 RETRIEVAL PROCEDURE
- 3.27 SHOVEL STORAGE
- 3.27.0.1 GENERAL
- 3.27.1 PREPARING FOR STORAGE
- 3.27.2 ONE MONTH REPETITIVE SERVICE PERIOD
- 3.27.3 SIX MONTH REPETITIVE SERVICE PERIOD
- 3.27.4 PREPARING FOR OPERATION
- 3.28 TROUBLE SHOOTING
- 3.28.0.1 GENERAL
- 3.28.0.2 motor
- 3.28.1 HYDRAULIC SYSTEM
- 3.28.2 FINAL DRIVES AND SWING GEAR
- 3.28.3 CRAWLER TRACKS
- 4 MAINTENANCE
- 4.1 FOREWORD
- 4.1.0.1 DEFINITIONS
- 4.1.0.2 GENERAL RECOMMENDATIONS
- 4.2 PRECAUTIONS FOR MAINTENANCE
- 4.3 FLUIDS AND LUBRICANTS
- 4.3.1 LUBRICANTS FOR OPERATION IN COLD AND ARCTIC CLIMATES
- 4.3.2 FLUIDS AND LUBRICANTS FOR MODERATE AND HOT CLIMATES
- 4.3.3 MAIN DRIVE ELECTRIC MOTOR – BEARING LUBRICATION
- 4.4 FILLING CAPACITIES
- 4.5 STANDARD TORQUE LIST
- 4.6 LUBRICATION AND MAINTENANCE SCHEDULE
- 4.6.1 INITIAL SERVICING
- 4.6.2 PERIODIC SERVICING INTERVALS
- 4.6.3 PERIODIC SERVICING SCHEDULEPERIODIC SERVICING SCHEDULE
- 4.6.4 MAINTENANCE SCHEDULES OF FILTER ELEMENTS AND OTHER COMPONENTS OF THE HYDRAULIC SYSTEM
- 4.6.5 MAINTENANCE OF THE MAIN DRIVE ELECTRIC MOTOR
- 4.7 SAFETY CRITICAL PARTS
- 4.7.1 REPLACEMENT OF HYDRAULIC HOSE LINES
- 4.7.2 INSPECTION OF HYDRAULIC HOSE LINES
- 4.7.3 PERIODIC REPLACEMENT OF FURTHER SAFETY CRITICAL PARTS
- 4.8 WHEN NECESSARY
- 4.8.1 SWING CIRCLE TOOTHING LUBRICATION
- 4.8.2 AUTOMATIC LUBRICATION SYSTEMS FILL GREASE BARRELS
- 4.8.3 TRACK ROLLERS AND GUIDE WHEELS – REPLACE FLOATING SEALS
- 4.9 EVERY 10 OPERATING HOURS OR DAILY
- 4.9.1 WALK-AROUND INSPECTION
- 4.9.2 CLEANING THE TRACK GROUPS
- 4.10 EVERY 50 OPERATING HOURS OR WEEKLY
- 4.10.1 SWING MACHINERY AND MOTOR ADAPTER HOUSINGS – CHECK OIL LEVELS
- 4.10.2 TRAVEL GEARS, BRAKE HOUSINGS AND MOTOR ADAPTER HOUSINGS MANUFACTURED BY “L&S” – CHECK OIL LEVELS
- 4.10.3 FINAL DRIVE HOUSINGS – CHECK OIL LEVEL
- 4.10.4 TRAVEL GEARS AND MOTOR ADAPTER HOUSINGS MANUFACTURED BY “ZOLLERN” – CHECK OIL LEVELS
- 4.10.5 FINAL DRIVE HOUSINGS – CHECK OIL LEVEL
- 4.10.6 PTO (PUMP DISTRIBUTOR GEAR) AND OIL RESERVOIR – CHECK OIL LEVEL
- 4.10.7 HYDRAULIC ACCESS LADDER – CHECK SAFETY SENSOR
- 4.10.8 HYDRAULIC OIL COOLERS – INSPECT AND CLEAN IF NECESSARY
- 4.11 EVERY 250 OPERATING HOURS OR MONTHLY
- 4.11.1 UNDERCARRIAGE PIN CONNECTIONS – LUBRICATE
- 4.11.2 HYDRAULIC OIL COOLER FAN BEARING
- 4.11.3 SIGNAL HORN COMPRESSOR – LUBRICATE
- 4.11.4 AUTOMATIC LUBRICATION SYSTEMS – CLEAN IN-LINE GREASE FILTER
- 4.11.5 CAB AIR CLEANER – CLEAN OR REPLACE FILTER ELEMENT
- 4.11.6 CAB AIR CLEANER – CLEAN OR REPLACE FILTER ELEMENT (Heavy duty version, special equipment)
- 4.11.7 WINDSHIELD WASHER RESERVOIR – CHECK FLUID LEVEL
- 4.11.8 AIR CONDITIONING FOR OPERATOR’S CAB – CHECK REFRIGERANT LEVEL
- 4.11.9 AIR CONDITIONING FOR ELECTRICAL SWITCH CABINETS – CHECK REFRIGERANT LEVEL
- 4.11.10 Air Conditioner Unit for Medium Voltage and High Voltage Switch Cabinets
- 4.12 EVERY 500 OPERATING HOURS OR MONTHLY
- 4.12.1 BATTERIES – CHECK FLUID LEVEL
- 4.12.2 PTO (PUMP DISTRIBUTOR GEAR) MAIN PUMP DRIVE SHAFT HOUSINGS – CHECK OIL LEVEL
- 4.12.3 FLEXIBLE DRIVE COUPLINGS – CHECK OIL LEVEL
- 4.12.4 CRAWLER TRACK – INSPECTION
- 4.12.5 GROUND CABLE OF OPERATOR’S CAB – CHECK FOR CORRECT CONNECTION
- 4.13 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
- 4.13.1 HIGH STRENGTH BOLT CONNECTIONS
- 4.13.2 HYDRAULIC SYSTEM – FILTER SERVICE
- 4.13.3 PTO (PUMP DISTRIBUTOR GEAR), SWING MACHINERY AND TRAVEL GEARS – OIL SAMPLE ANALYSIS
- 4.13.4 SIGNAL HORN COMPRESSOR – CLEAN AND LUBRICATE
- 4.13.5 HYDRAULIC TRACK TENSIONING SYSTEM – CHECK ACCUMULATORS
- 4.13.6 HYDRAULIC OIL COOLER – INSPECT AND LUBRICATE DOOR HINGES
- 4.13.7 MACHINERY HOUSE DOORS – INSPECT AND LUBRICATE DOOR HINGES
- 4.13.8 SLIP RING UNIT – LUBRICATE
- 4.14 EVERY 2000 OPERATING HOURS OR YEARLY
- 4.14.1 HYDRAULIC SYSTEM – CHANGE OIL, REPLACE SUCTION STRAINERS AND PULSATION DAMPER
- 4.14.2 BLEEDING THE HYDRAULIC SYSTEM
- 4.14.3 GEAR PUMP FOR PTO GEAR LUBRICATION
- 4.14.4 EMERGENCY ESCAPE LADDER – INSPECTION
- 4.15 EVERY 3000 OPERATING HOURS HOWEVER AT LEAST ONCE A YEAR
- 4.15.1 SWING GEARS AND MOTOR ADAPTER HOUSING – CHANGE OIL
- 4.15.2 TRAVEL GEARS, BRAKE AND MOTOR ADAPTER HOUSINGS MANUFACTURED BY “L&S”- CHANGE OIL
- 4.15.3 TRAVEL GEARS AND MOTOR ADAPTER HOUSINGS MANUFACTURED BY “ZOLLERN”- CHANGE OIL
- 4.15.4 FINAL DRIVE HOUSINGS – CHANGE OIL
- 4.15.5 PTO (PUMP DISTRIBUTOR GEAR) – CHANGE OIL
- 4.16 FIRE PREVENTION
- 4.17 WELD REPAIRS
- 4.17.1 GENERAL INFORMATION
- 4.17.2 WELD REPAIRS ON MAJOR COMPONENTS OF THE SHOVEL
- 4.17.3 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE UNDERCARRIAGE
- 4.17.4 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE LOADER ATTACHMENT
- 4.17.5 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE SUPERSTRUCTURE
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