Komatsu PC30MR-5 Manual

WENAM00150
HYDRAULIC EXCAVATOR
PC30MR-5
PC30MR-5
Operati n &
Maintenance Manual
SERIAL NUMBERS
ORIGINAL INSTRUCTIONS
Unsafe use f this machine may cause seri us
injury r death. Operat rs and maintenance
pers nnel must read this manual bef re perating
r maintaining this machine. This manual sh uld
be kept inside the cab f r reference and peri dically
reviewed by all pers nnel wh will c me int
c ntact with the machine.
WARNING
F50001 and up
F50001 and up
PC35MR-5
PC35MR-5

FOREWORD
Komatsu recommends that any service parts used for maintenance, repair or
replacement of emission control systems be genuine new Komatsu or Ko-
matsu approved rebuilt parts or assemblies or others parts of equivalent
quality, and that the engine be serviced by an authorized Komatsu distribu-
tor. Failure to follow these recommendations could result in ineffective serv-
ice, damage to the product or safety risks (including personal injury or
death).
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READ THIS MANUAL
This manual gives details of the operation and methods of inspection and maintenance for this machine that
must be obeyed in order to use the machine safely. Most accidents are caused by the failure to follow funda-
mental safety rules for the operation and maintenance of machines.
Read, understand and follow all precautions and warnings in this manual and on the machine before performing
operation and maintenance. Failure to do so may result in serious injury or death.
Komatsu cannot predict every circumstance that might involve a potential hazard when the machine is used.
Therefore, the safety messages in this manual and on the machine may not include all possible safety precau-
tions.
If you perform any operation, inspection, or maintenance under conditions that are not described in this manual,
understand that it is your responsibility to take the necessary precautions to ensure safety. In no event should
you or others engage in the prohibited uses or actions described in this manual. It is dangerous to perform im-
proper operation and maintenance of the machine. It may cause serious injury or death.
If you sell the machine, be sure to give this manual to the new owner together with the machine.
Always keep this Operation and Maintenance Manual in the storing location so that all relevant personnel can
read it at any time.
Keep it in the pocket inside the cover of toolbox under the oper-
ator's seat.
If this manual is lost or damaged, contact Komatsu or your Komatsu distributor and tell them about the machine
model name and the serial No. immediately to arrange for its replacement.
For details regarding the machine model name and the serial No., see the machine serial No. plate. In order to
arrange the proper Operation and Maintenance Manual, you will need to provide the machine model name and
the serial No.
This manual uses the International System of Units (SI) for units of measurement. For reference, units that have
been used in the past are given in { }.
The explanations, values, and illustrations in this manual have been prepared based on the latest information
available as of the date of its publication. Continuing improvements in the design of this machine may lead to
additional changes that are not reflected in this manual. Consult Komatsu or your Komatsu distributor for the
latest available information concerning your machine or with questions regarding information contained in this
manual.
The numbers in the illustrations correspond to the numbers in ( ) in the text. (Example: 1 → (1))
Komatsu delivers machines that comply with all applicable regulations and standards of the country to which it
has been shipped. If this machine has been purchased in another country, it may lack certain safety devices and
specifications that are necessary for use in your country. If there is any question about whether your product
complies with the applicable standards and regulations of your country, consult your Komatsu distributor before
operating the machine.
READ THIS MANUAL FOREWORD
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SAFETY INFORMATION
To enable you to use the machine safely, and to prevent personal injury to operators, service personnel or by-
standers, the precautions and warnings included in this manual and the safety signs attached to the machine
must always be observed.
To identify important safety messages in the manual and on the machine labels, the following signal words are
used.
The "Safety Alert Symbol" identifies important safety messages on machines, in manuals, and elsewhere. When
you see this symbol, be alert to the risk of personal injury or death. Follow the instructions in the safety mes-
sage.
This signal word indicates an imminently hazardous situation which, if not avoided, will result
in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury. It may also be used to alert against unsafe practices that may
cause property damage.
The following signal words are used to alert you to information that must be followed to avoid damage to the
machine.
If precautions described are not observed, the machine may be damaged or the service life
may be reduced.
This word is used for information that is useful to know.
FOREWORD SAFETY INFORMATION
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SAFETY LABELS
Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying
out operation or maintenance of the machine that may involve hazard.
This machine uses "Safety labels using pictograms" to indicate safety procedures.
SAFETY LABELS USING PICTOGRAMS
Safety pictograms use a picture to express a level of hazardous
condition equivalent to the signal word. These safety picto-
grams use pictures in order to let the operator or maintenance
worker understand the level and type of hazardous condition at
all times. Safety pictograms show the type of hazardous condi-
tion at the top or left side and the method of avoiding the haz-
ardous condition at the bottom or right side. In addition, the
type of hazardous condition is displayed inside a triangle and
the method of avoiding the hazardous condition is shown inside
a circle.
Komatsu cannot predict every circumstance that might involve
a potential hazard in operation and maintenance. Therefore,
the safety messages in this manual and on the machine may
not include all possible safety precautions.
If any procedures or actions not specifically recommended or
allowed in this manual are used, it is your responsibility to take
the necessary steps to ensure safety
In no event should you engage in prohibited uses or actions de-
scribed in this manual.
The explanations, values, and illustrations in this manual were prepared based on the latest information availa-
ble at that time. Continuing improvements in the design of this machine can lead to changes in detail which may
not be reflected in this manual
Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for ques-
tions regarding information in this manual.
The numbers in the illustrations correspond to the numbers in ( ) in the text.
SAFETY LABELS FOREWORD
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NOISE
Two labels indicating the machine noise level are affixed on the machine.
• Sound pressure level at the operator’s station, measured according to ISO 6396 (Dynamic test method, si-
mulated working cycle).
Canopy spec
Cab spec
The maximum value of the standard deviation of the meas-
ured time-averaged A-weighted emission sound pressure
level at the operator’s position is 2.5dB, in accordance with
ISO 11201.
• Sound power level emitted by the machine, measured ac-
cording to ISO 6395 (Dynamic test method, simulated
working cycle).
This is the guaranteed value as specified in European di-
rective 2000/14/EC. This value includes an uncertainty of
0.8dB.
ISO 6396
ISO 6396
2000/14/EC
FOREWORD NOISE
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VIBRATION LEVELS
When used for its intended purpose, levels of vibration for the earth-moving machine transmitted from the oper-
ator's seat are lower than or equal to the tested vibrations for the relative machinery class in compliance with
ISO 7096.
The actual acceleration value for the hands and arms is less than or equal to 2.5 m/s2 , the uncertainty for this
value is 1.2 m/s2 according to EN12096:1997.
The actual acceleration value for the body is less than or equal to 0.5 m/s2, the uncertainty for this value is 0.2
m/s2 according to EN12096:1997.
These values were determined using a representative machine and measured during the typical operating con-
dition indicated below according to the measurement procedures that are defined in the standards ISO 2631/1
and ISO 5349.
GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE
The following guides can help an operator of this machine to reduce the whole body vibration levels:
1. Use the correct equipment and attachments.
2. Maintain the machine according to this manual
• Tension of crawler (for crawler machines)
• Brake and steering systems
• Controls, hydraulic system and linkages
3. Keep the terrain where the machine is working and travelling in good condition
• Remove any large rocks or obstacles
• Fill any ditches and holes
• Site manager should provide machine operators with machine and schedule time to maintain terrain
conditions
4. Use a seat that meets ISO 7096 and keep the seat maintained and adjusted
• Adjust the seat and suspension for the weight and size of the operator
• Wear seat belt
• Inspect and maintain the seat suspension and adjustment mechanisms
5. Steer, brake, accelerate, and move the attachment levers and pedals slowly so that the machine moves
smoothly
6. Adjust the machine speed and travel path to minimize the vibration level
• When pushing with bucket or blade, avoid sudden loading; load gradually
• Drive around obstacles and rough terrain conditions
• Slow down when it is necessary to go over rough terrain
• Make the curve radius of travelling path as large as possible
• Travel at low speed when travelling around sharp curves
7. Minimize vibrations for long work cycle or long distance travelling
• Reduce speed to prevent bounce
• Transport machines long distances between worksites
8. The following guidelines can be effective to minimize risks of low back pain
• Operate the machine only when you are in good health
• Provide breaks to reduce long periods of sitting in the same posture
• Do not jump down from the cab or machine
• Do not repeatedly handle and lift loads
VIBRATION LEVELS FOREWORD
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INTRODUCTION
MAIN USE OF MACHINE
This Komatsu machine is designed to be used mainly for the following work:
• Digging work
• Ditching work
• Loading work
• Leveling work
For details of work procedure, see OPERATION, “RECOMMENDED APPLICATIONS”.
DEMOLITION WORK
kk
WARNING
• A demolition machine is a machine based on earth
moving machinery (see EN ISO 6165) and including
equipment and attachment (working tool - e.g. pro-
cessor or breaker) specifically designed to demolish,
cut, loosen, separate, pick up, transport and distribute
component parts of buildings or civil engineering
structures.
• This machine is not prepared for use in Demolition.
• Using this machine in demolition work gives an in-
creased risk of serious injury or death.
• All Komatsu machines that are specifically designed,
and can be used for demolition work, will display the
Komatsu demolition decal.
• If the machine does not display this decal and it is
necessary to carry out demolition work, contact your
distributor for information on demolition machinery compliant with the applicable standards.
DIRECTIONS OF MACHINE
(A) Front
(B) Rear
(C) Left
(D) Right
(E) Operator's seat
(F) Sprocket
FOREWORD INTRODUCTION
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In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's seat
when the operator's seat is facing the front and the sprocket is at the rear of the machine.
VISIBILITY FROM OPERATOR'S SEAT
The visibility of this machine required by visibility standards (ISO 5006) are shown in the drawing below.
Proximity visibility
The figure below shows a visibility from the machine at a spot 1.0 m away from outside the machine and 1.0 m
above the ground except of the right side which is 1.2 m above the ground.
12 m circumference visibility
The figure below shows a visibility from the machine for a circumference of 12 m. Shaded areas (A) and (B) in
the figure show areas, the views of which are blocked when the machine is equipped with the mirrors and other
visibility assistant devices. Be fully aware that there is an area where the operator cannot see when operating
the machine.
RKA64350
PROTECTIVE STRUCTURES
This machine is equipped with a structure to protect the operator (ROPS) conforming to ISO3471:2008.
INTRODUCTION FOREWORD
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PRODUCT INFORMATION
When requesting service or ordering replacement parts, inform your Komatsu distributor of the following items.
LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERI-
AL NO. PLATE
It is located on the front left of revolving frame.
The design of the nameplate varies according to the district.
LOCATION OF ENGINE NUMBER PLATE
It is stuck on the water separator bracket.
FOREWORD PRODUCT INFORMATION
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FLUORINATED GREENHOUSE GASES
Product contains fluorinated greenhouse gases.
SERVICE METER LOCATION
This is displayed on the machine monitor.
YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR
Machine serial No.
Engine serial No.
Product identification
number (PIN)
Manufacturers name:
Address: Komatsu Italia Manufacturing S.p.A.
Via Atheste, 4
35042 Este (PD)
Italy
Distributor name
Address
Service Personnel
Phone/Fax
Product contains
fluorinated
greenhouse gases
HFC-134a
GWP 1430 CO2eq. 1.00 t
0.7 kg
PRODUCT INFORMATION FOREWORD
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SERIAL PLATE
A SERIAL NUMBER E MACHINE DESIGNATION/TYPE
B WEIGHT F YEAR OF CONSTRUCTION
C PRODUCT IDENTIFICATION NUMBER G ENGINE POWER
D MANUFACTURER
FOREWORD SERIAL PLATE
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DECLARATION OF CONFORMITY
The manufacturer:
Komatsu Italia Manufacturing S.p.A.
Via Atheste, 4
35042 Este (PD)
Italy
Declares that this machines:
PC30MR-5
PC35MR-5
Fulfils all the relevant provisions of following EC Directives:
Machine Directive 2006/42/EC
Electro Magnetic Compatibility Directive 2014/30/EU
Outdoor Noise Directive 2000/14/EC amended by 2005/88/EC
Radio Equipment Directive 2014/53/EU
DECLARATION OF CONFORMITY FOREWORD
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TABLE OF CONTENTS
FOREWORD.................................................................................................................................................... 1-1
READ THIS MANUAL............................................................................................................................... 1-2
SAFETY INFORMATION .......................................................................................................................... 1-3
SAFETY LABELS ..................................................................................................................................... 1-4
NOISE....................................................................................................................................................... 1-5
VIBRATION LEVELS ................................................................................................................................ 1-6
GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE ................................................................ 1-6
INTRODUCTION ...................................................................................................................................... 1-7
MAIN USE OF MACHINE .................................................................................................................. 1-7
DEMOLITION WORK......................................................................................................................... 1-7
DIRECTIONS OF MACHINE.............................................................................................................. 1-7
VISIBILITY FROM OPERATOR'S SEAT ............................................................................................ 1-8
PROTECTIVE STRUCTURES........................................................................................................... 1-8
PRODUCT INFORMATION....................................................................................................................... 1-9
LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE ........ 1-9
LOCATION OF ENGINE NUMBER PLATE ........................................................................................ 1-9
FLUORINATED GREENHOUSE GASES......................................................................................... 1-10
SERVICE METER LOCATION......................................................................................................... 1-10
YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR............................................................ 1-10
SERIAL PLATE........................................................................................................................................1-11
DECLARATION OF CONFORMITY........................................................................................................ 1-12
SAFETY........................................................................................................................................................... 2-1
SAFETY LABELS ..................................................................................................................................... 2-2
LOCATION OF SAFETY LABELS...................................................................................................... 2-3
CONTENTS OF SAFETY LABELS .................................................................................................... 2-6
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE .................................... 2-17
PRECAUTIONS BEFORE STARTING OPERATION........................................................................ 2-17
PREPARATIONS FOR SAFE OPERATION ..................................................................................... 2-17
PRECAUTIONS TO PREVENT FIRE............................................................................................... 2-18
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE............................................................. 2-19
DO NOT GET CAUGHT IN WORK EQUIPMENT ............................................................................ 2-22
PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES........................................................ 2-22
PROTECTION AGAINST FALLING, FLYING OR INTRUDING OBJECTS....................................... 2-23
UNAUTHORIZED MODIFICATION.................................................................................................. 2-23
PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS .................................................... 2-23
PRECAUTIONS RELATED TO CAB GLASS ................................................................................... 2-23
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING..................................................... 2-24
PRECAUTIONS FOR OPERATION ........................................................................................................ 2-25
PRECAUTIONS FOR JOBSITE....................................................................................................... 2-25
START ENGINE............................................................................................................................... 2-27
PRECAUTIONS FOR OPERATION ................................................................................................. 2-28
PRECAUTIONS FOR TRANSPORTATION...................................................................................... 2-34
TOWING AND BEING TOWED........................................................................................................ 2-35
LIFTING OPERATION BY USING BUCKET WITH HOOK............................................................... 2-35
LIFTING OPERATION BY USING LIFTING DEVICE (OPTIONAL EQUIPMENT) ........................... 2-36
PRECAUTIONS FOR MAINTENANCE................................................................................................... 2-39
PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE ................................... 2-39
PRECAUTIONS FOR CHECK AND MAINTENANCE ...................................................................... 2-42
OPERATION .................................................................................................................................................... 3-1
GENERAL VIEW....................................................................................................................................... 3-2
MACHINE EQUIPMENT NAME ......................................................................................................... 3-2
CONTROLS AND GAUGES NAMES................................................................................................. 3-4
OTHER EQUIPMENT NAME............................................................................................................. 3-7
EXPLANATION OF COMPONENTS....................................................................................................... 3-10
EXPLANATION OF MACHINE MONITOR EQUIPMENT ................................................................. 3-10
SWITCHES...................................................................................................................................... 3-54
FOREWORD TABLE OF CONTENTS
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CONTROL LEVERS AND PEDALS................................................................................................. 3-62
OTHER EQUIPMENT ...................................................................................................................... 3-67
MACHINE OPERATIONS AND CONTROLS .......................................................................................... 3-91
CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE ........................................................ 3-91
METHOD FOR STARTING ENGINE...............................................................................................3-110
METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE ..................................3-113
METHOD FOR STOPPING ENGINE ..............................................................................................3-119
METHOD FOR STARTING MACHINE (TRAVEL FORWARD AND REVERSE) AND STOPPING MA-
CHINE........................................................................................................................................ 3-120
METHOD FOR STEERING MACHINE........................................................................................... 3-125
METHOD FOR SWINGING MACHINE .......................................................................................... 3-127
METHOD FOR OPERATING WORK EQUIPMENT ....................................................................... 3-128
HANDLE WORKING MODE .......................................................................................................... 3-131
PROHIBITED OPERATIONS......................................................................................................... 3-132
PRECAUTIONS FOR OPERATION............................................................................................... 3-137
PRECAUTIONS FOR WORKING ON SLOPE ............................................................................... 3-139
METHOD FOR ESCAPING FROM MUD ....................................................................................... 3-140
RECOMMENDED APPLICATIONS................................................................................................ 3-141
METHOD FOR LIFTING OBJECTS WITH LIFTING DEVICE ........................................................ 3-143
METHOD FOR REPLACING BUCKET .......................................................................................... 3-145
METHOD FOR PARKING MACHINE............................................................................................. 3-147
METHOD FOR CHECKING AFTER FINISHING WORK................................................................ 3-149
LOCK............................................................................................................................................. 3-149
HANDLE AIR CONDITIONER............................................................................................................... 3-157
EXPLANATION OF AIR CONDITIONER EQUIPMENT.................................................................. 3-157
METHOD FOR OPERATING AIR CONDITIONER......................................................................... 3-159
HANDLE RUBBER AND ROAD LINERS SHOES................................................................................. 3-161
RECOMMENDED USE OF RUBBER AND ROAD LINERS SHOES.............................................. 3-161
COMPARISON OF RUBBER ,ROAD LINERS SHOES AND STEEL SHOES................................ 3-161
WARRANTY OF RUBBER AND ROAD LINERS SHOES .............................................................. 3-161
PROHIBITED OPERATIONS WHEN USING RUBBER AND ROAD LINERS SHOES................... 3-161
PRECAUTIONS FOR USING RUBBER AND ROAD LINERS SHOES .......................................... 3-162
TRANSPORTATION.............................................................................................................................. 3-165
PRECAUTIONS FOR TRANSPORTING MACHINE ...................................................................... 3-165
SELECT TRANSPORTATION METHOD........................................................................................ 3-165
LOADING AND UNLOADING WITH TRAILER .............................................................................. 3-166
METHOD FOR LIFTING MACHINE............................................................................................... 3-172
COLD WEATHER OPERATION............................................................................................................ 3-176
COLD WEATHER OPERATION INFORMATION ........................................................................... 3-176
PRECAUTIONS AFTER DAILY WORK COMPLETION ................................................................. 3-177
AFTER COLD WEATHER SEASON .............................................................................................. 3-177
PRECAUTIONS FOR LONG-TERM STORAGE ................................................................................... 3-178
PREPARATION FOR LONG-TERM STORAGE............................................................................. 3-178
MAINTENANCE DURING LONG-TERM STORAGE...................................................................... 3-178
STARTING MACHINE AFTER LONG-TERM STORAGE............................................................... 3-179
TROUBLES AND ACTIONS ................................................................................................................. 3-180
ACTIONS WHEN RUNNING OUT OF FUEL ................................................................................. 3-180
PHENOMENA THAT ARE NOT FAILURES ................................................................................... 3-181
PRECAUTIONS FOR TOWING MACHINE.................................................................................... 3-182
PRECAUTIONS FOR SEVERE JOB CONDITION......................................................................... 3-182
PRECAUTIONS FOR DISCHARGED BATTERY ........................................................................... 3-183
OTHER TROUBLE......................................................................................................................... 3-187
MAINTENANCE............................................................................................................................................... 4-1
PRECAUTIONS FOR MAINTENANCE..................................................................................................... 4-2
CHECK SERVICE METER READING ............................................................................................... 4-2
KOMATSU GENUINE REPLACEMENT PARTS ................................................................................ 4-2
KOMATSU GENUINE LUBRICANTS................................................................................................. 4-2
ALWAYS USE CLEAN WASHER FLUID............................................................................................ 4-2
TABLE OF CONTENTS FOREWORD
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FRESH AND CLEAN LUBRICANTS .................................................................................................. 4-2
CHECK DRAINED OIL AND USED FILTER....................................................................................... 4-2
PRECAUTIONS FOR REFILLING OIL OR FUEL .............................................................................. 4-2
PRECAUTIONS FOR WELDING ....................................................................................................... 4-2
DO NOT DROP THINGS INSIDE MACHINE ..................................................................................... 4-2
DUSTY JOBSITES............................................................................................................................. 4-2
AVOID MIXING OIL............................................................................................................................ 4-3
LOCK INSPECTION COVERS .......................................................................................................... 4-3
PRECAUTIONS WHEN SWINGING BOOM ...................................................................................... 4-3
PRECAUTIONS WHEN OPENING AND CLOSING COOLING COVER............................................ 4-3
BLEED AIR FROM HYDRAULIC CIRCUIT ........................................................................................ 4-3
PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES ............................................................. 4-3
CHECKS AFTER INSPECTION AND MAINTENANCE...................................................................... 4-3
METHOD FOR OPERATING AIR CONDITIONER............................................................................. 4-3
FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE........................................... 4-4
OUTLINE OF MAINTENANCE.................................................................................................................. 4-5
HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC .................................................. 4-5
HANDLE ELECTRICAL COMPONENTS ........................................................................................... 4-8
HANDLE HYDRAULIC COMPONENTS............................................................................................. 4-8
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS................................................................ 4-9
MAINTENANCE SCHEDULE...................................................................................................................4-11
MAINTENANCE SCHEDULE TABLE................................................................................................4-11
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER ............................................................. 4-12
MAINTENANCE PROCEDURE .............................................................................................................. 4-13
INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 100 HOURS) .................................. 4-13
WHEN REQUIRED .......................................................................................................................... 4-13
CHECKS BEFORE STARTING........................................................................................................ 4-41
EVERY 100 HOURS MAINTENANCE ............................................................................................. 4-41
EVERY 250 HOURS MAINTENANCE ............................................................................................. 4-44
EVERY 500 HOURS MAINTENANCE ............................................................................................. 4-45
EVERY 1000 HOURS MAINTENANCE ........................................................................................... 4-54
EVERY 1500 HOURS MAINTENANCE ........................................................................................... 4-57
EVERY 2000 HOURS MAINTENANCE ........................................................................................... 4-57
EVERY 4000 HOURS MAINTENANCE ........................................................................................... 4-66
SPECIFICATIONS ........................................................................................................................................... 5-1
SPECIFICATIONS .................................................................................................................................... 5-2
SPECIFICATIONS: PC30MR-5.......................................................................................................... 5-2
SPECIFICATIONS: PC35MR-5.......................................................................................................... 5-4
EXPLANATION OF LIFT CAPACITY CHART............................................................................................ 5-6
ATTACHMENTS AND OPTIONS ..................................................................................................................... 6-1
PRECAUTIONS FOR USING ATTACHMENT AND OPTIONS.................................................................. 6-2
PRECAUTIONS WHEN SELECTING ................................................................................................ 6-2
READ THE OPERATION AND MAINTENANCE MANUAL THOROUGHLY....................................... 6-2
PRECAUTIONS WHEN REMOVING AND INSTALLING ................................................................... 6-2
PRECAUTIONS FOR USING ............................................................................................................ 6-2
QUICK COUPLER SYSTEM..................................................................................................................... 6-4
HANDLING QUICK COUPLER .......................................................................................................... 6-4
HANDLE BUCKET WITH HOOK............................................................................................................... 6-8
PRECAUTIONS FOR OPERATION ................................................................................................... 6-8
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT .................................................... 6-9
EXPLANATION OF COMPONENTS ON MACHINES WITH ATTACHMENT ..................................... 6-9
METHOD FOR CHANGING OVER AND CONNECTING HYDRAULIC CIRCUIT OF MACHINES
READY FOR INSTALLATION OF ATTACHMENT ........................................................................ 6-10
METHOD FOR OPERATING ATTACHMENT................................................................................... 6-12
LONG-TERM STORAGE ................................................................................................................. 6-15
SPECIFICATIONS ........................................................................................................................... 6-16
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT (2nd/3rd LINE) .......................... 6-17
EXPLANATION OF COMPONENTS (2nd/3rd LINE)........................................................................ 6-17
FOREWORD TABLE OF CONTENTS
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METHOD FOR CONNECTING HYDRAULIC CIRCUIT OF MACHINE READY FOR INSTALLATION
ATTACHMENT (2nd/3rd LINE) ..................................................................................................... 6-19
METHOD FOR OPERATING ATTACHMENT (2nd/3rd LINE)........................................................... 6-20
HANDLE HEATER .................................................................................................................................. 6-22
EXPLANATION OF HEATER COMPONENTS................................................................................. 6-22
METHOD FOR USING HEATER...................................................................................................... 6-22
ATTACHMENTS AND OPTIONS ............................................................................................................ 6-24
INSTALL ATTACHMENT.................................................................................................................. 6-24
RECOMMENDED ATTACHMENT OPERATIONS................................................................................... 6-26
HYDRAULIC BREAKER .................................................................................................................. 6-26
REPLACEMENT PARTS.................................................................................................................................. 7-1
PERIODIC REPLACEMENT OF DEFINED LIFE PARTS.......................................................................... 7-2
DEFINED LIFE PARTS LIST.............................................................................................................. 7-2
CONSUMABLE PARTS ............................................................................................................................ 7-3
CONSUMABLE PARTS LIST............................................................................................................. 7-3
RECOMMENDED FUEL, COOLANT, AND LUBRICANT .......................................................................... 7-4
LUBRICATION CHART...................................................................................................................... 7-4
METHOD FOR USING FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERA-
TURE ............................................................................................................................................. 7-6
RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS .............. 7-7
INDEX.............................................................................................................................................................. 8-1
TABLE OF CONTENTS FOREWORD
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SAFETY
Please read and make sure that you fully understand the precautions descri-
bed in this manual and the safety labels on the machine. When operating or
servicing the machine, always follow these precautions strictly.
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SAFETY LABELS
kk
WARNING
Be sure that you fully understand the correct position, content and how to avoid a danger shown in the
safety labels.
Handle the warning signs and safety labels used on this machine as follows.
• Always keep the safety labels clean so that you can read it properly. When cleaning the safety labels, do
not use organic solvents or gasoline. These may cause the labels to peel off.
• If the safety labels are damaged, lost, or cannot be read properly, replace them with new ones. For details
of the part numbers for the safety labels, see this manual or the actual label, and place an order to your
Komatsu distributor.
• There are also other labels in addition to the warning signs and safety labels. Handle those labels in the
same way.
SAFETY LABELS SAFETY
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