Kobelco SK330-10 User manual

Book Code No. S2LC00054ZE11
APPLICABLE No.
READ, UNDERSTAND AND FOLLOW ALL SAFETY
PRECAUTIONS AND INSTRUCTIONS FOUND IN THIS
MANUAL BEFORE OPERATING THE MACHINE.
2022.06
Destination : ANZ
SK330-10
SK350LC-10
SK330-10
SK350LC-10
LC14-18001~
YC14-14001~
LC14020001~
YC14020001~
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

1
［CONTENTS］
IMPORTANT INFORMATION
PREFACE ................................................................................................................................................0-3
STORE OPERATION & MAINTENANCE MANUALS ON THE MACHINE ..................................................0-4
SAFETY INFORMATION IN MESSAGES OR LABELS IN THIS MANUAL AND ON THE MACHINE ...............0-5
SAFETY LABELS ..................................................................................................................................0-5
SUMMARY OF THE MACHINE..................................................................................................................0-7
QUALIFICATION FOR OPERATING THE MACHINE ...................................................................................0-8
CAB WITH ROPS (ROLL-OVER PROTECTIVE STRUCTURE)/FALLING OBJECTS PROTECTIVE
STRUCTURE.......................................................................................................................................0-9
ORDERING PARTS AND SERVICE .........................................................................................................0-10
WARRANTY ........................................................................................................................................... 0-11
IMPORTANT NOTIFICATION...................................................................................................................0-12
1. SAFETY PRECAUTIONS
1.1 SAFETY LABELS & DECALS ............................................................................................................1-3
1.1.1 ALWAYS MAKE SURE ALL OF THE SAFETY LABELS ARE LEGIBLE AND NOT
DAMAGED.......................................................................................................................................1-3
1.1.2 LOCATION OF SAFETY LABELS & DECALS ...............................................................................1-4
1.1.3 SAFETY LABELS........................................................................................................................1-7
1.2 PRE-START SAFETY......................................................................................................................1-14
1.2.1 OPERATION RULES.................................................................................................................1-14
1.2.2 PROTECTION TOOLS ..............................................................................................................1-15
1.2.3 ABNORMAL AND EMERGENCY CONDITION............................................................................ 1-16
1.2.4 POTENTIAL HAZARDS WHEN OPERATING .............................................................................1-17
1.2.5 FIRE PREVENTION..................................................................................................................1-18
1.2.6 GETTING ON AND OFF THE MACHINE ....................................................................................1-19
1.2.7 INSPECTION AND MAINTENANCE ON THE MACHINE .............................................................1-20
1.3 SECURE VISIBILITY.......................................................................................................................1-21
1.3.1 BE AWARE OF YOUR SURROUNDINGS...................................................................................1-21
1.4 PRECAUTIONS FOR OPERATION..................................................................................................1-22
1.4.1 STARTING ...............................................................................................................................1-22
1.4.2 TRAVELING .............................................................................................................................1-26
1.4.3 PRECAUTIONS OF WORK .......................................................................................................1-29
1.4.4 SAFETY CHECK ON THE PARKING MACHINE .........................................................................1-35
1.5 AT THE END OF EACH SHIFT.........................................................................................................1-36
1.6 PRECAUTIONS OF INSPECTION & MAINTENANCE .......................................................................1-37
1.6.1 PERIODIC INSPECTIONS ........................................................................................................1-37
1.6.2 BEFORE INSPECTION & MAINTENANCE .................................................................................1-37
1.6.3 DURING INSPECTION & MAINTENANCE .................................................................................1-38
1.6.4 PROHIBITED IN INSPECTION & MAINTENANCE ......................................................................1-43
1.6.5 AFTER INSPECTION & MAINTENANCE....................................................................................1-44
1.7 PRECAUTIONS FOR BATTERY ......................................................................................................1-45
1.7.1 HANDLING THE BATTERY .......................................................................................................1-45
1.8 HANDLING OF THE ACCUMULATOR OR GAS SPRING ..................................................................1-47
1.9 TOWING THE MACHINE.................................................................................................................1-48
1.9.1 TOWING METHOD OF THE MACHINE......................................................................................1-48
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

2
［CONTENTS］
2. MACHINE FAMILIARIZATION
2.1 BASIC COMPONENTS OF THE MACHINE ........................................................................................2-3
2.2 OPERATOR'S STATION NOMENCLATURE .......................................................................................2-5
2.3 GAUGE CLUSTER............................................................................................................................2-7
2.3.1 MULTI-DISPLAY .........................................................................................................................2-8
2.3.2 ENGINE COOLANT TEMPERATURE METER ..............................................................................2-8
2.3.3 FUEL LEVEL METER..................................................................................................................2-8
2.3.4 HOUR METER............................................................................................................................2-8
2.3.5 SCREEN CHANGE SWITCH .......................................................................................................2-9
2.3.6 BUZZER STOP SWITCH...........................................................................................................2-10
2.3.7 WORK MODE SELECT SWITCH ............................................................................................... 2-11
2.3.8 WASHER SWITCH ...................................................................................................................2-12
2.3.9 WIPER SWITCH .......................................................................................................................2-12
2.3.10 TRAVEL SPEED SELECT SWITCH .........................................................................................2-13
2.3.11 AUTO ACCELERATION SWITCH.............................................................................................2-14
2.3.12 ATTACHMENT MODE SELECT SWITCH .................................................................................2-15
2.3.13 MENU SWITCH ......................................................................................................................2-16
2.3.14 USER MENU SETTING...........................................................................................................2-17
2.3.15 DISPLAY FOR MAINTENANCE ...............................................................................................2-28
2.3.16 WARNING DISPLAY SCREEN.................................................................................................2-29
2.4 HANDLING OF SWITCHES AND METERS ......................................................................................2-32
2.4.1 STARTER SWITCH...................................................................................................................2-32
2.4.2 ENGINE THROTTLE.................................................................................................................2-32
2.4.3 WORKING LIGHT (BOOM AND DECK)......................................................................................2-33
2.4.4 HEAVY LIFT SWITCH ...............................................................................................................2-33
2.4.5 PRESSURE RELEASE SWITCH ...............................................................................................2-34
2.4.6 QUICK HITCH OPERATION SWITCH ........................................................................................2-34
2.4.7 CAP (OPTION SWITCH) ...........................................................................................................2-35
2.4.8 HORN SWITCH ........................................................................................................................2-35
2.4.9 POWER BOOST SWITCH.........................................................................................................2-35
2.4.10 ENGINE THROTTLE FOR REDUNDANT MODE ......................................................................2-36
2.4.11 SWING PARKING BRAKE RELEASE SWITCH ......................................................................... 2-37
2.4.12 KPSS RELEASE SWITCH .......................................................................................................2-37
2.4.13 ENGINE STOP SWITCH .........................................................................................................2-38
2.4.14 12 V POWER SUPPLY ............................................................................................................2-38
2.4.15 USB PORT/EXTERNAL INPUT TERMINAL (AUX) .................................................................... 2-39
2.4.16 Level Gauge ...........................................................................................................................2-39
2.5 HANDLING OF LEVERS AND PEDALS............................................................................................2-40
2.5.1 LOCATION OF LEVERS AND PEDALS ......................................................................................2-40
2.5.2 CONTROL LOCK LEVER ..........................................................................................................2-41
2.5.3 OPERATOR CONTROL LEVERS ..............................................................................................2-42
2.5.4 TRAVEL LEVER & PEDAL.........................................................................................................2-43
2.6 HANDLING OF FUSE & RELAY BOX ...............................................................................................2-44
2.6.1 ABOUT FUSE & RELAY BOX ....................................................................................................2-44
2.6.2 REPLACING FUSES.................................................................................................................2-44
2.6.3 FUSE CAPACITY AND CIRCUIT NAME .....................................................................................2-45
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

3
［CONTENTS］
2.7 HANDLING OF FUSIBLE LINK (FOR STARTER) ..............................................................................2-46
2.7.1 FUSIBLE LINK INSPECTION/REPLACEMENT........................................................................... 2-47
2.8 CONTROLLER ...............................................................................................................................2-48
2.9 HANDLING OF RADIO TUNER........................................................................................................2-49
2.9.1 NAME OF EACH PART .............................................................................................................2-49
2.9.2 ON-AIR (NORMAL CONDITION) ...............................................................................................2-50
2.9.3 SWITCHING SOURCE..............................................................................................................2-51
2.9.4 FM/AM .....................................................................................................................................2-52
2.9.5 BLUETOOTH AUDIO FUNCTION, AND EXTERNAL INPUT TERMINAL ......................................2-57
2.9.6 PAIRING (REGISTRATION OF DEVICES)..................................................................................2-58
2.9.7 TELEPHONE FUNCTION..........................................................................................................2-60
2.9.8 FILE PLAYING FUNCTION........................................................................................................2-62
2.9.9 VOLUME CONTROL.................................................................................................................2-63
2.9.10 SOUND ADJUSTMENT...........................................................................................................2-64
2.9.11 CLOCK ADJUSTMENT............................................................................................................2-68
2.10 AIR CONDITIONER.......................................................................................................................2-69
2.10.1 GRILLE (AIR OUTLET)............................................................................................................2-69
2.10.2 AIR CONDITIONER CONTROL PANEL....................................................................................2-70
2.10.3 AIR CONDITIONER OPERATION PANEL.................................................................................2-71
2.10.4 HOW TO USE AIR CONDITIONER ..........................................................................................2-74
2.10.5 SELF-DIAGNOSIS FUNCTION IN DISPLAY MONITOR.............................................................2-76
2.10.6 HANDLING AT IN-SEASON/OFF-SEASON ..............................................................................2-77
2.11 HANDLING OF SEAT BELT............................................................................................................2-78
2.11.1 HOW TO FASTEN SEAT BELT.................................................................................................2-78
2.11.2 HOW TO UNFASTEN SEAT BELT............................................................................................2-78
2.12 HANDLING OF OPERATOR'S SEAT ..............................................................................................2-79
2.12.1 HEIGHT AND TILT ADJUSTMENT ...........................................................................................2-79
2.12.2 RECLINING ADJUSTMENT.....................................................................................................2-79
2.12.3 FRONT/REAR SEAT ADJUSTMENT ........................................................................................2-79
2.12.4 FORWARD AND REARWARD ADJUSTMENT OF CONTROL STAND .......................................2-80
2.12.5 ARM REST ADJUSTMENT ......................................................................................................2-80
2.12.6 HEAD REST ADJUSTMENT ....................................................................................................2-80
2.12.7 SUSPENSION ADJUSTMENT .................................................................................................2-80
2.13 HANDLING PARTS INSIDE CAB....................................................................................................2-81
2.13.1 CAB DOOR LOCK...................................................................................................................2-81
2.13.2 OPENING DOOR FROM INSIDE OF CAB ................................................................................2-81
2.13.3 OPENING/CLOSING FRONT WINDOW (UPPER).....................................................................2-82
2.13.4 RETRACTING FRONT WINDOW (LOWER) .............................................................................2-83
2.13.5 CAB ROOM LAMP ..................................................................................................................2-83
2.14 EMERGENCY ESCAPE FROM OPERATOR'S STATION.................................................................2-84
2.15 OTHER ACCESSORIES................................................................................................................2-85
2.15.1 TOOL BOX .............................................................................................................................2-85
2.15.2 GREASE GUN HOLDER .........................................................................................................2-85
2.15.3 CUP HOLDER ........................................................................................................................2-85
2.15.4 GUARD/SIDE DOOR (WITH LOCK) .........................................................................................2-86
2.16 BATTERY POWER-OFF SWITCH..................................................................................................2-88
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

4
［CONTENTS］
3. MACHINE OPERATION
3.1 EVERYDAY CHECK-UP ....................................................................................................................3-3
3.2 CHECK BEFORE STARTING ENGINE...............................................................................................3-4
3.2.1 CHECKING COOLANT LEVEL AND REFILLING ..........................................................................3-4
3.2.2 CHECKING ENGINE OIL LEVEL OF ENGINE OIL PAN AND REFILLING.......................................3-5
3.2.3 CHECKING FUEL LEVEL AND REFUELING ................................................................................3-6
3.2.4 DRAINING FUEL PRE-FILTER ....................................................................................................3-7
3.2.5 CHECKING OIL LEVEL OF HYDRAULIC OIL TANK ......................................................................3-8
3.2.6 CHECKING FAN BELT AND AIR CONDITIONING COMPRESSOR BELT.......................................3-9
3.2.7 ADJUSTMENT OF OPERATOR'S SEAT.....................................................................................3-10
3.2.8 ADJUSTMENT OF MIRRORS.................................................................................................... 3-11
3.2.9 CHECKING MULTI-DISPLAY.....................................................................................................3-13
3.2.10 CHECKING WORKING LIGHT.................................................................................................3-14
3.2.11 CHECKING OF AIR CLEANER INLET ......................................................................................3-14
3.3 STARTING ENGINE........................................................................................................................3-15
3.3.1 START-UP UNDER NORMAL TEMPERATURE CONDITIONS.....................................................3-15
3.3.2 START UP IN COLD CONDITIONS............................................................................................3-16
3.3.3 USING JUMPER CABLES.........................................................................................................3-17
3.4 STOPPING MACHINE ENGINE .......................................................................................................3-19
3.5 CHECK AFTER STARTING ENGINE................................................................................................3-20
3.5.1 CHECK OF PILOT CONTROL SHUT-OFF LEVER ......................................................................3-20
3.5.2 CHECK OF ENGINE AND MULTI-DISPLAY................................................................................3-21
3.6 WARMING-UP ................................................................................................................................3-22
3.6.1 ENGINE WARMING-UP ............................................................................................................3-22
3.6.2 WARMING-UP HYDRAULIC OIL................................................................................................3-23
3.7 AUTO IDLING STOP FUNCTION .....................................................................................................3-24
3.7.1 RESTART AFTER AUTO IDLE STOP .........................................................................................3-24
3.8 SELECTION OF WORK MODE........................................................................................................3-25
3.9 SWITCHING ATTACHMENT MODE .................................................................................................3-26
3.10 MACHINE OPERATION.................................................................................................................3-27
3.10.1 PRECAUTIONS OF MACHINE OPERATION ............................................................................3-27
3.10.2 TRAVEL PROCEDURES .........................................................................................................3-28
3.10.3 CHANGING TRAVEL SPEED (1ST AND 2ND) ..........................................................................3-30
3.10.4 MACHINE OPERATION IN WATER OR ON SOFT GROUND.....................................................3-31
3.10.5 GETTING OUT OF SOFT GROUND.........................................................................................3-32
3.10.6 SWING AND ATTACHMENT OPERATIONS .............................................................................3-33
3.11 WORK PROCEDURES OF MACHINE ............................................................................................3-36
3.11.1 DIGGING WORK.....................................................................................................................3-36
3.11.2 LOADING WORK ....................................................................................................................3-36
3.12 ALWAYS PARK MACHINE PROPERLY ..........................................................................................3-37
3.12.1 PARKING MACHINE ON SLOPE .............................................................................................3-37
3.13 INSPECTION AND CHECK AFTER OPERATION............................................................................3-38
3.14 MACHINE OPERATION IN ADVERSE CONDITIONS ......................................................................3-39
3.14.1 OPERATION IN COLD CONDITION.........................................................................................3-39
3.14.2 OPERATION AT SEASHORE...................................................................................................3-40
3.14.3 OPERATION IN SANDY AND DUSTY AREAS...........................................................................3-40
3.15 PRECAUTIONS FOR LONG-TERM STORAGE ..............................................................................3-41
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

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［CONTENTS］
3.15.1 WASHING MACHINE ..............................................................................................................3-41
3.15.2 REFILLING OIL/GREASING ....................................................................................................3-41
3.15.3 BATTERY ...............................................................................................................................3-41
3.15.4 COOLANT ..............................................................................................................................3-41
3.15.5 PREVENTION OF DUST AND MOISTURE ............................................................................... 3-42
3.15.6 PERIODICAL LUBRICATING OPERATION (DURING STORAGE) .............................................3-42
3.15.7 TREATMENT AFTER LONG-TERM STORAGE.........................................................................3-42
4. INSPECTION AND MAINTENANCE
4.1 GENERAL ........................................................................................................................................4-3
4.2 INSPECTING AND MAINTAINING MACHINE .....................................................................................4-4
4.2.1 PERIODIC INSPECTION AND MAINTENANCE............................................................................4-4
4.2.2 PRECAUTIONS OF INSPECTION AND MAINTENANCE ..............................................................4-4
4.3 LUBRICANT, FUEL & COOLANT SPECIFICATIONS...........................................................................4-5
4.4 ABOUT USE OF BIO-OIL (BIODEGRADABLE HYDRAULIC OIL).........................................................4-7
4.4.1 GREASE AND OIL FOR USE ......................................................................................................4-7
4.4.2 PRECAUTIONS FOR BIO-OIL .....................................................................................................4-7
4.4.3 REPLACEMENT INTERVAL OF BIO-OIL......................................................................................4-7
4.4.4 FLUSHING PROCEDURES OF BIO-OIL ......................................................................................4-7
4.5 MAINTENANCE PARTS ....................................................................................................................4-8
4.6 TIGHTENING TORQUES FOR BOLTS & NUTS (SPECIFIC POSITIONS) ............................................4-9
4.7 TIGHTENING TORQUES FOR CAPSCREWS AND NUTS ................................................................ 4-11
4.8 TIGHTENING TORQUES FOR JOINTS & HYDRAULIC HOSES ........................................................4-13
4.9 INSPECTION AND MAINTENANCE CHART ....................................................................................4-15
4.10 MAINTENANCE WHEN REQUIRED...............................................................................................4-20
4.10.1 CLEANING RADIATOR, OIL COOLER CORE AND SCREEN .................................................... 4-20
4.10.2 CHECKING AND REPLACING WIPER BLADES.......................................................................4-21
4.10.3 WASHER FLUID INSPECTION ................................................................................................4-22
4.10.4 REPLACING BUCKET.............................................................................................................4-23
4.10.5 REPLACING TOOTH POINT AND SIDE CUTTER.....................................................................4-25
4.10.6 INSPECTION AND ADJUSTMENT OF BUCKET GAP ADJUSTMENT MECHANISM...................4-28
4.10.7 BLEEDING AIR FROM FUEL PIPING.......................................................................................4-29
4.10.8 RELEASING INTERNAL PRESSURE IN HYDRAULIC SYSTEM................................................4-30
4.10.9 GREASING ATTACHMENT/EQUIPMENT.................................................................................4-31
4.10.10 GREASING ATTACHMENT/EQUIPMENT (2 POSITION BOOM) ..............................................4-32
4.11 8 HOUR (DAILY) INSPECTION & MAINTENANCE PROCEDURES..................................................4-33
4.11.1 GREASING ATTACHMENT......................................................................................................4-33
4.12 50 HOUR INSPECTION & MAINTENANCE PROCEDURES ............................................................4-35
4.12.1 INSPECTING AND MAINTAINING BATTERY............................................................................4-35
4.12.2 DRAINING WATER AND SEDIMENT IN FUEL TANK.................................................................4-38
4.12.3 ADJUSTING CRAWLER TENSION ..........................................................................................4-39
4.13 120 HOUR INSPECTION & MAINTENANCE PROCEDURES ..........................................................4-41
4.13.1 CHECKING OIL LEVEL OF SWING REDUCTION UNIT ............................................................4-41
4.13.2 CHECKING OIL LEVEL OF TRAVEL REDUCTION UNIT...........................................................4-42
4.13.3 CHECKING INTAKE SYSTEM RUBBER HOSE ........................................................................4-43
4.14 250 HOUR (3-MONTH) INSPECTION & MAINTENANCE PROCEDURES ........................................4-45
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

6
［CONTENTS］
4.14.1 ADJUSTING FAN BELT AND AIR CONDITIONING COMPRESSOR BELT..................................4-45
4.14.2 CHECKING RADIATOR HOSES ..............................................................................................4-49
4.14.3 CLEANING OR REPLACING AIR CONDITIONER FILTERS ......................................................4-51
4.14.4 INSPECTING, CLEANING, OR REPLACING AIR CLEANER ELEMENT.....................................4-53
4.14.5 CLEANING OR REPLACING RADIATOR CAP..........................................................................4-55
4.15 500 HOUR (6-MONTH) INSPECTION & MAINTENANCE PROCEDURES ........................................4-56
4.15.1 REPLACING ENGINE OIL AND ENGINE OIL FILTER ...............................................................4-56
4.15.2 REPLACING FUEL PRE-FILTER .............................................................................................4-58
4.15.3 REPLACING FUEL FILTER .....................................................................................................4-60
4.15.4 GREASING SWING BEARING.................................................................................................4-62
4.15.5 CHECKING SWING BEARING MOUNTING BOLT FOR LOOSENESS .......................................4-62
4.15.6 CLEANING FUEL TANK CAP AND STRAINER .........................................................................4-63
4.15.7 LUBRICATING PUSH ROD OF CONTROL LEVER ...................................................................4-64
4.15.8 CHECKING AIR CONDITIONER REFRIGERANT .....................................................................4-65
4.16 1000 HOUR (12-MONTH) INSPECTION & MAINTENANCE PROCEDURES ....................................4-67
4.16.1 REPLACING RETURN FILTER ................................................................................................4-67
4.16.2 REPLACING AIR BREATHER ELEMENT .................................................................................4-69
4.16.3 CHECKING ENGINE MOUNTING BRACKET FOR TIGHTENING CONDITION...........................4-70
4.16.4 CHECKING BATTERY VOLTAGE.............................................................................................4-70
4.17 2000 HOUR INSPECTION & MAINTENANCE PROCEDURES ........................................................4-71
4.17.1 REPLACING COOLANT..........................................................................................................4-71
4.17.2 REPLACING OIL IN SWING REDUCTION UNIT .......................................................................4-73
4.17.3 REPLACING OIL IN TRAVEL REDUCTION UNITS ...................................................................4-74
4.17.4 CLEANING SUCTION STRAINER............................................................................................4-75
4.17.5 GREASING SWING REDUCTION UNIT ................................................................................... 4-77
4.17.6 CHECKING GREASE IN SWING GREASE BATH .....................................................................4-78
4.17.7 CLEANING PILOT LINE FILTER ..............................................................................................4-79
4.18 5000 HOUR INSPECTION & MAINTENANCE PROCEDURES ........................................................4-80
4.18.1 REPLACING HYDRAULIC OIL.................................................................................................4-80
5. TRANSPORTATION
5.1 TRANSPORTATION..........................................................................................................................5-3
5.1.1 STRICTLY OBSERVE TRANSPORTATION RELATED REGULATIONS..........................................5-3
5.2 LOADING/UNLOADING THE MACHINE.............................................................................................5-5
5.2.1 LOADING ...................................................................................................................................5-6
5.2.2 FIXING THE MACHINE ...............................................................................................................5-8
5.2.3 UNLOADING ............................................................................................................................5-10
5.3 MACHINE LIFTING ......................................................................................................................... 5-11
5.3.1 LIFTING PROCEDURES...........................................................................................................5-13
5.4 INSTALLING AND REMOVING MIRROR..........................................................................................5-14
6. SPECIFICATION
6.1 GENERAL SPECIFICATIONS............................................................................................................6-3
6.1.1 SK330-10, SK350LC-10 ..............................................................................................................6-3
6.2 SHOE TYPES AND USES .................................................................................................................6-5
6.2.1 SK330-10 ...................................................................................................................................6-5
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

7
［CONTENTS］
6.2.2 SK350LC-10...............................................................................................................................6-6
6.2.3 SK350LC-10(HIGH & WIDE)........................................................................................................6-6
6.3 WORKING RANGES.........................................................................................................................6-7
6.3.1 BACKHOE ATTACHMENT...........................................................................................................6-7
6.4 ATTACHMENT TYPE AND COMBINATION ........................................................................................6-9
6.4.1 FRONT ATTACHMENT VARIATION .............................................................................................6-9
7. MACHINE OPERATION MANAGEMENT SYSTEM
7.1 MACHINE OPERATION MANAGEMENT SYSTEM .............................................................................7-3
7.2 REMOTE DOWNLOAD SYSTEM.......................................................................................................7-4
8. OPTIONAL EQUIPMENT
8.1 OPERATION OF HYDRAULIC NIBBLER (CRUSHER) AND BREAKER................................................8-3
8.1.1 SELECTION OF NIBBLER (CRUSHER) AND BREAKER ..............................................................8-3
8.1.2 INSTALLATION OF NIBBLER (CRUSHER) OR BREAKER ............................................................8-3
8.1.3 PRECAUTIONS IN USE OF BREAKER........................................................................................8-3
8.1.4 PRECAUTIONS IN USE OF NIBBLER (CRUSHER) ......................................................................8-8
8.2 SELECTION OF ATTACHMENT MODE AND SELECTOR VALVE ......................................................8-13
8.2.1 SELECTION OF ATTACHMENT MODE......................................................................................8-13
8.2.2 SWITCHING SELECTOR VALVE ...............................................................................................8-15
8.3 SWITCHING STOP VALVE ..............................................................................................................8-16
8.4 FLOW RATE ADJUSTMENT............................................................................................................8-17
8.5 OPERATION...................................................................................................................................8-18
8.5.1 PEDAL LOCK DEVICE..............................................................................................................8-18
8.5.2 PEDAL OPERATIONS FOR HYDRAULIC BREAKER AND NIBBLER (CRUSHER) OPENING/
CLOSING ......................................................................................................................................8-19
8.5.3 PEDAL OPERATION FOR NIBBLER (CRUSHER) ROTATION.....................................................8-20
8.6 CONTROL OF PROPORTIONAL HAND CONTROL EXTRA, NIBBLER (CRUSHER),
BREAKER .........................................................................................................................................8-21
8.6.1 EXTRA HAND CONTROL .........................................................................................................8-22
8.6.2 HORN SWITCH ........................................................................................................................8-22
8.6.3 NIBBLER (CRUSHER) OPERATION..........................................................................................8-22
8.6.4 BREAKER OPERATION............................................................................................................8-23
8.6.5 POWER BOOST SWITCH.........................................................................................................8-23
8.7 CONTROL OF PROPORTIONAL HAND CONTROL NIBBLER (CRUSHER), BREAKER .....................8-24
8.7.1 HORN SWITCH ........................................................................................................................8-25
8.7.2 NIBBLER (CRUSHER) OPERATION..........................................................................................8-25
8.7.3 BREAKER OPERATION............................................................................................................8-26
8.7.4 POWER BOOST SWITCH.........................................................................................................8-26
8.8 PERIODIC INSPECTION AND MAINTENANCE OF NIBBLER (CRUSHER) AND BREAKER ...............8-27
8.8.1 PERIODIC INSPECTION AND MAINTENANCE CHART OF NIBBLER (CRUSHER) AND
BREAKER .....................................................................................................................................8-27
8.8.2 REINFORCEMENT OF ATTACHMENT.......................................................................................8-27
8.9 PRECAUTIONS FROM BREAKER MANUFACTURERS....................................................................8-28
8.10 MULTI-CONTROL VALVE ..............................................................................................................8-29
8.11 QUICK HITCH...............................................................................................................................8-31
8.11.1 PROHIBITED WORKS.............................................................................................................8-31
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

8
［CONTENTS］
8.11.2 PRECAUTIONS FOR USE.......................................................................................................8-32
8.11.3 REMOVING FRONT ATTACHMENT .........................................................................................8-33
8.11.4 INSTALLING FRONT ATTACHMENT........................................................................................8-34
8.11.5 MANUAL SWITCHING OF PRESSURE REDUCING VALVE FOR QUICK HITCH ........................8-35
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［IMPORTANT INFORMATION］
IMPORTANT INFORMATION
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［IMPORTANT INFORMATION］
Copyright©2022 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2LC00054ZE11] [0609CsCshWbYs]

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［IMPORTANT INFORMATION］
PREFACE
• Read, understand and follow the safety messages and instructions in this manual and the safety messages on
the machine. If these safety messages are not followed, serious injury or death could occur.
• Always be aware of your surroundings when operating this machine and understand the capabilities of this
machine and the attachments.
• Always use caution to safely operate this machine.
Use of this product and this manual
• Improper operation, lubrication, maintenance or repair of this machine may cause SERIOUS INJURY, DEATH or
damage to the machine.
• Do not operate this machine for the first time or perform any inspection, lubrication, maintenance or repair on this
machine, until you have carefully read and understand the operation, inspection, lubrication, maintenance, and
repair information in this manual.
• For machines equipped with specialized attachments, read the section related to the specialized attachments in
this manual and any additional manuals for the specialized attachment.
• If this manual is lost, damaged or unreadable, order a replacement from your KOBELCO authorized dealer.
• This manual is a part of this machine and should be transferred with the machine to new users or owners.
• Always use genuine KOBELCO parts. Do not use aftermarket or non-KOBELCO parts on your machine.
• Manufacturers cannot anticipate every possible scenario and potential hazard that may arise during operation,
inspection and maintenance activities. Therefore, the warnings in this manual and on the product may not
communicate all of the possible safety precautions for your situation. When performing any operation, inspection
and maintenance activities that are not contained in this manual, proceed at your own risk and do not perform
any unsafe acts. You should also ensure the machine will not be damaged or create an unsafe condition by your
actions. Always follow the safety procedures in this manual and for your worksite. NEVER perform any task or
operation prohibited by this manual.
• If a tool, procedure, work method or operating technique not specifically recommended by KOBELCO is used,
you must evaluate that it is safe for yourself and others to proceed. You should also ensure the machine will not
be damaged or create an unsafe condition by the operation, lubrication, maintenance and/or repair procedures
you choose. NEVER perform any task or operation prohibited by this manual.
• The information, specification, and illustrations in this manual are based on information available at the time it
was written. KOBELCO may change the specifications, torques, pressures, measurements, adjustments,
illustrations, and other content at anytime without any obligation to notify the users/owners of these changes.
Your KOBELCO authorized dealer will have the most current information available.
• Should there be questions, errors, omissions or other issues that need to be communicated to the manufacturer,
contact your KOBELCO authorized dealer.
• KOBELCO provides machines produced in accordance with regulations and standards of a country in which the
machine is sold to the first owner. If you have a machine purchased in a foreign country or from a person or
company in another country, your machine may lack safety devices or machine components or not meet a safety
standard required in your country. Please contact your KOBELCO authorized dealer to ask whether your
machine's specifications meet the regulations and the standards in your country.
• KOBELCO DOES NOT warrant or provide any support for any machine exported to other countries.
The copyright of this manual belongs to KOBELCO CONSTRUCTION MACHINERY CO., LTD. Copy, reproduction,
distribution, and delivery (including these actions on the Internet) of all or part of this manual are prohibited without permission
of KOBELCO CONSTRUCTION MACHINERY CO., LTD.
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［IMPORTANT INFORMATION］
STORE OPERATION & MAINTENANCE MANUALS ON THE MACHINE
Always store all manuals for this machine and any
attachments, including this manual and the related
manuals, in the pocket located at the rear side of the
operator's seat. Check the manuals are in this location
as a part of your pre-start Inspection. If the manuals are
not found during your pre-start inspection, inform your
supervisor and order replacement manuals from your
KOBELCO authorized dealer.
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0-5
［IMPORTANT INFORMATION］
SAFETY INFORMATION IN MESSAGES OR LABELS IN THIS
MANUAL AND ON THE MACHINE
Many accidents are the result of not following basic safety precautions and could have been avoided by
recognizing potentially hazardous situations.
Proper risk assessment can prevent many accidents from occurring. During operation, always pay attention to the
potential hazards near the machine and at your worksite.
• Improper operation, inspection, maintenance and repair could cause serious injury, death or property damage.
Before operating, inspecting and maintaining this machine, carefully read and understand this manual, the
related manuals, and any attachment manuals that may be provided to you.
• Only allow trained and experienced personnel to operate, to inspect and to maintain this machine. These
individuals must also comply with all applicable employer, industry, and governmental rules, standards, and
regulations.
Many safety messages in this manual or on the labels on this machine contain signal words. Signal words are used
to identify safety messages and property damage messages and designate a level of hazard seriousness. Many of
these safety messages may also contain avoidance information.
This safety alert symbol identifies important safety messages in this manual. When you
see this symbol, be alert, your safety is involved, carefully read the message that follows,
and inform other operators.
The three signal words are DANGER, WARNING and CAUTION. Each alerts the viewer to the existence and
relative seriousness of a hazard. They are reserved for personal injury hazards.
Safety signs identified by DANGER shall be used sparingly and only for those situations presenting the most
serious hazards. Hazards identified by WARNING present a lesser degree of risk of injury or death than those
identified by DANGER.
DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or
serious injury.
WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in
death or serious injury.
CAUTION indicates a hazard with a low level of risk which, if not avoided, could result in minor or
moderate injury.
Other than the above-mentioned signal words, the following words identify important information which must be
kept for the protection of the machine and may be helpful for the operator.
Notice indicates information considered important, but not hazard related .
(e.g., messages related to property damage)
Note indicates information that may be helpful for the operator.
SAFETY LABELS
Safety labels are affixed to machine to alert the operator and surrounding personnel of hazardous situations during
operation, inspection or maintenance.
There are two types of "safety labels" on this machine. One is "SAFETY LABEL INCLUDING SIGNAL WORDS"
and the other is "PICTORIAL ONLY SAFETY LABELS".
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［IMPORTANT INFORMATION］
Example of the safety label including signal words
Example of a pictorial only safety label
ZL11M02708
The pictorial only safety label is used to alert the
operator and surrounding personnel of potentially
hazardous situations.
For pictorial only safety label, the hazard pictorial is in
the upper or left box, and the avoidance information is in
the lower or right box.
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［IMPORTANT INFORMATION］
SUMMARY OF THE MACHINE
APPLICABLE WORKS
Use this machine in the following applications:
• Digging
• Trenching
• Loading
• Leveling
• Demolishing
For details of work procedures, please refer to the chapters of MACHINE OPERATION and OPTIONAL
EQUIPMENT.
FRONT & REAR/RIGHT & LEFT OF THE MACHINE
Operator’s
seat
Front Track idler wheel
Right-hand
side
Travel moter
Sprockets
Left-hand
side
Rear
This manual refers to the front, rear, right & left of this
machine as seen when sitting in the operator's seat with
the machine in the normal travel position. The normal
travel position is when the idler wheels are positioned at
the front under the cab and the drive sprockets are
positioned at the rear.
BREAK-IN OPERATION
Prior to shipment, this machine was inspected and adjusted by KOBELCO. Future performance and service life of
this machine depends on how the machine is operated during the break-in period.
Hour Meter Load Status
Less than 10 hours About 60%
Less than 100 hours About 80%
100 hours and more Full load
During the break-in period
• Always sufficiently warm-up the engine and the hydraulic oil.
• Do not operate with loads that exceed the recommended load status for each phase shown in the table or
operate at high speeds.
• Do not perform a sudden start, sudden acceleration, or other sudden changes in engine speed.
• Avoid unnecessary sudden stops or sudden changes in driving direction.
• Do not operate the engine at high RPMs for extended periods of time.
Operating with heavy loads during the first 100 hours of operation may significantly affect the performance and the
life of the machine. Use extreme caution if operating with heavy loads during the break-in period.
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［IMPORTANT INFORMATION］
QUALIFICATION FOR OPERATING THE MACHINE
Where a license or special qualification is required to operate a hydraulic excavator by law, the operator of this
machine is required to have a valid license or qualification.
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［IMPORTANT INFORMATION］
CAB WITH ROPS (ROLL-OVER PROTECTIVE STRUCTURE)/
FALLING OBJECTS PROTECTIVE STRUCTURE
When ROPS CERTIFICATION as shown in the
illustration is placed inside the cab, that cab is equipped
with the roll-over protective structure (ROPS) and the
falling objects protective structure (top guard level I).
Observe the following to ensure the function of the
protective structures.
• Do not modify the cab and the protective structures by
welding, drilling, or performing other modification on
them.
Even a slight modification can decrease the strength
of the protective structures.
• Do not correct or repair the cab and the protective
structures without contacting your KOBELCO
authorized dealer.
Ask your KOBELCO authorized dealer for inspection
for damages of the cab caused by fire, corrosion,
collision, or others.
The all damaged parts shall be restored by using the
genuine parts. For structural changes or part
replacements, be sure to ask your KOBELCO
authorized dealer.
• Fasten your seat belt during operation.
The protective structures are designed based on the
premise of fastening the seat belt.
Always fasten your seat belt during operation.
• Pay attention to the operating mass.
If the operating mass exceeds MAX. MASS
(maximum operating mass) described on ROPS
CERTIFICATION with the special attachment or others installed, it will cause insufficient protective function,
resulting in serious accidents or death when the machine tips/rolls over.
When the top guard is equipped with OPERATION PROTECTIVE GUARD CERTIFICATION, that cab is equipped
with the falling objects protective structure (top guard level II).
When the front guard is equipped with OPERATION PROTECTIVE GUARD CERTIFICATION, that cab is equipped
with the flying objects protector (front guard level II).
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［IMPORTANT INFORMATION］
ORDERING PARTS AND SERVICE
When ordering parts and service, have the machine serial number, the engine serial number and the current hours
of operation available for your KOBELCO authorized dealer.
The machine serial number and the engine serial number are stamped in the locations shown below. For future
reference, confirm and record these numbers in the spaces below.
MACHINE TYPE MACHINE SERIAL No. ENGINE SERIAL No. HOUR METER
S
L/h
L/h
MIN
50
40
30
30
20
2025
10
1015 5
0
0
24.4
ENGINE SERIAL No.
(” ”means engine serial number)
POSITION OF MACHINE SERIAL NUMBER
HOUR METER
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